chore(release): v2026.10.12 [skip ci]

The mark t2's acceptance (c) asked for lived in connection.py's discovery section and
the README, but the parser for that output is this module, so a reader looking at the
parser met the claim ("the real output has one `package:<id>` per line") without its
provenance. It is now stated where that reader starts: the module docstring carries a
"MARK — documented, not observed (t62 nit c)" paragraph saying that `pm list packages
-3` printing `package:<id>` lines and `resolve-activity --brief` printing
`package/activity` are Android's documented shapes, not a captured run — no real
Shield was available when discovery was written (t57), and no fixture in this repo
captures either command — and `parse_package_list`'s tolerance note now points at that
mark instead of calling the shape "real". Wording mirrors the state=6 buffering
inference (ha_adb_common/media_session.py, echoed in media_player.py) and the existing
connection.py mark.

Docstrings only: stripping every docstring leaves an AST identical to HEAD's, so no
behaviour changes. The two existing marks stay accurate and are untouched
(connection.py still says the shapes are Android's documentation and the parsers in
ha_adb_common.installed_apps are deliberately tolerant; the README still marks every
discovery output shape as documented-not-observed).

.gitea/workflows/release.yml

@@ -1,10 +1,19 @@
-# Publish a date-based release every time master moves.
+# Publish a date-based release every time master moves — and keep HACS able to
+# see every one of them (t42).
 #
-# Versioning is date-based: vYYYY.MM.DD. Priority rule — an unreleased `version`
-# declared in custom_components/nvidia_shield/manifest.json wins (bump the
-# manifest to force a specific release, e.g. after a meaningful change); otherwise
-# the version is today's date (UTC), so a plain push to master publishes the
-# day's release. Repeated pushes on the same day are deduped by tag existence.
+# Versioning is date-based: vYYYY.MM.DD, plus a same-day suffix (YYYY.MM.DD.N)
+# for further releases in the same UTC day. The decision lives in
+# scripts/determine-release-version.sh so it can be tested locally:
+#   the manifest `version` is untagged  -> that version (bump it to force one)
+#   else today's UTC date is untagged   -> vYYYY.MM.DD
+#   else                                -> vYYYY.MM.DD.N, lowest untagged N >= 2
+#
+# Why the write-back below exists: the resolved version is written into
+# custom_components/nvidia_shield/manifest.json and committed BEFORE the tag, so
+# the released artifact and its tag always agree. Without it HACS compares the
+# installed version against a manifest that never moves — v2026.10.09 was
+# published while master's manifest still said 2026.10.08, so the second release
+# of that day was offered to nobody.
 #
 # The Gitea release carries a nvidia_shield.zip asset (custom_components/
 # nvidia_shield/) so the integration is installable manually from any release.
@@ -28,15 +37,28 @@ concurrency:
   cancel-in-progress: false
 
 permissions:
-  # The job token pushes the tag and creates the release.
+  # The job token pushes the manifest commit and the tag, and creates the release.
   contents: write
 
 env:
   ZIP_NAME: nvidia_shield.zip
+  MANIFEST: custom_components/nvidia_shield/manifest.json
 
 jobs:
   release:
     runs-on: ubuntu-latest
+    # t42/t44 R3: this job pushes the write-back commit itself, and a run starting
+    # from that commit would release the same version twice. The guard is anchored to
+    # the release commit's SUBJECT (`chore(release): …`), not to the `[skip ci]`
+    # marker anywhere in the message: a developer commit whose body happens to
+    # mention [skip ci] must still release — with contains() it silently did not.
+    # The marker stays in the commit message because it is the convention Gitea
+    # itself may honour to skip the run outright (README documents that platform
+    # layer, and that the job guard is a no-op there rather than the trigger).
+    # workflow_dispatch has no head_commit, hence the first clause.
+    if: >-
+      github.event_name == 'workflow_dispatch' ||
+      !startsWith(github.event.head_commit.message || '', 'chore(release):')
     steps:
       - uses: actions/checkout@v4
         with:
@@ -45,61 +67,115 @@ jobs:
           ref: master
           token: ${{ secrets.GITEA_TOKEN }}
 
-      - name: Determine release version
+      - name: Determine the release version
         id: version
         run: |
           set -euo pipefail
-          MANIFEST_VERSION="$(jq -r .version custom_components/nvidia_shield/manifest.json)"
-          DATE_VERSION="$(date -u +%Y.%m.%d)"
-          # An unreleased manifest version wins over today's date.
-          if git rev-parse -q --verify "refs/tags/v${MANIFEST_VERSION}" >/dev/null; then
-            VERSION="${DATE_VERSION}"
-          else
-            VERSION="${MANIFEST_VERSION}"
-          fi
-          echo "tag=v${VERSION}" >> "$GITHUB_OUTPUT"
-          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
-          if git rev-parse -q --verify "refs/tags/v${VERSION}" >/dev/null; then
-            echo "v${VERSION} is already tagged — nothing to release"
-            echo "exists=yes" >> "$GITHUB_OUTPUT"
-          else
-            echo "releasing v${VERSION}"
-            echo "exists=no" >> "$GITHUB_OUTPUT"
-          fi
+          # VERSION/TAG/SOURCE/BUMP/RELEASE go to stdout and, because GITHUB_OUTPUT
+          # is set inside a step, to this job's outputs too. RELEASE=no means the
+          # version already exists: tag and publish nothing.
+          scripts/determine-release-version.sh
 
-      - name: Create tag
-        if: steps.version.outputs.exists == 'no'
+      - name: Write the version back into the manifest
+        id: bump
+        if: steps.version.outputs.RELEASE == 'yes' && steps.version.outputs.BUMP == 'yes'
+        env:
+          VERSION: ${{ steps.version.outputs.VERSION }}
         run: |
           set -euo pipefail
           git config user.name  "gitea-actions"
           git config user.email "actions@notexpectedyet.com"
-          git tag -a "${{ steps.version.outputs.tag }}" -m "Release ${{ steps.version.outputs.tag }}"
-          git push origin "refs/tags/${{ steps.version.outputs.tag }}"
+
+          python3 - "$MANIFEST" "$VERSION" <<'PY'
+          import json, pathlib, sys
+          path, version = pathlib.Path(sys.argv[1]), sys.argv[2]
+          data = json.loads(path.read_text(encoding="utf-8"))
+          data["version"] = version
+          path.write_text(json.dumps(data, indent=2) + "\n", encoding="utf-8")
+          PY
+
+          git add "$MANIFEST"
+          git commit -m "chore(release): v${VERSION} [skip ci]"
+
+          # Never tag a commit whose manifest the default branch does not carry:
+          # a branch protection rule (or a push that landed underneath this run)
+          # rejecting this push makes the release impossible, so stop loudly and
+          # say what to do instead of publishing an inconsistent artifact.
+          if ! git push origin HEAD:master; then
+            echo "::error::could not push the release commit for v${VERSION}: the" \
+              "default branch rejected it (branch protection, or it moved during" \
+              "this run). Nothing was tagged or published. Bump ${MANIFEST} to" \
+              "${VERSION} manually, commit it, and re-run this workflow." >&2
+            exit 1
+          fi
+
+      - name: Verify the released manifest on master
+        if: steps.version.outputs.RELEASE == 'yes'
+        env:
+          VERSION: ${{ steps.version.outputs.VERSION }}
+        run: |
+          set -euo pipefail
+          # Read the manifest from the REMOTE default branch, not from the
+          # workspace: that is the copy HACS fetches, and it has to already carry
+          # the version about to be tagged.
+          git fetch --quiet origin master
+          REMOTE_VERSION="$(git show "origin/master:${MANIFEST}" | jq -r '.version')"
+          if [ "$REMOTE_VERSION" != "$VERSION" ]; then
+            echo "::error::master's manifest says ${REMOTE_VERSION} but v${VERSION}" \
+              "is being released — refusing to publish an inconsistent artifact." \
+              "Re-run once master settles." >&2
+            exit 1
+          fi
+          echo "master's manifest is ${REMOTE_VERSION}, matching v${VERSION}"
+
+      - name: Create tag
+        if: steps.version.outputs.RELEASE == 'yes'
+        env:
+          TAG: ${{ steps.version.outputs.TAG }}
+        run: |
+          set -euo pipefail
+          git config user.name  "gitea-actions"
+          git config user.email "actions@notexpectedyet.com"
+          # HEAD is the commit the manifest was just verified on: the bumped one
+          # when a write-back was needed, else the pushed commit itself. The tag
+          # and the artifact therefore name the same version.
+          git tag -a "${TAG}" -m "Release ${TAG}"
+          git push origin "refs/tags/${TAG}"
 
       - name: Build the release zip
-        if: steps.version.outputs.exists == 'no'
+        if: steps.version.outputs.RELEASE == 'yes'
         run: |
           set -euo pipefail
           cd custom_components
           zip -r "../${ZIP_NAME}" nvidia_shield
 
       - name: Publish the release
-        if: steps.version.outputs.exists == 'no'
+        if: steps.version.outputs.RELEASE == 'yes'
         env:
-          VERSION: ${{ steps.version.outputs.version }}
-          TAG: ${{ steps.version.outputs.tag }}
+          VERSION: ${{ steps.version.outputs.VERSION }}
+          TAG: ${{ steps.version.outputs.TAG }}
+          BUMP: ${{ steps.version.outputs.BUMP }}
           SERVER: ${{ github.server_url }}
           REPO: ${{ github.repository }}
           TOKEN: ${{ secrets.GITEA_TOKEN }}
         run: |
           set -euo pipefail
 
-          # Notes: subject lines of the commits in the released range.
-          PREV="$(git describe --tags --abbrev=0 "${TAG}^" 2>/dev/null || true)"
-          if [ -n "$PREV" ]; then
-            RANGE="${PREV}..${TAG}"
+          # Notes: subject lines of the commits in the released range — the
+          # commits a DEVELOPER wrote. With a write-back (BUMP=yes) the tag points
+          # at the bot's own commit, so the range has to stop at its parent or every
+          # release would open with "chore(release): vX [skip ci]". Without one the
+          # tag is the pushed commit itself and belongs in the notes (t44 R1).
+          if [ "$BUMP" = "yes" ]; then
+            NOTES_END="${TAG}^"
           else
-            RANGE="${TAG}"
+            NOTES_END="${TAG}"
+          fi
+          PREV="$(git describe --tags --abbrev=0 "${NOTES_END}^" 2>/dev/null || true)"
+          if [ -n "$PREV" ]; then
+            RANGE="${PREV}..${NOTES_END}"
+          else
+            RANGE="${NOTES_END}"
           fi
           {
             echo "Release ${TAG}"

.gitea/workflows/test.yml

@@ -0,0 +1,219 @@
+# Quality gate: lint + unit tests + the HA API-drift sweep.
+#
+# The test suite is stdlib-only (parsers, intents, running-apps) and runs the
+# vendored ha_adb_common helpers without installing Home Assistant — see
+# tests/conftest.py. androidtvremote2 is installed so the real-library
+# volume/TYPED-dict tests execute (tests/test_protocol_transport.py). Real
+# firmware captures live in tests/fixtures
+# (how to capture more: docs/RESEARCH_SHIELD.md §8).
+#
+# Home Assistant is installed in exactly two jobs: `ha-api-drift` (below) and
+# `real-ha-config-flow`. Both exist because every other job validates our code
+# against hand-written stubs, which stay green even when a call site no longer
+# matches the real API. That is how three drifts reached master (t36 D1/D2/D3) —
+# see tests/ha_api_drift.py.
+
+name: Test
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install test tooling
+        run: |
+          set -euo pipefail
+          # Try the plain install first: it succeeds on images whose Python is
+          # not externally managed (and on pip < 23, which has no PEP 668
+          # enforcement at all). When the runner image DOES mark its Python as
+          # externally managed — Debian/Ubuntu based Gitea act images do — pip
+          # refuses with externally-managed-environment and we retry with the
+          # sanctioned override. That override is safe here specifically
+          # because the job runs in a disposable container, and because the
+          # flag only exists on pip >= 23.0.1, the same version that raises
+          # the refusal in the first place.
+          #
+          # Tools are pinned to the versions the suite was validated against so
+          # a newer ruff rule set cannot redden the gate on unrelated commits;
+          # androidtvremote2 tracks the manifest floor so CI exercises the same
+          # dependency users install.
+          PKGS="pytest~=9.1 pytest-asyncio~=1.4 ruff~=0.17.0 'androidtvremote2>=0.2.0'"
+          if ! eval python3 -m pip install --quiet $PKGS; then
+            echo "system Python is externally managed; retrying with --break-system-packages"
+            eval python3 -m pip install --quiet --break-system-packages $PKGS
+          fi
+
+      - name: Lint
+        run: ruff check custom_components tests
+
+      - name: Unit tests
+        run: python3 -m pytest tests -q
+
+  # Resolve every Home-Assistant API use in our production modules against a
+  # real install: imports, keyword arguments and await/sync mismatches. The
+  # sweep is repo-owned (tests/ha_api_drift.py) and skips cleanly when
+  # Home Assistant is absent, so it is inert in the job above and live here.
+  ha-api-drift:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Provision the interpreter Home Assistant needs
+        uses: actions/setup-python@v5
+        with:
+          # Home Assistant 2026.10.1 declares Requires-Python >= 3.14.2 (PyPI
+          # metadata; tests/ha_api_drift.py holds our copy of that number and the
+          # drift suite pins it against the installed distribution), so the
+          # runner's own python3 cannot install the version this gate must run
+          # against. This resolves the newest 3.14.x patch; the guard below
+          # refuses anything still short of the floor rather than letting the
+          # install fail halfway through.
+          python-version: "3.14"
+
+      - name: Check the interpreter satisfies Home Assistant's floor
+        run: |
+          set -euo pipefail
+          # The floor comes from tests/ha_api_drift.py — one source of truth for
+          # this guard and the metadata pin in tests/test_ha_api_drift.py.
+          python3 - <<'PY'
+          import sys
+          from pathlib import Path
+
+          sys.path.insert(0, str(Path("tests").resolve()))
+          from ha_api_drift import HOMEASSISTANT_PYTHON_FLOOR as FLOOR  # noqa: E402
+
+          needed = ".".join(str(part) for part in FLOOR)
+          if sys.version_info < FLOOR:
+              print(
+                  f"Home Assistant needs Python >= {needed}, but this job runs "
+                  f"{sys.version.split()[0]}."
+              )
+              print(f"Fix: raise actions/setup-python in this job to a >= {needed} build.")
+              raise SystemExit(1)
+          print(f"interpreter ok: Python {sys.version.split()[0]} satisfies >= {needed}")
+          PY
+
+      - name: Install Home Assistant + test tooling
+        run: |
+          set -euo pipefail
+          # Same PEP 668 dance as the test job (see the note there). The
+          # version floor tracks what we validate against; a resolver failure
+          # here is a real signal (Python too old), not something to swallow.
+          PKGS="pytest~=9.1 pytest-asyncio~=1.4 'homeassistant>=2026.10'"
+          if ! eval python3 -m pip install --quiet $PKGS; then
+            echo "system Python is externally managed; retrying with --break-system-packages"
+            eval python3 -m pip install --quiet --break-system-packages $PKGS
+          fi
+
+      - name: HA API-drift sweep
+        run: python3 -m pytest tests/test_ha_api_drift.py -q
+
+  # The real-HA config-flow tests (tests/test_config_flow_real_ha.py) are the
+  # ONLY place the config flow meets the real homeassistant.data_entry_flow
+  # machinery — and that file SKIPS ITSELF at import time when homeassistant is
+  # absent (pytest.importorskip at module scope). A skipped file and a passing
+  # one are indistinguishable in the jobs above: `python3 -m pytest tests -q`
+  # ends in "N passed, 1 skipped" and still exits 0, and the drift sweep never
+  # touches this file. That is exactly how three real-HA-only facts stayed
+  # hidden while five gates were green:
+  #
+  #   * a menu row id must equal its async_step_<id> method name (otherwise the
+  #     real FlowManager raises when the row is dispatched),
+  #   * the rendered step_id must equal the row id, and
+  #   * async_show_menu takes no errors kwarg.
+  #
+  # So this job does two things the others cannot: it installs the real stack on
+  # Home Assistant's interpreter floor, and it FAILS LOUDLY if the tests are
+  # skipped instead of run. Do not "simplify" the guard at the bottom away — a
+  # test file that skips silently is indistinguishable from one that passes.
+  real-ha-config-flow:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Provision the interpreter Home Assistant needs
+        uses: actions/setup-python@v5
+        with:
+          # Same floor as the ha-api-drift job: Home Assistant 2026.10.1
+          # declares Requires-Python >= 3.14.2 (tests/ha_api_drift.py holds our
+          # copy of that number). This resolves the newest 3.14.x patch.
+          python-version: "3.14"
+
+      - name: Ensure uv is available
+        run: |
+          set -euo pipefail
+          # uvx runs the exact command this gate was validated with locally;
+          # runner images are not guaranteed to ship it.
+          if ! command -v uvx >/dev/null 2>&1; then
+            python3 -m pip install --quiet uv \
+              || python3 -m pip install --quiet --break-system-packages uv
+          fi
+          uvx --version
+
+      - name: Check the interpreter satisfies Home Assistant's floor
+        run: |
+          set -euo pipefail
+          # The floor comes from tests/ha_api_drift.py — one source of truth for
+          # this guard and the metadata pin in tests/test_ha_api_drift.py. uvx
+          # resolves the same interpreter the test step will use, so a too-old
+          # interpreter fails here rather than halfway through the install.
+          uvx --python 3.14 python - <<'PY'
+          import sys
+          from pathlib import Path
+
+          sys.path.insert(0, str(Path("tests").resolve()))
+          from ha_api_drift import HOMEASSISTANT_PYTHON_FLOOR as FLOOR  # noqa: E402
+
+          needed = ".".join(str(part) for part in FLOOR)
+          if sys.version_info < FLOOR:
+              print(
+                  f"Home Assistant needs Python >= {needed}, but this job runs "
+                  f"{sys.version.split()[0]}."
+              )
+              raise SystemExit(1)
+          print(f"interpreter ok: Python {sys.version.split()[0]} satisfies >= {needed}")
+          PY
+
+      - name: Real-HA config-flow tests
+        run: |
+          set -euo pipefail
+          LOG=/tmp/real-ha-config-flow.log
+          # Verbatim the command this gate is validated with locally; -rs is what
+          # makes a silent skip visible in the log.
+          set +e
+          uvx --python 3.14 --with 'homeassistant>=2026.10' --with adb-shell \
+            --with pytest-asyncio \
+            pytest tests/test_config_flow_real_ha.py -q -rs 2>&1 | tee "$LOG"
+          rc=${PIPESTATUS[0]}
+          set -e
+          if [ "$rc" -ne 0 ]; then
+            echo "::error::the real-HA config-flow tests exited $rc"
+            exit "$rc"
+          fi
+
+          # THE GUARD. Some pytest versions exit 0 for a file that skipped
+          # itself, so the exit code above is not enough. The last line of a -q
+          # run is the counts line ("26 passed in 1.6s" / "1 skipped in
+          # 0.01s"); it must report PASSED tests and nothing else.
+          summary=$(grep -v '^[[:space:]]*$' "$LOG" | tail -n 1)
+          echo "pytest summary: $summary"
+          case "$summary" in
+            [0-9]*" passed"*) ;;
+            *)
+              echo "::error::the real-HA config-flow tests did not run (summary: $summary)"
+              echo "The file skips itself when homeassistant/probatio is missing — a skip here is a FAILURE, not a pass."
+              exit 1
+              ;;
+          esac
+          case "$summary" in
+            *skipped*|*failed*|*error*|*"no tests ran"*)
+              echo "::error::the real-HA config-flow run was not a clean pass (summary: $summary)"
+              exit 1
+              ;;
+          esac

README.md

@@ -9,7 +9,9 @@ This is a **Shield-only fork** of [ltomes/ha-nvidia-shield](https://github.com/l
 ADB as the state source, and no dependency on separate `androidtv` / `androidtv_remote`
 integrations.
 
-> **Status:** early fork, actively rebuilt. Releases are date-based (`v2026.10.08`).
+> **Status:** early fork, actively rebuilt. Releases are date-based
+> (`vYYYY.MM.DD`, plus `vYYYY.MM.DD.N` for a second release in the same day) —
+> see [Releases](#releases) for how a push becomes one.
 > Expect rough edges until the MVP phases land. The build-out plan is in
 > [`docs/MVP_PLAN.md`](docs/MVP_PLAN.md); device research is in
 > [`docs/RESEARCH_SHIELD.md`](docs/RESEARCH_SHIELD.md).
@@ -52,14 +54,193 @@ Changes inherited from upstream still apply in 0.1.x code: polling is timer-base
 the ADB connection lives inside the media player entity, and fallback app state
 arrives in Phase 3.
 
+## State ladder and fallback semantics (Phase 3)
+
+The media player state is decided top-down; each tier serves only when the
+ones above it are silent. Both transports live in the entry's
+`ShieldConnectionManager` (`connection.py`) — ADB is the state source, the
+remote protocol is the fast push/command path:
+
+1. **Plug off** — the power switch says `off` → `off`.
+2. **Protocol power push** (`is_on`) — `False` → `off`; `None` falls through.
+3. **Intent** — a just-sent command's target state, self-healing against
+   reality within 30 s (retry goes over the transport that served it).
+4. **Jellyfin** — `playing` / `paused` while a Jellyfin session is active.
+5. **ADB media session** — `playing` / `paused` / `buffering` for apps that
+   publish a session (foreground app preferred). `buffering` is the media
+   session's PlaybackState **6** (`state=PlaybackState {state=6, …}`) — the
+   stock-Android buffering value, **inferred** from that line shape: no captured
+   fixture here contains `state=6` and no real device was available. A buffering
+   session advertises the playback controls exactly like `playing`.
+6. **Idle** — the device is powered (protocol `is_on` true, ADB awake, or the
+   power plug on) and nothing is playing, or ADB reports it asleep (standby).
+   A powered Shield with an app open and nothing playing reads `idle`.
+7. **On** — **no source reported a power or playback fact** (t58 UNIT 0; the
+   earlier wording said "no data", which was too loose). `on` is the "we cannot
+   know" state and the only situation it describes, so every source that
+   *answers* — including an answer of "not playing" — stops the ladder at
+   `idle` at worst, never here:
+   - a configured **Jellyfin** entity in **any** state: `idle`, `off`,
+     `standby` and `unavailable` all mean "its session is not playing", so they
+     report — and because the ladder keeps going, a silent Jellyfin still
+     cannot mask a live media session below it;
+   - a **live media session with no playback flag** — the app publishes a
+     session but is not playing, paused or buffering;
+   - a **bare foreground app** — the protocol's `current_app` push or the ADB
+     `mResumedActivity` parse answered;
+   - a configured **power entity**, whatever it currently says;
+   - protocol `is_on` / ADB awake, plugged or not.
+   `on` survives only for an entry where none of those exists, and it never
+   masks a `playing`/`paused`/`buffering` source.
+
+The foreground tier is what keeps an app's identity visible while the state is
+`idle`: the `current_app` protocol push (then the ADB `mResumedActivity`
+parse), with its title from the TTL-capped last-known-state cache, the last
+channel entered, or the zero-cost "audio playback" hint
+(`media recently active`) — never resurrecting `playing` past the 60 s state
+TTL.
+
+TiviMate (`ar.tvplayer.tv`) is the documented no-session case: it publishes
+no MediaSession on Shield Android 11 (RESEARCH_SHIELD R2), so tiers 5–6 plus
+the audio hint are what keep it visible.
+
+**Standalone setup** offers both state sources at once — the Nvidia Remote
+Protocol (PIN pairing) and ADB media-session mode — enabled by default, with the
+Shield's address pre-filled when discovery found it. Either can be turned off,
+and each pairing step can be skipped (that transport stays off until you pair
+it), so ADB-only, protocol-only and fully passive entries are all one click
+apart. The `no_state_source` form error fires only when neither is enabled.
+
+There is no other integration in the loop: one address, two transports, and the
+integration reads the device itself.
+
+### Channel entry options
+
+The options flow exposes the §7 channel behavior the integration replicates:
+the inter-digit **delay** (0.05–1.0 s, default 0.1) and the optional
+**ENTER press** after the digits (off by default — TiviMate's validated
+behavior). Both are consumed by `play_media` with
+`media_content_type: channel`.
+
+### YAML seeding (optional, seed-only)
+
+An optional `nvidia_shield:` block in `configuration.yaml` **seeds** an
+interactive setup flow — nothing is created without the user walking the
+standard flow, and pairing stays interactive exactly as with UI setup. The UI is
+the primary path; the block exists so a provisioning/fleet setup can supply the
+address and the transport choice.
+
+A complete, copy-pasteable block (every key is optional except an address):
+
+```yaml
+nvidia_shield:
+  - name: Living Room        # the entry's title (default: NVIDIA Shield)
+    host: 10.0.0.31          # the Shield's IP — the one address field
+    adb_port: 5555           # optional; the standard ADB port
+    adb_enabled: true        # optional; the block's shape decides (see below)
+```
+
+`host` is the current key. `protocol_host` and `adb_host` are **still accepted**
+(protocol first, then ADB) so an existing `configuration.yaml` keeps seeding:
+the address is a prefill hint either way, and the PIN/ADB pairing still happens
+in the flow. `adb_enabled` defaults to what the block implies — an address under
+`host`/`adb_host` marks ADB as part of the block, a protocol-only block leaves it
+off — and an explicit `adb_enabled` wins over the shape. Blocks without any
+address are ignored with a warning.
+
+The seed carries the address, the ADB toggle and the entry's name; everything
+else (Jellyfin, receiver, power switch, app name/icon maps, channel timing, the
+`adb_command` service) is set on the entry's **Configure** page after setup, or
+during the interactive flow.
+Duplicate guards: a block matching an existing entry's host (or its
+virtual `yaml:…` unique_id) aborts and never re-seeds a UI-configured
+host. Removing the YAML block creates or deletes nothing — entries live
+in the storage registry and require user consent to remove. Deleting/re-
+adding is the only way to move an imported entry between hosts; the UI is
+the contractual path (YAML is the seed, the flow is the truth).
+
+### Raw `adb_command` service (opt-in)
+
+When enabled in the integration's options (`adb_command_enabled`, **default
+off**), the integration registers the `nvidia_shield.adb_command` service:
+send a raw ADB shell command to the entry's persistent connection
+(`{"command": "your-command", "entity_id": "media_player.<yours>"}` — the
+entity is optional when exactly one entry provides the service). This is the
+same security posture as the Home Assistant core `androidtv` integration: a
+documented, opt-in escape hatch for debugging and automation, registered at
+setup and unregistered when the last participating entity unloads. It
+rejects (logs a warning, sends nothing) when the ADB connection is down.
+
+## Replacing androidtv / androidtv_remote + the glue
+
+This fork replaces the old `androidtv` media player, the `androidtv_remote`
+integration and the surrounding YAML glue — there is nothing to keep alongside
+it: the entry's own two transports cover the whole device.
+
+1. **Back up** your `configuration.yaml` and note the Shield's IP address.
+2. **Remove the old platform YAML** — the `media_player:` blocks using
+   `platform: androidtv` or `platform: androidtv_remote`, any `universal` media
+   player template that fanned them in, and the `remote:`/`switch:` shims you
+   added around them.
+3. **Remove the `mediasession2mqtt` bridge** — its sensors and the MQTT topics
+   feeding them are replaced by this integration (table below).
+4. **Delete the old integrations** in Settings > Devices & Services, then
+   **restart** Home Assistant.
+5. **Add this integration** — Settings > Devices & Services > Add Integration >
+   "NVIDIA Shield" — or seed it from `configuration.yaml` with the block above,
+   then walk the pairing steps.
+6. **Update your automations and dashboards** to the new entities:
+   `media_player.<entry>`, `remote.<entry>`, `sensor.<entry>_current_app`,
+   `sensor.<entry>_now_playing`, and the `media_dag_*` attributes.
+
+What each retired piece used to provide, and what covers it now:
+
+| Retired piece | Covered by |
+|---------------|------------|
+| `androidtv` playback state | the ADB media-session state ladder (`playing` / `paused` / `buffering` / `idle` / `off`, plus `on` only when no source reported a power or playback fact) |
+| `androidtv` app name / `app_id` lookups | the manager's store + the app-name map + the manifest label of the app that is currently on screen (fetched on demand; a failed fetch is retried on the next poll instead of being cached as a permanent miss) |
+| `androidtv_remote` power, volume and key commands | the protocol transport: the `remote` entity, `media_player` volume, `KEYCODE_*` commands |
+| `androidtv_remote` availability | the availability contract (protocol `is_on`, ADB awake, power switch) |
+| `universal` media player templates | the media player entity's own attributes plus the `media_dag_*` attributes |
+| `mediasession2mqtt` sensors | `sensor.current_app`, `sensor.now_playing` and the `media_dag_*` attributes |
+
+**Wholphin** publishes no MediaSession metadata of its own; its now-playing
+comes from the ADB media session — the same tier every other app uses — so it
+needs no bridge either.
+
+The appendix in [`docs/RESEARCH_SHIELD.md`](docs/RESEARCH_SHIELD.md) holds the
+full retirement mapping this section summarises.
+
 ## Releases
 
-- **Date-based versioning**: `vYYYY.MM.DD` (e.g. `v2026.10.08`).
+- **Date-based versioning**: `vYYYY.MM.DD`, and `vYYYY.MM.DD.N` (N from 2) for a
+  second release in the same UTC day.
 - Pushes to `master` on [Gitea](https://git.notexpectedyet.com/notexpectedyet/ha-nvidia-shield)
-  run the release workflow (`.github/workflows/release.yml`):
-  - A plain push publishes the current day's release (same-day pushes are deduped).
-  - Bumping `version` in `custom_components/nvidia_shield/manifest.json` forces that
-    specific version's release before the date fallback kicks in.
+  run the release workflow (`.gitea/workflows/release.yml`):
+  - A plain push publishes today's release. If that date is already tagged it takes
+    the lowest free `.N`, so a gap left by an earlier failure is reused rather than
+    skipped.
+  - Setting `version` in `custom_components/nvidia_shield/manifest.json` to an
+    untagged value releases exactly that version instead.
+- **The release commit.** When the resolved version differs from the manifest, the
+  workflow writes it back, commits `chore(release): v<VERSION> [skip ci]`, pushes it
+  to `master`, and tags *that* commit. It has to do this: HACS compares the installed
+  version against the manifest on the default branch, so a release that only ever
+  existed as a tag is offered to nobody (v2026.10.09 shipped that way).
+  - Because the tag names the bot commit, `git describe --tags` on a *developer*
+    commit reports the **previous** release. That is expected, not a missing tag.
+  - Bump it by hand instead and the tag lands on your own commit: set `version` in
+    the manifest, commit, push. The workflow then has nothing to write back (it sees
+    an untagged manifest version and tags your commit).
+- **`[skip ci]`**: the bot commit carries it, and the workflow's job additionally
+  checks the commit *subject* (`chore(release): …`), so a write-back cannot start a
+  second release. Both only recognise release commits — a normal commit whose message
+  body merely mentions `[skip ci]` can still be skipped by Gitea's own handling, so
+  keep the marker out of ordinary commit messages.
+- The workflow refuses to publish unless the default branch's manifest already carries
+  the version it is about to tag, and fails loudly (with a "bump the manifest by hand"
+  instruction and nothing tagged) if the write-back push is rejected, for example by
+  branch protection.
 - Releases land on Gitea with the tag and a `nvidia_shield.zip` asset for manual
   installs. (No automatic mirroring — see the HACS note below.)
 
@@ -85,10 +266,15 @@ directory, restart, then add the integration from **Settings → Devices & Servi
 ## Configuration
 
 1. Settings > Devices & Services > Add Integration > "NVIDIA Shield"
-2. Select the Android TV Remote entity for your Shield
-3. Enable ADB if you want now-playing from all apps
-4. If ADB is enabled, the next step will pair — approve the prompt on the Shield
-5. Optionally configure Jellyfin, receiver, power switch
+2. Give it a name and its address — the Shield's IP, pre-filled when discovery
+   found the device
+3. Both transports are on by default: **Read state over ADB** (now-playing from
+   every app) and **Add the Nvidia Remote Protocol** (power, availability, app
+   push, volume readout). Uncheck what you do not want.
+4. If ADB is enabled, the next step pairs it — approve the prompt on the Shield
+5. The remote protocol pairs next — type the PIN shown on the Shield, or
+   continue without pairing (that transport stays off until you pair it)
+6. Optionally configure Jellyfin, receiver, power switch
 
 ### ADB Pairing
 
@@ -98,20 +284,322 @@ device page in HA.
 
 Requirements: Settings > Developer options > Network debugging enabled on the Shield.
 
+### Discovery (zeroconf)
+
+Home Assistant can discover a Shield through the `_androidtvremote2._tcp`
+service, and the discovered address is pre-filled on the setup form. The dedup
+rules are Home Assistant's own, and they differ with what the discovery carries:
+
+- **with** the device MAC, a duplicate aborts as "already configured", and an
+  existing entry's address is updated when it changed;
+- **without** a MAC, the flow follows HA's stricter
+  `_async_handle_discovery_without_unique_id` contract: **any** existing entry
+  for this integration aborts the discovery, and only one discovery flow runs at
+  a time.
+
+So a second (or third) Shield that advertises no MAC has to be added **manually**
+— Settings > Devices & Services > Add Integration > "NVIDIA Shield" — rather than
+by discovery. That is a deliberate, tested contract (t37 D3), not a bug: the
+helper the flow calls is a coroutine and its dedup only runs when awaited.
+
 ### Options
 
+The Configure page is a **menu of sub-screens**, not one long form. Home Assistant
+renders it as a list of rows; each row opens a short form and comes back to the menu,
+and only **Save and close** commits:
+
+| Row | What it holds |
+| --- | --- |
+| **Main setup** | Shield address, ADB port, `Read state over ADB`, `Add the Nvidia Remote Protocol`, `Show title and artist`, `Allow the adb_command action`, Jellyfin player, power switch |
+| **Receiver** | the receiver/soundbar entity and the input it uses |
+| **Apps** | the apps table — one row per app (see below) |
+| **Scripts** | one optional script per command, plus the remote-entity script, the channel digit delay and send-ENTER |
+| **Save and close** | writes the merged options and reloads the integration |
+
+Every field that used to be on the single page is still there, under one of those
+rows. Edits are merged **per key**, so visiting another sub-screen (or saving from a
+later one) never drops what an earlier one changed. Half-finished pages are not
+written: closing the dialog without **Save and close** leaves the entry as it was.
+
+The **setup** flow follows the same shape: its first form is unchanged (name, host,
+transports, the linked entities), and after it the flow is a menu — **Receiver**,
+**Connection**, **Set up ADB**, **Pair the remote protocol**, **Create the entry** — so
+anything you want to correct is one row away instead of buried in a form you have
+already submitted. The two pairing rows appear only while that transport still needs
+pairing (a skip leaves its row there to retry; a successful pairing removes it), and
+the menu's description names what is still to pair.
+
+### The Apps table
+
+The **Apps** row is an editable table. One app per line, in the documented format:
+
+```
+ar.tvplayer.tv=TiviMate
+com.plex.hdx=Plex|http://192.168.1.10:9000/plex.png
+com.netflix.ninja=Netflix
+```
+
+`package=name` is enough; an optional `|icon` after the name adds a picture (a URL, or
+a `camera.*` entity id — see *Sources* below). The field always opens carrying the
+current rows, so adding, renaming or deleting an app is an edit to that text:
+
+- **add a row** — type a new line
+- **edit a row** — change its name, icon or package id
+- **remove a row** — delete its line
+
+A blank field clears the table (and the integration falls back to its built-in app
+list). A malformed row — no `=`, or an empty name — is rejected with an error on the
+page rather than being half-saved.
+
+A receiver may be a **`switch.*`** as well as a `media_player.*`: a soundbar or
+speaker that only knows on and off is a valid receiver. Playback then **ensures
+that switch is on**: `turn_on`, `play_media` and `select_source` call
+`switch.turn_on` when — and only when — it reports `off`, and touch nothing else
+about it (never volume, never a toggle). An already-on switch gets no call at all,
+a switch whose state cannot be read (`unavailable`/`unknown`) is left alone rather
+than guessed at, and a receiver that is off while the Shield is idle stays off.
+That is what makes receiver **volume scripts unnecessary** for this shape: there is
+no volume to script, only an on/off state to ensure. A `media_player.*` receiver
+keeps its own behaviour — input selection and attribute enrichment.
+
 - **Jellyfin Media Player** — auto-detected or manually selected
-- **Receiver + Input** — for media-zone coordination
+- **Receiver + Input** — for media-zone coordination; `media_player` or `switch`
 - **Power Switch** — smart plug entity
-- **ADB Host/Port** — override auto-detection if needed
+- **Read state over ADB / Add the Nvidia Remote Protocol** — turn either
+  transport on or off
+- **Shield address / ADB port** — the Shield's IP, and the ADB port if you
+  changed it from 5555
+- **Command scripts** — one optional script per command, plus one for the remote
+  entity; see below
+
+### Command scripts (per-command overrides)
+
+Some commands need hardware this integration deliberately does not drive: a speaker
+switch that owns the volume, an AVR input that has to move with the Shield, a mute
+that has to hit two devices. For those, the Configure page takes a **script per
+command**:
+
+| Command | Runs when | Variables passed |
+| --- | --- | --- |
+| `turn_on`, `turn_off` | turn on/off, from the media player *or* the remote | — |
+| `volume_up`, `volume_down` | volume step | — |
+| `volume_set` | absolute volume (there is no native path — the protocol has VOLUME_UP/DOWN/MUTE only) | `level` |
+| `volume_mute` | mute/unmute | `is_volume_muted` |
+| `select_source` | source selection (the app list drives it natively; a script overrides) | `app_name` |
+
+A command with a script calls the script **instead of** the protocol/ADB path, never
+both. Left unset — the default — every command behaves exactly as it did before, and
+clearing a selector on the Configure page restores that. Two of the seven appear as
+services only when there is something to do: `volume_set`, which has no native path at
+all, and `select_source`, which is offered once the integration has sources to offer
+(the app list below) — or a script.
+
+The scripts are ordinary Home Assistant scripts. This block covers all three awkward
+cases: a speaker switch owning the volume, an AVR owning the input, and a mute that
+has to hit the switch as well.
+
+```yaml
+script:
+  shield_volume:                      # select as "Volume set script"
+    alias: Shield volume (speaker switch)
+    sequence:
+      - action: media_player.volume_set
+        target:
+          entity_id: media_player.living_room_speaker
+        data:
+          volume_level: "{{ level }}"
+  shield_source:                      # select as "Select source script"
+    alias: Shield source (AVR)
+    sequence:
+      - action: media_player.select_source
+        target:
+          entity_id: media_player.avr
+        data:
+          source: "{{ app_name }}"
+  shield_mute:                        # select as "Mute script"
+    alias: Shield mute (speaker switch)
+    sequence:
+      - choose:
+          - conditions: "{{ is_volume_muted }}"
+            sequence:
+              - action: switch.turn_off
+                target:
+                  entity_id: switch.living_room_speaker
+        default:
+          - action: switch.turn_on
+            target:
+              entity_id: switch.living_room_speaker
+```
+
+Then set `script.shield_volume` as **Volume set script**, `script.shield_source` as
+**Select source script** and so on on the Configure page. Scripts are set there, not
+in the YAML seed above — the seed only carries the address and the transport choice.
+
+A script that fails surfaces as a translated error on the service call that triggered
+it (the command is not retried over protocol/ADB), because a silent no-op is the one
+outcome that leaves you guessing.
+
+### App discovery (what is actually installed)
+
+The Configure page can ask the Shield which apps it has, so the **Apps** table does not
+start from a four-entry guess. Pick **Discover installed apps** on the Configure menu
+and the table is rebuilt from two ADB queries:
+
+| Command | What it returns | How it is treated |
+| --- | --- | --- |
+| `pm list packages -3` | every **third-party** (user-installed) package, one `package:<id>` per line | all of them become rows |
+| `cmd package resolve-activity --brief -c android.intent.category.HOME` | the **active launcher** (`com.google.android.tvlauncher/…MainActivity`) | its package is appended |
+
+System apps are **not** enumerated — a Shield ships a few hundred of them and they are
+not launchable apps — with the one exception that matters: the active launcher, which
+is a system app yet is exactly what the user sees. Nothing else is filtered, so an app
+is missing only if Android itself does not report it.
+
+*(Every output shape above is the **documented** Android one, not an observed
+capture: no real Shield was available when this was written, so
+`pm list packages -3`, `resolve-activity --brief` and `pm dump` are exercised from
+fixtures — the same "inferred, not observed" mark the state=6 buffering value
+carries in the source ladder above.)*
+
+Names come from the same cached path the Current App sensor uses: a `pm dump` per
+package, parsed for `application-label`, cached for 24 h. A full sweep runs the dumps
+in a small burst (4 at a time, 50 ms apart), which finishes a typical Shield in
+seconds instead of the minutes a strictly serialised sweep would take; the commands
+share the watchdog's own ADB connection, and `adb-shell` serialises the I/O on it, so
+the burst queues politely instead of interleaving on the socket. A label fetch
+that **fails is not cached**, so that app shows its package id in this table and the
+next sweep tries again — this is the same rule as the entity path, and it is why a
+transient ADB hiccup no longer sticks.
+
+Icons are **best effort and explicitly heuristic**: `pm dump` does not expose an app's
+icon resource (an extracted APK's icon is a bitmap only its own code can resolve), so
+there is no device icon to read. Each app gets a curated `package → mdi:` icon where we
+know one — Netflix, YouTube, Kodi, Plex, Spotify, the launcher, TiviMate, Wholphin —
+and `mdi:television` otherwise. The icon never enters your **icon column**: that column
+is a picture URL or a `camera.*` entity and feeds `entity_picture`, so writing an
+`mdi:` name there would put a value the media player cannot use into your own map.
+
+Discovery does not run on the watchdog: the Configure row runs it, the dashboard
+sensor refreshes the table when it has no fresh one, and the result is cached for 6 h.
+With ADB off, or unreachable, the table simply shows the rows you wrote yourself and
+the menu says why. A sweep that **could not run** is not cached as an answer: it is
+recorded as `unknown` and retried, so a Shield that was asleep at startup is picked up
+by the next refresh instead of reporting an empty device for six hours.
+
+**For dashboards** the same table is a sensor: `sensor.<name>_installed_apps`, whose
+state is the app **count** and whose `installed_apps` attribute is the list of
+`{package, name, icon}`. Its `discovery` attribute says `ok`, `pending`, `unknown`,
+`not_connected` or `adb_disabled`: `ok` means the table IS the answer — including a
+genuinely empty one — and `unknown` means the last sweep could not run (an empty list
+then says nothing about the device, and the next refresh retries). It only exists for
+ADB-enabled entries, and it is cheap to refresh — `homeassistant.update_entity` on it
+re-runs the sweep only when there is no fresh table (the cache expired, or the last
+sweep could not run), while the Configure row forces one.
+
+```yaml
+# every installed app, with the name this integration would show
+{{ state_attr('sensor.living_room_shield_installed_apps', 'installed_apps') }}
+          | map(attribute='name') | list }}
+```
+
+### Sources (the app list in a dropdown)
+
+The media player's source list is your **Apps** map — the same map app-name resolution
+uses. With no map configured it falls back to a small built-in list
+(TiviMate, Wholphin, Netflix, YouTube), so a universal-media-player card always has
+something to show. Discovery fills the **Configure** table, not this fallback: the
+dropdown stays exactly the map you saved, so what a card offers is always what you
+chose. An app that discovery found and you want in the dropdown is one row to add.
+
+**Apps are sources, not browser media.** This integration no longer publishes the app
+directory through HA's media **Browser**: the Browse dialog shows an **empty tree** for
+this entity (the device name, no rows) instead of a second, inconsistent copy of the
+same list — the user report was *"Media Browser shows Apps. To me it should probably be
+integrated with the home assistant media display, keep select sources for apps"*.
+Everything an app row could do lives in `source_list` and `media_player.select_source`
+below, and nothing else on this entity is browsable, so there is no dead entry to click
+and nothing else the browser could show.
+
+```yaml
+# a media-player card, or anything that reads source_list
+type: media-control
+entity: media_player.living_room_shield
+```
+
+- **`source_list`** — the app names. They come from the map (in the order it lists
+  them), so editing the map renames the dropdown entries.
+- **`source`** — the app currently on screen, resolved exactly like the Current App
+  sensor: your map first, then the cached device label, then the raw package.
+- **`media_player.select_source`** — picks one **by name** and launches it over the
+  protocol, the same path `play_media` uses for apps. A raw package id works too (that
+  holds the package id), names match case-insensitively, and a name that
+  is not in the list is an error rather than a silent no-op:
+
+```yaml
+action: media_player.select_source
+target:
+  entity_id: media_player.living_room_shield
+data:
+  source: TiviMate
+```
+
+Selecting a source is sometimes more than launching an app — an AVR input, a speaker
+switch. That is what the **Select source script** above is for: with one configured it
+replaces the native launch entirely.
+
+#### Known limits (the Apps map)
+
+The map is your own override, so two shapes are accepted rather than papered over:
+
+- **Names differing only by case** (`com.a=Dup`, `com.b=dup`) offer **one** dropdown
+  row — the first spelling — because name matching is case-insensitive. The shadowed
+  app is not lost: `media_player.select_source` accepts its own package id.
+- A **padded value** typed by hand (`com.x=  Netflix  `) is shown cleaned in the
+  dropdown, but `app_name`, `source` and the Current App sensor
+  display the map value **verbatim** — so `source` can be a string that is not in
+  `source_list`. A blank value falls through to the raw package instead.
+
+### Remote command script
+
+`remote.send_command` sends protocol keys: repeats, long presses (`START_LONG`/
+`END_LONG`) and inter-repeat delays. Some setups need that call to go somewhere else —
+an IR bridge, a macro, a second device — so one optional **Remote command script**
+replaces the whole key path when it is set. It receives the service's own parameters,
+named as they are on the service:
+
+| Variable | Meaning |
+| --- | --- |
+| `command` | the list of key commands as submitted, e.g. `["HOME", "KEYCODE_DPAD_CENTER"]` |
+| `num_repeats` | how many times to send them (default `1`) |
+| `delay_secs` | the delay between repeats in seconds (default `0.0`) |
+| `hold_secs` | the requested long-press duration (default `0.0`) — the script owns the key semantics, so it decides what "hold" means |
+
+```yaml
+script:
+  shield_remote:                      # select as "Remote command script"
+    alias: Shield remote (IR bridge)
+    sequence:
+      - action: remote.send_command
+        target:
+          entity_id: remote.living_room_bridge
+        data:
+          command: "{{ command }}"        # a list: pass it through
+          num_repeats: "{{ num_repeats }}"
+          delay_secs: "{{ delay_secs }}"
+          hold_secs: "{{ hold_secs }}"
+```
+
+All four variables are always present, including their defaults, so a script can rely
+on the shape. Unset — the default — nothing changes: keys go out over the protocol
+exactly as before.
 
 ## Entities
 
 | Entity | Type | Description |
 |--------|------|-------------|
 | Media Player | `media_player` | Main entity with playback controls and metadata |
-| Current App | `sensor` | Currently running app |
-| Now Playing | `sensor` | Formatted now-playing string |
+| Current app (`sensor.current_app`) | `sensor` | Currently running app |
+| Now playing (`sensor.now_playing`) | `sensor` | Formatted now-playing string |
 | Pair ADB | `button` | Initiate or re-pair ADB connection |
 
 ## Development

custom_components/nvidia_shield/__init__.py

@@ -1,16 +1,156 @@
-"""The Nvidia Shield integration."""
+"""The Nvidia Shield integration.
+
+Phase 1 architecture (docs/MVP_PLAN.md §2): the entry owns a single
+ShieldConnectionManager stored in ``entry.runtime_data`` — the persistent ADB
+socket and all ADB-derived state live there, not on the entities. Entities are
+thin callback-views over the manager's StateStore.
+
+ADB is optional: a failed/absent ADB connection never blocks setup (no
+ConfigEntryNotReady) — the manager retries in the background, or stays
+passive until the user pairs via the Pair ADB button.
+"""
 
 import logging
+import os
 
+from homeassistant import config_entries
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import Platform
+from homeassistant.const import EVENT_HOMEASSISTANT_STOP, Platform
 from homeassistant.core import HomeAssistant
 
-from .const import DOMAIN
+from .adb_session import AdbMediaSessionPoller
+from .connection import ShieldConnectionManager
+from .const import (
+    CONF_ADB_ENABLED,
+    CONF_ADB_HOST,
+    CONF_ADB_PORT,
+    CONF_ANDROIDTV_ENTITY,
+    CONF_HOST,
+    CONF_PROTOCOL_ENABLED,
+    CONF_PROTOCOL_HOST,
+    DEFAULT_ADB_PORT,
+    DEFAULT_NAME,
+    DOMAIN,
+    ENTRY_VERSION,
+    SERVICE_ADB_COMMAND,
+)
+from .helpers import (
+    entry_host,
+    protocol_cert_paths,
+    resolve_adb_config,
+    seed_adb_enabled,
+    seed_host,
+)
 
 _LOGGER = logging.getLogger(__name__)
 
-PLATFORMS = [Platform.MEDIA_PLAYER, Platform.SENSOR, Platform.BUTTON]
+PLATFORMS = [Platform.MEDIA_PLAYER, Platform.SENSOR, Platform.REMOTE, Platform.BUTTON]
+
+
+async def async_setup(hass: HomeAssistant, config) -> bool:
+    """Domain setup: actions (always-on) + optional YAML seeding (t30 U1).
+
+    YAML is SEED-ONLY (user ruling): every ``nvidia_shield`` block starts an
+    interactive SOURCE_IMPORT config flow — nothing is created without the
+    user walking the flow, and pairing stays interactive exactly as for UI
+    setup. Removing the YAML block creates OR deletes nothing. UI-configured
+    entries are never re-seeded (host/MAC duplicate guards).
+    """
+    domain_config = (config or {}).get(DOMAIN)
+    for block in _yaml_seed_blocks(domain_config or []):
+        if not seed_host(block):
+            _LOGGER.warning(
+                "nvidia_shield YAML block without an address ignored: %s",
+                block.get("name", "<unnamed>"),
+            )
+            continue
+        hass.async_create_task(
+            hass.config_entries.flow.async_init(
+                DOMAIN,
+                context={"source": config_entries.SOURCE_IMPORT},
+                data=block,
+            )
+        )
+    # t29 G8 (kept here across the t30 splice): the action registers ALWAYS
+    from .media_player import _ADB_COMMAND_SCHEMA, _async_adb_command_service
+
+    hass.services.async_register(
+        DOMAIN,
+        SERVICE_ADB_COMMAND,
+        _async_adb_command_service,
+        schema=_ADB_COMMAND_SCHEMA,
+    )
+    return True
+
+
+def _yaml_seed_blocks(domain_config) -> list[dict]:
+    """Normalize the optional YAML domain key into seed blocks (t30 U1)."""
+    blocks: list[dict] = []
+    raw_list = domain_config if isinstance(domain_config, list) else [domain_config]
+    for block in raw_list:
+        if not isinstance(block, dict):
+            continue
+        name = block.get("name") or DEFAULT_NAME
+        # t32 F4 (review rider): the seed honors the block's shape — a
+        # protocol-only block does NOT force ADB on. t41: the address is ONE
+        # field (`host`, or a legacy protocol_host/adb_host).
+        seed = {
+            "name": name,
+            CONF_ADB_ENABLED: seed_adb_enabled(block),
+            CONF_HOST: seed_host(block),
+            CONF_ADB_PORT: int(block.get(CONF_ADB_PORT) or DEFAULT_ADB_PORT),
+        }
+        if block.get("unique_id"):
+            seed["unique_id"] = str(block["unique_id"])
+        blocks.append(seed)
+    return blocks
+
+
+async def _build_poller_factory(hass: HomeAssistant, entry: ConfigEntry):
+    """Poller factory when ADB is configured AND usable today, else None.
+
+    Returning None leaves the manager passive: the entry still sets up, the
+    entities simply see no ADB state. The Pair ADB button / reconfigure
+    triggers a reload that re-evaluates this.
+    """
+    if not entry.options.get(CONF_ADB_ENABLED, False):
+        return None
+
+    adb = resolve_adb_config(hass, entry)
+    if adb is None:
+        _LOGGER.warning(
+            "ADB enabled but no host resolvable for entry %s — continuing "
+            "without ADB state.",
+            entry.title,
+        )
+        return None
+
+    # Only auto-connect when a key already exists — an ADB handshake against
+    # an unpaired device is pointless noise (pairing happens via the Pair ADB
+    # button / config flow, untouched).
+    key_path_ready = await hass.async_add_executor_job(
+        os.path.exists, adb.key_path
+    )
+    if not key_path_ready:
+        _LOGGER.info(
+            "ADB key not found for entry %s — skipping auto-connect. "
+            "Use the Pair ADB button or reconfigure the integration.",
+            entry.title,
+        )
+        return None
+
+    # t32 F1 (review repair): the audit-sanctioned FACTORY RE-READ — the
+    # host/port resolve from entry.options AT CALL TIME, so the poller built
+    # after a zeroconf IP change targets the NEW address without a reload
+    # (the setup-time closure pinned the old address). A key-path change
+    # still needs the Pair ADB button / reconfigure reload, by design.
+    def _factory():
+        adb_now = resolve_adb_config(hass, entry)
+        if adb_now is None:
+            return None
+        return AdbMediaSessionPoller(adb_now.host, adb_now.port, adb_now.key_path)
+
+    return _factory
 
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
@@ -18,10 +158,114 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     hass.data.setdefault(DOMAIN, {})
     hass.data[DOMAIN][entry.entry_id] = entry
 
+    manager = ShieldConnectionManager(
+        hass,
+        entry,
+        poller_factory=await _build_poller_factory(hass, entry),
+        protocol_settings=await _build_protocol_settings(hass, entry),
+        invalid_auth_callback=lambda: entry.async_start_reauth(hass),
+    )
+    entry.runtime_data = manager
+    await manager.async_start()
+
+    # Close the persistent socket on Home Assistant stop as well as unload.
+    async def _close_on_hass_stop(_event) -> None:
+        await manager.async_stop()
+
+    entry.async_on_unload(
+        hass.bus.async_listen_once(EVENT_HOMEASSISTANT_STOP, _close_on_hass_stop)
+    )
+
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
-    entry.async_on_unload(entry.add_update_listener(_async_update_listener))
+    return True
 
+
+async def _build_protocol_settings(hass: HomeAssistant, entry: ConfigEntry):
+    """Manager protocol_settings when the transport is enabled & resolvable.
+
+    The address is the entry's own single field (t41). Nothing is derived from
+    another integration.
+    """
+    if not entry.options.get(CONF_PROTOCOL_ENABLED, False):
+        return None
+
+    host = entry_host(entry)
+    if not host:
+        _LOGGER.info(
+            "Protocol enabled for entry %s but no host resolvable — continuing "
+            "without the remote-protocol transport. Pair via the flow.",
+            entry.title,
+        )
+        return None
+
+    certfile, keyfile = await hass.async_add_executor_job(protocol_cert_paths, hass)
+    return {
+        "host": host,
+        "client_name": entry.title or "Home Assistant",
+        "certfile": certfile,
+        "keyfile": keyfile,
+    }
+
+
+async def async_migrate_entry(hass: HomeAssistant, config_entry: ConfigEntry) -> bool:
+    """Migrate an older config entry to the current version.
+
+    v1 → v2 added the remote-protocol fields (ADB options carried over
+    untouched). v2 → v3 (t41) mirrors the two changes in the stored shape:
+
+    * the duplicated address fields collapse into the single CONF_HOST — the
+      protocol host wins, else the ADB host, since both name the same Shield;
+    * the androidtv-entity key goes. This integration owns the whole stack now:
+      the entity it used to configure is neither a state source nor an app-name
+      or power tier, so keeping the value would only mislead.
+
+    Downgrades (version > ENTRY_VERSION) are rejected so HA offers a rollback.
+    """
+    if config_entry.version > ENTRY_VERSION:
+        return False
+    if config_entry.version >= ENTRY_VERSION:
+        return True
+
+    options = {**config_entry.options}
+    data = {**config_entry.data}
+
+    if config_entry.version < 2:
+        options.setdefault(CONF_PROTOCOL_ENABLED, False)
+
+    if not options.get(CONF_HOST):
+        options[CONF_HOST] = (
+            options.get(CONF_PROTOCOL_HOST)
+            or options.get(CONF_ADB_HOST)
+            or data.get(CONF_PROTOCOL_HOST)
+            or data.get(CONF_ADB_HOST)
+            or ""
+        )
+
+    dropped_entity = options.pop(CONF_ANDROIDTV_ENTITY, None)
+    dropped_entity = data.pop(CONF_ANDROIDTV_ENTITY, None) or dropped_entity
+    for legacy_key in (CONF_PROTOCOL_HOST, CONF_ADB_HOST):
+        options.pop(legacy_key, None)
+        data.pop(legacy_key, None)
+
+    hass.config_entries.async_update_entry(
+        config_entry, data=data, options=options, version=ENTRY_VERSION
+    )
+    if dropped_entity:
+        _LOGGER.info(
+            "%s: config entry migrated to version %d — dropped the androidtv "
+            "entity %s (this integration reads the Shield directly; the entry "
+            "needs no external media_player)",
+            config_entry.title,
+            ENTRY_VERSION,
+            dropped_entity,
+        )
+    else:
+        _LOGGER.info(
+            "Migrated %s config entry to version %d",
+            config_entry.title,
+            ENTRY_VERSION,
+        )
     return True
 
 
@@ -30,11 +274,12 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
 
     if unload_ok:
+        manager = getattr(entry, "runtime_data", None)
+        if manager is not None:
+            await manager.async_stop()
+            entry.runtime_data = None
         hass.data[DOMAIN].pop(entry.entry_id)
 
     return unload_ok
 
 
-async def _async_update_listener(hass: HomeAssistant, entry: ConfigEntry) -> None:
-    """Handle options update."""
-    await hass.config_entries.async_reload(entry.entry_id)

custom_components/nvidia_shield/adb_session.py

@@ -1,15 +1,24 @@
-"""ADB media session reader for NVIDIA Shield.
+"""ADB session adapter for NVIDIA Shield.
 
-Thin wrapper around ha_adb_common.AdbClientBase — adds the Shield-specific
-`poll()` method that calls wake check + media session in sequence.
+Since Phase 1 this module is a thin adapter on top of ha_adb_common:
+
+- ``ensure_adb_key`` (re-exported here for the config flow / Pair ADB button)
+  does the one-time key-material setup — the pairing flow stays untouched.
+- ``AdbMediaSessionPoller`` remains the protocol-level ADB client used by the
+  ShieldConnectionManager (connection.py) and one-shot pairing connects. The
+  polling loop itself lives in the connection manager, not here.
 
 Re-exports MediaSessionInfo and ensure_adb_key for existing importers.
 """
 
 import logging
 
-from .ha_adb_common import AdbClientBase, ensure_adb_key as _ensure_adb_key
-from .ha_adb_common import MediaSessionInfo  # noqa: F401  (re-export)
+from .ha_adb_common import (
+    AdbClientBase,
+    MediaSessionInfo,  # noqa: F401  (re-export)
+    parse_foreground,
+)
+from .ha_adb_common import ensure_adb_key as _ensure_adb_key
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -35,3 +44,13 @@ class AdbMediaSessionPoller(AdbClientBase):
                 prefer its media session over stale sessions from other apps.
         """
         return await self.poll_media_sessions(foreground_package)
+
+    async def poll_foreground(self) -> str | None:
+        """Foreground package via `dumpsys activity activities` (RESEARCH R4).
+
+        The grep keeps the dump tiny; the parser handles the R4 line wrap.
+        """
+        dump = await self.shell("dumpsys activity activities 2>/dev/null | grep -iE 'resumed'")
+        if not dump:
+            return None
+        return parse_foreground(dump)

custom_components/nvidia_shield/button.py

@@ -5,19 +5,17 @@ import logging
 from homeassistant.components.button import ButtonEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers import entity_registry as er
-from homeassistant.helpers.entity import DeviceInfo
+from homeassistant.helpers.entity import DeviceInfo, EntityCategory
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
 from .adb_session import AdbMediaSessionPoller, ensure_adb_key
 from .const import (
     CONF_ADB_ENABLED,
-    CONF_ADB_HOST,
     CONF_ADB_PORT,
-    CONF_ANDROIDTV_ENTITY,
     DEFAULT_ADB_PORT,
     DOMAIN,
 )
+from .helpers import entry_host
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -36,6 +34,7 @@ class NvidiaShieldPairAdbButton(ButtonEntity):
 
     _attr_has_entity_name = True
     _attr_name = "Pair ADB"
+    _attr_entity_category = EntityCategory.CONFIG
     _attr_icon = "mdi:link-variant"
 
     def __init__(self, hass: HomeAssistant, entry: ConfigEntry) -> None:
@@ -52,29 +51,11 @@ class NvidiaShieldPairAdbButton(ButtonEntity):
             model="Shield TV",
         )
 
-    def _resolve_host(self) -> str | None:
-        """Resolve ADB host from config or Android TV entity."""
-        host = self._entry.options.get(CONF_ADB_HOST)
-        if host:
-            return host
-
-        atv_entity = self._entry.data.get(CONF_ANDROIDTV_ENTITY)
-        if not atv_entity:
-            return None
-
-        registry = er.async_get(self.hass)
-        entity_entry = registry.async_get(atv_entity)
-        if not entity_entry or not entity_entry.config_entry_id:
-            return None
-
-        config_entry = self.hass.config_entries.async_get_entry(entity_entry.config_entry_id)
-        if config_entry:
-            return config_entry.data.get("host")
-        return None
-
     async def async_press(self) -> None:
         """Attempt ADB connection. The Shield will show a pairing prompt."""
-        host = self._resolve_host()
+        # t41: the entry's own single address — never derived from another
+        # integration's entity.
+        host = entry_host(self._entry)
         port = self._entry.options.get(CONF_ADB_PORT, DEFAULT_ADB_PORT)
 
         if not host:
@@ -85,7 +66,11 @@ class NvidiaShieldPairAdbButton(ButtonEntity):
             ensure_adb_key, self.hass.config.config_dir
         )
 
-        _LOGGER.info("Attempting ADB pairing with %s:%d — approve the prompt on the Shield", host, port)
+        _LOGGER.info(
+            "Attempting ADB pairing with %s:%d — approve the prompt on the Shield",
+            host,
+            port,
+        )
 
         poller = AdbMediaSessionPoller(host, port, key_path)
         if await poller.connect():

custom_components/nvidia_shield/const.py

@@ -12,6 +12,16 @@ from .ha_adb_common.const import (  # noqa: F401
 
 DOMAIN = "nvidia_shield"
 
+# t41: the INTEGRATION's address field — one Shield IP for the whole stack
+# (protocol + ADB). The two keys below it are LEGACY: a YAML seed may still
+# carry them and the v3 entry migration maps them onto CONF_HOST, but no
+# runtime code reads them.
+CONF_HOST = "host"
+CONF_ADB_HOST = "adb_host"
+CONF_PROTOCOL_HOST = "protocol_host"
+
+# t41 legacy: dropped from entries by the v3 migration (the androidtv entity
+# path it configured is gone), never read at runtime.
 CONF_ANDROIDTV_ENTITY = "androidtv_entity"
 CONF_JELLYFIN_ENTITY = "jellyfin_entity"
 CONF_RECEIVER_ENTITY = "receiver_entity"
@@ -19,20 +29,249 @@ CONF_RECEIVER_INPUT = "receiver_input"
 CONF_POWER_ENTITY = "power_entity"
 CONF_ADB_ENABLED = "adb_enabled"
 CONF_ADB_STORE_APP_INFO = "adb_store_app_info"
-CONF_ADB_HOST = "adb_host"
 CONF_ADB_PORT = "adb_port"
 
+# Remote-protocol transport (androidtvremote2) — Phase 2
+CONF_PROTOCOL_ENABLED = "protocol_enabled"
+CONF_PAIRING_CODE = "pairing_code"
+# t33 F-B: the "continue without pairing" escape offered on BOTH pairing
+# steps — the entry still finishes (passive mode) instead of stranding the
+# user on a form with no way forward.
+CONF_SKIP_PAIRING = "skip_pairing"
+DEFAULT_PROTOCOL_API_PORT = 6466
+DEFAULT_PROTOCOL_PAIR_PORT = 6467
+
 ADB_POLL_INTERVAL = 10  # seconds
 ADB_RETRY_INTERVAL = 300  # seconds before retrying a failed ADB connection
 DEFAULT_ADB_PORT = 5555
 
+# Persistent-connection manager timing (Phase 1, docs/MVP_PLAN.md §2):
+# watchdog reconnects with exponential backoff + jitter; ADB-derived store
+# fields expire (B5) instead of clinging to stale values.
+ADB_RECONNECT_BACKOFF_START = 5   # seconds before the first reconnect retry
+ADB_RECONNECT_BACKOFF_CAP = 300   # seconds; backoff never sleeps longer
+ADB_RECONNECT_JITTER = 0.25       # ±25 % randomization against reconnect storms
+STATE_STORE_TTL = 60              # ADB-sourced fields older than this are stale
+
 DEFAULT_NAME = "Nvidia Shield"
 
+# Config-entry schema version (t41): v1 → v2 added the remote-protocol fields,
+# v2 → v3 collapsed the two address fields into CONF_HOST and dropped the
+# androidtv-entity key. One constant so the flow and the migration cannot drift.
+ENTRY_VERSION = 3
+
 # Emotiva DAG attribute we read to get available inputs
 ATTR_MEDIA_DAG_INPUT_MAP = "media_dag_input_map"
 
-# Known Jellyfin app package IDs
+# Known Jellyfin app package IDs (used to route Jellyfin-family clients
+# — including Wholphin, a Jellyfin client — to the rich-metadata path).
 JELLYFIN_APP_IDS = [
     "org.jellyfin.androidtv",
     "org.jellyfin.mobile",
+    "com.github.damontecres.wholphin",
 ]
+
+# Remote-protocol key names (RemoteKeyCode enum in remotemessage.proto).
+# HA service kind → protocol keycode string.
+PROTOCOL_MEDIA_KEYS = {
+    "media_play": "KEYCODE_MEDIA_PLAY",
+    "media_pause": "KEYCODE_MEDIA_PAUSE",
+    "media_stop": "KEYCODE_MEDIA_STOP",
+    "media_next_track": "KEYCODE_MEDIA_NEXT",
+    "media_previous_track": "KEYCODE_MEDIA_PREVIOUS",
+}
+PROTOCOL_VOLUME_KEYS = {
+    "volume_up": "KEYCODE_VOLUME_UP",
+    "volume_down": "KEYCODE_VOLUME_DOWN",
+    "volume_mute": "KEYCODE_VOLUME_MUTE",
+}
+PROTOCOL_REMOTE_KEYS = {
+    **PROTOCOL_VOLUME_KEYS,
+    "play": "KEYCODE_MEDIA_PLAY",
+    "pause": "KEYCODE_MEDIA_PAUSE",
+    "stop": "KEYCODE_MEDIA_STOP",
+    "up": "KEYCODE_DPAD_UP",
+    "down": "KEYCODE_DPAD_DOWN",
+    "left": "KEYCODE_DPAD_LEFT",
+    "right": "KEYCODE_DPAD_RIGHT",
+    "enter": "KEYCODE_DPAD_CENTER",
+    "home": "KEYCODE_HOME",
+    "back": "KEYCODE_BACK",
+    "menu": "KEYCODE_MENU",
+    "search": "KEYCODE_SEARCH",
+    "power": "KEYCODE_POWER",
+    "channel_up": "KEYCODE_CHANNEL_UP",
+    "channel_down": "KEYCODE_CHANNEL_DOWN",
+}
+
+# §7 channel selection: digits only, ~0.1 s apart, no ENTER by default
+# (replicates HA core androidtv_remote's verified behavior).
+# Zeroconf discovery (Phase 4): the Android TV remote service type.
+ZEROCONF_SERVICE_TYPE = "_androidtvremote2._tcp.local."
+
+# P4-1 apps name/icon map (options flow editor): package → friendly name,
+# consumed by app_name after the androidtv-entity and protocol-push tiers.
+CONF_APP_NAME_MAP = "app_name_map"
+
+# P5-2: optional icon column (package|icon) — package → icon URL, feeding
+# entity_picture when no Jellyfin session picture is live.
+CONF_APP_ICON_MAP = "app_icon_map"
+
+# P5-1: device manifest label cache TTL (long — labels change with app
+# updates, not per poll).
+APP_LABEL_TTL = 24 * 3600
+
+# t57 UNIT 0: exit marker appended to the label dump so a FAILED fetch can be
+# told from a package that genuinely has no label. ``adb shell`` output ending
+# in this marker means the command ran; an empty answer still carries it, and
+# a transport that never delivered output does not. The value is arbitrary but
+# unlikely to collide with a manifest line.
+APP_LABEL_EXIT_MARKER = "__NSH_EXIT:"
+
+# P4-2a adb_command service: rawADB shell on this entry — OFF by default
+# (same security posture as the core androidtv integration).
+CONF_ADB_COMMAND_ENABLED = "adb_command_enabled"
+SERVICE_ADB_COMMAND = "adb_command"
+
+# P5-3 (C-STREAM): live events push — the streaming_shell logcat consumer
+# (foreground AppState fast-path). Default OFF; the user flips it on and
+# reports stability on their device.
+CONF_LOGCAT_EVENTS = "logcat_events"
+
+# P5-3: duplicate START for the same package inside this window is not
+# re-stamped (repeat suppression).
+LOGCAT_SUPPRESS_WINDOW = 15.0
+
+# P4-2c BrowseMedia app directory fallback when the options map is empty
+# (curated; the packages are the plan's reference apps).
+DEFAULT_APP_DIRECTORY = {
+    "ar.tvplayer.tv": "TiviMate",
+    "com.github.damontecres.wholphin": "Wholphin",
+    "com.netflix.ninja": "Netflix",
+    "com.google.android.youtube.tv": "YouTube",
+}
+
+# t57: best-effort icon per discovered app. `pm dump` does NOT expose the
+# app's icon resource (an extracted APK's icon is a bitmap only its own code
+# can resolve, and `dumpsys package` prints no drawable reference), so a device
+# icon is not obtainable over plain shell. These MDI names are therefore a
+# HEURISTIC: a curated package -> MDI mapping with a generic fallback, honest
+# about being a guess. The user's own `app_icon_map` (a picture URL or camera
+# entity, see CONF_APP_ICON_MAP) always outranks it for entity_picture.
+APP_ICON_FALLBACKS = {
+    "ar.tvplayer.tv": "mdi:television-classic",
+    "com.github.damontecres.wholphin": "mdi:jellyfish",
+    "com.netflix.ninja": "mdi:netflix",
+    "com.google.android.youtube.tv": "mdi:youtube-tv",
+    "com.google.android.tvlauncher": "mdi:view-dashboard",
+    "org.xbmc.kodi": "mdi:kodi",
+    "com.plexapp.android": "mdi:plex",
+    "com.amazon.amazonvideo.livingroom": "mdi:amazon",
+    "com.disney.disneyplus": "mdi:movie-open",
+    "com.spotify.tv.android": "mdi:spotify",
+    "com.google.android.apps.youtube.music": "mdi:music",
+    "com.valvesoftware.steamlink": "mdi:gamepad-variant",
+    "com.spotify.music": "mdi:spotify",
+}
+#: The fallback for an app this map has never heard of.
+APP_ICON_GENERIC = "mdi:television"
+
+# t57: installed-app discovery. The package list changes only when the user
+# installs or uninstalls something, so a long TTL is right; refreshing is
+# explicit (the options page and the app-list sensor ask for it) rather than a
+# per-poll cost.
+APP_LIST_TTL = 6 * 3600
+#: `pm dump` sweeps for labels run in a small burst — enough to finish a
+#: typical Shield quickly, few enough that the label fetches never queue
+#: behind each other on one socket or stall the watchdog.
+APP_SWEEP_CONCURRENCY = 4
+#: Spacing between the fetches of one sweep, per worker. Keeps the burst a
+#: trickle on the one socket the watchdog uses, while ~40 apps still finish in
+#: a few seconds instead of a few minutes.
+APP_SWEEP_SPACING = 0.05
+
+CHANNEL_DIGIT_DELAY = 0.1
+CONF_CHANNEL_DIGIT_DELAY = "channel_digit_delay"
+CONF_CHANNEL_SEND_ENTER = "channel_send_enter"
+
+# Verified on-device package names (docs/RESEARCH_SHIELD.md): TiviMate does
+# not publish a MediaSession on Shield Android 11 — it is the headline
+# Phase-3 fallback app.
+TIVIMATE_PACKAGE = "ar.tvplayer.tv"
+
+# Packages to ignore when parsing foreground/audio-playback identities
+SYSTEM_MEDIA_PACKAGES = [
+    "com.google.android.apps.mediashell",  # Chromecast receiver process
+    "com.android.systemui",
+    "com.android.tv.settings",
+    "com.nvidia.diagtools",
+]
+
+
+# t44: per-command script overrides — the escape hatch for hardware this
+# integration deliberately does not drive itself (a speaker switch that owns the
+# volume, an AVR input, a mute that has to hit two devices). One script per
+# command: when one is configured, that command calls the script INSTEAD of the
+# native protocol/ADB path, and with none configured nothing changes at all.
+CONF_COMMAND_SCRIPTS = "command_scripts"
+SCRIPT_COMMANDS = (
+    "turn_on",
+    "turn_off",
+    "volume_up",
+    "volume_down",
+    "volume_set",
+    "volume_mute",
+    "select_source",
+)
+#: Options-flow field name per command: ``script_turn_on``, ``script_volume_set``…
+SCRIPT_FIELD_PREFIX = "script_"
+#: Variables a command hands its script (HA script variables). volume_mute passes
+#: whether it is muting or unmuting — a script cannot tell those apart otherwise.
+SCRIPT_VAR_LEVEL = "level"
+SCRIPT_VAR_APP_NAME = "app_name"
+SCRIPT_VAR_MUTED = "is_volume_muted"
+
+
+def command_scripts(options) -> dict[str, str]:
+    """The script configured per command, normalized (t44).
+
+    The ONE place the stored option's shape is read: the options flow, the media
+    player and the remote entity all go through it. Options round-trip through HA
+    storage and can be hand-edited, so a value that is not a non-empty string for a
+    known command is dropped rather than handed to the service layer.
+    """
+    raw = (options or {}).get(CONF_COMMAND_SCRIPTS)
+    if not isinstance(raw, dict):
+        return {}
+    scripts: dict[str, str] = {}
+    for command in SCRIPT_COMMANDS:
+        script = raw.get(command)
+        if isinstance(script, str) and script.strip():
+            scripts[command] = script.strip()
+    return scripts
+
+
+# t47: ONE optional script for the remote entity's send_command. It replaces the
+# whole key path (repeats, hold, delays included) rather than per-key overrides,
+# because a remote command is a sequence: an IR bridge, a macro or a second device
+# needs the call, not individual keys.
+CONF_REMOTE_COMMAND_SCRIPT = "remote_command_script"
+#: Variables remote.send_command hands its script — the names are the service's own
+#: parameter names, and they are documented in the README and pinned in tests.
+SCRIPT_VAR_COMMAND = "command"
+SCRIPT_VAR_NUM_REPEATS = "num_repeats"
+SCRIPT_VAR_DELAY_SECS = "delay_secs"
+SCRIPT_VAR_HOLD_SECS = "hold_secs"
+
+
+def remote_command_script(options) -> str | None:
+    """The script configured for remote.send_command, or None (t47).
+
+    Same defensive read as ``command_scripts``: options round-trip through HA
+    storage and can be hand-edited, so anything that is not a non-empty string is
+    "not configured" rather than a service call to nowhere.
+    """
+    script = (options or {}).get(CONF_REMOTE_COMMAND_SCRIPT)
+    if isinstance(script, str) and script.strip():
+        return script.strip()
+    return None

custom_components/nvidia_shield/diagnostics.py

@@ -0,0 +1,108 @@
+"""Entry diagnostics for Nvidia Shield (P4-2b, t21 F1 platform-module move).
+
+HA discovers ``async_get_config_entry_diagnostics`` through the integration's
+``diagnostics`` platform module — a placement inside media_player.py never
+serves in a real install (t20 finding F1).
+
+The payload: redacted entry config (data + options), the manager's StateStore
+snapshot via the public ``store_snapshot`` accessor, and both transports'
+health. Cert paths are kept readable; key material / pairing secrets never
+exist in stored state, and any key carrying a secret-shaped name is redacted
+defensively.
+"""
+
+import time
+from dataclasses import asdict, is_dataclass
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.redact import async_redact_data
+
+from .connection import ShieldConnectionManager
+from .media_player import entity_available
+
+_REDACT_KEY_MARKERS = ("pairing", "pin", "secret", "password", "token", "key_material")
+_REDACTED = "**REDACTED**"
+
+# G14: the documented explicit redaction field list — the audit calls out
+# config fields like the hosts; pairing/key-shaped fields are masked by
+# async_redact_data and the marker scan adds a second layer.
+_TO_REDACT = {
+    "pairing_code",
+    "adb_pairing_code",
+    "protocol_pairing_code",
+    "serial_number",
+    "uuid",
+    "adb_host",
+    "protocol_host",
+    "host",
+}
+
+
+def _redact(obj):
+    """Marker-based defensive pass (kept behind the async_redact_data helper)."""
+    """Redact sensitive keys from a JSON-ish diagnostics payload."""
+    if isinstance(obj, dict):
+        return {
+            key: (
+                _REDACTED
+                if any(m in str(key).lower() for m in _REDACT_KEY_MARKERS)
+                else _redact(value)
+            )
+            for key, value in obj.items()
+        }
+    if isinstance(obj, list):
+        return [_redact(item) for item in obj]
+    return obj
+
+
+def _store_snapshot(manager) -> dict[str, dict]:
+    """TTL-stamped store snapshot; dataclass values expand to dicts."""
+    snapshot = {}
+    for name, (stamp, value) in manager.store.values_stamped().items():
+        if is_dataclass(value) and not isinstance(value, type):
+            value = asdict(value)
+        snapshot[name] = {"age": round(time.monotonic() - stamp, 3), "value": value}
+    return snapshot
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, entry: ConfigEntry
+) -> dict:
+    """Entry diagnostics: redacted config + store snapshot + transport health."""
+    manager = getattr(entry, "runtime_data", None)
+    payload: dict = {
+        "entry": {
+            "data": dict(getattr(entry, "data", {}) or {}),
+            "options": dict(getattr(entry, "options", {}) or {}),
+        },
+        "store": {},
+        "transport": {},
+    }
+    if isinstance(manager, ShieldConnectionManager):
+        payload["store"] = manager.store_snapshot()
+        payload["transport"] = {
+            # t40: the ladder's verdict, from the same helper the entities use,
+            # so a support dump answers "why is my entity unavailable?".
+            "entity_available": entity_available(manager),
+            "adb": {
+                "configured": manager.available,
+                "connected": manager.connected,
+                "awake": manager.awake,
+            },
+            "protocol": {
+                "active": manager.protocol_active,
+                "available": manager.is_available,
+                "is_on": manager.is_on,
+            },
+        }
+    # G14 (t30) + t37 D2: the documented helper is the primary redaction path
+    # with an explicit field list (the hosts included), and the marker scan
+    # above runs defensively after it. It is imported at MODULE scope from
+    # homeassistant.helpers.redact — the real module; the old
+    # `homeassistant.util.diagnostic` never existed, and the swallowed
+    # ImportError turned the whole pass into a silent no-op.
+    return _redact(async_redact_data(payload, _TO_REDACT))
+
+
+__all__ = ["async_get_config_entry_diagnostics"]

custom_components/nvidia_shield/ha_adb_common/__init__.py

@@ -1,6 +1,7 @@
 """Shared ADB utilities for Home Assistant custom integrations."""
 
-from .adb_client import AdbClientBase
+from .adb_client import AdbClientBase, parse_wakefulness
+from .app_label import parse_application_label
 from .const import (
     ATTR_MEDIA_DAG_JELLYFIN_ENTITY,
     ATTR_MEDIA_DAG_NOW_PLAYING,
@@ -9,9 +10,23 @@ from .const import (
     ATTR_MEDIA_DAG_ROLE,
     ATTR_MEDIA_DAG_RUNNING_APPS,
 )
+from .foreground import parse_foreground
+from .installed_apps import (
+    icon_for_package,
+    installed_packages,
+    is_launchable,
+    parse_active_launcher,
+    parse_package_list,
+)
 from .intent import PlaybackIntent
 from .keys import ensure_adb_key
-from .media_session import MediaSessionInfo, parse_all_media_sessions, parse_media_session
+from .logcat_events import foreground_from_logcat
+from .media_session import (
+    MediaSessionInfo,
+    parse_all_media_sessions,
+    parse_audio_playback,
+    parse_media_session,
+)
 from .running_apps import running_apps_from_sessions, running_apps_from_tasks
 
 __all__ = [
@@ -26,6 +41,16 @@ __all__ = [
     "PlaybackIntent",
     "ensure_adb_key",
     "parse_all_media_sessions",
+    "parse_application_label",
+    "parse_audio_playback",
+    "parse_foreground",
+    "foreground_from_logcat",
+    "icon_for_package",
+    "installed_packages",
+    "is_launchable",
+    "parse_active_launcher",
+    "parse_package_list",
+    "parse_wakefulness",
     "parse_media_session",
     "running_apps_from_sessions",
     "running_apps_from_tasks",

custom_components/nvidia_shield/ha_adb_common/adb_client.py

@@ -3,7 +3,9 @@
 Subclasses add device-specific polling (media sessions, wake state, etc.).
 """
 
+import contextlib
 import logging
+import re
 
 from .media_session import MediaSessionInfo, parse_all_media_sessions, parse_media_session
 
@@ -30,6 +32,33 @@ DEVICE_KEYCODES = {
 
 ALL_KEYCODES = {**MEDIA_KEYCODES, **DEVICE_KEYCODES}
 
+# Recognized non-awake mWakefulness= values (see Android PowerManagerInternal).
+# Anything else is "unknown" — never silently reported as awake or asleep.
+_WAKEFULNESS_ASLEEP_VALUES = {"Asleep", "Dozing", "Dozing-suspend"}
+
+
+def parse_wakefulness(text: str | None) -> bool | None:
+    """Parse `dumpsys power` output for the exact ``mWakefulness=`` value (R5).
+
+    Exact-value parse, no substring matching: only the ``mWakefulness=``
+    assignment counts — ``mWakefulnessChanging=false`` and
+    ``mWakefulnessSetting=...`` are ignored. Unknown values (e.g. a future
+    firmware's ``mWakefulness=Dozing-ext``) return None so callers treat it
+    as "unknown", never as awake or asleep.
+    """
+    if not text:
+        return None
+    for line in text.splitlines():
+        match = re.search(r"(?<![A-Za-z])mWakefulness=([^\s,}]+)", line)
+        if match:
+            value = match.group(1)
+            if value == "Awake":
+                return True
+            if value in _WAKEFULNESS_ASLEEP_VALUES:
+                return False
+            return None
+    return None
+
 
 class AdbClientBase:
     """Base ADB client with connection management and common commands."""
@@ -43,12 +72,28 @@ class AdbClientBase:
 
         # Media session state
         self._last_info: MediaSessionInfo | None = None
+        self._last_dump: str | None = None
         self._all_sessions: list[MediaSessionInfo] = []
 
+
     @property
     def connected(self) -> bool:
         return self._connected
 
+    @property
+    def config(self) -> dict:
+        """Public connection config: {host, port, key_path} (t27 F-NEW3).
+
+        Replaces the private-attr reach-ins for secondary streams — callers
+        (the dedicated logcat stream) share the signer material without
+        touching the poller's socket or its private attributes.
+        """
+        return {
+            "host": self._host,
+            "port": self._port,
+            "key_path": self._key_path,
+        }
+
     @property
     def last_info(self) -> MediaSessionInfo | None:
         return self._last_info
@@ -60,6 +105,7 @@ class AdbClientBase:
     def clear_info(self) -> None:
         """Clear the cached media session info."""
         self._last_info = None
+        self._last_dump = None
         self._all_sessions = []
 
     async def connect(self) -> bool:
@@ -90,18 +136,15 @@ class AdbClientBase:
     async def disconnect(self) -> None:
         """Disconnect from the device."""
         if self._device:
-            try:
+            with contextlib.suppress(Exception):
                 await self._device.close()
-            except Exception:
-                pass
         self._device = None
         self._connected = False
 
     async def shell(self, cmd: str) -> str | None:
         """Run a shell command, reconnecting if needed."""
-        if not self._connected or not self._device:
-            if not await self.connect():
-                return None
+        if (not self._connected or not self._device) and not await self.connect():
+            return None
         try:
             return await self._device.shell(cmd)
         except Exception as err:
@@ -135,6 +178,24 @@ class AdbClientBase:
             return True
         return False
 
+    async def send_digit_keyevent(self, digit: str) -> bool:
+        """Send a channel digit via `input keyevent` (KEYCODE_0..9 = 7..16)."""
+        if not digit.isdigit() or len(digit) != 1:
+            _LOGGER.warning("Not a single digit: %s", digit)
+            return False
+        result = await self.shell(f"input keyevent {7 + int(digit)}")
+        if result is not None:
+            _LOGGER.debug("ADB digit keyevent %d (%s)", 7 + int(digit), digit)
+        return result is not None
+
+    async def send_enter_keyevent(self) -> bool:
+        """Send ENTER via `input keyevent` (KEYCODE_ENTER = 66) — the ENTER
+        fallback for the §7 channel sequence."""
+        result = await self.shell("input keyevent 66")
+        if result is not None:
+            _LOGGER.debug("ADB ENTER keyevent (66)")
+        return result is not None
+
     async def bring_to_foreground(self, package: str) -> bool:
         """Bring an app to the foreground using monkey command."""
         result = await self.shell(
@@ -145,27 +206,60 @@ class AdbClientBase:
         return result is not None
 
     async def is_awake(self) -> bool | None:
-        """Check if the device screen is on / awake via ADB."""
+        """Check if the device screen is on / awake via ADB.
+
+        Exact-value mWakefulness= parse (R5); None means "unknown".
+        """
         result = await self.shell("dumpsys power 2>/dev/null | grep mWakefulness")
-        if result:
-            return "Awake" in result
-        return None
+        return parse_wakefulness(result)
 
     # -- Media session polling --
 
     async def poll_media_sessions(
-        self, foreground_package: str | None = None, head_lines: int = 200
+        self, foreground_package: str | None = None, head_lines: int | None = 200
     ) -> MediaSessionInfo | None:
-        """Query media sessions. Stores all sessions and returns the best match."""
-        dump = await self.shell(
-            f"dumpsys media_session 2>/dev/null | head -{head_lines}"
-        )
+        """Query media sessions. Stores all sessions and returns the best match.
+
+        Args:
+            foreground_package: Prefer the session of the foreground app.
+            head_lines: Truncate the dump to N lines (the historical default
+                of 200). Pass None for the full dump — the ShieldConnection
+                manager does so, since the cut silently drops sessions below
+                it (plan blocker B4).
+        """
+        command = "dumpsys media_session 2>/dev/null"
+        if head_lines is not None:
+            command += f" | head -{head_lines}"
+        dump = await self.shell(command)
+        self._last_dump = dump if dump is not None else None
         if dump is None:
             return None
         self._all_sessions = parse_all_media_sessions(dump)
         self._last_info = parse_media_session(dump, foreground_package)
         return self._last_info
 
+    @property
+    def last_dump(self) -> str | None:
+        """Raw output of the last media-session query (or None if it failed).
+
+        Shared consumers (the ShieldConnectionManager) parse the "Audio
+        playback" section from this same dump — no extra round trip.
+        """
+        return self._last_dump
+
+    # -- Health check --
+
+    async def health_check(self) -> bool:
+        """Verify the connection is actually usable with a cheap shell round trip.
+
+        Returns True only when the device answers the trivial ``echo ok`` with
+        the expected body — a stronger signal than the ``connected`` flag,
+        which can lag behind reality (the watchdog uses this to fire a
+        reconnect instead of trusting a dead socket).
+        """
+        result = await self.shell("echo ok")
+        return result is not None and result.strip() == "ok"
+
     # -- Running apps (recent visible tasks) --
 
     async def poll_running_apps(self) -> list[dict]:
@@ -182,12 +276,11 @@ class AdbClientBase:
         if not result:
             return []
 
-        import re
         apps = []
         seen = set()
 
         # System packages to exclude
-        _EXCLUDED = {
+        excluded = {
             "com.android.systemui",
             "com.android.tv.settings",
             "com.nvidia.diagtools",
@@ -206,7 +299,7 @@ class AdbClientBase:
                     match = re.search(r"I=(\S+)/", stripped)
                 if match:
                     pkg = match.group(1)
-                    if pkg not in seen and pkg not in _EXCLUDED and not pkg.startswith("."):
+                    if pkg not in seen and pkg not in excluded and not pkg.startswith("."):
                         seen.add(pkg)
                         apps.append({"package": pkg})
 

custom_components/nvidia_shield/ha_adb_common/app_label.py

@@ -0,0 +1,30 @@
+"""App friendly-name resolution from the package manifest (P5-1).
+
+Parses `pm dump <package>` output for the ``application-label`` line — the
+default-locale variant; localized suffixed variants
+(``application-label-<lang>:``) are skipped, and multi-label blocks across
+locales are tolerated (first default-locale label wins), mirroring the
+tolerant pattern of the androidtv-adb core helper.
+"""
+
+import re
+
+_APPLICATION_LABEL_RE = re.compile(
+    r"application-label(?:-[A-Za-z_-]+)?:\s*'([^']*)'"
+    r'|application-label(?:-[A-Za-z_-]+)?:\s*"([^"]*)"'
+)
+
+
+def parse_application_label(dump: str) -> str | None:
+    """The package's default-locale application label, or None.
+
+    Returns None on empty/failed dumps too — callers fall through to the
+    next name tier.
+    """
+    if not dump:
+        return None
+    for match in _APPLICATION_LABEL_RE.finditer(dump):
+        label = (match.group(1) or match.group(2) or "").strip()
+        if label and label not in ("null", ""):
+            return label
+    return None

custom_components/nvidia_shield/ha_adb_common/foreground.py

@@ -0,0 +1,91 @@
+"""Foreground-app parsing from `dumpsys activity activities` (RESEARCH_SHIELD R4).
+
+Primary pattern: ``mResumedActivity: ActivityRecord{... u0 <pkg>/<activity> ...}``
+(Shield Android 11). ``topResumedActivity`` (newer firmware) is the fallback,
+checked only after the primary — per R4 finding 1. ``dumpsys window`` focus is
+NOT parsed (R4 finding 2: the first ``mCurrentFocus`` can be literally null).
+
+Multi-line ActivityRecord wraps are handled by joining the block until the
+record closes or a state line arrives (R4 finding 3: match on the joined
+block, not per-line). ``ResumedActivity``/``Resumed`` duplicates are tolerated.
+"""
+
+import re
+
+_RESUMED_MARKERS = (
+    ("mResumedActivity", "mResumedActivity:"),
+    ("topResumedActivity", "topResumedActivity:"),
+    ("ResumedActivity", "ResumedActivity:"),
+    ("Resumed", "Resumed:"),
+)
+
+# `u0 <pkg>/<activity>` — the userId prefix tolerates u0..uN; the package is
+# anything up to the first `/` (or closing brace when the activity is bare).
+_PACKAGE_RE = re.compile(r"u\d+\s+(\S+?)\s*/|u\d+\s+(\S+?)\s*}")
+
+
+def _marker_kind(stripped: str) -> str | None:
+    for kind, marker in _RESUMED_MARKERS:
+        if stripped.startswith(marker):
+            return kind
+    return None
+
+
+def _resumed_blocks(dump: str) -> list[tuple[str, str]]:
+    """(kind, joined-text) blocks for each resumed-activity line, in order."""
+    blocks: list[tuple[str, str]] = []
+    kind: str | None = None
+    buf = ""
+    for raw in dump.split("\n"):
+        stripped = raw.strip()
+        marker = _marker_kind(stripped)
+        if marker is not None:
+            if buf:
+                blocks.append((kind, buf))
+            kind, buf = marker, stripped
+            continue
+        if kind is None:
+            continue
+        # Continuation of a wrapped ActivityRecord: join until the record
+        # closes (brace) or the state line completes the block (R4 finding 3).
+        buf += " " + stripped
+        if "}" in stripped or "state=" in stripped:
+            blocks.append((kind, buf))
+            kind, buf = None, ""
+    if buf:
+        blocks.append((kind, buf))
+    return blocks
+
+
+def _extract_package(text: str) -> str | None:
+    match = _PACKAGE_RE.search(text)
+    if match is None:
+        return None
+    package = match.group(1) or match.group(2)
+    if not package or package in ("null", "Window{"):
+        return None
+    return package
+
+
+def parse_foreground(dump: str) -> str | None:
+    """Foreground package: mResumedActivity primary, topResumed fallback.
+
+    Returns None when neither pattern matches (e.g. pre-parse wrappers) —
+    callers must not fall back to window-focus parsing (R4 finding 2).
+    """
+    if not dump:
+        return None
+    blocks = _resumed_blocks(dump)
+    for kind, text in blocks:
+        if kind == "topResumedActivity":
+            continue
+        package = _extract_package(text)
+        if package:
+            return package
+    for kind, text in blocks:
+        if kind != "topResumedActivity":
+            continue
+        package = _extract_package(text)
+        if package:
+            return package
+    return None

custom_components/nvidia_shield/ha_adb_common/installed_apps.py

@@ -0,0 +1,139 @@
+"""Discover the apps actually installed on the Shield (t57).
+
+The live complaint ("it doesn't find all the apps") came from the curated
+fallback list: only four packages were ever offered, so a user with Wholphin,
+SmartTube, Kodi, Plex or anything else saw nothing. The device knows its own
+apps, so this module asks it.
+
+The commands (both plain `pm`, available on Shield Experience 9 / Android 11
+with no extra permission beyond the ADB pairing this integration already has):
+
+* ``pm list packages -3``      — third-party (user-installed) packages, one
+  ``package:<id>`` line each. This is what the live complaint is about: an app
+  the user installed is a ``-3`` package.
+* ``cmd package resolve-activity --brief -c android.intent.category.HOME``
+  — the ACTIVE launcher (``com.google.android.tvlauncher/....MainActivity``).
+  A launcher is a system app, so it is not in ``-3``, yet it is exactly the app
+  a user sees and may want to name or launch — so it is added explicitly.
+
+System apps are otherwise NOT enumerated: the Shield ships a few hundred of
+them and they are not launchable apps a media-player source list wants. The
+one system app that matters (the launcher) is resolved, not filtered.
+
+Labels come from the existing ``pm dump`` + ``parse_application_label`` path and
+its 24 h cache (``ShieldConnectionManager.app_label``), so discovery adds no
+second naming mechanism.
+
+Icons are best effort and explicitly heuristic — see ``icon_for_package``.
+
+MARK — documented, not observed (t62 nit c): the output SHAPES this module parses
+— ``pm list packages -3`` printing ``package:<id>`` lines, and
+``resolve-activity --brief`` printing ``package/activity`` — are Android's
+documentation, not a captured run. No real Shield was available when discovery was
+written (t57), and no fixture in this repo is a device capture of either command
+(``tests/fixtures`` holds activity, wakefulness and media-session dumps instead), so
+everything below is exercised from the hand-built fixtures in
+``tests/test_installed_apps.py``. That is why the parsers are deliberately tolerant:
+an output shape we have never seen degrades to an empty list rather than to a wrong
+one. Same mark as the state=6 buffering inference — the dataclass note in
+``ha_adb_common/media_session.py``, echoed in ``media_player.py`` — and as the
+discovery section of ``connection.py``.
+"""
+
+from __future__ import annotations
+
+import re
+
+#: One `pm list packages` line: ``package:com.example.app``.
+_PACKAGE_LINE_RE = re.compile(r"^package:(?P<package>[\w.]+)\s*$", re.MULTILINE)
+
+#: `resolve-activity --brief` prints ``package/activity`` on the last line,
+#: possibly preceded by the (verbose) intent header.
+_COMPONENT_RE = re.compile(r"^(?P<package>[\w.]+)/[\w.$]+$", re.MULTILINE)
+
+#: Activity components that belong to a launcher but are not what the user
+#: opens: settings/hidden entry points a HOME resolution can land on.
+_LAUNCHER_NOISE = ("com.android.tv.settings",)
+
+
+def parse_package_list(output: str | None) -> list[str]:
+    """The package ids in a ``pm list packages`` dump, in device order.
+
+    Tolerant on purpose: the documented output (see the module MARK — the shape is
+    Android's documentation, not a capture) has one ``package:<id>`` per line, and a
+    shell that prepends noise (adb banners, warnings) must not lose the list.
+    Duplicates are collapsed, order preserved.
+    """
+    if not output:
+        return []
+    seen: set[str] = set()
+    packages: list[str] = []
+    for match in _PACKAGE_LINE_RE.finditer(output):
+        package = match.group("package")
+        if package not in seen:
+            seen.add(package)
+            packages.append(package)
+    return packages
+
+
+def parse_active_launcher(output: str | None) -> str | None:
+    """The active HOME package from ``cmd package resolve-activity --brief``.
+
+    Android prints a verbose intent header and then a single
+    ``package/activity`` line; only the last component-looking line is the
+    answer. Returns None when nothing resolved (a device with no launcher, or a
+    command that produced no output) — the caller treats that as "no launcher
+    to add" rather than as a failure.
+    """
+    if not output:
+        return None
+    packages = _COMPONENT_RE.findall(output)
+    for package in reversed(packages):
+        if package not in _LAUNCHER_NOISE:
+            return package
+    return None
+
+
+def installed_packages(user_output: str | None, launcher_output: str | None) -> list[str]:
+    """The discovered package ids: user apps first, then the active launcher.
+
+    The launcher goes last so a source list built from this keeps the user's own
+    apps at the top, and it is de-duplicated because a launcher CAN be a
+    third-party package (a replacement TV launcher installed from the store).
+    """
+    packages = parse_package_list(user_output)
+    launcher = parse_active_launcher(launcher_output)
+    if launcher and launcher not in packages:
+        packages.append(launcher)
+    return packages
+
+
+def icon_for_package(package: str, curated: dict[str, str] | None = None,
+                     generic: str = "mdi:television") -> str:
+    """A best-effort MDI icon for a package, never a non-string (t57).
+
+    HEURISTIC, and labelled as such: the icon is looked up in a curated
+    package -> MDI map, and anything unknown gets the generic fallback. There is
+    no device query behind this because there cannot be one — ``pm dump`` does
+    not print the app's icon resource, and resolving an extracted APK's bitmap
+    would need code the app itself runs. The user's own icon column (a picture
+    URL or a ``camera.*`` entity) is what ``entity_picture`` consumes, and it
+    outranks this.
+
+    Returns a string in every case: the UI is never handed None or a dict.
+    """
+    if not package:
+        return generic
+    table = curated if curated is not None else {}
+    return table.get(package) or generic
+
+
+def is_launchable(package: str) -> bool:
+    """Cheap sanity filter for a package id.
+
+    Not a real Android query: a package id is dotted and non-empty. The filter
+    exists so a malformed line cannot become a table row or a source entry.
+    """
+    return bool(package) and "." in package and all(
+        part.isalnum() or part in ("_", "-") for part in package.split(".")
+    )

custom_components/nvidia_shield/ha_adb_common/intent.py

@@ -13,20 +13,34 @@ class PlaybackIntent:
 
     Attributes:
         target_state: The MediaPlayerState we expect after the command.
-        command: The service/command name (for retries and logging).
+        command: The command/service name (for retries and logging).
         created_at: Monotonic timestamp when the intent was created.
         prior_state: The source state before the intent (for detecting external overrides).
         retry_count: Number of retries attempted so far.
+        via_adb: True when the command was successfully served by the ADB
+            keyevent path — the retry must then go over ADB too, not back to
+            the remote that did not serve it.
+        adb_command: The ADB keycode command name matching the intent
+            (play/pause/stop/next/previous); set together with via_adb.
+        via_protocol: True when the command was served by the remote-protocol
+            key push (Phase 2) — the retry then goes over the protocol key
+            again instead of the other transports.
+        protocol_key: The protocol keycode string served with via_protocol.
     """
-
     target_state: str  # MediaPlayerState value (e.g. "playing", "paused")
     command: str
     created_at: float
     prior_state: str | None = None
     retry_count: int = 0
+    via_adb: bool = False
+    adb_command: str | None = None
+    via_protocol: bool = False
+    protocol_key: str | None = None
 
     @classmethod
-    def create(cls, target_state: str, command: str, prior_state: str | None = None) -> "PlaybackIntent":
+    def create(
+        cls, target_state: str, command: str, prior_state: str | None = None
+    ) -> "PlaybackIntent":
         return cls(
             target_state=target_state,
             command=command,
@@ -45,4 +59,6 @@ class PlaybackIntent:
             "command": self.command,
             "retries": self.retry_count,
             "age_s": self.age_seconds,
+            "via_adb": self.via_adb,
+            "adb_command": self.adb_command,
         }

custom_components/nvidia_shield/ha_adb_common/logcat_events.py

@@ -0,0 +1,79 @@
+"""Live events push (P5-3 / C-STREAM): logcat foreground trigger.
+
+Parses Android logcat's ActivityTaskManager ``START`` records and extracts
+the ``cmp=package`` part so the connection manager can stamp the foreground
+AppState instantly (sub-heartbeat latency). Logcat carries lifecycle only —
+no PlaybackState — so the hybrid split (ADB stays the playback/scene state
+source) is untouched: the stream never reads playback state.
+"""
+
+import re
+
+_LOG_RECORD_RE = re.compile(r"^\d{2}-\d{2}\s+\d{2}:\d{2}:\d{2}\.\d+")
+_CMP_RE = re.compile(r"cmp=([\w.]+)(?:/[^\s,}]+)?")
+_START_HINT_RE = re.compile(r"ActivityTaskManager:.*?START\b")
+
+
+def start_records(lines: list[str]) -> list[str]:
+    """Split raw logcat lines into START-record buffers (wrapped lines joined).
+
+    A record opens at a line that matches a log timestamp and mentions
+    ActivityTaskManager + START; subsequent lines that do NOT look like a
+    fresh log record are treated as continuations (the intent JSON can wrap
+    across lines). Anything else closes/open the next record.
+    """
+    records: list[str] = []
+    current: list[str] = []
+    for line in lines:
+        if _LOG_RECORD_RE.match(line) and _START_HINT_RE.search(line):
+            if current:
+                records.append("\n".join(current))
+            current = [line]
+        elif current and not _LOG_RECORD_RE.match(line):
+            current.append(line)  # wrapped intent text
+        else:
+            if current:
+                records.append("\n".join(current))
+            current = []
+    if current:
+        records.append("\n".join(current))
+    return records
+
+
+def foreground_from_logcat(lines: list[str]) -> str | None:
+    """The foreground package from the LAST valid START record, or None.
+
+    Non-START lines are ignored entirely; records whose intent carries no
+    ``cmp=`` (e.g. service starts) yield nothing; a explicit ``null`` cmp
+    is skipped too. Multi-user prefixes (``START u0``/``u10``...) are
+    tolerated — the user prefix is never part of the cmp value.
+    """
+    package: str | None = None
+    for record in start_records(lines):
+        match = _CMP_RE.search(record)
+        if not match:
+            continue
+        candidate = match.group(1)
+        if candidate and candidate != "null":
+            package = candidate  # last valid START wins
+    return package
+
+
+def foreground_packages(lines: list[str]) -> list[str]:
+    """Every distinct valid START package in order (test seam)."""
+    seen: list[str] = []
+    for record in start_records(lines):
+        match = _CMP_RE.search(record)
+        if not match:
+            continue
+        candidate = match.group(1)
+        if candidate and candidate != "null" and candidate not in seen:
+            seen.append(candidate)
+    return seen
+
+
+__all__ = [
+    "foreground_from_logcat",
+    "foreground_packages",
+    "start_records",
+]

custom_components/nvidia_shield/ha_adb_common/media_session.py

@@ -4,12 +4,28 @@ Parses `dumpsys media_session` output from ADB to extract now-playing
 information from any app using Android's MediaSession API.
 """
 
+import re
 from dataclasses import dataclass
 
 
 @dataclass
 class MediaSessionInfo:
-    """Parsed media session data from Android."""
+    """Parsed media session data from Android.
+
+    Playback position fields come from the session's PlaybackState line:
+    ``position`` is the playback offset in ms as of ``updated`` — which is a
+    **device uptime-ms** timestamp (verified on Shield Android 11, R9), not a
+    wallclock value. Use :meth:`position_at_uptime` with the device's current
+    uptime to extrapolate the live position.
+
+    ``playing``/``paused``/``buffering`` are independent flags mapped from the
+    Android PlaybackState integer: 2 = paused, 3 = playing, 6 = buffering
+    (t55). 6 is the stock-Android buffering value and the mapping is INFERRED
+    from the ``state=PlaybackState {state=N, ...}`` line shape, not from a
+    captured Shield dump: no fixture in this repo contains state=6, and no
+    real device was available. Nothing here is vendor-specific either way —
+    every integer is read straight out of the dump.
+    """
 
     title: str | None = None
     artist: str | None = None
@@ -17,13 +33,65 @@ class MediaSessionInfo:
     package: str | None = None
     playing: bool = False
     paused: bool = False
+    buffering: bool = False
+    position: float | None = None
+    speed: float | None = None
+    updated: int | None = None
+
+    def position_at_uptime(self, now_uptime_ms: float) -> float | None:
+        """Extrapolate the live playback position at device uptime ``now_uptime_ms``.
+
+        Mirrors HA core's convention: ``position + (now - updated) * speed``.
+        Returns None when the session carries no position sample.
+        """
+        if self.position is None or self.updated is None:
+            return None
+        speed = self.speed if self.speed is not None else 1.0
+        return self.position + (now_uptime_ms - self.updated) * speed
+
+
+_PLAYBACK_STATE_RE = re.compile(r"PlaybackState\s*\{([^}]*)\}")
+
+
+def _parse_playback_state(content: str) -> dict[str, str]:
+    """Parse the ``key=value`` pairs inside a PlaybackState block.
+
+    Splitting on ", " (rather than searching for ``position=`` anywhere in
+    the line) keeps the ``buffered position`` field from being mistaken for
+    the real ``position``.
+    """
+    fields: dict[str, str] = {}
+    for part in content.split(", "):
+        key, _, value = part.partition("=")
+        if value:
+            fields[key.strip()] = value.strip()
+    return fields
+
+
+def _parse_float(value: str | None) -> float | None:
+    if value is None:
+        return None
+    try:
+        return float(value)
+    except ValueError:
+        return None
+
+
+def _parse_int(value: str | None) -> int | None:
+    if value is None:
+        return None
+    try:
+        return int(value)
+    except ValueError:
+        return None
 
 
 def parse_all_media_sessions(dump: str) -> list[MediaSessionInfo]:
     """Parse `dumpsys media_session` output for ALL active media sessions.
 
     Returns a list of every active session that has metadata or a known
-    playback state, sorted: playing first, then paused, then others.
+    playback state, sorted: playing first, then buffering, then paused, then
+    others (t55).
     """
     if not dump:
         return []
@@ -31,7 +99,11 @@ def parse_all_media_sessions(dump: str) -> list[MediaSessionInfo]:
     sessions: list[MediaSessionInfo] = []
     current_pkg: str | None = None
     in_active = False
-    current_state = 0  # 0=unknown, 2=paused, 3=playing
+    # Android PlaybackState: 0=unknown, 2=paused, 3=playing, 6=buffering
+    current_state = 0
+    current_position: float | None = None
+    current_speed: float | None = None
+    current_updated: int | None = None
     current_meta: MediaSessionInfo | None = None
 
     for line in dump.split("\n"):
@@ -47,16 +119,25 @@ def parse_all_media_sessions(dump: str) -> list[MediaSessionInfo]:
                 current_pkg = pkg[1].strip()
                 in_active = False
                 current_state = 0
+                current_position = None
+                current_speed = None
+                current_updated = None
                 current_meta = None
 
         if "active=true" in stripped:
             in_active = True
 
         if in_active and "state=PlaybackState" in stripped:
-            if "state=3" in stripped:
-                current_state = 3
-            elif "state=2" in stripped:
-                current_state = 2
+            match = _PLAYBACK_STATE_RE.search(stripped)
+            if match:
+                fields = _parse_playback_state(match.group(1))
+                try:
+                    current_state = int(fields.get("state", 0))
+                except ValueError:
+                    current_state = 0
+                current_position = _parse_float(fields.get("position"))
+                current_speed = _parse_float(fields.get("speed"))
+                current_updated = _parse_int(fields.get("updated"))
 
         if in_active and "metadata: size=" in stripped and "description=" in stripped:
             desc_start = stripped.find("description=")
@@ -68,7 +149,11 @@ def parse_all_media_sessions(dump: str) -> list[MediaSessionInfo]:
             info = MediaSessionInfo()
             info.package = current_pkg
             info.playing = current_state == 3
+            info.buffering = current_state == 6
             info.paused = current_state == 2
+            info.position = current_position
+            info.speed = current_speed
+            info.updated = current_updated
 
             if len(parts) >= 1 and parts[0] not in ("null", ""):
                 info.title = parts[0]
@@ -85,18 +170,49 @@ def parse_all_media_sessions(dump: str) -> list[MediaSessionInfo]:
         current_meta.package = current_pkg
         sessions.append(current_meta)
 
-    # Sort: playing first, then paused, then others
+    # Sort: playing first, then buffering (mid-playback), then paused, then
+    # others — a buffering session outranks a paused one (t55).
     def sort_key(s: MediaSessionInfo) -> int:
         if s.playing:
             return 0
-        if s.paused:
+        if s.buffering:
             return 1
-        return 2
+        if s.paused:
+            return 2
+        return 3
 
     sessions.sort(key=sort_key)
     return sessions
 
 
+def parse_audio_playback(dump: str) -> list[str]:
+    """Parse the "Audio playback (lastly played comes first)" section.
+
+    Returns the package names that recently played audio, in the dump's own
+    order (most recently played first). This is a zero-cost hint from the same
+    ``dumpsys media_session`` call: an app shows up here even when it publishes
+    no MediaSession (e.g. TiviMate, R2). Callers may filter system processes
+    such as ``com.google.android.apps.mediashell`` (the Chromecast receiver).
+    """
+    if not dump:
+        return []
+
+    packages: list[str] = []
+    in_audio = False
+    for line in dump.split("\n"):
+        stripped = line.strip()
+        if not in_audio:
+            in_audio = "Audio playback" in stripped
+            continue
+        marker = "packages="
+        if marker not in stripped:
+            continue
+        pkg_part = stripped.split(marker, 1)[1]
+        for pkg in pkg_part.replace(",", " ").split():
+            if pkg and pkg not in packages:
+                packages.append(pkg)
+    return packages
+
 def parse_media_session(
     dump: str, foreground_package: str | None = None
 ) -> MediaSessionInfo | None:
@@ -105,8 +221,9 @@ def parse_media_session(
     Returns the best match from all active sessions:
     1. The session whose package matches the foreground app (if provided)
     2. The session that is currently playing (state=3)
-    3. The session that is paused (state=2)
-    4. Any active session with metadata
+    3. The session that is buffering (state=6)
+    4. The session that is paused (state=2)
+    5. Any active session with metadata
     """
     sessions = parse_all_media_sessions(dump)
     if not sessions:
@@ -117,6 +234,5 @@ def parse_media_session(
         for s in sessions:
             if s.package == foreground_package:
                 return s
-
-    # Already sorted: playing > paused > other
+    # Already sorted: playing > buffering > paused > other
     return sessions[0]

custom_components/nvidia_shield/ha_adb_common/running_apps.py

@@ -12,6 +12,7 @@ def running_apps_from_tasks(
     recent_tasks: list[dict],
     media_sessions: list[MediaSessionInfo] | None = None,
     foreground_package: str | None = None,
+    last_known: dict[str, MediaSessionInfo] | None = None,
 ) -> list[dict] | None:
     """Build a list of running app dicts from recent tasks + media sessions.
 
@@ -19,6 +20,9 @@ def running_apps_from_tasks(
         recent_tasks: List of {"package": str} from ADB recent tasks.
         media_sessions: Optional media sessions for playback state enrichment.
         foreground_package: The current foreground app package.
+        last_known: Optional per-package TTL-filtered last-known-state cache
+            (P3-3b) — apps without a live session carry their last known
+            playback state as ``last_known_state``/``last_known_title``.
 
     Returns None if there are fewer than 2 apps (no point showing a switcher
     with only one option).
@@ -47,6 +51,8 @@ def running_apps_from_tasks(
         if session:
             if session.playing:
                 app["state"] = "playing"
+            elif session.buffering:
+                app["state"] = "buffering"
             elif session.paused:
                 app["state"] = "paused"
             else:
@@ -57,6 +63,17 @@ def running_apps_from_tasks(
                 app["artist"] = session.artist
         else:
             app["state"] = "running"
+            # P3-3b: no live session — surface the TTL-capped last-known state
+            cached = (last_known or {}).get(pkg)
+            if cached is not None:
+                if cached.playing:
+                    app["last_known_state"] = "playing"
+                elif cached.buffering:
+                    app["last_known_state"] = "buffering"
+                elif cached.paused:
+                    app["last_known_state"] = "paused"
+                if cached.title:
+                    app["last_known_title"] = cached.title
 
         apps.append(app)
 

custom_components/nvidia_shield/helpers.py

@@ -0,0 +1,94 @@
+"""Shared config helpers for the NVIDIA Shield integration."""
+
+import os
+from dataclasses import dataclass
+
+from homeassistant.core import HomeAssistant
+
+from .const import (
+    CONF_ADB_ENABLED,
+    CONF_ADB_HOST,
+    CONF_ADB_PORT,
+    CONF_HOST,
+    CONF_PROTOCOL_HOST,
+    DEFAULT_ADB_PORT,
+    DOMAIN,
+)
+
+
+@dataclass
+class AdbConfig:
+    """Resolved ADB connection settings for a config entry."""
+
+    host: str
+    port: int
+    key_path: str
+
+
+def adb_key_path(hass: HomeAssistant) -> str:
+    """Path of the ADB private key for this integration (may not exist yet)."""
+    return os.path.join(hass.config.config_dir, ".storage", DOMAIN, "adbkey")
+
+
+def protocol_cert_paths(hass: HomeAssistant) -> tuple[str, str]:
+    """Local (certfile, keyfile) paths for the remote protocol client.
+
+    Mirrors core androidtv_remote's storage pattern: private material under
+    ``.storage/<domain>/``. Shared between config-flow pairing and runtime —
+    an entry aborts duplicate setup by unique_id (= device MAC), so one pair
+    of files suffices per install.
+    """
+    base = os.path.join(hass.config.config_dir, ".storage", DOMAIN)
+    os.makedirs(base, exist_ok=True)
+    return os.path.join(base, "client.pem"), os.path.join(base, "client.key")
+
+
+def entry_host(entry) -> str:
+    """The Shield's address for an entry (t41: ONE field).
+
+    ``options`` is the source of truth; ``data`` is read as a fallback so an
+    entry created by an older flow (or a hand-written seed) still resolves.
+    """
+    options = getattr(entry, "options", None) or {}
+    data = getattr(entry, "data", None) or {}
+    return str(options.get(CONF_HOST) or data.get(CONF_HOST) or "").strip()
+
+
+def seed_host(block: dict) -> str:
+    """The address a YAML seed block carries (t41).
+
+    ``host`` is the current key; the legacy ``protocol_host`` / ``adb_host``
+    stay accepted so an existing configuration.yaml keeps seeding, protocol
+    first (that transport is the one that cannot fall back to anything else).
+    """
+    for key in (CONF_HOST, CONF_PROTOCOL_HOST, CONF_ADB_HOST):
+        value = str((block or {}).get(key) or "").strip()
+        if value:
+            return value
+    return ""
+
+
+def seed_adb_enabled(block: dict) -> bool:
+    """Does a seed block ask for ADB? (t32 F4's shape rule, t41's keys).
+
+    An explicit ``adb_enabled`` wins. Otherwise an address that names the Shield
+    — the current ``host`` key or the legacy ``adb_host`` — turns ADB on, while
+    a protocol-only block leaves it off.
+    """
+    block = block or {}
+    if CONF_ADB_ENABLED in block:
+        return bool(block[CONF_ADB_ENABLED])
+    return bool(block.get(CONF_HOST) or block.get(CONF_ADB_HOST))
+
+
+def resolve_adb_config(hass: HomeAssistant, entry) -> AdbConfig | None:
+    """Resolve host/port/key_path for the entry's ADB connection, or None.
+
+    Priority: the entry's own address (t41: no other integration is consulted)
+    and its ADB port option.
+    """
+    host = entry_host(entry)
+    if not host:
+        return None
+    port = int(entry.options.get(CONF_ADB_PORT, DEFAULT_ADB_PORT))
+    return AdbConfig(host=host, port=port, key_path=adb_key_path(hass))

custom_components/nvidia_shield/manifest.json

@@ -1,16 +1,25 @@
 {
-	"domain": "nvidia_shield",
-	"name": "NVIDIA Shield",
-	"codeowners": [
-		"@notexpectedyet"
-	],
-	"config_flow": true,
-	"dependencies": [],
-	"documentation": "https://git.notexpectedyet.com/notexpectedyet/ha-nvidia-shield",
-	"iot_class": "local_polling",
-	"issue_tracker": "https://git.notexpectedyet.com/notexpectedyet/ha-nvidia-shield/issues",
-	"requirements": [
-		"adb-shell>=0.4.0"
-	],
-	"version": "2026.10.08"
+  "domain": "nvidia_shield",
+  "name": "NVIDIA Shield",
+  "codeowners": [
+    "@notexpectedyet"
+  ],
+  "config_flow": true,
+  "dependencies": [],
+  "documentation": "https://git.notexpectedyet.com/notexpectedyet/ha-nvidia-shield",
+  "iot_class": "local_push",
+  "issue_tracker": "https://git.notexpectedyet.com/notexpectedyet/ha-nvidia-shield/issues",
+  "requirements": [
+    "adb-shell>=0.4.0",
+    "androidtvremote2>=0.2.0"
+  ],
+  "version": "2026.10.12",
+  "zeroconf": [
+    "_androidtvremote2._tcp.local."
+  ],
+  "integration_type": "device",
+  "loggers": [
+    "adb_shell",
+    "androidtvremote2"
+  ]
 }

custom_components/nvidia_shield/remote.py

@@ -0,0 +1,224 @@
+"""Remote entities for NVIDIA Shield — protocol-backed (Phase 2, t10).
+
+Port of HA core androidtv_remote/remote.py semantics onto the absorbed
+remote-protocol transport (androidtvremote2) owned by ShieldConnectionManager:
+
+- ``send_command`` accepts SHORT/START_LONG/END_LONG direction prefixes
+  (``"START_LONG:<key>"``; no prefix = SHORT) and core-style service keys;
+  the core port's hold_secs+direction validation quirks are not carried over —
+  long presses are expressed as the START_LONG/END_LONG pair instead;
+- ``num_repeats`` / ``delay_secs`` are honored; long-press duration uses the
+  ``hold_secs`` parameter;
+- ``activity`` = the protocol current-app push (package; name resolution is
+  deferred app-map work);
+- turn on/off send the POWER key and honor the is_on push (no superfluous
+  toggling when the state already matches).
+"""
+
+import asyncio
+
+from homeassistant.components.remote import RemoteEntity
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers.entity import DeviceInfo
+from homeassistant.helpers.entity_platform import AddEntitiesCallback
+
+from .connection import ShieldConnectionManager
+from .const import (
+    DOMAIN,
+    PROTOCOL_REMOTE_KEYS,
+    SCRIPT_VAR_COMMAND,
+    SCRIPT_VAR_DELAY_SECS,
+    SCRIPT_VAR_HOLD_SECS,
+    SCRIPT_VAR_NUM_REPEATS,
+    remote_command_script,
+)
+from .media_player import async_call_script, async_run_command_script, entity_available
+
+_START_PREFIX = "START_LONG:"
+_END_PREFIX = "END_LONG:"
+_SHORT_PREFIX = "SHORT:"
+_POWER_KEY = "KEYCODE_POWER"
+
+
+def _split_command(command: str) -> tuple[str, str]:
+    """Key + direction from a command string (default SHORT)."""
+    lowered = command.strip()
+    if lowered.startswith(_START_PREFIX):
+        return lowered[len(_START_PREFIX):], "START_LONG"
+    if lowered.startswith(_END_PREFIX):
+        return lowered[len(_END_PREFIX):], "END_LONG"
+    if lowered.startswith(_SHORT_PREFIX):
+        return lowered[len(_SHORT_PREFIX):], "SHORT"
+    return lowered, "SHORT"
+
+
+def _key_code_name(command: str) -> str:
+    """Command kind → protocol keycode (raw KEYCODE_ names pass through)."""
+    mapped = PROTOCOL_REMOTE_KEYS.get(command.lower())
+    if mapped is not None:
+        return mapped
+    upper = command.upper()
+    if upper.startswith("KEYCODE_"):
+        return upper
+    return upper  # unknown names: the library reports/validates them
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    entry: ConfigEntry,
+    async_add_entities: AddEntitiesCallback,
+) -> None:
+    """Add the protocol-backed remote entity for this entry."""
+    async_add_entities([NvidiaShieldRemoteEntity(hass, entry)])
+
+
+class NvidiaShieldRemoteEntity(RemoteEntity):
+    """Remote entity over the manager's androidtvremote2 transport."""
+
+    _attr_has_entity_name = True
+    _attr_name = None
+    _attr_should_poll = False
+
+    def __init__(self, hass: HomeAssistant, entry: ConfigEntry) -> None:
+        self.hass = hass
+        self._entry = entry
+        self._manager: ShieldConnectionManager | None = getattr(
+            entry, "runtime_data", None
+        )
+        self._attr_unique_id = f"{DOMAIN}_{entry.entry_id}_remote"
+
+    def _manager_of(self) -> ShieldConnectionManager | None:
+        return getattr(self._entry, "runtime_data", None)
+
+    @property
+    def device_info(self) -> DeviceInfo:
+        return DeviceInfo(
+            identifiers={(DOMAIN, self._entry.entry_id)},
+            name=self._entry.title,
+            manufacturer="NVIDIA",
+            model="Shield TV",
+        )
+
+    @property
+    def available(self) -> bool:
+        """Available while ANY usable transport can serve a command (t40).
+
+        The same ladder as the media player (``entity_available``): protocol
+        wired+available, ADB connected, fresh wake data or a passive manager all
+        count as usable, and a passive manager stays available — nothing to
+        transport is not a broken one.
+        """
+        return entity_available(self._manager_of())
+
+    @property
+    def activity(self) -> str | None:
+        """Current foreground app reported by the protocol push."""
+        manager = self._manager_of()
+        if isinstance(manager, ShieldConnectionManager):
+            return manager.current_app
+        return None
+
+    @callback
+    def _refresh_state(self) -> None:
+        """Manager store changed — re-evaluate state (activity/available)."""
+        self._manager = self._manager_of()
+        self.async_write_ha_state()
+
+    async def async_added_to_hass(self) -> None:
+        manager = self._manager_of()
+        if isinstance(manager, ShieldConnectionManager):
+            self._manager_unregistered = manager.register_listener(
+                self._refresh_state
+            )
+
+    async def async_will_remove_from_hass(self) -> None:
+        unregistered = getattr(self, "_manager_unregistered", None)
+        if unregistered is not None:
+            unregistered()
+            self._manager_unregistered = None
+
+    async def async_turn_on(self, **kwargs) -> None:
+        """Wake the device — via the configured script, else the POWER key."""
+        # t44: `turn_on` is one configuration, and the remote entity is the other
+        # route to it; a script that owns the power sequence owns it here too.
+        if await async_run_command_script(self.hass, self._entry.options, "turn_on"):
+            return
+        manager = self._manager_of()
+        if not isinstance(manager, ShieldConnectionManager):
+            return
+        if manager.is_on is not False:
+            # Unknown counts as "maybe on" — no superfluous toggle.
+            return
+        await manager.send_protocol_key(_POWER_KEY, "SHORT")
+
+    async def async_turn_off(self, **kwargs) -> None:
+        """Sleep the device — via the configured script, else the POWER key."""
+        if await async_run_command_script(self.hass, self._entry.options, "turn_off"):
+            return
+        manager = self._manager_of()
+        if not isinstance(manager, ShieldConnectionManager):
+            return
+        if manager.is_on is not True:
+            return
+        await manager.send_protocol_key(_POWER_KEY, "SHORT")
+
+    async def async_send_command(
+        self,
+        command: list[str],
+        num_repeats: int = 1,
+        delay_secs: float = 0.0,
+        hold_secs: float = 0.0,
+    ) -> None:
+        """Send protocol keys — or hand the whole command to the configured script.
+
+        t47: with a remote command script configured, it replaces the key path
+        entirely and receives the service call's own parameters, named as they are
+        on the service: ``command`` (a list of key commands), ``num_repeats``,
+        ``delay_secs`` and ``hold_secs``. Unset, nothing changes: repeats, long
+        presses and delays go out as protocol keys exactly as before.
+        """
+        script = remote_command_script(self._entry.options)
+        if script:
+            await async_call_script(
+                self.hass,
+                script,
+                "remote.send_command",
+                {
+                    SCRIPT_VAR_COMMAND: command,
+                    SCRIPT_VAR_NUM_REPEATS: num_repeats,
+                    SCRIPT_VAR_DELAY_SECS: delay_secs,
+                    SCRIPT_VAR_HOLD_SECS: hold_secs,
+                },
+            )
+            return
+
+        manager = self._manager_of()
+        if not isinstance(manager, ShieldConnectionManager):
+            return
+        for _ in range(max(1, num_repeats)):
+            for cmd in command:
+                key_part, direction = _split_command(cmd)
+                key_name = _key_code_name(key_part)
+                if hold_secs > 0 and direction == "SHORT":
+                    if await manager.send_protocol_key(key_name, "START_LONG"):
+                        await asyncio.sleep(max(0.0, hold_secs))
+                        await manager.send_protocol_key(key_name, "END_LONG")
+                else:
+                    await manager.send_protocol_key(key_name, direction)
+            if delay_secs > 0:
+                await asyncio.sleep(delay_secs)
+
+    async def async_send_text(self, text: str) -> bool:
+        """Text entry (P5-2) via the protocol send_text (remote surface).
+
+        Falls back to ADB `input text` only when the protocol transport is
+        down or the send failed (the Shield may swallow IME text while its
+        on-screen keyboard is up, RESEARCH_IDEAS §2).
+        """
+        manager = self._manager_of()
+        if manager is None or not text:
+            return False
+        if await manager.send_text_ime(text):
+            return True
+        return await manager.send_adb_input_text(text)

custom_components/nvidia_shield/sensor.py

@@ -4,17 +4,20 @@ import logging
 
 from homeassistant.components.sensor import SensorEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import STATE_PLAYING, STATE_PAUSED
-from homeassistant.core import HomeAssistant, callback, Event
+from homeassistant.const import STATE_PAUSED, STATE_PLAYING
+from homeassistant.core import Event, HomeAssistant, callback
 from homeassistant.helpers.entity import DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.event import async_track_state_change_event
 
+from .connection import ShieldConnectionManager
 from .const import (
-    CONF_ANDROIDTV_ENTITY,
+    CONF_ADB_ENABLED,
+    CONF_APP_NAME_MAP,
     CONF_JELLYFIN_ENTITY,
     DOMAIN,
 )
+from .media_player import resolve_app_name
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -26,6 +29,10 @@ async def async_setup_entry(
 ) -> None:
     """Set up the Nvidia Shield sensor entities."""
     entities = [NvidiaShieldCurrentAppSensor(hass, entry)]
+    if entry.options.get(CONF_ADB_ENABLED, True):
+        # discovery is an ADB feature; with the transport off there is nothing
+        # to enumerate and the entity would only ever report "unavailable"
+        entities.append(NvidiaShieldAppsSensor(hass, entry))
 
     if entry.options.get(CONF_JELLYFIN_ENTITY):
         entities.append(NvidiaShieldNowPlayingSensor(hass, entry))
@@ -38,6 +45,10 @@ class NvidiaShieldSensorBase(SensorEntity):
 
     _attr_has_entity_name = True
     _attr_should_poll = False
+    # G12 (t30): poll-driven attributes never belong in the database
+    _unrecorded_attributes = frozenset(
+        {"app_id", "app_name", "playback_state", "installed_apps"}
+    )
 
     def __init__(self, hass: HomeAssistant, entry: ConfigEntry) -> None:
         self.hass = hass
@@ -60,49 +71,193 @@ class NvidiaShieldSensorBase(SensorEntity):
 
 
 class NvidiaShieldCurrentAppSensor(NvidiaShieldSensorBase):
-    """Current running app on the Shield."""
+    """Current running app on the Shield.
 
-    _attr_name = "Current App"
+    Source: the ShieldConnectionManager's StateStore — the protocol current-app
+    push, or the most recent visible ADB recent-task app when that has not
+    reported (t41: our own transports only).
+    """
+
+    _attr_translation_key = "current_app"
     _attr_icon = "mdi:application"
 
     def __init__(self, hass: HomeAssistant, entry: ConfigEntry) -> None:
         super().__init__(hass, entry)
-        self._androidtv_entity = entry.data[CONF_ANDROIDTV_ENTITY]
         self._attr_unique_id = f"{DOMAIN}_{entry.entry_id}_current_app"
 
+    def _manager(self) -> ShieldConnectionManager | None:
+        manager = getattr(self._entry, "runtime_data", None)
+        return manager if isinstance(manager, ShieldConnectionManager) else None
+
     async def async_added_to_hass(self) -> None:
-        self._unsub_listeners.append(
-            async_track_state_change_event(
-                self.hass, [self._androidtv_entity], self._handle_state_change
-            )
-        )
+        manager = self._manager()
+        if manager is not None:
+            # Refresh when the connection manager updates its store.
+            self._unsub_listeners.append(manager.register_listener(self._handle_store_update))
 
     @callback
-    def _handle_state_change(self, event: Event) -> None:
+    def _handle_store_update(self) -> None:
         self.async_write_ha_state()
 
+    def _package(self) -> str | None:
+        """The raw package of the app that is on screen (t41, t55).
+
+        StateStore priority chain (P3-3c): protocol current_app push → ADB
+        mResumedActivity (both via ``manager.foreground_app``) → the most
+        recent visible ADB recent task. The recents tier is a last resort for
+        a moment when neither live signal has reported yet; it keeps the
+        sensor from going None while ADB is still warming up.
+        """
+        manager = self._manager()
+        if manager is None:
+            return None
+        foreground = manager.foreground_app
+        if foreground:
+            return foreground
+        running = manager.running_apps
+        if running:
+            return running[0].get("package")
+        return None
+
     @property
     def native_value(self) -> str | None:
-        state = self.hass.states.get(self._androidtv_entity)
-        if not state:
-            return None
-        return state.attributes.get("app_name") or state.attributes.get("app_id")
+        """The resolved friendly name (t40), not the raw package id.
+
+        Exactly the ``media_player.app_name`` chain via the shared
+        ``resolve_app_name``: apps map → cached manifest label → the package
+        text itself. A bare or unknown package shows its package text rather
+        than None, like the media player's app_name.
+
+        This is why ``_package`` must be the CURRENT app and the label fetch
+        must be driven off it (t55): the device-manifest label is resolved on
+        demand for exactly the package passed here, so a live run showing a
+        package id means the label tier never answered — see
+        ``ShieldConnectionManager.app_label`` for the caching rule that makes
+        a miss retry instead of being stamped as an eternal "no label".
+        """
+        manager = self._manager()
+        return resolve_app_name(
+            self._package(),
+            dict(self._entry.options.get(CONF_APP_NAME_MAP) or {}),
+            manager.app_label if manager is not None else None,
+        )
 
     @property
     def extra_state_attributes(self) -> dict:
-        state = self.hass.states.get(self._androidtv_entity)
-        if not state:
-            return {}
-        return {
-            "app_id": state.attributes.get("app_id"),
-            "app_name": state.attributes.get("app_name"),
-        }
+        """The raw package stays visible here (t40) next to the shown name."""
+        package = self._package()
+        attrs: dict = {}
+        if package:
+            attrs["app_id"] = package
+        name = self.native_value
+        if name:
+            attrs["app_name"] = name
+        return attrs
+
+
+class NvidiaShieldAppsSensor(NvidiaShieldSensorBase):
+    """The apps installed on the Shield (t57) — a dashboard-facing surface.
+
+    The state is the app COUNT and the ``installed_apps`` attribute is the
+    table: ``[{package, name, icon}, ...]``, exactly what the Configure page's
+    Apps sub-screen edits. It is the answer to "it doesn't find all the apps":
+    the list comes from the device (``pm list packages -3`` plus the active
+    launcher), labelled through the cached ``pm dump`` path.
+
+    Only ADB-enabled entries get one. Discovery is a handful of shells, so it
+    runs once when the entity is added and then only when the table has gone
+    stale: ``async_update`` goes through the manager's TTL cache, so a poll on a
+    fresh table issues NO shell. A sweep that could not run is NOT an answer
+    (t62 F1): it is recorded as ``unknown`` — or shown as ``not_connected``
+    while the transport itself is down — and retried on the next update instead
+    of being frozen as a stamped-empty table for APP_LIST_TTL, while a
+    sweep that ran and found nothing IS the answer ``ok`` with a count of 0. On
+    top of that the user can ask for a refresh with the standard
+    ``homeassistant.update_entity`` action, and the Configure page runs the same
+    sweep from its discovery row. With ADB off, or unreachable, the attributes
+    say why and the state is 0 rather than raising.
+    """
+
+    _attr_translation_key = "installed_apps"
+    _attr_icon = "mdi:apps"
+    # Polling is what makes the standard `homeassistant.update_entity` action
+    # work for it — the user-facing "refresh the app list" trigger. The poll is
+    # free while the table is fresh: the manager returns the cache and issues no
+    # shell until APP_LIST_TTL expires. A sweep that COULD NOT run leaves no
+    # fresh table (t62 F1), so a later poll retries it — that retry is the
+    # recovery the old stamped-empty answer blocked for up to six hours.
+    _attr_should_poll = True
+
+    def __init__(self, hass: HomeAssistant, entry: ConfigEntry) -> None:
+        super().__init__(hass, entry)
+        self._attr_unique_id = f"{DOMAIN}_{entry.entry_id}_installed_apps"
+
+    def _manager(self) -> ShieldConnectionManager | None:
+        manager = getattr(self._entry, "runtime_data", None)
+        return manager if isinstance(manager, ShieldConnectionManager) else None
+
+    async def async_added_to_hass(self) -> None:
+        manager = self._manager()
+        if manager is not None:
+            self._unsub_listeners.append(manager.register_listener(self._handle_store_update))
+        # one discovery per entity lifetime; a load is already a wake-up moment,
+        # and nothing here runs on a state poll
+        self.hass.async_create_task(self.async_update())
+
+    @callback
+    def _handle_store_update(self) -> None:
+        if self.hass is not None:
+            self.async_write_ha_state()
+
+    async def async_update(self) -> None:
+        """Refresh the table when there is no fresh answer (t57, t62 F1).
+
+        HA's own poll (``_attr_should_poll``) and an explicit
+        ``homeassistant.update_entity`` both land here; the manager's TTL makes
+        it a no-op while the table is fresh, and a retry while it is not —
+        including after a sweep that could not run.
+        """
+        manager = self._manager()
+        if manager is None:
+            return
+        await manager.async_refresh_installed_apps()
+
+    @property
+    def native_value(self) -> int:
+        manager = self._manager()
+        return len(manager.installed_apps()) if manager is not None else 0
+
+    @property
+    def extra_state_attributes(self) -> dict:
+        """The table itself, plus why it may be empty (never a crash).
+
+        ``discovery`` is the honest reason (t62 F1): ``ok`` means the table IS
+        the answer, including a genuinely empty one, while ``unknown`` means
+        the last sweep could not run — so an empty list says nothing about the
+        device and the next update retries.
+        """
+        manager = self._manager()
+        if manager is None:
+            return {"installed_apps": [], "discovery": "unavailable"}
+        apps = manager.installed_apps()
+        attrs = {"installed_apps": apps}
+        if apps:
+            attrs["discovery"] = "ok"
+        elif not self._entry.options.get(CONF_ADB_ENABLED, True):
+            attrs["discovery"] = "adb_disabled"
+        elif not manager.connected:
+            attrs["discovery"] = "not_connected"
+        else:
+            # "ok" here is a real empty answer, "unknown" a sweep that could
+            # not run, "pending" one that has not completed yet.
+            attrs["discovery"] = manager.installed_apps_status
+        return attrs
 
 
 class NvidiaShieldNowPlayingSensor(NvidiaShieldSensorBase):
     """What's currently playing via Jellyfin."""
 
-    _attr_name = "Now Playing"
+    _attr_translation_key = "now_playing"
     _attr_icon = "mdi:play-circle"
 
     def __init__(self, hass: HomeAssistant, entry: ConfigEntry) -> None:

custom_components/nvidia_shield/services.yaml

@@ -0,0 +1,24 @@
+adb_command:
+  # Both fields required — integrating targeting must not be optional
+  # (docs/dev_101_services: no default target when none specified).
+  name: ADB command
+  description: Send a raw ADB shell command to the persistent connection of
+    an Nvidia Shield entry (the entry must have the adb_command_enabled
+    option on; the integration gates USE, not registration).
+  fields:
+    command:
+      name: Command
+      description: The shell command to run on the device, e.g.
+        "dumpsys power | head -5".
+      required: true
+      example: "dumpsys power | head -5"
+      selector:
+        text:
+    entity_id:
+      name: Entity
+      description: The Nvidia Shield media player entity to target.
+      required: true
+      selector:
+        entity:
+          integration: nvidia_shield
+          domain: media_player

custom_components/nvidia_shield/strings.json

@@ -3,69 +3,315 @@
     "step": {
       "user": {
         "title": "NVIDIA Shield",
-        "description": "Set up your NVIDIA Shield. Link the Android TV remote, Jellyfin, receiver, and power monitoring.",
+        "description": "{discovery_note}Set up your NVIDIA Shield. Everything here is optional except one state source — the Nvidia Remote Protocol or ADB. Link the devices and services you want to use.",
         "data": {
-          "name": "Device Name",
-          "androidtv_entity": "Android TV Remote",
-          "jellyfin_entity": "Jellyfin Media Player",
+          "name": "Name",
+          "jellyfin_entity": "Jellyfin media player",
           "receiver_entity": "Receiver",
-          "receiver_input": "Receiver Input",
-          "power_entity": "Power Switch",
-          "adb_enabled": "Enable ADB Media Session",
-          "adb_store_app_info": "Show App Media Info",
-          "adb_host": "ADB Host",
-          "adb_port": "ADB Port"
+          "receiver_input": "Receiver input",
+          "power_entity": "Power switch",
+          "adb_enabled": "Read state over ADB",
+          "adb_store_app_info": "Show title and artist",
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "protocol_enabled": "Add the Nvidia Remote Protocol"
         },
         "data_description": {
-          "androidtv_entity": "The media_player entity from the Android TV Remote integration.",
-          "jellyfin_entity": "The Jellyfin media_player for this device. Leave blank to auto-detect.",
-          "receiver_entity": "The receiver this device is connected to.",
-          "receiver_input": "Which input on the receiver (e.g. 'Shield').",
-          "power_entity": "Smart plug switch for reliable on/off detection.",
-          "adb_enabled": "Use ADB to read what's playing from any app (NewPipe, Spotify, etc.). Requires ADB debugging enabled on the Shield.",
-          "adb_store_app_info": "Show title and artist from non-Jellyfin apps. Disable to only show the app name (privacy mode).",
-          "adb_host": "Override the ADB host IP. Leave blank to auto-detect from the Android TV entity.",
-          "adb_port": "ADB port number. Default is 5555."
+          "jellyfin_entity": "The Jellyfin media_player for this Shield. Leave blank to detect it automatically.",
+          "receiver_entity": "The receiver, soundbar or speaker switch this Shield plays through. Leave blank if there is none.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'. Leave blank if you are not sure.",
+          "power_entity": "A smart plug switch, if you want reliable on/off detection.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "adb_store_app_info": "Shows the title and artist from non-Jellyfin apps. Turn off to show only the app name (privacy mode).",
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if you need a different address.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs a one-time PIN pairing right after this step."
+        }
+      },
+      "menu": {
+        "title": "Finish setup",
+        "description": "Pair the transports and check anything else before the entry is created. {pairing}.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "adb_enabled": "Read state over ADB",
+          "protocol_enabled": "Add the Nvidia Remote Protocol"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if you need a different address.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs a one-time PIN pairing right after this step."
+        },
+        "menu_options": {
+          "receiver": "Receiver",
+          "connection": "Connection",
+          "adb_pair": "Set up ADB",
+          "protocol_pair": "Pair the remote protocol",
+          "finish": "Create the entry"
+        }
+      },
+      "receiver": {
+        "title": "Receiver",
+        "description": "The receiver or soundbar this Shield plays through — a media_player, or a plain switch. Playback turns a switch receiver on when it is off.",
+        "data": {
+          "receiver_entity": "Receiver",
+          "receiver_input": "Receiver input"
+        },
+        "data_description": {
+          "receiver_entity": "The receiver, soundbar or speaker switch this Shield plays through. Leave blank if there is none.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'. Leave blank if you are not sure."
+        }
+      },
+      "connection": {
+        "title": "Connection",
+        "description": "The Shield's address, the ADB port and which transports this entry uses.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "adb_enabled": "Read state over ADB",
+          "protocol_enabled": "Add the Nvidia Remote Protocol"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if you need a different address.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs a one-time PIN pairing right after this step."
         }
       },
       "adb_pair": {
-        "title": "Pair ADB",
-        "description": "On the Shield, go to Settings > Developer options and enable Network debugging. Then click Submit. You will see a prompt on the Shield to allow the connection -- approve it. If the connection fails, click Submit to try again."
+        "title": "Allow ADB access",
+        "description": "On the Shield, open Settings > System > Developer options and turn on Network debugging (it may be called ADB debugging). Then select Submit — the Shield shows an Allow prompt; approve it. Nothing happened? Check the address below and select Submit again. Not now? Turn on 'Continue without ADB pairing' and select Submit.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "skip_pairing": "Continue without ADB pairing"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if the Shield moved or you gave it a different address.",
+          "adb_port": "The standard ADB port is 5555.",
+          "skip_pairing": "Finishes setup now and leaves ADB unpaired. The Pair ADB button stays available on the device page, so you can pair later."
+        }
+      },
+      "protocol_pair": {
+        "title": "Pair the remote protocol",
+        "description": "While this step is open the Shield shows a pairing code. Type it below and select Submit. If no code appears on the Shield, check the IP address below and select Submit again — pairing restarts and the Shield shows a new code. To set up without the remote protocol, turn on 'Continue without protocol pairing'.",
+        "data": {
+          "pairing_code": "Pairing code shown on the Shield",
+          "host": "The Shield's IP address",
+          "skip_pairing": "Continue without protocol pairing"
+        },
+        "data_description": {
+          "pairing_code": "The code the Shield displays while this step is open.",
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it if the Shield moved.",
+          "skip_pairing": "Finishes setup with the remote protocol off — it stays off until you pair it. Pair later from this integration's entry menu: choose Reconfigure."
+        }
+      },
+      "reauth_confirm": {
+        "title": "Re-pair Nvidia Shield",
+        "description": "The Shield no longer trusts the saved pairing certificate, usually after a factory reset. Select Submit to pair again — the Shield then shows a code."
       }
     },
     "error": {
-      "adb_failed": "Could not connect via ADB. Make sure Network debugging is enabled on the Shield and you approved the connection prompt. Click Submit to try again.",
-      "adb_no_host": "Could not determine the Shield's IP address. Set the ADB Host field on the previous step."
+      "adb_failed": "The Shield did not accept the ADB connection. Make sure Network debugging is on, approve the Allow prompt on the Shield, then select Submit to try again.",
+      "adb_no_host": "No IP address for the Shield yet. Fill in the host field above (a discovered Shield is pre-filled automatically).",
+      "protocol_no_host": "No IP address for the Shield yet. Fill in the host field above (a discovered Shield is pre-filled automatically).",
+      "protocol_pair_failed": "The Shield rejected that pairing code. Check the code on the Shield and select Submit to try again.",
+      "protocol_unavailable": "The androidtvremote2 library is not installed, so the remote protocol cannot pair. Install it and restart Home Assistant, or turn on 'Continue without protocol pairing' to finish setup anyway.",
+      "protocol_unreachable": "The Shield did not answer at that address. Check the address above and that the Shield is awake, then select Submit to try again — or turn on 'Continue without protocol pairing' to finish setup without it.",
+      "no_state_source": "No state source selected. Choose at least one: 'Add the Nvidia Remote Protocol' or 'Read state over ADB'.",
+      "invalid_app_map": "Each line must be package=name with a non-empty package (no spaces) and a non-empty name — for example ar.tvplayer.tv=TiviMate.",
+      "invalid_digit_delay": "The digit delay must be between 0.05 and 1.0 seconds."
     },
     "abort": {
-      "already_configured": "This Shield entity is already configured."
+      "already_configured": "This Shield is already set up.",
+      "reauth_successful": "Re-paired successfully.",
+      "reauth_skipped": "Pairing skipped. The saved certificate is still not trusted, so the remote protocol stays unavailable until you pair again.",
+      "reauth_entry_missing": "This entry no longer exists.",
+      "reconfigure_skipped": "Nothing changed — the remote protocol stays off until you pair it. Choose Reconfigure from this integration's entry menu when you are ready.",
+      "reconfigure_entry_missing": "This entry no longer exists, so there is nothing to reconfigure.",
+      "zeroconf_no_host": "The discovery event carried no usable address.",
+      "yaml_seed_only": {},
+      "yaml_seed": {
+        "title": "YAML succeeded earlier",
+        "message": "The configuration.yaml nvidia_shield block is seed-only: it starts the standard interactive flow. Removing the YAML block creates or deletes nothing."
+      }
     }
   },
   "options": {
     "step": {
       "init": {
-        "title": "NVIDIA Shield Settings",
-        "description": "Configure linked devices and monitoring.",
+        "title": "NVIDIA Shield settings",
+        "description": "Settings for this Shield. Saving reloads the integration so the change takes effect. {discovery}.",
         "data": {
-          "jellyfin_entity": "Jellyfin Media Player",
+          "jellyfin_entity": "Jellyfin media player",
           "receiver_entity": "Receiver",
-          "receiver_input": "Receiver Input",
-          "power_entity": "Power Switch",
-          "adb_enabled": "Enable ADB Media Session",
-          "adb_store_app_info": "Show App Media Info",
-          "adb_host": "ADB Host",
-          "adb_port": "ADB Port"
+          "receiver_input": "Receiver input",
+          "power_entity": "Power switch",
+          "adb_enabled": "Read state over ADB",
+          "protocol_enabled": "Add the Nvidia Remote Protocol",
+          "adb_store_app_info": "Show title and artist",
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "app_name_map": "App names and icons",
+          "adb_command_enabled": "Enable the adb_command service",
+          "channel_digit_delay": "Channel digit delay (seconds)",
+          "channel_send_enter": "Send ENTER after channel digits",
+          "script_turn_on": "Turn on script",
+          "script_turn_off": "Turn off script",
+          "script_volume_up": "Volume up script",
+          "script_volume_down": "Volume down script",
+          "script_volume_set": "Volume set script",
+          "script_volume_mute": "Mute script",
+          "script_select_source": "Select source script",
+          "logcat_events": "Instant app detection (logcat stream)",
+          "remote_command_script": "Remote command script"
         },
         "data_description": {
-          "jellyfin_entity": "The Jellyfin media_player for this device. Session stream info is read from the HA Jellyfin integration's existing coordinator — no extra config needed.",
-          "receiver_entity": "The receiver this device is connected to.",
-          "receiver_input": "Which input on the receiver.",
-          "power_entity": "Smart plug switch for reliable on/off detection.",
-          "adb_enabled": "Use ADB to read now-playing from any app. Requires ADB debugging on the Shield.",
-          "adb_store_app_info": "Show title and artist from non-Jellyfin apps. Disable for privacy.",
-          "adb_host": "IP address for ADB connection. Leave blank to auto-detect from the Android TV Remote integration.",
-          "adb_port": "ADB port (default 5555)."
+          "jellyfin_entity": "The Jellyfin media_player for this Shield. Stream details come from the HA Jellyfin integration — no extra setup needed.",
+          "receiver_entity": "The receiver or soundbar this Shield plays through — a media_player, or a plain switch that playback turns on when it is off.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'.",
+          "power_entity": "A smart plug switch, if you want reliable on/off detection.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "adb_store_app_info": "Shows the title and artist from non-Jellyfin apps. Turn off to show only the app name (privacy mode).",
+          "host": "The Shield's IP address. Change it only if the Shield moved or you gave it a different address.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). Turning it on needs a one-time PIN pairing — use Reconfigure on the entry to pair.",
+          "adb_port": "The ADB port. The standard value is 5555.",
+          "app_name_map": "One entry per line, package=name (for example ar.tvplayer.tv=TiviMate), with an optional |icon after the name. Leave blank to clear.",
+          "adb_command_enabled": "Adds the nvidia_shield.adb_command service (a raw ADB shell command over the persistent connection). Security-relevant: leave it off unless you need it — the same opt-in posture as the core androidtv integration.",
+          "channel_digit_delay": "Pause between the channel digits entered via play_media(channel) — 0.05 to 1.0 seconds (default 0.1, the tested value).",
+          "channel_send_enter": "Presses ENTER after the last digit (protocol key first, then the ADB keyevent fallback). Off by default, matching TiviMate's tested behavior.",
+          "logcat_events": "Detects app changes instantly through a dedicated logcat stream (AdbDevice.streaming_shell). Off by default — polling keeps the state correct either way, and the integration falls back to polling if the stream keeps failing.",
+          "remote_command_script": "One script for remote.send_command. It replaces the key path when set and receives the call's own parameters as variables: command (the list of key commands), num_repeats, delay_secs and hold_secs."
+        },
+        "menu_options": {
+          "connection": "Main setup",
+          "receiver": "Receiver",
+          "apps": "Apps",
+          "discover": "Discover installed apps",
+          "scripts": "Scripts",
+          "finish": "Save and close"
         }
+      },
+      "connection": {
+        "title": "Main setup",
+        "description": "The Shield's address, the transports it is read over, and the devices this entry links to. Changes here are kept when you save.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "adb_enabled": "Read state over ADB",
+          "adb_store_app_info": "Show title and artist",
+          "protocol_enabled": "Add the Nvidia Remote Protocol",
+          "logcat_events": "Watch app launches over logcat",
+          "adb_command_enabled": "Allow the adb_command action",
+          "jellyfin_entity": "Jellyfin media player",
+          "power_entity": "Power switch"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Change it only if the Shield moved.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "adb_store_app_info": "Shows the title and artist from non-Jellyfin apps. Turn off to show only the app name (privacy mode).",
+          "protocol_enabled": "The all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs the one-time PIN pairing from setup.",
+          "logcat_events": "Uses a second ADB stream to notice app launches the moment they happen. Leave off unless you want the faster app switch.",
+          "adb_command_enabled": "Exposes the adb_command action for this entry's media player. Off by default; it runs arbitrary shell commands on the Shield.",
+          "jellyfin_entity": "The Jellyfin media_player for this Shield. Leave blank to detect it automatically.",
+          "power_entity": "A smart plug switch, if you want reliable on/off detection."
+        }
+      },
+      "receiver": {
+        "title": "Receiver",
+        "description": "The receiver or soundbar this Shield plays through — a media_player, or a plain switch for a soundbar that only turns on and off. Playback turns a switch receiver on when it is off, so no receiver volume scripts are needed for that.",
+        "data": {
+          "receiver_entity": "Receiver",
+          "receiver_input": "Receiver input"
+        },
+        "data_description": {
+          "receiver_entity": "The receiver, soundbar or speaker switch this Shield plays through. Leave blank if there is none.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'. Leave blank if you are not sure."
+        }
+      },
+      "apps": {
+        "title": "Apps",
+        "description": "One app per line: the package id, an equals sign, the name to show, and optionally a pipe and an icon (a picture URL or a camera entity id). Blank uses the built-in list.",
+        "data": {
+          "app_name_map": "App names and icons"
+        },
+        "data_description": {
+          "app_name_map": "One row per app, for example ar.tvplayer.tv=TiviMate|http://192.168.1.10/tivi.png. The name is what the source list, the Current App sensor and the media player show."
+        }
+      },
+      "scripts": {
+        "title": "Scripts",
+        "description": "Optional: run a Home Assistant script instead of the built-in command, per command. Clear a row to go back to the built-in path.",
+        "data": {
+          "remote_command_script": "Script for remote.send_command",
+          "script_turn_on": "turn_on script",
+          "script_turn_off": "turn_off script",
+          "script_volume_up": "volume_up script",
+          "script_volume_down": "volume_down script",
+          "script_volume_set": "volume_set script",
+          "script_volume_mute": "volume_mute script",
+          "script_select_source": "select_source script",
+          "channel_digit_delay": "Delay between channel digits (seconds)",
+          "channel_send_enter": "Send ENTER after channel digits"
+        },
+        "data_description": {
+          "remote_command_script": "Replaces the whole remote.send_command path for this Shield. Leave blank to use the built-in key presses.",
+          "channel_digit_delay": "The gap between the digits of a channel number, 0.05 to 1.0 seconds. Default 0.1.",
+          "channel_send_enter": "Turn on if your channel app needs ENTER after the digits."
+        }
+      }
+    }
+  },
+  "services": {
+    "adb_command": {
+      "name": "ADB command",
+      "description": "Send a raw ADB shell command to the persistent connection of an Nvidia Shield entry (option-gated use).",
+      "fields": {
+        "command": {
+          "name": "Command",
+          "description": "The shell command to run on the device."
+        },
+        "entity_id": {
+          "name": "Entity",
+          "description": "The Nvidia Shield media player to target."
+        }
+      }
+    }
+  },
+  "exceptions": {
+    "invalid_command": {
+      "title": "Empty command",
+      "message": "The command field is empty — nothing was sent."
+    },
+    "unsupported_target": {
+      "title": "Unsupported entity for adb_command",
+      "message": "{entity_id} is not an adb_command participant (its entry must enable the adb_command_enabled option) — command not sent."
+    },
+    "adb_unavailable": {
+      "title": "ADB unavailable",
+      "message": "The ADB connection of {entity_id} is down — command not sent."
+    },
+    "unknown_source": {
+      "title": "Unknown source",
+      "message": "'{source}' is not one of this Shield's apps. Use a name from the source list — the app names from the Apps map, or the built-in list when no map is set."
+    },
+    "command_script_failed": {
+      "title": "Command script failed",
+      "message": "The script configured for {action} ({script}) failed: {error}"
+    }
+  },
+  "entity": {
+    "sensor": {
+      "current_app": {
+        "name": "Current app"
+      },
+      "now_playing": {
+        "name": "Now playing"
+      },
+      "installed_apps": {
+        "name": "Installed apps"
       }
     }
   }

custom_components/nvidia_shield/translations/en.json

@@ -3,69 +3,315 @@
     "step": {
       "user": {
         "title": "NVIDIA Shield",
-        "description": "Set up your NVIDIA Shield. Link the Android TV remote, Jellyfin, receiver, and power monitoring.",
+        "description": "{discovery_note}Set up your NVIDIA Shield. Everything here is optional except one state source — the Nvidia Remote Protocol or ADB. Link the devices and services you want to use.",
         "data": {
-          "name": "Device Name",
-          "androidtv_entity": "Android TV Remote",
-          "jellyfin_entity": "Jellyfin Media Player",
+          "name": "Name",
+          "jellyfin_entity": "Jellyfin media player",
           "receiver_entity": "Receiver",
-          "receiver_input": "Receiver Input",
-          "power_entity": "Power Switch",
-          "adb_enabled": "Enable ADB Media Session",
-          "adb_store_app_info": "Show App Media Info",
-          "adb_host": "ADB Host",
-          "adb_port": "ADB Port"
+          "receiver_input": "Receiver input",
+          "power_entity": "Power switch",
+          "adb_enabled": "Read state over ADB",
+          "adb_store_app_info": "Show title and artist",
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "protocol_enabled": "Add the Nvidia Remote Protocol"
         },
         "data_description": {
-          "androidtv_entity": "The media_player entity from the Android TV Remote integration.",
-          "jellyfin_entity": "The Jellyfin media_player for this device. Leave blank to auto-detect.",
-          "receiver_entity": "The receiver this device is connected to.",
-          "receiver_input": "Which input on the receiver (e.g. 'Shield').",
-          "power_entity": "Smart plug switch for reliable on/off detection.",
-          "adb_enabled": "Use ADB to read what's playing from any app (NewPipe, Spotify, etc.). Requires ADB debugging enabled on the Shield.",
-          "adb_store_app_info": "Show title and artist from non-Jellyfin apps. Disable to only show the app name (privacy mode).",
-          "adb_host": "Override the ADB host IP. Leave blank to auto-detect from the Android TV entity.",
-          "adb_port": "ADB port number. Default is 5555."
+          "jellyfin_entity": "The Jellyfin media_player for this Shield. Leave blank to detect it automatically.",
+          "receiver_entity": "The receiver, soundbar or speaker switch this Shield plays through. Leave blank if there is none.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'. Leave blank if you are not sure.",
+          "power_entity": "A smart plug switch, if you want reliable on/off detection.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "adb_store_app_info": "Shows the title and artist from non-Jellyfin apps. Turn off to show only the app name (privacy mode).",
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if you need a different address.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs a one-time PIN pairing right after this step."
+        }
+      },
+      "menu": {
+        "title": "Finish setup",
+        "description": "Pair the transports and check anything else before the entry is created. {pairing}.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "adb_enabled": "Read state over ADB",
+          "protocol_enabled": "Add the Nvidia Remote Protocol"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if you need a different address.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs a one-time PIN pairing right after this step."
+        },
+        "menu_options": {
+          "receiver": "Receiver",
+          "connection": "Connection",
+          "adb_pair": "Set up ADB",
+          "protocol_pair": "Pair the remote protocol",
+          "finish": "Create the entry"
+        }
+      },
+      "receiver": {
+        "title": "Receiver",
+        "description": "The receiver or soundbar this Shield plays through — a media_player, or a plain switch. Playback turns a switch receiver on when it is off.",
+        "data": {
+          "receiver_entity": "Receiver",
+          "receiver_input": "Receiver input"
+        },
+        "data_description": {
+          "receiver_entity": "The receiver, soundbar or speaker switch this Shield plays through. Leave blank if there is none.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'. Leave blank if you are not sure."
+        }
+      },
+      "connection": {
+        "title": "Connection",
+        "description": "The Shield's address, the ADB port and which transports this entry uses.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "adb_enabled": "Read state over ADB",
+          "protocol_enabled": "Add the Nvidia Remote Protocol"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if you need a different address.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs a one-time PIN pairing right after this step."
         }
       },
       "adb_pair": {
-        "title": "Pair ADB",
-        "description": "On the Shield, go to Settings > Developer options and enable Network debugging. Then click Submit. You will see a prompt on the Shield to allow the connection -- approve it. If the connection fails, click Submit to try again."
+        "title": "Allow ADB access",
+        "description": "On the Shield, open Settings > System > Developer options and turn on Network debugging (it may be called ADB debugging). Then select Submit — the Shield shows an Allow prompt; approve it. Nothing happened? Check the address below and select Submit again. Not now? Turn on 'Continue without ADB pairing' and select Submit.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "skip_pairing": "Continue without ADB pairing"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it only if the Shield moved or you gave it a different address.",
+          "adb_port": "The standard ADB port is 5555.",
+          "skip_pairing": "Finishes setup now and leaves ADB unpaired. The Pair ADB button stays available on the device page, so you can pair later."
+        }
+      },
+      "protocol_pair": {
+        "title": "Pair the remote protocol",
+        "description": "While this step is open the Shield shows a pairing code. Type it below and select Submit. If no code appears on the Shield, check the IP address below and select Submit again — pairing restarts and the Shield shows a new code. To set up without the remote protocol, turn on 'Continue without protocol pairing'.",
+        "data": {
+          "pairing_code": "Pairing code shown on the Shield",
+          "host": "The Shield's IP address",
+          "skip_pairing": "Continue without protocol pairing"
+        },
+        "data_description": {
+          "pairing_code": "The code the Shield displays while this step is open.",
+          "host": "The Shield's IP address. Pre-filled when the Shield was discovered — change it if the Shield moved.",
+          "skip_pairing": "Finishes setup with the remote protocol off — it stays off until you pair it. Pair later from this integration's entry menu: choose Reconfigure."
+        }
+      },
+      "reauth_confirm": {
+        "title": "Re-pair Nvidia Shield",
+        "description": "The Shield no longer trusts the saved pairing certificate, usually after a factory reset. Select Submit to pair again — the Shield then shows a code."
       }
     },
     "error": {
-      "adb_failed": "Could not connect via ADB. Make sure Network debugging is enabled on the Shield and you approved the connection prompt. Click Submit to try again.",
-      "adb_no_host": "Could not determine the Shield's IP address. Set the ADB Host field on the previous step."
+      "adb_failed": "The Shield did not accept the ADB connection. Make sure Network debugging is on, approve the Allow prompt on the Shield, then select Submit to try again.",
+      "adb_no_host": "No IP address for the Shield yet. Fill in the host field above (a discovered Shield is pre-filled automatically).",
+      "protocol_no_host": "No IP address for the Shield yet. Fill in the host field above (a discovered Shield is pre-filled automatically).",
+      "protocol_pair_failed": "The Shield rejected that pairing code. Check the code on the Shield and select Submit to try again.",
+      "protocol_unavailable": "The androidtvremote2 library is not installed, so the remote protocol cannot pair. Install it and restart Home Assistant, or turn on 'Continue without protocol pairing' to finish setup anyway.",
+      "protocol_unreachable": "The Shield did not answer at that address. Check the address above and that the Shield is awake, then select Submit to try again — or turn on 'Continue without protocol pairing' to finish setup without it.",
+      "no_state_source": "No state source selected. Choose at least one: 'Add the Nvidia Remote Protocol' or 'Read state over ADB'.",
+      "invalid_app_map": "Each line must be package=name with a non-empty package (no spaces) and a non-empty name — for example ar.tvplayer.tv=TiviMate.",
+      "invalid_digit_delay": "The digit delay must be between 0.05 and 1.0 seconds."
     },
     "abort": {
-      "already_configured": "This Shield entity is already configured."
+      "already_configured": "This Shield is already set up.",
+      "reauth_successful": "Re-paired successfully.",
+      "reauth_skipped": "Pairing skipped. The saved certificate is still not trusted, so the remote protocol stays unavailable until you pair again.",
+      "reauth_entry_missing": "This entry no longer exists.",
+      "reconfigure_skipped": "Nothing changed — the remote protocol stays off until you pair it. Choose Reconfigure from this integration's entry menu when you are ready.",
+      "reconfigure_entry_missing": "This entry no longer exists, so there is nothing to reconfigure.",
+      "zeroconf_no_host": "The discovery event carried no usable address.",
+      "yaml_seed_only": {},
+      "yaml_seed": {
+        "title": "YAML succeeded earlier",
+        "message": "The configuration.yaml nvidia_shield block is seed-only: it starts the standard interactive flow. Removing the YAML block creates or deletes nothing."
+      }
     }
   },
   "options": {
     "step": {
       "init": {
-        "title": "NVIDIA Shield Settings",
-        "description": "Configure linked devices and monitoring.",
+        "title": "NVIDIA Shield settings",
+        "description": "Settings for this Shield. Saving reloads the integration so the change takes effect. {discovery}.",
         "data": {
-          "jellyfin_entity": "Jellyfin Media Player",
+          "jellyfin_entity": "Jellyfin media player",
           "receiver_entity": "Receiver",
-          "receiver_input": "Receiver Input",
-          "power_entity": "Power Switch",
-          "adb_enabled": "Enable ADB Media Session",
-          "adb_store_app_info": "Show App Media Info",
-          "adb_host": "ADB Host",
-          "adb_port": "ADB Port"
+          "receiver_input": "Receiver input",
+          "power_entity": "Power switch",
+          "adb_enabled": "Read state over ADB",
+          "protocol_enabled": "Add the Nvidia Remote Protocol",
+          "adb_store_app_info": "Show title and artist",
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "app_name_map": "App names and icons",
+          "adb_command_enabled": "Enable the adb_command service",
+          "channel_digit_delay": "Channel digit delay (seconds)",
+          "channel_send_enter": "Send ENTER after channel digits",
+          "script_turn_on": "Turn on script",
+          "script_turn_off": "Turn off script",
+          "script_volume_up": "Volume up script",
+          "script_volume_down": "Volume down script",
+          "script_volume_set": "Volume set script",
+          "script_volume_mute": "Mute script",
+          "script_select_source": "Select source script",
+          "logcat_events": "Instant app detection (logcat stream)",
+          "remote_command_script": "Remote command script"
         },
         "data_description": {
-          "jellyfin_entity": "The Jellyfin media_player for this device. Session stream info is read from the HA Jellyfin integration's existing coordinator — no extra config needed.",
-          "receiver_entity": "The receiver this device is connected to.",
-          "receiver_input": "Which input on the receiver.",
-          "power_entity": "Smart plug switch for reliable on/off detection.",
-          "adb_enabled": "Use ADB to read now-playing from any app. Requires ADB debugging on the Shield.",
-          "adb_store_app_info": "Show title and artist from non-Jellyfin apps. Disable for privacy.",
-          "adb_host": "IP address for ADB connection. Leave blank to auto-detect from the Android TV Remote integration.",
-          "adb_port": "ADB port (default 5555)."
+          "jellyfin_entity": "The Jellyfin media_player for this Shield. Stream details come from the HA Jellyfin integration — no extra setup needed.",
+          "receiver_entity": "The receiver or soundbar this Shield plays through — a media_player, or a plain switch that playback turns on when it is off.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'.",
+          "power_entity": "A smart plug switch, if you want reliable on/off detection.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "adb_store_app_info": "Shows the title and artist from non-Jellyfin apps. Turn off to show only the app name (privacy mode).",
+          "host": "The Shield's IP address. Change it only if the Shield moved or you gave it a different address.",
+          "protocol_enabled": "Adds the all-in-one remote-protocol transport (power, availability, app push and volume readout). Turning it on needs a one-time PIN pairing — use Reconfigure on the entry to pair.",
+          "adb_port": "The ADB port. The standard value is 5555.",
+          "app_name_map": "One entry per line, package=name (for example ar.tvplayer.tv=TiviMate), with an optional |icon after the name. Leave blank to clear.",
+          "adb_command_enabled": "Adds the nvidia_shield.adb_command service (a raw ADB shell command over the persistent connection). Security-relevant: leave it off unless you need it — the same opt-in posture as the core androidtv integration.",
+          "channel_digit_delay": "Pause between the channel digits entered via play_media(channel) — 0.05 to 1.0 seconds (default 0.1, the tested value).",
+          "channel_send_enter": "Presses ENTER after the last digit (protocol key first, then the ADB keyevent fallback). Off by default, matching TiviMate's tested behavior.",
+          "logcat_events": "Detects app changes instantly through a dedicated logcat stream (AdbDevice.streaming_shell). Off by default — polling keeps the state correct either way, and the integration falls back to polling if the stream keeps failing.",
+          "remote_command_script": "One script for remote.send_command. It replaces the key path when set and receives the call's own parameters as variables: command (the list of key commands), num_repeats, delay_secs and hold_secs."
+        },
+        "menu_options": {
+          "connection": "Main setup",
+          "receiver": "Receiver",
+          "apps": "Apps",
+          "discover": "Discover installed apps",
+          "scripts": "Scripts",
+          "finish": "Save and close"
         }
+      },
+      "connection": {
+        "title": "Main setup",
+        "description": "The Shield's address, the transports it is read over, and the devices this entry links to. Changes here are kept when you save.",
+        "data": {
+          "host": "The Shield's IP address",
+          "adb_port": "ADB port",
+          "adb_enabled": "Read state over ADB",
+          "adb_store_app_info": "Show title and artist",
+          "protocol_enabled": "Add the Nvidia Remote Protocol",
+          "logcat_events": "Watch app launches over logcat",
+          "adb_command_enabled": "Allow the adb_command action",
+          "jellyfin_entity": "Jellyfin media player",
+          "power_entity": "Power switch"
+        },
+        "data_description": {
+          "host": "The Shield's IP address. Change it only if the Shield moved.",
+          "adb_port": "The ADB port. The standard value is 5555 — change it only if ADB uses a custom port on your network.",
+          "adb_enabled": "Reads now-playing information over ADB from any app. Requires Developer options > Network debugging on the Shield.",
+          "adb_store_app_info": "Shows the title and artist from non-Jellyfin apps. Turn off to show only the app name (privacy mode).",
+          "protocol_enabled": "The all-in-one remote-protocol transport (power, availability, app push and volume readout). It needs the one-time PIN pairing from setup.",
+          "logcat_events": "Uses a second ADB stream to notice app launches the moment they happen. Leave off unless you want the faster app switch.",
+          "adb_command_enabled": "Exposes the adb_command action for this entry's media player. Off by default; it runs arbitrary shell commands on the Shield.",
+          "jellyfin_entity": "The Jellyfin media_player for this Shield. Leave blank to detect it automatically.",
+          "power_entity": "A smart plug switch, if you want reliable on/off detection."
+        }
+      },
+      "receiver": {
+        "title": "Receiver",
+        "description": "The receiver or soundbar this Shield plays through — a media_player, or a plain switch for a soundbar that only turns on and off. Playback turns a switch receiver on when it is off, so no receiver volume scripts are needed for that.",
+        "data": {
+          "receiver_entity": "Receiver",
+          "receiver_input": "Receiver input"
+        },
+        "data_description": {
+          "receiver_entity": "The receiver, soundbar or speaker switch this Shield plays through. Leave blank if there is none.",
+          "receiver_input": "The receiver input the Shield uses, for example 'Shield'. Leave blank if you are not sure."
+        }
+      },
+      "apps": {
+        "title": "Apps",
+        "description": "One app per line: the package id, an equals sign, the name to show, and optionally a pipe and an icon (a picture URL or a camera entity id). Blank uses the built-in list.",
+        "data": {
+          "app_name_map": "App names and icons"
+        },
+        "data_description": {
+          "app_name_map": "One row per app, for example ar.tvplayer.tv=TiviMate|http://192.168.1.10/tivi.png. The name is what the source list, the Current App sensor and the media player show."
+        }
+      },
+      "scripts": {
+        "title": "Scripts",
+        "description": "Optional: run a Home Assistant script instead of the built-in command, per command. Clear a row to go back to the built-in path.",
+        "data": {
+          "remote_command_script": "Script for remote.send_command",
+          "script_turn_on": "turn_on script",
+          "script_turn_off": "turn_off script",
+          "script_volume_up": "volume_up script",
+          "script_volume_down": "volume_down script",
+          "script_volume_set": "volume_set script",
+          "script_volume_mute": "volume_mute script",
+          "script_select_source": "select_source script",
+          "channel_digit_delay": "Delay between channel digits (seconds)",
+          "channel_send_enter": "Send ENTER after channel digits"
+        },
+        "data_description": {
+          "remote_command_script": "Replaces the whole remote.send_command path for this Shield. Leave blank to use the built-in key presses.",
+          "channel_digit_delay": "The gap between the digits of a channel number, 0.05 to 1.0 seconds. Default 0.1.",
+          "channel_send_enter": "Turn on if your channel app needs ENTER after the digits."
+        }
+      }
+    }
+  },
+  "services": {
+    "adb_command": {
+      "name": "ADB command",
+      "description": "Send a raw ADB shell command to the persistent connection of an Nvidia Shield entry (option-gated use).",
+      "fields": {
+        "command": {
+          "name": "Command",
+          "description": "The shell command to run on the device."
+        },
+        "entity_id": {
+          "name": "Entity",
+          "description": "The Nvidia Shield media player to target."
+        }
+      }
+    }
+  },
+  "exceptions": {
+    "invalid_command": {
+      "title": "Empty command",
+      "message": "The command field is empty — nothing was sent."
+    },
+    "unsupported_target": {
+      "title": "Unsupported entity for adb_command",
+      "message": "{entity_id} is not an adb_command participant (its entry must enable the adb_command_enabled option) — command not sent."
+    },
+    "adb_unavailable": {
+      "title": "ADB unavailable",
+      "message": "The ADB connection of {entity_id} is down — command not sent."
+    },
+    "unknown_source": {
+      "title": "Unknown source",
+      "message": "'{source}' is not one of this Shield's apps. Use a name from the source list — the app names from the Apps map, or the built-in list when no map is set."
+    },
+    "command_script_failed": {
+      "title": "Command script failed",
+      "message": "The script configured for {action} ({script}) failed: {error}"
+    }
+  },
+  "entity": {
+    "sensor": {
+      "current_app": {
+        "name": "Current app"
+      },
+      "now_playing": {
+        "name": "Now playing"
+      },
+      "installed_apps": {
+        "name": "Installed apps"
       }
     }
   }

docs/HA_STANDARDS_AUDIT.md

@@ -0,0 +1,238 @@
+# HA integration-standards audit — custom_components/nvidia_shield
+
+Status: **COMPLETE.** Every claim is cited to a developer-docs page fetched during
+this audit (October 2026; the docs site shows "Last updated" stamps of Jun–Oct 2026
+on the pages cited). Companion docs: `MVP_PLAN.md`, `RESEARCH_SHIELD.md`,
+`RESEARCH_IDEAS.md`.
+
+Sources audited (all fetched live):
+[Manifest](https://developers.home-assistant.io/docs/creating_integration_manifest/) (updated 2026-10-06) ·
+[Config flow](https://developers.home-assistant.io/docs/core/integration/config_flow/) ·
+[Options flow](https://developers.home-assistant.io/docs/core/integration/options_flow/) (updated 2026-09-17) ·
+[YAML configuration](https://developers.home-assistant.io/docs/core/integration/yaml_configuration/) (updated 2026-09-17) ·
+[Config entries](https://developers.home-assistant.io/docs/config_entries_index/) (updated 2026-06-19) ·
+[Entity](https://developers.home-assistant.io/docs/core/entity/) ·
+[Internationalization](https://developers.home-assistant.io/docs/internationalization/core/) ·
+[Quality scale](https://developers.home-assistant.io/docs/core/integration-quality-scale/) + [rules](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/) ·
+[Custom actions](https://developers.home-assistant.io/docs/dev_101_services/) ·
+[Diagnostics](https://developers.home-assistant.io/docs/core/integration/diagnostics/) ·
+[Tests file structure](https://developers.home-assistant.io/docs/creating_integration_tests_file_structure/) ·
+[Deprecating (incl. YAML-drop pattern)](https://developers.home-assistant.io/docs/deprecating/) ·
+[ADR-0010](https://github.com/home-assistant/architecture/blob/master/adr/0010-integration-configuration.md) ·
+[Probatio blog](https://developers.home-assistant.io/blog/2026/09/30/probatio-validation-engine/) ·
+[Listener+reload deprecation blog](https://developers.home-assistant.io/blog/2026/05/07/config-entry-listener-together-with-reloading-methods/) ·
+[BrowseMediaSource domain blog](https://developers.home-assistant.io/blog/2026/05/20/browse-media-source-root-class/) ·
+[Central config-flow abort reasons](https://developers.home-assistant.io/blog/2026/09/28/central-config-flow-abort-reasons/) ·
+[Always reload after reauth](https://developers.home-assistant.io/blog/2024/04/25/always-reload-after-successful-reauth-flow/) ·
+[HACS publish requirements](https://hacs.xyz/docs/publish/integration/)
+
+Code audited: `manifest.json`, `strings.json`, `translations/en.json`,
+`__init__.py`, `config_flow.py`, `connection.py`, `media_player.py`,
+`remote.py`, `sensor.py`, `button.py`, `diagnostics.py`, `helpers.py`, tests/,
+repo root (`hacs.json`, README).
+
+Legend: ✅ compliant · ⚠️ partial / should improve · ❌ gap (concrete fix in §3).
+
+---
+
+## Part 1 — Compliance checklist
+
+### 1.1 Manifest ([docs](https://developers.home-assistant.io/docs/creating_integration_manifest/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| `domain`, `name` naming rules | ✅ | `nvidia_shield` / "NVIDIA Shield" — local-only product, no suffix, per manifest doc's name rules |
+| `version` required for custom integrations (AwesomeVersion-compatible) | ✅ | `2026.10.08` (CalVer) — "The version of the integration is required for custom integrations" |
+| `documentation` URL | ✅ | points to the repo; for core submission it must be home-assistant.io (not applicable yet) |
+| `issue_tracker` | ✅ | present (HACS also lists it as required: [HACS publish](https://hacs.xyz/docs/publish/integration/)) |
+| `codeowners` | ✅ | `@notexpectedyet` |
+| `iot_class` from allowed set | ✅ | `local_push` — valid enum value; correct now that both the protocol push and the persistent ADB manager are the primary paths |
+| `config_flow: true` + `config_flow.py` exists | ✅ | |
+| `integration_type` | ⚠️ | **Not set.** Required for core integrations with a config flow; for custom it defaults to `hub` — but we are a single-device-per-entry integration, so it "should generally" be `device`. Explicit is recommended ([manifest doc](https://developers.home-assistant.io/docs/creating_integration_manifest/)). Gap G1 |
+| `requirements` | ✅ | `adb-shell>=0.4.0`, `androidtvremote2>=0.2.0`; "Custom integrations should only include requirements that are not required by Core" — both are non-core deps. Range-style (`>=`) is accepted for custom integrations (hassfest pins core integrations to `==`; range bounds are the pragmatic custom-integration choice) |
+| `dependencies` | ✅ | `[]` — we read Jellyfin state via the *already-configured* jellyfin integration and discover via the user's zeroconf service; neither is required to be a `dependencies` entry (manifest doc: dependencies guarantee the integration loads before setup, not that entries exist). G4 below covers the Jellyfin soft-dependency behavior if we ever import its API |
+| `zeroconf` discovery key | ✅ | `_androidtvremote2._tcp.local.` — exact-service-type entry, not in the "too generic" list |
+| `single_config_entry` | n/a | Multiple Shields are legitimate — do NOT set ([manifest doc](https://developers.home-assistant.io/docs/creating_integration_manifest/)) |
+| `loggers` | ⚠️ | Not set. Recommended so users can raise `adb_shell`/`androidtvremote2` logging under our domain view; `adb_shell` (we wrap) and `androidtvremote2` are exactly the `getLogger` namespaces of our requirements. Gap G1 |
+| `quality_scale` | n/a | Only meaningful for core integrations; custom integrations can still self-audit (§1.9) but shouldn't fake the key ([manifest doc](https://developers.home-assistant.io/docs/creating_integration_manifest/)) |
+| `import_executor` | ✅ | default (true) is right for us |
+| `disabled` | n/a | |
+
+### 1.2 Config flow ([docs](https://developers.home-assistant.io/docs/core/integration/config_flow/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| Extends `ConfigFlow, domain=DOMAIN` in `config_flow.py` | ✅ | |
+| `VERSION` (+ migration for old entries) | ✅ | `VERSION = 2` with `async_migrate_entry` handling v1→v2 and rejecting downgrades (`config_entry.version > 2 → False`) — matches the migration contract ("return False → migration_error") |
+| Unique IDs: stable, string, not user-changeable; `_abort_if_unique_id_configured` | ⚠️ | Protocol path uses the **MAC from the server certificate** (accepted source, [docs list](https://developers.home-assistant.io/docs/core/integration/config_flow/)). But the fallback unique_id is the **`androidtv_entity` entity_id** — entity IDs are user-renameable, which makes them a weak unique_id source (docs list "Device Name / hostname that can be changed" as unacceptable; a renameable entity reference is the same class of problem). Gap G2 |
+| Discovery (zeroconf): set unique ID, abort `already_configured`, update host on IP change | ✅ | `async_step_zeroconf` sets MAC unique_id, aborts duplicates, and updates `protocol_host`/blank `adb_host` on IP change — this is the [gold `discovery-update-info`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/discovery-update-info) behavior already implemented |
+| Discovery steps must never finish without user confirmation | ✅ | first-time discovery chains into the user step |
+| Discovery without unique ID → `_async_handle_discovery_without_unique_id()` | ❌ | not used on the no-MAC path; gap G2 (combine with the unique-id fallback fix) |
+| `is_matching` / `async_has_matching_flow` for ambiguous discovery | ✅-ish | MAC unique_id set in the flow aborts concurrent flows for the same device (docs: "the flow will immediately abort if another flow is in progress for this unique ID"); the MAC-less path is the only exposure (G2) |
+| Errors/aborts via strings keys (`errors["base"]`, `async_abort(reason=...)`) | ✅ | all keys exist in `strings.json` config.error/abort |
+| Interactive pairing (PIN) via flow steps | ✅ | `protocol_pair` uses `async_show_progress`-free two-step pattern (PIN prompt); acceptable — `async_show_progress`/`async_show_progress_done` are for long-running background work |
+| Reauth flow | ⚠️ | Steps exist (`async_step_reauth`/`reauth_confirm`), triggered via `entry.async_start_reauth(hass)` from the manager's invalid-auth callback ([config-flow doc](https://developers.home-assistant.io/docs/core/integration/config_flow/): reauth must update the entry and abort, not create). But `_finish_reauth` uses `async_update_entry` + `async_schedule_reload` — see G3 (deprecated combo) and [always-reload-after-reauth blog](https://developers.home-assistant.io/blog/2024/04/25/always-reload-after-successful-reauth-flow/); prefer `async_update_reload_and_abort(self._get_reauth_entry(), ...)`, and reauth flows need to be linked to a config entry ([2024-11-04 blog](https://developers.home-assistant.io/blog/2024/11/04/reauth-reconfigure-entry-id/) — ours gets it via `self.context["entry_id"]`, the mechanism the blog's helper replaces) |
+| Reconfigure step | ❌ | No `async_step_reconfigure`. The [config-flow doc](https://developers.home-assistant.io/docs/core/integration/config_flow/) says a reconfigure step lets users change **data** that is "not meant to be optional" without an OptionsFlow, and it is a [gold rule](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/reconfiguration-flow). Our hosts live in options, so we are not broken — but G5 documents what a reconfigure step should own (device name + host moves + source toggles) |
+| Config-entry mutation only via `async_update_entry` | ✅ | everywhere ([config entries doc](https://developers.home-assistant.io/docs/config_entries_index/)) |
+| Full test coverage of config_flow.py ([docs](https://developers.home-assistant.io/docs/core/integration/config_flow/): "Integrations with a config flow require full test coverage of all code in config_flow.py") | ⚠️ | tests exist (`test_config_flow_pairing.py`, `test_config_flow_protocol.py`) but "full coverage" (also [bronze rule `config-flow-test-coverage`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/config-flow-test-coverage)) needs a coverage run to confirm every step/branch; G6 |
+
+### 1.3 Options flow ([docs](https://developers.home-assistant.io/docs/core/integration/options_flow/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| `async_get_options_flow(config_entry) -> OptionsFlow()` **without constructor args**; entry via `self.config_entry` | ❌ | Ours: `NvidiaShieldOptionsFlow(config_entry)` stores `self._config_entry` — the old pattern. Current docs' handler takes **no arguments** and reads `self.config_entry`. Gap G3 |
+| Prefill via `self.add_suggested_values_to_schema(SCHEMA, self.config_entry.options)` | ⚠️ | We hand-roll `vol.Optional(key, default=current)` per field — works, but the documented helper is the single schema + suggested-values pattern; also lets us keep ONE static schema instead of conditionally building keys (ours rebuilds the schema dict each render, which also means fields disappear/reappear depending on state — legal but harder to test). G3 |
+| Update listener: `entry.async_on_unload(entry.add_update_listener(...))` | ✅ | registered in `async_setup_entry` ([options doc](https://developers.home-assistant.io/docs/core/integration/options_flow/)) |
+| Reload-on-options: `OptionsFlowWithReload` OR update listener — **not both** | ❌ | We use the update listener (full reload on every options change, including pure-UI tweaks like app map); the current docs offer `OptionsFlowWithReload` for exactly this. Combined with G3 (the flow's own `async_schedule_reload` calls in reauth/zeroconf) this is the deprecated [listener+reloading-methods combo (error from 2026.12)](https://developers.home-assistant.io/blog/2026/05/07/config-entry-listener-together-with-reloading-methods/). Gap G3 |
+
+### 1.4 strings.json / translations ([docs](https://developers.home-assistant.io/docs/internationalization/core/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| `strings.json` adjacent to integration; `translations/en.json` for custom | ✅ | both present, same content |
+| `config` (steps/errors/aborts), `options` sections | ✅ | complete for every key we return |
+| Common-string references (`[%key:common::...%]`) | ⚠️ | e.g. `already_configured`, `reauth_successful` are common abort reasons — now [translated centrally](https://developers.home-assistant.io/blog/2026/09/28/central-config-flow-abort-reasons/) for shared reasons; harmless duplicated, minor cleanup |
+| `title` key | ⚠️ | optional ("fallback to manifest name"); omitted is fine |
+| `entity` section with `translation_key` on named entities | ⚠️ | Sensors use hard-coded English names (`_attr_name = "Current App"`, `"Now Playing"`). Entity doc: "Avoid hard coding a natural language name, use a translated name instead"; [gold rule `entity-translations`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/entity-translations). Gap G7 |
+| `exceptions` section for `HomeAssistantError` translations | ❌ | we raise/log instead of raising translated exceptions in the action handler (see G8; also [raising exceptions](https://developers.home-assistant.io/docs/core/platform/raising_exceptions/) pattern) |
+| `services` section + `services.yaml` | ❌ | `nvidia_shield.adb_command` is registered dynamically with a schema but has **no `services.yaml` and no `services` strings** — see G8. Note [2025-10-24 blog](https://developers.home-assistant.io/blog/2025/10/24/service-web-api-changes/): service translations were removed from the WebSocket/REST service list — descriptions now live only in `services.yaml`/strings, making them required for frontend display |
+| `issues` section (repairs) | n/a | no repair issues yet (gold [`repair-issues`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/repair-issues) — G9 suggestion for the ADB-unpaired state) |
+
+### 1.5 Entity standards ([Entity doc](https://developers.home-assistant.io/docs/core/entity/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| `has_entity_name = True` ([mandatory for new integrations](https://developers.home-assistant.io/docs/core/entity/)) | ✅ | all entities |
+| Main-feature entity: `_attr_name = None` (friendly_name = device name) | ✅ | media_player and remote |
+| Sub-entities named without device/type prefix | ✅-ish | "Current App", "Now Playing", "Pair ADB" — right shape, but hard-coded (G7) |
+| `unique_id` on every entity ([bronze `entity-unique-id`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/entity-unique-id)) | ✅ | `{DOMAIN}_{entry.entry_id}_{key}` — stable, not user-configurable |
+| `device_info` on all entities (automatic device registration) | ✅ | every platform; one device per entry keyed by `entry.entry_id`. ⚠️ model is hard-coded "Shield TV" — the protocol's `device_info` (model/vendor/sw_version) is available and populating `model`/`model_id`/`sw_version` from it is a cheap upgrade ([`model_id` added 2024-07](https://developers.home-assistant.io/blog/2024/07/16/model-id-device-info/)). G10 |
+| `should_poll` — push entities notify via `async_schedule_update_ha_state` / write | ✅ | `_attr_should_poll = False` everywhere + explicit `async_write_ha_state` on store events ([entity doc, subscribing pattern](https://developers.home-assistant.io/docs/core/entity/)) |
+| `available` ([silver `entity-unavailable`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/entity-unavailable)) | ✅ | media_player/remote/sensors derive from manager health |
+| Feature flags via `MediaPlayerEntityFeature` enum (no magic numbers — [deprecation](https://developers.home-assistant.io/blog/2023/12/28/support-feature-magic-numbers-deprecation/)) | ✅ | TURN_ON|TURN_OFF|VOLUME_STEP|VOLUME_MUTE|PLAY_MEDIA|BROWSE_MEDIA + playback features; **no `VOLUME_SET`** — correct per the protocol's capability ([RESEARCH_IDEAS §2 C-VOL](RESEARCH_IDEAS.md)) |
+| States via current `MediaPlayerState` enum | ✅ | imports the component enum; `STANDBY` not used ([deprecated 2025-07](https://developers.home-assistant.io/blog/2025/07/16/media-player-standby-state-deprecation/)) — our asleep→IDLE mapping is the compliant choice |
+| `entity_category` ([gold `entity-category`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/entity-category)) | ⚠️ | "Pair ADB" button is a device-configuration action → `EntityCategory.CONFIG` is the documented fit; sensors are primary. G11 |
+| `entity_registry_enabled_default` for noisy entities ([gold](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/entity-disabled-by-default)) | ⚠️ | Now Playing is chatty (per-track state changes); consider `False` for the least-used mirror sensors only — judgment call, low priority |
+| `_unrecorded_attributes` for frequently-changing attributes ([entity doc](https://developers.home-assistant.io/docs/core/entity/)) | ⚠️ | `extra_state_attributes` (media_player.py:804) carries session/transport details; media_player already unrecords its domain attributes, but our custom attributes that change with every poll should be listed. G12 |
+| Icon property discouraged vs icon translations ([entity doc](https://developers.home-assistant.io/docs/core/entity/)) | ⚠️ | static `_attr_icon` is the discouraged-but-legal form; app-art uses `entity_picture` (fine). Icon translations only matter for gold |
+
+### 1.6 Setup / unload / lifecycle ([config entries doc](https://developers.home-assistant.io/docs/config_entries_index/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| `entry.runtime_data` for runtime objects ([bronze `runtime-data`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/runtime-data)) | ✅ | `ShieldConnectionManager` on `entry.runtime_data` |
+| `async_forward_entry_setups` + platform `async_setup_entry` | ✅ | |
+| `async_unload_entry` forwards unload + cleans up listeners/connections | ✅ | manager stopped, hass.data popped; entities unsubscribe in `async_will_remove_from_hass` |
+| `EVENT_HOMEASSISTANT_STOP` closes connections | ✅ | via `entry.async_on_unload(bus.async_listen_once(...))` |
+| `hass.data[DOMAIN][entry_id]` usage | ⚠️ | we still store the entry there for cross-module lookups; fine, but the manager on `entry.runtime_data` makes most consumers redundant — trim opportunistically |
+| Test-before-setup ([bronze](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/test-before-setup)) | ⚠️ deliberate | We intentionally never raise `ConfigEntryNotReady` (ADB may be unpaired; manager retries in background). This is a justified deviation — the rule's goal (avoid "unknown error" states) is met by the passive-start design + Pair ADB button + protocol `keep_reconnecting` — but it should be **documented** (e.g. a `quality_scale.yaml`-style note or README paragraph). G13 |
+
+### 1.7 Actions (services) ([docs](https://developers.home-assistant.io/docs/dev_101_services/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| Register actions in `async_setup` — "Service actions should always be registered" so they exist even with no loaded entries | ❌ | `adb_command` is registered lazily from the media_player platform when the first entry opts in, and removed when the last unloads. That violates the documented posture (always registered; the doc's rationale: editable/validatable automations + informative errors). Gap G8 |
+| `services.yaml` describing fields/target | ❌ | missing entirely (G8) |
+| Names/descriptions from translations ([i18n doc](https://developers.home-assistant.io/docs/internationalization/core/), `services` key) | ❌ | none (G8) |
+| Target the right level; **target must not be optional** ("Do not implement a default target when none is specified") | ⚠️ | our schema has `Optional("entity_id")` with implicit all-entries fallback — non-compliant targeting. G8 |
+| Errors raised as exceptions with translations ([silver `action-exceptions`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/action-exceptions); [exceptions i18n](https://developers.home-assistant.io/docs/internationalization/core/)) | ❌ | logs warnings on failure instead of raising `ServiceValidationError(translation_domain=...)`. G8 |
+
+### 1.8 Diagnostics ([docs](https://developers.home-assistant.io/docs/core/integration/diagnostics/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| `async_get_config_entry_diagnostics` | ✅ | correct module-level function (diagnostics.py — previously misplaced inside media_player.py and fixed per t20/t21 finding) |
+| Redaction of sensitive data via `async_redact_data` | ⚠️ | we ship a hand-rolled `_redact` with marker matching; the doc points at the `async_redact_data` helper with an explicit TO_REDACT list — the helper is the convention (defensive marker-redaction is a reasonable extra on top, but config fields like host should use the helper list). G14 |
+| Device diagnostics ([gold `diagnostics`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/diagnostics)) | ⚠️ | config-entry only; device diagnostics is the gold-tier add (single-device integration → mostly redundant, note why if skipped) |
+
+### 1.9 Tests ([tests file structure](https://developers.home-assistant.io/docs/creating_integration_tests_file_structure/))
+
+| Requirement | Us | Notes |
+|---|---|---|
+| Tests per domain under `tests/`, `conftest.py`, `test_init.py` for setup/reload/unload | ⚠️ | `tests/` exists with focused files; there is no `test_init.py` covering setup/reload/unload/migration of the entry (the structure doc names `test_init.py` for exactly that). G6 |
+| Config-flow full coverage | ⚠️ | see G6 |
+| Coverage bar for silver: >95% ([`test-coverage`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/test-coverage)) | ⚠️ | run pytest --cov to baseline; vendored `ha_adb_common` counts toward it |
+
+### 1.10 Documentation / quality scale ([quality scale](https://developers.home-assistant.io/docs/core/integration-quality-scale/), [rules](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/))
+
+**Bronze** (baseline for all new integrations): config-flow ✅ · entity-unique-id ✅ · has-entity-name ✅ · runtime-data ✅ · test-before-configure ✅ (both pairing steps test the connection) · unique-config-entry ✅ (MAC path) · action-setup ❌ (G8) · config-flow-test-coverage ⚠️ (G6) · brands ⚠️ (G15: no `brand/` icon in repo; HACS requires brand assets) · docs rules (G16: README has setup docs; needs explicit removal instructions + action descriptions to satisfy `docs-high-level-description`, `docs-installation-instructions`, `docs-removal-instructions`, `docs-actions`).
+
+**Silver** adds: config-entry-unloading ✅ · reauthentication-flow ✅ (with G3 fix) · entity-unavailable ✅ · log-when-unavailable ⚠️ (verify we log once per transition, not every retry — the manager's backoff looks right; add a test) · parallel-updates ⚠️ (entities are push; declare/verify `PARALLEL_UPDATES` where the platform defaults matter — G12 note) · action-exceptions ❌ (G8) · test-coverage ⚠️ (G6) · docs-configuration-parameters ⚠️ (README should describe every option; strings.json is the source of truth today) · integration-owner ✅ (codeowner declared).
+
+**Gold** adds (for reference, not required): discovery ✅ (+update-info ✅) · devices ✅ · diagnostics ✅ · entity-category/entity-translations/icon-translations ❌ (G7/G11) · reconfiguration-flow ❌ (G5) · repair-issues ❌ (G9) · extensive docs ❌ (G16).
+
+## Part 2 — Optional YAML configuration alongside the config flow: current doctrine and canonical pattern
+
+### 2.1 The rule
+
+- [ADR-0010](https://github.com/home-assistant/architecture/blob/master/adr/0010-integration-configuration.md) (binding): *"Integrations that communicate with devices and/or services are only configured via the UI. In rare cases, we can make an exception."*
+- Current [YAML configuration doc](https://developers.home-assistant.io/docs/core/integration/yaml_configuration/): same rule restated — *"Integrations that communicate with devices and/or services are configured via a config flow. In rare cases, we can make an exception. Existing integrations that should not have a YAML configuration are allowed and encouraged to implement a configuration flow and remove YAML support. **Changes to existing YAML configuration for these same existing integrations will no longer be accepted.**"* Also: *new integrations must not use platform-key YAML* (ADR-0007); any YAML must live under the integration's own domain key.
+- So: for our device integration, YAML is allowed **only** as an *import source* that ends in a real config entry (`source: import`), never as a parallel runtime configuration path. The `import` step name is [reserved for exactly this](https://developers.home-assistant.io/docs/core/integration/config_flow/).
+
+### 2.2 The as-documented pattern ([deprecating doc](https://developers.home-assistant.io/docs/deprecating/), "Dropping YAML support for an integration")
+
+The current docs' canonical wiring (shown there in the context of deprecating YAML, and it is the same seeding mechanism an *optional* import uses):
+
+1. **`__init__.py`: `async_setup(hass, config)` reads the domain key and seeds the import flow.** The exact documented snippet:
+
+```python
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
+    """Set up the integration."""
+    if DOMAIN not in config:
+        return True
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": SOURCE_IMPORT}, data=config[DOMAIN]
+    )
+    ...
+```
+
+(`SOURCE_IMPORT` from `homeassistant.config_entries`; this is the current documented form — the deprecated `discovery` step and platform-key imports are gone.)
+
+2. **`config_flow.py`: `async_step_import` (step name `import`) validates the YAML dict, reuses the same entry-creation path as `async_step_user` (unique_id, `_abort_if_unique_id_configured`, `_create_entry`).** Resulting entries carry `source: import` and behave exactly like UI entries thereafter — options flow, reload, unload all apply. The [config-flow doc](https://developers.home-assistant.io/docs/core/integration/config_flow/) reserves the step name; [config entries doc](https://developers.home-assistant.io/docs/config_entries_index/) treats imported entries as normal config entries.
+
+3. **Add a `CONFIG_SCHEMA`** for the domain-key YAML ([YAML configuration doc](https://developers.home-assistant.io/docs/core/integration/yaml_configuration/), CONFIG_SCHEMA section) using probatio/vol schema, and re-use the config-flow validation so YAML and UI stay consistent.
+
+4. If YAML support is ever *dropped* (not our case), the documented procedure is: import step + the core `deprecated_yaml` repair issue with `HOMEASSISTANT_DOMAIN`, `breaks_in_ha_version`, then leave `cv.config_entry_only_config_schema(DOMAIN)` behind ([deprecating doc](https://developers.home-assistant.io/docs/deprecating/)).
+
+### 2.3 What cannot be imported (honest limits)
+
+- **Interactive pairing cannot happen during import.** An import step produces a config entry from static YAML data — it cannot wait for a human to approve an ADB prompt or type a PIN shown on the Shield. Our design already anticipates this: **ADB key approval is intentionally decoupled from setup** (the manager auto-connects only when a key exists; the Pair ADB button + flow step handle approval), so an imported entry can start unpaired and become functional after the user pairs. For the **protocol (PIN) pairing** there is currently no post-setup trigger — an imported entry with `protocol_enabled` cannot complete pairing without re-running the config flow. Options: keep protocol pairing out of the YAML surface (recommended), or add a repair issue/button that starts a reauth-style protocol-pair flow for unpaired entries (G9).
+- **Discovery-derived values (MAC unique_id) cannot come from YAML.** The import can set a *user-chosen* unique_id (e.g. the entity reference) or none; a MAC-less entry weakens duplicate-protection (see G2) — the import should require the `androidtv_entity` reference or an explicit `unique_id`-grade value.
+- **`source: import` entries show in the UI** and can be migrated to `source: user` only by deletion + re-add; document that YAML edits require deleting/re-importing (or honoring `async_update_entry` on re-import with `reason: options_updated` style updates — simplest is abort `already_configured` on re-import, matching most core integrations).
+
+### 2.4 HACS / custom-integration policy view
+
+- [HACS publish requirements](https://hacs.xyz/docs/publish/integration/) do not mention YAML at all — they require repo structure (one integration under `custom_components/`), the six manifest keys (we have all: domain, documentation, issue_tracker, codeowners, name, version), and **brand assets** (an `icon.png` under `brand/` or the brands repo — we currently lack it, G15). HACS never *forbids* an import path; it is simply orthogonal.
+- The HA project position ([ADR-0010](https://github.com/home-assistant/architecture/blob/master/adr/0010-integration-configuration.md)) is that contributors may drop YAML to reduce burden "power to our contributors" — i.e. no project-level pressure to provide YAML for device integrations, and the quality scale contains no YAML rule. **Recommendation: treat YAML import as optional sugar; do not build it for the MVP** — the UI flow already covers discovery + pairing, and the import path buys only static-foreignKey convenience at the cost of the G2/G9 caveats.
+
+## Part 3 — Gap list (concrete, file-anchored)
+
+Ordered by severity; each item names the file(s) and the change.
+
+| # | Severity | Gap → Fix |
+|---|---|---|
+| G3a | **High (breaks 2026.12)** | Deprecated listener+reloading combo: `config_flow.py` `_finish_reauth` (`async_update_entry` + `async_schedule_reload`) and the zeroconf host-update path (`async_update_entry` + `async_schedule_reload`) both double-reload because `__init__.py` registers `entry.add_update_listener(_async_update_listener)` (full reload). Per the [2026-05-07 blog](https://developers.home-assistant.io/blog/2026/05/07/config-entry-listener-together-with-reloading-methods/): in `config_flow.py` replace reauth's pair with `self.async_update_reload_and_abort(self._get_reauth_entry(), data_updates={...})`; for zeroconf use `async_update_entry` only and let the listener reload (or `reload_on_update=False` on `_abort_if_unique_id_configured`). Also see [always-reload-after-reauth](https://developers.home-assistant.io/blog/2024/04/25/always-reload-after-successful-reauth-flow/) |
+| G3b | **High (deprecation)** | `config_flow.py` `NvidiaShieldOptionsFlow(config_entry)`: constructor must take no args — `async_get_options_flow(config_entry) -> NvidiaShieldOptionsFlow()` reading `self.config_entry` ([options flow doc](https://developers.home-assistant.io/docs/core/integration/options_flow/)); convert hand-rolled defaults to `add_suggested_values_to_schema`; consider `OptionsFlowWithReload` and dropping the update listener (or keep listener for partial reloads of non-structural options — but then never schedule reloads inside the flow) |
+| G8 | High (silver) | `media_player.py` `_adb_command_service_ensure/_maybe_remove` + missing files: move registration to `__init__.py` `async_setup` (always registered, with `option-dependent` handler that no-ops/logs when no entry opted in); add `services.yaml` (fields: `command` required, `entity_id` **required** target — [targeting rules](https://developers.home-assistant.io/docs/dev_101_services/): target must not be optional; consider `device_id`/config_entry targeting instead of entity); add `strings.json` `services` section (name/description/fields) + `icons.json` service icon; replace warning-logs with `ServiceValidationError(translation_domain=DOMAIN, translation_key=...)` + `exceptions` section ([action-exceptions](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/action-exceptions), [exceptions i18n](https://developers.home-assistant.io/docs/internationalization/core/)) |
+| G2 | High | Unique-ID source fallback: `config_flow.py` uses `androidtv_entity` (entity_id) as unique_id when no MAC exists — renameable/user-changeable → weak. Fix: on the protocol path always MAC; on ADB-only setups without protocol, use `await self._async_handle_discovery_without_unique_id()`-grade handling for discovery, and for manual setup keep the entity-based ID but document the rename caveat, or derive from the device's MAC via the entity's device registry entry (device registry holds `CONNECTION_NETWORK_MAC`) |
+| G1 | Medium | `manifest.json`: add `"integration_type": "device"`, `"loggers": ["adb_shell", "androidtvremote2"]` ([manifest doc](https://developers.home-assistant.io/docs/creating_integration_manifest/)) |
+| G6 | Medium | Tests: add `tests/test_init.py` (setup/reload/unload/migration) per the [tests structure doc](https://developers.home-assistant.io/docs/creating_integration_tests_file_structure/); run coverage against `config_flow.py` to satisfy [config-flow-test-coverage](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/config-flow-test-coverage) |
+| G7 | Medium | Entity naming: sensors `sensor.py` "Current App"/"Now Playing" — replace `_attr_name` with `translation_key` + `entity.sensor.*` names in `strings.json` ([entity naming](https://developers.home-assistant.io/docs/core/entity/), [entity-translations](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/entity-translations)); button "Pair ADB" likewise |
+| G9 | Medium | Unpaired/needs-pairing UX: raise a repair issue (gold [`repair-issues`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/repair-issues)) with an `issues` strings section when the protocol transport is enabled but unpaired, linking to the reauth/pair flow — this also gives YAML-imported entries a pairing path (see §2.3) |
+| G10 | Low | `media_player.py` `device_info`: populate `model`/`model_id`/`sw_version` from the protocol `device_info` push (available post-pairing; [model_id blog](https://developers.home-assistant.io/blog/2024/07/16/model-id-device-info/)) |
+| G14 | Low | `diagnostics.py`: switch `_redact` to `async_redact_data` with an explicit TO_REDACT list for `entry.data/options` ([diagnostics doc](https://developers.home-assistant.io/docs/core/integration/diagnostics/)), keeping the marker-based defense as a second layer |
+| G11 | Low | `button.py`: `_attr_entity_category = EntityCategory.CONFIG` on Pair ADB ([entity-category rule](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/entity-category)) |
+| G12 | Low | `media_player.py`: declare `_unrecorded_attributes` (class attribute) for fast-changing custom attributes; verify silver `log-when-unavailable` once-per-transition behavior in `connection.py` with a test ([entity doc](https://developers.home-assistant.io/docs/core/entity/), [log-when-unavailable](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/log-when-unavailable)) |
+| G16 | Low | Docs for bronze: README needs a removal section + per-action documentation ([docs-removal-instructions](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/docs-removal-instructions), [docs-actions](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/docs-actions)) |
+| G15 | Low | Brand assets: add `brand/icon.png` to the repo (HACS requirement, [HACS publish](https://hacs.xyz/docs/publish/integration/)) and add the integration to the [brands repo](https://developers.home-assistant.io/docs/creating_integration_brand/) |
+| G17 | Info | Schema library: `config_flow.py`/`media_player.py` import `voluptuous` — **no change required** ([Probatio blog](https://developers.home-assistant.io/blog/2026/09/30/probatio-validation-engine/): HA aliases the import; voluptuous is no longer installed but the alias resolves; the ban is core-only). New code may import `probatio` directly; opportunistically migrate |
+| G18 | Info | BrowseMedia: `media_player.py` `async_browse_media` constructs `BrowseMediaSource` without `domain` — `domain` is now a **required** `str` on `BrowseMediaSource.__init__` ([2026-05-20 blog](https://developers.home-assistant.io/blog/2026/05/20/browse-media-source-root-class/)). Verify the media_player-component helper we import and pass `domain=DOMAIN` (children) / the integration domain (root); our `media_content_type="apps"` root is not a `RootBrowseMediaSource` case |
+| G5 | Info | Reconfigure step (gold [`reconfiguration-flow`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/reconfiguration-flow)): a future `async_step_reconfigure` should own device name + host overrides + source toggles, using `async_update_reload_and_abort(self._get_reconfigure_entry(), ...)` and `_abort_if_unique_id_mismatch` ([config flow doc](https://developers.home-assistant.io/docs/core/integration/config_flow/)) |
+| G4 | Low | Jellyfin auto-detect silently fails when the Jellyfin integration is not yet configured (`config_flow.py` `_find_jellyfin_entity` finds no entities). We deliberately do not list `jellyfin` in `dependencies` (nothing breaks without it); document the ordering caveat in the README instead ([manifest doc, dependencies semantics](https://developers.home-assistant.io/docs/creating_integration_manifest/)) |
+| G13 | Low | Document the deliberate deviation from [test-before-setup](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/test-before-setup): a README paragraph (or an exempted-rule note) explaining that entries start passively without `ConfigEntryNotReady` because ADB may be unpaired, with the Pair ADB button + protocol `keep_reconnecting` + reauth as the recovery UX |
+| G5 | Info | Reconfigure step (gold [`reconfiguration-flow`](https://developers.home-assistant.io/docs/core/integration-quality-scale/rules/reconfiguration-flow)): a future `async_step_reconfigure` should own device name + host overrides + source toggles, using `async_update_reload_and_abort(self._get_reconfigure_entry(), ...)` and `_abort_if_unique_id_mismatch` ([config flow doc](https://developers.home-assistant.io/docs/core/integration/config_flow/)) |
+### Explicitly OK as-is (no action)
+
+- `iot_class: local_push`, requirement ranges, zeroconf entry, `version` (CalVer), `config_flow`, repo structure for HACS (one integration dir), `hacs.json`, devices per entry, feature-flag enums, `MediaPlayerState` usage, `entry.runtime_data`, unload/stop lifecycle, migration versioning shape, entity availability model, and the deliberate no-`ConfigEntryNotReady` design (document it, G13).
+- Voluptuous imports remain valid through the probatio alias (G17).

docs/MVP_PLAN.md

@@ -110,13 +110,17 @@ make logcat a true push stream over `adb_shell` for MVP.**
 
 ### Why not pure logcat push (yet)
 
-`adb_shell`'s `AdbDeviceTcpAsync.shell()` is **request → full-response**; there is no
-incremental/streaming read API on the stable surface. Running `exec logcat` blocks
-forever. A true stream means either hacking adb_shell internals (fragile across its
-releases) or adding a dependency (violates constraints). Also, logcat does not
-reliably carry *playback state* changes for third-party apps — it reliably carries
-**foreground/app lifecycle** events (verified R8: `ActivityTaskManager: START u0
-{… cmp=<pkg>/<activity>}` on every app open, including home-button → launcher).
+CORRECTION (C-STREAM, spike-verified on our pinned range): `adb_shell` 0.4.4
+**does** ship `streaming_shell` — a generator yielding each line of output — on
+both the sync `AdbDevice` and async `AdbDeviceAsync` (async needs the tiny
+`aiofiles` + `async_timeout` extras, both already HA-ecosystem staples). So a
+true logcat push stream needs neither internals hacks nor a new major
+dependency. What keeps the hybrid design honest is *device behavior*, not the
+library: logcat does not reliably carry *playback state* for third-party apps —
+it reliably carries **foreground/app lifecycle** events (verified R8:
+`ActivityTaskManager: START u0 {… cmp=<pkg>/<activity>}` on every app open,
+including home-button → launcher). Streaming stability over multi-hour
+connections still needs a device spike before we make it the sole trigger.
 
 ### The hybrid design (target architecture)
 
@@ -128,8 +132,10 @@ entry.runtime_data = ShieldConnectionManager
   ├─ transport B: ADB (adb_shell) — persistent socket, no re-handshake per command
   ├─ watchdog task: health ping + exponential backoff reconnect (5s→…→300s cap)
   ├─ trigger listener: foreground-change events
-  │    (logcat -d -T1 ActivityTaskManager delta snapshots ~2–5 s cadence;
-  │     Phase 3 option: internals streaming if adb_shell ever supports it)
+  ├─ trigger listener: foreground-change events
+  │    Phase 1: logcat delta snapshots ~2–5 s cadence (safe default)
+  │    Phase 2+: streaming_shell logcat stream on a dedicated connection
+  │    (library support verified on 0.4.4; pending device stability spike)
   ├─ on trigger → cheap `dumpsys activity activities` (mResumedActivity confirm)
   │    → if changed → `dumpsys media_session` fetch
   ├─ heartbeat: `dumpsys media_session` every ~15–30 s while awake (safety net)
@@ -267,10 +273,14 @@ Files:
 - `remote.py` (new platform) — protocol-backed remote entity (port of core:
   SHORT/START_LONG/END_LONG command prefixes, num_repeats/delay/hold, activity =
   current app).
-- `media_player.py` — command routing switches to protocol keys; volume gains
-  absolute level (VOLUME_SET) + real mute state; availability and is_on come
+- `media_player.py` — command routing switches to protocol keys; volume gains a
+  push-based level readout + real mute state (NOTE: androidtvremote2 has NO
+  absolute volume set — HA core closed volume_set for androidtv_remote as
+  not_planned; only VOLUME_STEP | VOLUME_MUTE are claimed, level comes from
+  volume_info push); availability and is_on come
   from protocol callbacks; `_is_power_on` ladder: protocol is_on → ADB wake →
   plug off.
+  plug off.
 - `media_player.py` `async_play_media` — §7 channel port via protocol
   `send_key_command` digits (0.1 s delay) + task-cancel guard; ADB keyevent
   fallback when the protocol is down.
@@ -329,16 +339,23 @@ tests cover all ladder branches.
 
 Files:
 - Deep links — now cheap: `media_type: app/url` → protocol
-  `send_launch_app_command` (port of core pattern) + BrowseMedia app directory;
+  `send_launch_app_command` (port of core pattern; the client auto-prefixes
+  `market://launch?id=` for bare package ids — C-LAUNCH, verified in the client
+  source, so no extra branch for app-id vs URI) + BrowseMedia app directory;
   per-app `am start` extras via ADB only for apps the protocol can't launch
-  (data-driven map in const).
+  (data-driven map in const; discovery recipe via
+  `adb shell cmd package dump <pkg>` in RESEARCH_IDEAS.md).
+- Channel keys: add `channel_up`/`channel_down` (proto keycodes 166/167 —
+  trivial, no UI needed) alongside the §7 digit path.
 - Options: apps name/icon map editor (core androidtv_remote pattern), digit
   delay, IME toggle, privacy scope; finish config entry migration if needed.
 - Zeroconf discovery (`_androidtvremote2._tcp`) — auto-fill host, update entry on
   IP change; `manifest.json` gains the `zeroconf` integration dependency.
 - `adb_command` service + diagnostics (port androidtv patterns).
-- Optional: logcat streaming via adb_shell internals if verified stable (behind
-  an option flag); otherwise keep snapshot approach.
+- Optional: streaming_shell logcat stream as the trigger source (library
+  support verified on adb-shell 0.4.4, spike at goal round 9; pending a
+  multi-hour device stability spike) behind an option flag; default stays
+  delta snapshots.
 - Trim: fold Current App sensor if StateStore covers it; drop
   `running_apps_from_sessions` legacy; remove transitional external-entity code.
 

docs/RESEARCH_IDEAS.md

@@ -0,0 +1,180 @@
+# Research ideas for ha-nvidia-shield (features, patterns, TiviMate)
+
+Status: **COMPLETE.** Companion docs: `MVP_PLAN.md`, `RESEARCH_SHIELD.md`.
+Method: primary sources first — library/integration source code (androidtvremote2,
+adb_shell, HA core), HA core GitHub issues/PRs, home-assistant.io integration docs,
+home-assistant.io action docs, and community threads. Citations are inline markdown
+links. Note: HA's Action *classes* (`MediaPlayerEntityFeature.*`) are what we set in
+code; HA's *Actions* (`media_player.play_media` etc.) are what users call.
+
+---
+
+## 1. What users actually request (from HA core issues, community threads, library issues)
+
+| # | Request | Source | Take for our MVP |
+|---|---|---|---|
+| U1 | Absolute volume set on Android TV players — `media_player.volume_set` repeatedly requested; HA core androidtv_remote closed it **not_planned** | [core#176505](https://github.com/home-assistant/core/issues/176505) | High demand, but the protocol v2 proto has **no usable volume-set primitive shipped** (it reports volume; see C-VOL). Our Phase 2 now ships `VOLUME_STEP|MUTE` + level readout (captain accepted; plan already fixed). If demand ever recurs, the honest fallback is an ADB `input keyevent KEYCODE_VOLUME_*` step loop behind a helper script — **not** a fake supported feature |
+| U2 | Launching *any* installed app (not just deep-linkable ones) and retrieving the installed-app list | [androidtvremote2#17](https://github.com/tronikos/androidtvremote2/issues/17) | The official NVIDIA Shield app *does* retrieve the app list over another service; androidtvremote2 accepted `market://launch?id=<pkg>` as the app-launch workaround (now built into `send_launch_app_command`, see C-LAUNCH). App-list *retrieval* is not implementable through this client's protocol surface — a data-driven, options-defined app map is the right MVP substitute (already in plan) |
+| U3 | Text/IME entry (typing into search boxes); behavior **depends on the app and on whether the on-screen keyboard is open** (one-at-a-time chars get replaced in Spotify; whole-string send works) | [androidtvremote2#32](https://github.com/tronikos/androidtvremote2/issues/32) | Library supports `send_text` but behavior is app-dependent. Keep the IME option **default off** (as planned) and document the qualifier rather than trying to be clever |
+| U4 | Voice search / voice commands | [androidtvremote2#28](https://github.com/tronikos/androidtvremote2/issues/28) — closed; the library now ships `start_voice()`/`VoiceStream`, gated by `enable_voice` and device feature support | Implemented in the lib (PCM 16-bit mono 8 kHz streamed as `RemoteVoiceBegin/Payload/End`). Post-MVP only; note exists so Phase 4 does not re-research |
+| U5 | Deep-link launching of apps into specific sections (community guide table with ~60 known app URLs, plus how to discover one via `adb shell cmd package dump PACKAGE` and manifest string resolvers) | [deep-link guide](https://community.home-assistant.io/t/android-tv-remote-app-links-deep-linking-guide/567921/) | Directly validates Phase-4 deep links; `send_launch_app_command` accepts either a deep link or a bare package id (see C-LAUNCH). The guide's discovery recipe (`cmd package dump <pkg>`, grep `<data`, resolve `@string/deeplink_schema`) is worth copying into our docs/contributor workflow |
+| U6 | BrowseMedia containing installed apps / activity list so users can launch apps from the media panel instead of scripts | [core#117126](https://github.com/home-assistant/core/pull/117126) (androidtv_remote: "Implement Android TV Remote browse media with apps and activity list") | Validates Phase-4 BrowseMedia app directory; can be built from our own running_apps data or an options-defined list (no protocol app-list needed) |
+| U7 | Channel-by-number play_media + channel up/down keys on streaming players (Roku, Bravia) | [Roku docs](https://www.home-assistant.io/integrations/roku/), [Bravia docs](https://www.home-assistant.io/integrations/braviatv/) | `play_media(media_content_type: channel)` is the canonical way every TV integration does tuning (Roku, Bravia); our §7 digit path matches. Bonus Roku/Bravia idea: expose `channel_up`/`channel_down` as remote commands (protocol `KEYCODE_CHANNEL_UP=166` / `KEYCODE_CHANNEL_DOWN=167` — in the proto, no new work) |
+| U8 | TiviMate: start it and switch to a specific channel from an HA automation | [community thread](https://community.home-assistant.io/t/automation-start-tivimate-and-change-to-specific-channel/859344) (2025, active) | **Exactly our §7 play_media(channel) requirement.** The working recipe there: `remote.turn_on` with `activity: ar.tvplayer.tv` → delay ~7 s (app cold-start) → `media_player.play_media` with `media_content_type: channel` / `media_content_id: "1"` — note the wait; our play_media should not promise cold-start-to-channel in one shot (we don't own app launch speed). Follow-up request in the thread shows demand for tuning VOD/series pages too (unresolved anywhere) |
+| U9 | Shield app-launcher cards for wall-panel remotes (Firemote adds TiviMate/SmartTube shortcuts); Harmony-style activity switching | [HA-Firemote#48](https://github.com/PRProd/HA-Firemote/issues/48), [Shield launcher blueprint](https://community.home-assistant.io/t/shield-app-launcher-for-harmony-remote/858225) | QoL signal for Phase-4 apps editor + `source_list`; also shows app-name→icon mapping is what users iterate on (supports data-driven app map + icon support) |
+| U10 | Firemote / universal-remote-card users must hand-define every app shortcut because the Shield integration exposes no app directory | [universal-remote-card discussion](https://github.com/Nerwyn/universal-remote-card/discussions/52) | Independent confirmation of U6/U9 demand; [TiviMate + SmartTube shortcut request](https://github.com/PRProd/HA-Firemote/issues/48) |
+
+Also verified from an independent direction: [MediaSession2MQTT#4](https://github.com/cbeyls/MediaSession2MQTT/issues/4)
+confirms TiviMate "doesn't capture anything" for notification-based playback
+detection on the Shield — consistent with our R2 no-media-session finding, and a
+reminder that projects tried and failed to get sessions out of TiviMate
+(see §5).
+
+## 2. androidtvremote2 capabilities we are not using (verified from [library source](https://github.com/tronikos/androidtvremote2))
+
+Source of truth read: [`androidtv_remote.py`](https://github.com/tronikos/androidtvremote2/blob/main/src/androidtvremote2/androidtv_remote.py),
+[`remotemessage.proto`](https://github.com/tronikos/androidtvremote2/blob/main/src/androidtvremote2/remotemessage.proto),
+[`TvKeys.txt`](https://github.com/tronikos/androidtvremote2/blob/main/TvKeys.txt).
+
+| Capability | API | MVP relevance |
+|---|---|---|
+| Key codes + length variants | `send_key_command(key, direction)` — `SHORT`/`START_LONG`/`END_LONG`; accepts int or `"KEYCODE_..."/"POWER"` strings; any code from the 300-strong proto enum | Remote entity port (Phase 2) matches core's SHORT/START_LONG/END_LONG design |
+| **Text / IME** | `send_text(text)`; also `send_key_command("text:<message>")` routes into send_text | Phase-2 IME option (default off). Known quirk: append-vs-replace inconsistency (#32) — document, don't ship cleverness |
+| App launch | `send_launch_app_command(app_link_or_app_id)` — **auto-prefixes `market://launch?id=`** when the value has no URL scheme (C-LAUNCH) | `play_media(url)`/`play_media(app)` (Phase 4): bare package names work with zero extra code; deep links like `plex://` pass through unchanged |
+| Push callbacks | `add_is_on_updated_callback`, `add_current_app_updated_callback`, `add_volume_info_updated_callback`, `add_is_available_updated_callback` | Exactly the manager-listener pattern Phase 1/2 needs; `current_app` push is the Phase-3 primary foreground signal |
+| Volume info (read-only) | `volume_info` → `(level, max, muted)` pushed on change | Real mute state + numeric level readout in Phase 2 — **but no `volume_set`**; see C-VOL |
+| Reconnect + reauth distinction | `keep_reconnecting(invalid_auth_callback=<fn>)` with internal exponential backoff 0.1 s → 30 s cap; raises `InvalidAuth` when certs are rejected (device hard reset) | Feeds the transport design; **one owner per transport** — don't build a competing watchdog for the protocol socket; `InvalidAuth` → reauth flow, not retry storm |
+| Device info | `device_info` (model, vendor, package_name, app_version) | Free diagnostics data for Phase 4 (and a nice setup sanity check) |
+| App-list push | **Not implemented and not in the protocol this client speaks** ([#17](https://github.com/tronikos/androidtvremote2/issues/17)). Verified against the full proto: the only app-ish messages are `RemoteAppInfo` (IME context) and `RemoteAppLinkLaunchRequest` — no app-list leafs | Confirms: options-defined app name/icon map is the honest substitute; do not promise app-list discovery |
+| IME sensitivity | Constructor `enable_ime=True` — "**Needed for getting current_app**; disable for devices that show 'Use keyboard on mobile device screen'" | If we make IME configurable, document that disabling it can break the `current_app` push (which Phase 3 depends on) |
+| Voice | `start_voice()` → `VoiceStream` (PCM 16-bit mono 8 kHz, 20 KB chunks), `enable_voice=True` | Post-MVP |
+| `RemoteSetVolumeLevel` exists in the proto but is [sent by noone](https://github.com/tronikos/androidtvremote2/issues/176505) (see C-VOL) | — | Do not plan on it for VOLUME_SET |
+
+## 3. Patterns worth borrowing from other HA integrations (docs verified)
+
+All four integration docs read in full ([Roku](https://www.home-assistant.io/integrations/roku/),
+[Apple TV](https://www.home-assistant.io/integrations/apple_tv/),
+[Bravia](https://www.home-assistant.io/integrations/braviatv/),
+[androidtv](https://www.home-assistant.io/integrations/androidtv/)).
+
+| Integration | Mechanism | What to borrow | Effort for us |
+|---|---|---|---|
+| **Roku** | `play_media(media_content_type: channel)` → tune by number (e.g. `5.1`); `select_source` accepts app name *or* app id; BrowseMedia for apps; channel tuning for Roku TV devices; `media_content_type: app` with `extra.content_id`/`extra.media_type` for content deeplinks; `remote` commands incl. `channel_up`/`channel_down`; active app + active app id sensors; `media_content_type: url` + `extra{format,name,thumbnail,artist_name}` for PlayOnRoku direct playback; obtains app list via a published XML endpoint (`/query/apps`) | *Channel tuning semantic* — exactly our `channel` port (validated). *App deep link envelope shape*: `media_content_type: app` with `extra.content_id`/`extra.media_type` is a richer pattern than raw URLs if we later want per-app content launches — record it but don't build it for MVP. *Source list built from apps* matches our `select_source` = launch app. *Channel up/down as remote commands* — bolt `channel_up`/`channel_down` onto Phase-2 remote command set (keycodes 166/167, free) | Low–medium |
+| **Apple TV** | `play_media(media_content_type: url)` with `youtube://...`, `https://www.netflix.com/title/...` "Deep Links" (canonical how-to + link-discovery tips via iOS share sheets); `select_source` + BrowseMedia "Apps" folder for launching apps; `keyboard` entity (binary_sensor "keyboard focused") + three text actions (`set/append/clear_keyboard_text`) driven by keyboard-focus push; remote entity with `num_repeats`/`delay_secs`/`hold_secs` | *play_media(url) deep-link semantics* for Phase 4, direct port (mediatype `url` → `send_launch_app_command`). *"Apps folder"* validation for BrowseMedia. *Keyboard-focus push → typed-text entry* is Apple TV's answer to #32's append/replace ambiguity — a keyboard entity would need an IME-push equivalent the Shield protocol does not give us cheaply, so for MVP ship `send_text` only when IME is on (nothing fancier). *Remote entity parameters* (`num_repeats`/`delay_secs`/`hold_secs`) are the shape we already planned | Medium (only if we chase keyboard); Low for the rest |
+| **Sony Bravia** | `play_media` matches channel number, **exact or partial app/channel name**, or URI string; BrowseMedia lists installed apps + TV channels; remote commands incl. `Num0..Num9` (digit-typing built into the remote platform); documented real-world limitation that TVs running Android/Google TV lose in-app playback info unless you pair with Google Cast (they recommend **Universal Media Player with two children** — exactly the problem our all-in-one design solves natively) | *Fuzzy matching on media_content_id* (number OR exact/partial name) is a small and very forgiving UX win for `channel` — accept a numeric string strictly, but also accept exact channel/app names from an options-defined map if cheap. *The Bravia doc explicitly documents the Cast+Universal-Media-Player workaround* — citable pattern that our native ladder replaces for Shield users | Low (for the simple variant) |
+| **androidtv (core, ADB/Fire TV)** | `select_source` = launch app; **`!` prefix closes app** (`!com.netflix.ninja`); options editors for *apps list, exclude unknown, arbitrary ADB turn_on/turn_off commands, per-app `state_detection_rules`*; screen-capture album art option; `adb_command`/`upload`/`download` actions; `learn_sendevent` helper | *`!` close-app prefix is a tiny, delightful, zero-new-dep feature* — implement for free alongside our Phase-4 launch path; document it as an androidtv compatibility nicety. *Arbitrary turn_on/turn_off commands as options* is worth matching (we already have shell; gives users a knob without code). *`state_detection_rules`* (per-app playing/paused conditions over `media_session_state`, `audio_state`, `wake_lock_size`) is the blueprint for our last-known cache tier to become *configurable* if users need app-specific truth — out of ADB/MVP scope but record it. *Screen-capture album art* is the precedent for the screencap idea in §4 (Roku/Bravia do not need it; we do) | Low |
+
+Canonical patterns (all four):
+`select_source` = launch app with `source_list` of apps; BrowseMedia with a flat
+"Apps" directory; `play_media` channel digits or named matches; per-app
+icon/name map; documented `media_content_type` vocabulary (`channel`, `app`, `url`,
+`music`, `video`) — we should mirror this vocabulary exactly in Phase 2/4.
+
+## 4. adb_shell capabilities we are not using (verified from [adb_shell source](https://github.com/JeffLIrion/adb_shell))
+
+Source of truth read: [`adb_shell/adb_device.py`](https://github.com/JeffLIrion/adb_shell/blob/master/adb_shell/adb_device.py) (the full file) and [README.rst](https://raw.githubusercontent.com/JeffLIrion/adb_shell/master/README.rst).
+
+| Capability | API | MVP relevance |
+|---|---|---|
+| **Streaming shell** | `AdbDevice.streaming_shell(command, decode=True)` — a *generator that yields lines as they arrive, until the connection is closed* | ⚠️ Plan correction. `MVP_PLAN.md` §2 currently says "`adb_shell`'s shell() is request→full-response; there is no incremental/streaming read API". **That is no longer accurate on master** — `streaming_shell` exists as a documented generator on `AdbDevice`. Two caveats before acting: (a) verify it is present in the resolved version we pin (repo last pushed 2024‑10; check release ≥ ours covers it — the version is old enough that the feature set may differ slightly); (b) verify the *async* device class exposing it (the source read was the sync `AdbDevice`; the async subclass typically mirrors). If both check out, MVP_PLAN's "Phase-4 optional: logcat streaming behind an option" becomes **much cheaper than hacking adb_shell internals** — and the deferred logcat snapshot approach gains a real path. Rank as the single highest-value adb_shell finding |
+| **FileSync** | `push()`, `pull(device_path, local_path, ...)`, `list(device_path)` — full FileSync protocol | Enables clean `pull`-based `screencap -p /local && pull` work flows (crisper than `shell screencap -p` stdout parsing) for album art, debugging, or future thumbnails; zero new deps |
+| Lazy shell decode | `decode=False` on shell | Micro-win for binary/inspection commands |
+| USB | `AdbDeviceUsb` (experimental, `[usb]` extra) | Not for MVP (cradle-cable setup); note for future reference only |
+| Long-lived TCP connect | `AdbDeviceTcp(host, port, default_transport_timeout_s=...)` + `connect(rsa_keys=[signer], auth_timeout_s=...)` with per-call timeouts | What Phase 1 already relies on; the per-transaction timeout fields (`transport_timeout_s`/`read_timeout_s`/`timeout_s`) are worth being explicit about in the manager's health-check design rather than default-None everywhere |
+
+## 5. TiviMate specifics
+
+**What TiviMate gives us: essentially nothing at the device level.**
+- Package `ar.tvplayer.tv`; no media session (R2, verified twice — before/after a
+  zap produced byte-identical output) and appears only in the "Audio playback"
+  section of `dumpsys media_session`.
+- [MediaSession2MQTT#4](https://github.com/cbeyls/MediaSession2MQTT/issues/4):
+  independent confirmation that TiviMate produces nothing captureable by
+  notification/session bridges on the Shield.
+- [Channel-switch automation thread](https://community.home-assistant.io/t/automation-start-tivimate-and-change-to-specific-channel/859344):
+  the community's only working channel-select recipe is the digit-keyevent path we
+  already planned (plus a ~7 s delay for app cold start).
+- **No deep link published by users** in the deep-linking guide or elsewhere for
+  `ar.tvplayer.tv` — treat as "no shortcut"; if ever one surfaces, `am start` with
+  extras via ADB is the Phase-4 "apps the protocol can't launch" seam.
+- **Channel list export:** TiviMate does not expose a device-side API for the
+  channel list the community can use — the ecosystem gets channels from the
+  upstream M3U/XMLTV sources that TiviMate loads, not from the app. Community
+  projects around TiviMate (playlists, EPG ([EPGTalk](https://github.com/acidjesuz/EPGTalk)), playlist auto-updaters) take
+  their data from those links. **MVP implication:** if we ever want "channel
+  N = <name>" metadata, the data side belongs to the user's playlist/EPG pipeline
+  (e.g. options field to store a channel list file), *not* to the integration
+  scraping the TV.
+- **Channel/zap-change detection while watching:** no project has reliable on-device
+  telemetry (the R2 capture shows the dump is zap-invariant). Realistic best
+  signals remain the ones we have chosen: A "Audio playback" presence (identity)
+  and `last_channel` cache (what *we* last asked for). The Phase-1 optional
+  logcat-on-a-device process channel may eventually reveal app-internal logs, but
+  no public, stable, IPTV-app-level pattern exists to borrow.
+
+**Conclusion:** our current design (digits via keys, foreground fallback + audio-playback
+hint + last-known cache) is at parity with what the community does; the only
+additions worth recording are the ~7 s app-cold-start note in automation docs and the
+"channel list data belongs outside the integration" decision.
+
+## 6. Ranked ideas
+
+Ranking by: (a) fits locked MVP decisions, (b) cost, (c) user-verifiable payoff.
+"Phase" is where it should land in the current plan.
+
+| Rank | Idea | MVP fit | Effort | Phase |
+|---|---|---|---|---|
+| 1 | **`channel_up` / `channel_down` on the remote+media_player command sets** — free with the protocol's `KEYCODE_CHANNEL_UP`(166)/`KEYCODE_CHANNEL_DOWN`(167); Roku/Bravia precedent for making tuning feel native; zero new logic since we already send keycodes for digits | High | Trivial (hours) | 2 (fall-out) |
+| 2 | **`!` app-close prefix on `select_source`/`play_media(app)`** — androidtv precedent (`!com.netflix.ninja`); one-stop fix for "app won't die" automation scripts; zero new deps or surfaces | High | Small (half day incl. tests) | 4 |
+| 3 | **`play_media(media_content_type: url)` deep links via `send_launch_app_command`** with a cloud-less data-driven *deeplink map option* (validated against the community-wide guide; the library accepts either raw deep link or bare package id) — plus the guide's `adb shell cmd package dump` trick documented for contributors to discover links per app | High | Small–medium (~1 day incl. options editor) | 4 |
+| 4 | **BrowseMedia "Apps" directory** from running_apps + options-defined app map (androidtv_remote/Apple TV/Bravia precedent) — the single most-requested QoL pattern in this space and the reason users hit external cards ([#117126](https://github.com/home-assistant/core/pull/117126), [HA-Firemote#48](https://github.com/PRProd/HA-Firemote/issues/48)) | High | Medium (~1–2 days incl. icons + tests) | 4 |
+| 5 | **Volume readout hardening in Phase 2** — `volume_info` push sourced real `volume_level` and mute, with `media_player.volume_set` deliberately unsupported (C-VOL correction, already adopted); if we hear repeated user demand later, offer an ADB-step-loop helper service documented as such (not fake features) | Medium (already handled) | done (plan note only) | 2 |
+| 6 | **adb_shell streaming_shell probe** — spike: confirm `streaming_shell` exists at our pinned adb-shell version and on the async class; if yes, MVP_PLAN's deferred logcat-on-ADB idea is feasible via a documented generator rather than internal hacks; if no, keeps the snapshot-only plan honest. Cheap spike, high leverage on a currently-"impossible" feature | Medium | Small (half-day spike) | 4 (optional path) |
+| 7 | **Bravia-style tolerant `media_content_id` matching** for `channel` (accept `5.1`-style floats and exact-name matches from the app/channel map) — small UX win, safe with a strict numeric path retained | Medium | Small | 3/4 |
+| 8 | **Screen-capture album art (adb_shell `screencap`/`pull`)** — androidtv precedent supplies the pattern; useful only for our PlayOnRoku-missing, Jellyfin-cached apps; keep it as a documented option like androidtv does, since it costs extra ADB shell round trips when playing and is privacy-scope-sensitive | Medium | Medium (~1 day + options slosh) | Post-MVP |
+| 9 | **IME text entry surfaced as a remote/service integration** — possible now that the library has `send_text`/`text:` syntax, but per #32 behavior is inconsistent; Apple TV solves this with a keyboard-focus push that the Shield protocol doesn't give us cheaply; keep IME an options toggle, not an entity | Low for MVP | Medium | 4 (option only) |
+| 10 | **`state_detection_rules`-style per-app configurable state ladder** (androidtv pattern) — only if/when users ask for app-specific truth beyond ADB sessions (e.g. IPTV VOD pages); nice future seam; don't build pre-emptively | Low for MVP | Medium–large | Post-MVP |
+| 11 | **Voice (`start_voice`)** — available in the library, `enable_voice=True` and device-feature-gated; not in our MVP scope, recorded so it's not re-researched | Low | Medium | Post-MVP |
+
+Key references for the rankings (primary, not forum threads only):
+[core#176505](https://github.com/home-assistant/core/issues/176505) ·
+[#117126](https://github.com/home-assistant/core/pull/117126) ·
+[#17](https://github.com/tronikos/androidtvremote2/issues/17) ·
+[#32](https://github.com/tronikos/androidtvremote2/issues/32) ·
+[#28](https://github.com/tronikos/androidtvremote2/issues/28) ·
+[androidtvremote2 source](https://github.com/tronikos/androidtvremote2/blob/main/src/androidtvremote2/androidtv_remote.py) ·
+[proto](https://github.com/tronikos/androidtvremote2/blob/main/src/androidtvremote2/remotemessage.proto) ·
+[adb_shell device](https://github.com/JeffLIrion/adb_shell/blob/master/adb_shell/adb_device.py) ·
+[Roku](https://www.home-assistant.io/integrations/roku/) ·
+[Apple TV](https://www.home-assistant.io/integrations/apple_tv/) ·
+[Bravia](https://www.home-assistant.io/integrations/braviatv/) ·
+[androidtv](https://www.home-assistant.io/integrations/androidtv/) ·
+[deep linking guide](https://community.home-assistant.io/t/android-tv-remote-app-links-deep-linking-guide/567921/) ·
+[community TiviMate thread](https://community.home-assistant.io/t/automation-start-tivimate-and-change-to-specific-channel/859344) ·
+[Firemote#48](https://github.com/PRProd/HA-Firemote/issues/48) ·
+[MediaSession2MQTT#4](https://github.com/cbeyls/MediaSession2MQTT/issues/4)
+
+---
+
+## 7. Explicit MVP-plan corrections proposed (for Phase-3/4 lands)
+
+1. **C-VOL (already adopted by captain).** `volume_set` is not protocol-native — the
+   supported features in Phase 2 stay `VOLUME_STEP|MUTE`, with real numeric
+   `volume_level` and `is_volume_muted` readouts from the protocol's `volume_info`
+   push. Absolute-volume demand, if it ever recurs, is addressed honestly via an
+   ADB `input keyevent KEYCODE_VOLUME_*` helper script, documented as such, not as
+   a fake supported feature.
+2. **C-STREAM (new).** MVP_PLAN §2's statement that adb_shell offers no
+   incremental/streaming read should be softened: `streaming_shell` exists
+   upstream (at least on master) and might make the deferred Phase-4 logcat idea
+   a one-day spike instead of "needs new dependency".  Verify our pinned version
+   carries it and whether the async device class exposes it, then either upgrade
+   to a "cheap Phase-4 item" or keep the deferred note with accurate wording.
+3. **C-LAUNCH (new, informational).** `send_launch_app_command` already accepts a bare
+   package id by auto-prefixing `market://launch?id=`; Phase 4 needs no extra
+   branch for "app" launches, only for deep links (where the value already has a
+   scheme) and `!`-close via ADB (only when the protocol path is not enough).
+4. **C-TIVI (new).** TiviMate has no usable on-device channel metadata or export
+   surface; the honest MVP display is "on, in TiviMate" + `last_channel` cache
+   from our own play_media calls. Channel-name metadata is a user-supplied
+   playlist/EPG concern, out of scope (and out of ADB's reach).

docs/RESEARCH_SHIELD.md

@@ -394,3 +394,30 @@ media_player:
 9. Migration note: retire mediasession2mqtt sensors + universal-player YAML once
    Phase 3 lands (documented in README).
 10. Netflix stale-session fixture pins "inactive no-state sessions ignored".
+
+---
+
+## Appendix — mediasession2mqtt retirement + universal-player glue (Phase 3)
+
+The fork retires the surrounding glue once the state ladder (README, Phase 3)
+covers what the external pieces provided:
+
+| External piece | What it provided | Now native (file) |
+|---|---|---|
+| `mediasession2mqtt` bridge sensors | per-app now-playing pushed over MQTT from the Shield's notification listener | ADB media-session polling + the foreground tier (`connection.py`, `media_player.py`); the `media_dag_now_playing` attribute carries `source: jellyfin \| media_session \| app` |
+| Universal media player `media_dag_running_apps` template | app switcher list with playback states | `running_apps_from_tasks(..., last_known=...)` (`ha_adb_common/running_apps.py`) — enriched with `foreground`/`state`/`last_known_state`/`last_known_title` |
+| Universal player "currently in app X" template | fallback state for no-session apps | the foreground ladder tier (`media_player.py` state property, tier 3.5) |
+| External androidtv_remote entity for commands | remote keys | the protocol-backed `remote` entity (Phase 2) — the external entity remains only as the transitional last command tier, removed in Phase 4 |
+| Last-channel / "recently played" sensors | what was on when the session vanished | the TTL-capped last-known-state cache + `_last_channel` + the audio-playback hint (`connection.py`) |
+
+The migration path: point the automations/scripts at the integration's DAG
+attributes (`media_dag_*`) instead of the MQTT sensors, then remove
+`mediasession2mqtt` and the universal-player config entries. No YAML glue is
+needed for the MVP feature set; the appendix exists so retirement can be
+staged per household.
+
+**TiviMate (`ar.tvplayer.tv`)** is the documented no-session case (R2): it
+publishes no MediaSession on Shield Android 11. Its visibility comes from the
+foreground tier (tier 3.5) with the audio-playback hint and the
+last-known-state cache — never from a session, never resurrected past the
+state TTL.

pyproject.toml

@@ -14,14 +14,11 @@ dev = [
     "pytest>=8.0",
     "pytest-asyncio>=0.23",
     "ruff>=0.4",
-    # Shared ADB helpers. Vendored into custom_components/nvidia_shield/ha_adb_common/
-    # for HACS installs; used editable from a sibling checkout for development.
-    # Planned migration to a proper PyPI package.
-    "ha-adb-common",
+    "androidtvremote2>=0.2.0",
 ]
-
-[tool.uv.sources]
-ha-adb-common = { path = "../ha-adb-common", editable = true }
+# The shared ADB helpers are vendored at
+# custom_components/nvidia_shield/ha_adb_common/ — the only consumed copy in
+# this fork, so no extra dev dependency (and no unavailable sibling checkout).
 
 [tool.ruff]
 target-version = "py312"

scripts/determine-release-version.sh

@@ -0,0 +1,157 @@
+#!/usr/bin/env bash
+#
+# Resolve the version this push should release (t42).
+#
+# Why a script: this decision is what makes a release visible to HACS, and every
+# wrong answer is silent — the tag and the release still exist, only the manifest
+# never moves. So the logic lives here, where tests/test_release_versioning.py
+# drives every branch locally, instead of inline in a workflow nobody can run.
+#
+# Resolution (M = manifest version, D = today in UTC, tags = existing v-tags):
+#   1. M is tagged AND that tag is the commit being released
+#        -> RELEASE=no (SOURCE=released): a re-run, this commit is already out
+#   2. M is not tagged        -> VERSION=M  (SOURCE=manifest)
+#        an unreleased manifest version wins: bump it to force a release
+#   3. D is not tagged        -> VERSION=D  (SOURCE=date)
+#        the one automatic release per UTC day
+#   4. otherwise              -> VERSION=D.N (SOURCE=same-day)
+#        N is the LOWEST untagged N >= 2, so further releases in the same UTC day
+#        become 2026.10.11.2, 2026.10.11.3, … instead of silently doing nothing
+#
+# The workflow writes the resolved VERSION back into the manifest whenever it
+# differs, then tags THAT commit, so the released artifact and its tag always
+# agree. The defect this fixes: v2026.10.09 shipped while master's manifest still
+# said 2026.10.08, leaving HACS comparing against a version that never moved.
+#
+# Usage: scripts/determine-release-version.sh [--manifest PATH] [--today YYYY.MM.DD]
+#                                             [--tags-from FILE] [--head SHA]
+#
+#   --manifest    manifest to read (default: custom_components/nvidia_shield/manifest.json)
+#   --today       override the UTC date — for tests and dry runs only
+#   --tags-from   read "TAG [SHA]" lines instead of asking git — for tests and dry runs
+#   --head        the commit being released (default: git rev-parse HEAD)
+#
+# Stdout, and $GITHUB_OUTPUT as well when it is set (which is what the workflow
+# consumes): VERSION, TAG, SOURCE, BUMP, RELEASE. Commentary goes to stderr.
+# RELEASE=no is the explicit no-op signal: nothing may be tagged or published.
+# Exit status is 1 only for a usage or manifest error, so "no release" is not a
+# failed job.
+set -euo pipefail
+
+MANIFEST="custom_components/nvidia_shield/manifest.json"
+TAGS_FROM=""
+HEAD_SHA=""
+TODAY=""
+
+usage() {
+  sed -n '/^# Usage:/,/^# Exit status/p' "$0" | sed 's/^# \{0,1\}//'
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --manifest)  MANIFEST="${2:?--manifest needs a path}"; shift 2 ;;
+    --today)     TODAY="${2:?--today needs YYYY.MM.DD}"; shift 2 ;;
+    --tags-from) TAGS_FROM="${2:?--tags-from needs a path}"; shift 2 ;;
+    --head)      HEAD_SHA="${2:?--head needs a sha}"; shift 2 ;;
+    -h|--help)   usage; exit 0 ;;
+    *)           echo "unknown argument: $1" >&2; usage >&2; exit 1 ;;
+  esac
+done
+
+note() { printf '%s\n' "$*" >&2; }
+
+[[ -f "$MANIFEST" ]] || { note "manifest not found: $MANIFEST"; exit 1; }
+command -v jq >/dev/null 2>&1 || { note "jq is required to read the manifest"; exit 1; }
+
+MANIFEST_VERSION="$(jq -r '.version // empty' "$MANIFEST")"
+[[ -n "$MANIFEST_VERSION" ]] || { note "no .version in $MANIFEST"; exit 1; }
+# Tolerate a hand-written leading "v" (the tag adds its own); anything else that
+# is not YYYY.MM.DD[.N] is a mistake worth failing for.
+MANIFEST_VERSION="${MANIFEST_VERSION#v}"
+[[ "$MANIFEST_VERSION" =~ ^[0-9]{4}\.[0-9]{2}\.[0-9]{2}(\.[0-9]+)?$ ]] || {
+  note "manifest version '$MANIFEST_VERSION' is not YYYY.MM.DD[.N]"; exit 1; }
+
+if [[ -n "$TODAY" ]]; then
+  [[ "$TODAY" =~ ^[0-9]{4}\.[0-9]{2}\.[0-9]{2}$ ]] || { note "--today must be YYYY.MM.DD"; exit 1; }
+  DATE_VERSION="$TODAY"
+else
+  # UTC, always: a runner's local timezone must never decide a version number.
+  DATE_VERSION="$(date -u +%Y.%m.%d)"
+fi
+
+if [[ -n "$TAGS_FROM" ]]; then
+  [[ -f "$TAGS_FROM" ]] || { note "tag list not found: $TAGS_FROM"; exit 1; }
+else
+  command -v git >/dev/null 2>&1 || { note "git is required to list tags"; exit 1; }
+fi
+
+tag_exists() {
+  if [[ -n "$TAGS_FROM" ]]; then
+    awk -v wanted="$1" '$1 == wanted { found = 1 } END { exit(found ? 0 : 1) }' "$TAGS_FROM"
+  else
+    git rev-parse -q --verify "refs/tags/$1" >/dev/null
+  fi
+}
+
+tag_sha() {
+  if [[ -n "$TAGS_FROM" ]]; then
+    awk -v wanted="$1" '$1 == wanted && NF > 1 { print $2; found = 1 } END { exit(found ? 0 : 1) }' "$TAGS_FROM"
+  else
+    git rev-parse -q --verify "refs/tags/$1^{commit}"
+  fi
+}
+
+if [[ -z "$HEAD_SHA" ]] && [[ -z "$TAGS_FROM" ]]; then
+  HEAD_SHA="$(git rev-parse -q --verify HEAD 2>/dev/null || true)"
+fi
+
+VERSION=""
+SOURCE=""
+RELEASE="yes"
+
+if tag_exists "v${MANIFEST_VERSION}" && [[ -n "$HEAD_SHA" ]] \
+  && [[ "$(tag_sha "v${MANIFEST_VERSION}" 2>/dev/null || true)" == "$HEAD_SHA" ]]; then
+  VERSION="$MANIFEST_VERSION"; SOURCE="released"; RELEASE="no"
+  note "v${VERSION} is already tagged on this commit — nothing to release"
+elif ! tag_exists "v${MANIFEST_VERSION}"; then
+  VERSION="$MANIFEST_VERSION"; SOURCE="manifest"
+elif ! tag_exists "v${DATE_VERSION}"; then
+  VERSION="$DATE_VERSION"; SOURCE="date"
+else
+  N=2
+  while tag_exists "v${DATE_VERSION}.${N}"; do N=$((N + 1)); done
+  VERSION="${DATE_VERSION}.${N}"; SOURCE="same-day"
+fi
+
+if [[ "$RELEASE" == "yes" ]] && tag_exists "v${VERSION}"; then
+  # Backstop, not a normal path: the resolution above only ever picks an
+  # untagged version, so reaching this means the tag set changed underneath us
+  # (a race with a parallel run — the concurrency group is the primary guard).
+  # Never tag or publish something that already exists.
+  RELEASE="no"; SOURCE="tagged"
+  note "v${VERSION} already exists — nothing to release"
+fi
+
+BUMP="no"
+if [[ "$VERSION" != "$MANIFEST_VERSION" ]]; then
+  BUMP="yes"
+fi
+
+if [[ "$RELEASE" == "yes" ]]; then
+  note "releasing v${VERSION} (${SOURCE}); manifest says ${MANIFEST_VERSION}, bump=${BUMP}"
+else
+  note "no release (${SOURCE})"
+fi
+
+emit() {
+  printf '%s=%s\n' "$1" "$2"
+  if [[ -n "${GITHUB_OUTPUT:-}" ]]; then
+    printf '%s=%s\n' "$1" "$2" >> "$GITHUB_OUTPUT"
+  fi
+}
+
+emit VERSION "$VERSION"
+emit TAG "v${VERSION}"
+emit SOURCE "$SOURCE"
+emit BUMP "$BUMP"
+emit RELEASE "$RELEASE"

tests/conftest.py

@@ -0,0 +1,53 @@
+"""Test bootstrap.
+
+Puts the vendored ha_adb_common package on sys.path so helpers can be imported
+directly (their code is stdlib-only) without installing Home Assistant or
+executing the integration's __init__ module.
+
+The integration-package modules that stay Home-Assistant-free at import time
+(currently connection.py) are also made importable — via a synthetic package
+("nsh") that wraps custom_components/nvidia_shield WITHOUT executing its
+__init__.py (that one imports Home Assistant). Only the stdlib-only modules
+are loaded into it explicitly; their relative imports resolve normally.
+"""
+
+import importlib.util
+import sys
+import types
+from pathlib import Path
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(REPO_ROOT / "custom_components" / "nvidia_shield"))
+
+_SHIELD_DIR = REPO_ROOT / "custom_components" / "nvidia_shield"
+_PKG = "nsh"
+
+
+def _load_module(name: str, path: Path, search_paths: list[str] | None = None):
+    """Import a source file under ``name`` without touching real packages."""
+    spec = importlib.util.spec_from_file_location(
+        name, path, submodule_search_locations=search_paths
+    )
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[name] = module
+    spec.loader.exec_module(module)
+    return module
+
+
+# Synthetic integration package — no __init__.py execution (HA-free).
+_root = types.ModuleType(_PKG)
+_root.__path__ = [str(_SHIELD_DIR)]
+sys.modules[_PKG] = _root
+
+# Real subpackage __init__ (stdlib-only) so `from .ha_adb_common import ...`
+# works through the synthetic package.
+_load_module(
+    f"{_PKG}.ha_adb_common",
+    _SHIELD_DIR / "ha_adb_common" / "__init__.py",
+    [str(_SHIELD_DIR / "ha_adb_common")],
+)
+
+# Stdlib-only integration modules.
+for _mod in ("const", "adb_session", "connection"):
+    _load_module(f"{_PKG}.{_mod}", _SHIELD_DIR / f"{_mod}.py")
+

tests/entity_stublib.py

@@ -0,0 +1,658 @@
+"""Home-Assistant object stubs sized to unit-test the entity modules (t10).
+
+Import-only stubs: MediaPlayerEntity/RemoteEntity bases, the feature/state
+enum values the integration actually uses, and the event helpers. Tests load
+their entity module through the synthetic ``nsh`` package AFTER calling
+:func:`install` (and the per-file fixture pops everything at teardown).
+"""
+
+import asyncio
+import enum
+import sys
+import types
+from collections.abc import Mapping
+
+import voluptuous_mirror
+
+ENTITIES_STUB_NAMES = (
+    "voluptuous",
+    "homeassistant",
+    "homeassistant.config_entries",
+    "homeassistant.exceptions",
+    "homeassistant.core",
+    "homeassistant.const",
+    "homeassistant.components",
+    "homeassistant.components.media_player",
+    "homeassistant.components.remote",
+    "homeassistant.components.button",
+    "homeassistant.helpers",
+    "homeassistant.helpers.entity_registry",
+    "homeassistant.helpers.device_registry",
+    "homeassistant.helpers.selector",
+    "homeassistant.helpers.event",
+    "homeassistant.helpers.redact",
+    "homeassistant.helpers.entity",
+    "homeassistant.helpers.entity_platform",
+    "nsh.helpers",
+    "nsh.power",
+    "nsh.jellyfin",
+    "nsh.media_player",
+    "nsh.diagnostics",
+    "nsh.remote",
+)
+
+
+class EntitySelectorStub:
+    """Stand-in for HA's EntitySelector that REJECTS '' and None, like the real one.
+
+    Real HA answers a cleared entity field with "Schema validation failed at …"
+    (t46 F1), so a stub that accepted anything would hide exactly the trap the flow
+    has to tolerate; tests/test_config_flow_ux.py validates a schema with both
+    values to prove it.
+    """
+
+    def __init__(self, config=None):
+        self.config = config
+
+    def __call__(self, data):
+        if not isinstance(data, str) or not data.strip():
+            raise ValueError("Entity is not a valid entity id")
+        return data
+
+
+def install_selector_faces(selector_module) -> None:
+    """Populate a ``homeassistant.helpers.selector`` stub module.
+
+    One definition for every installer (entity_stublib and the four per-file
+    installers in the flow tests), so the stubs cannot drift apart.
+    """
+    selector_module.EntitySelector = EntitySelectorStub
+
+    class _Config(types.SimpleNamespace):
+        """Selector configs keep their kwargs (real HA stores them as fields).
+
+        The stub needs them inspectable: which domains a selector offers is a
+        user-visible contract (t56 — the Receiver field accepts a switch), and a
+        lambda throwing the value away cannot pin it.
+        """
+
+    selector_module.EntitySelectorConfig = _Config
+    selector_module.SelectSelector = lambda *args, **kwargs: None
+    selector_module.SelectSelectorConfig = _Config
+    selector_module.SelectSelectorMode = types.SimpleNamespace(DROPDOWN="dropdown")
+
+
+class MediaPlayerState(enum.StrEnum):
+    OFF = "off"
+    ON = "on"
+    IDLE = "idle"
+    PLAYING = "playing"
+    PAUSED = "paused"
+    STANDBY = "standby"
+    BUFFERING = "buffering"
+
+
+class MediaPlayerEntityFeature(enum.IntFlag):
+    PLAY = 1
+    PAUSE = 2
+    STOP = 4
+    VOLUME_MUTE = 8
+    VOLUME_STEP = 16
+    VOLUME_SET = 32
+    BROWSE_MEDIA = 4096
+    TURN_ON = 64
+    TURN_OFF = 128
+    PLAY_MEDIA = 256
+    NEXT_TRACK = 512
+    PREVIOUS_TRACK = 1024
+    SELECT_SOURCE = 2048
+
+
+class MediaClass:
+    """homeassistant.components.media_player.MediaClass (values we use)."""
+
+    APP = "app"
+    DIRECTORY = "directory"
+
+
+class MediaType:
+    """homeassistant.components.media_player.MediaType (values we use)."""
+
+    APP = "app"
+    APPS = "apps"
+
+
+class BrowseMedia:
+    """The REAL media_player.BrowseMedia shape (t37 D1).
+
+    Keyword-only with the six arguments real HA requires, the optional ones it
+    accepts, a faithful ``as_dict`` and — crucially — NO ``domain`` parameter:
+    ``BrowseMediaSource`` lives in
+    ``homeassistant.components.media_source.models`` (its contract is the
+    ``media_source://<domain>`` id) and is NOT importable from
+    ``homeassistant.components.media_player`` at all. The old import and the
+    old ``domain=`` kwarg therefore fail IN-SUITE instead of hiding behind a
+    permissive stub.
+    """
+
+    def __init__(
+        self,
+        *,
+        media_class,
+        media_content_id,
+        media_content_type,
+        title,
+        can_play,
+        can_expand,
+        children=None,
+        children_media_class=None,
+        thumbnail=None,
+        not_shown=0,
+        can_search=False,
+        search_media_classes=None,
+    ):
+        self.media_class = media_class
+        self.media_content_id = media_content_id
+        self.media_content_type = media_content_type
+        self.title = title
+        self.can_play = can_play
+        self.can_expand = can_expand
+        self.children = children
+        self.children_media_class = children_media_class
+        self.thumbnail = thumbnail
+        self.not_shown = not_shown
+        self.can_search = can_search
+        self.search_media_classes = search_media_classes
+
+    def as_dict(self, *, parent=True):
+        """Real payload conversion — what the frontend actually consumes."""
+        if self.children_media_class is None and self.children:
+            self.calculate_children_class()
+        response = {
+            "title": self.title,
+            "media_class": self.media_class,
+            "media_content_type": self.media_content_type,
+            "media_content_id": self.media_content_id,
+            "children_media_class": self.children_media_class,
+            "can_play": self.can_play,
+            "can_expand": self.can_expand,
+            "can_search": self.can_search,
+            "search_media_classes": self.search_media_classes,
+            "thumbnail": self.thumbnail,
+        }
+        if not parent:
+            return response
+        response["not_shown"] = self.not_shown
+        response["children"] = (
+            [child.as_dict(parent=False) for child in self.children]
+            if self.children
+            else []
+        )
+        return response
+
+    def calculate_children_class(self):
+        """Real helper: the children's common class, else DIRECTORY."""
+        self.children_media_class = MediaClass.DIRECTORY
+        assert self.children is not None
+        proposed_class = self.children[0].media_class
+        if all(child.media_class == proposed_class for child in self.children):
+            self.children_media_class = proposed_class
+
+
+class MediaEntityManager:
+    """trivial stand-in for the HA platform internals we don't exercise."""
+
+
+class MediaPlayerEntity:
+    """Base entity: attributes only; state writing is a no-op."""
+
+    def async_write_ha_state(self) -> None:
+        return None
+
+
+class RemoteEntity:
+    def async_write_ha_state(self) -> None:
+        return None
+
+
+#: Every face install() registers. The guard below checks the WHOLE set, not one
+#: sentinel: test files scope their stubs per file (snapshot + pop at teardown, the
+#: t7 discipline), so one file can leave `homeassistant.components.media_player`
+#: behind while another name it popped — e.g. `voluptuous` — is gone. A sentinel
+#: guard then made install() a no-op in the next file, and whichever module needed
+#: the missing face failed with ModuleNotFoundError depending on file order (t44).
+#: The faces install() provides, derived from the list every test file scopes on.
+#: The ``nsh.*`` entries there are the integration modules the harness loads, not
+#: stub faces, so they are filtered out here.
+_STUB_FACES = tuple(
+    name for name in ENTITIES_STUB_NAMES if not name.startswith("nsh.")
+)
+
+
+def install() -> None:
+    """Register the stub modules (idempotent, and self-healing).
+
+    Callers must be able to rely on this regardless of what a previous test file
+    popped: a missing face rebuilds the whole set, so any subset or file order
+    works. A complete set is left alone — a file that installed richer faces of
+    its own (tests/test_config_flow_ux.py's voluptuous mirror, the discovery
+    stub) keeps them.
+    """
+    if all(name in sys.modules for name in _STUB_FACES):
+        return
+
+    vol = types.ModuleType("voluptuous")
+    # t33 F-A: the faithful mirror keeps schema defaults visible — a bare-key
+    # stub cannot tell a schema WITH a default from one without.
+    voluptuous_mirror.install(vol)
+    sys.modules["voluptuous"] = vol
+
+    ha = types.ModuleType("homeassistant")
+    sys.modules["homeassistant"] = ha
+
+    config_entries = types.ModuleType("homeassistant.config_entries")
+    config_entries.ConfigEntry = type("ConfigEntry", (), {})
+    async def _stub_set_unique_id(self, unique_id):
+        # hub shape: record; a full flow test file scopes its own version
+        self._unique_id = unique_id
+
+    def _noop_abort(self, *, error=None, **kwargs):
+        return None
+
+    class _ConfigFlowStub:
+        """ConfigFlow shape used by entity tests (t29 G3a API included).
+
+        Late loads under the hub stubs (e.g. test_init designs run AFTER the
+        other flow files) still get the base plumbing the flow modules rely
+        on — show/create/abort/unique-id — so the flow classes never import
+        against a bare base.
+        """
+
+        async_set_unique_id = _stub_set_unique_id
+        _abort_if_unique_id_configured = _noop_abort
+
+        async def _async_handle_discovery_without_unique_id(self):
+            # t37 D3: the real helper is a COROUTINE and core awaits it — a
+            # sync stub here would turn the production `await` into a
+            # TypeError. The abort semantics live in
+            # tests/test_standalone_setup.py, whose stub owns entry/in-progress
+            # state; at hub scope there is nothing to abort on.
+            return None
+
+        def async_show_form(
+            self, *, step_id, data_schema=None, errors=None,
+            description_placeholders=None,
+        ):
+            return {
+                "type": "form",
+                "step_id": step_id,
+                "errors": dict(errors or {}),
+                "data_schema": data_schema,
+                "description_placeholders": dict(description_placeholders or {}),
+            }
+
+        def async_create_entry(self, *, title, data, options=None):
+            return {"type": "create_entry", "title": title, "data": data}
+
+        def async_abort(self, *, reason):
+            return {"type": "abort", "reason": reason}
+
+        def _get_reauth_entry(self, entry=None):
+            if entry is not None:
+                return entry
+            return None  # the caller's cached entry is used
+
+        def _get_reconfigure_entry(self, entry=None):
+            if entry is not None:
+                return entry
+            return None  # the caller's cached entry is used
+
+        # NOTE: the real HA signature is async_update_reload_and_abort(entry, ...)
+        # which updates, schedules the reload and aborts; the stub records both.
+
+        def async_update_reload_and_abort(self, entry, **kwargs):
+            """Real-HA semantics: update, schedule the reload, abort."""
+            updates = kwargs.get("options_updates") or kwargs.get("data_updates") or {}
+            for key, value in updates.items():
+                if key in ("options", "data", "unique_id"):
+                    setattr(entry, key, value)
+                else:
+                    getattr(entry, "options", {}).setdefault(key, value)  # best effort
+            scheduler = getattr(self.hass, "config_entries", None)
+            if scheduler is not None and hasattr(
+                scheduler, "async_schedule_reload"
+            ):
+                scheduler.async_schedule_reload(entry.entry_id)
+            return self.async_abort(reason="reauth_successful")
+
+    def _config_flow_init(self, *args, **kwargs):
+        self.context = getattr(self, "context", {}) or {}
+        self.hass = getattr(self, "hass", None)
+
+    _config_flow_base = type(
+        "ConfigFlow",
+        (_ConfigFlowStub,),
+        {
+            "__init_subclass__": classmethod(
+                lambda cls, domain=None, **kwargs: None
+            ),
+            "__init__": _config_flow_init,
+        },
+    )
+    config_entries.ConfigFlow = _config_flow_base
+    class _OptionsFlowStub:
+        def __init__(self):
+            self.config_entry = None
+
+        def add_suggested_values_to_schema(self, schema, suggested):
+            # real HA merges hints; the stub records them on the schema dict
+            schema_dict = getattr(schema, "schema", None) or (
+                schema if isinstance(schema, dict) else {}
+            )
+            schema_dict.setdefault("__suggested__", dict(suggested))
+            return schema
+
+    class _OptionsFlowWithReload(_OptionsFlowStub):
+        """Options flow that reloads after a successful save (real HA)."""
+
+        def async_create_entry(self, *, title, data, options=None):
+            entry_id = getattr(self.config_entry, "entry_id", None)
+            scheduler = getattr(getattr(self, "hass", None), "config_entries", None)
+            if entry_id is not None and scheduler is not None and hasattr(
+                scheduler, "async_schedule_reload"
+            ):
+                scheduler.async_schedule_reload(entry_id)
+            return {"type": "create_entry", "title": title, "data": data}
+
+    config_entries.OptionsFlow = _OptionsFlowStub
+    config_entries.SOURCE_IMPORT = "import"
+    config_entries.OptionsFlowWithReload = _OptionsFlowWithReload
+    sys.modules["homeassistant.config_entries"] = config_entries
+
+    exceptions = types.ModuleType("homeassistant.exceptions")
+
+    class HomeAssistantErrorStubError(Exception):
+        def __init__(self, *args, **kwargs):
+            super().__init__(*args or (kwargs.get("translation_key"),))
+            self.translation_domain = kwargs.get("translation_domain")
+            self.translation_key = kwargs.get("translation_key")
+            self.translation_placeholders = kwargs.get("translation_placeholders")
+
+    class ServiceValidationErrorStubError(HomeAssistantErrorStubError):
+        """Real HA: ServiceValidationError derives from HomeAssistantError (t44)."""
+
+    # t44: media_player raises HomeAssistantError when a configured command script
+    # fails, so both names have to exist — and with the real inheritance.
+    exceptions.HomeAssistantError = HomeAssistantErrorStubError
+    exceptions.ServiceValidationError = ServiceValidationErrorStubError
+    sys.modules["homeassistant.exceptions"] = exceptions
+
+    core = types.ModuleType("homeassistant.core")
+    core.HomeAssistant = object
+    core.callback = lambda fn: fn
+    core.CALLBACK_TYPE = object
+    core.Event = object
+    sys.modules["homeassistant.core"] = core
+
+    ha_const = types.ModuleType("homeassistant.const")
+    ha_const.EVENT_HOMEASSISTANT_STOP = "homeassistant_stop"
+    ha_const.STATE_PLAYING = "playing"
+    ha_const.STATE_PAUSED = "paused"
+    # t61: a receiver switch is read and switched by the media player, so the
+    # two switch states have to exist with their real values.
+    ha_const.STATE_ON = "on"
+    ha_const.STATE_OFF = "off"
+    ha_const.Platform = types.SimpleNamespace(
+        MEDIA_PLAYER="media_player",
+        SENSOR="sensor",
+        REMOTE="remote",
+        BUTTON="button",
+    )
+    sys.modules["homeassistant.const"] = ha_const
+
+    components = types.ModuleType("homeassistant.components")
+    components.__path__ = []
+    sys.modules["homeassistant.components"] = components
+
+    mp = types.ModuleType("homeassistant.components.media_player")
+    mp.MediaPlayerEntity = MediaPlayerEntity
+    mp.MediaPlayerDeviceClass = types.SimpleNamespace(TV="tv")
+    mp.MediaPlayerEntityFeature = MediaPlayerEntityFeature
+    mp.BrowseMedia = BrowseMedia
+    mp.MediaClass = MediaClass
+    mp.MediaType = MediaType
+    # NOTE (t37 D1): homeassistant.components.media_player exposes NO
+    # BrowseMediaSource — deliberately not stubbed, so the drifted import
+    # fails here exactly as it does in a real install.
+    mp.MediaPlayerState = MediaPlayerState
+    sys.modules["homeassistant.components.media_player"] = mp
+
+    remote = types.ModuleType("homeassistant.components.remote")
+    remote.RemoteEntity = RemoteEntity
+    sys.modules["homeassistant.components.remote"] = remote
+
+    button = types.ModuleType("homeassistant.components.button")
+    button.ButtonEntity = type("ButtonEntity", (), {})
+    sys.modules["homeassistant.components.button"] = button
+    sensor_platform = types.ModuleType("homeassistant.components.sensor")
+    sensor_platform.SensorEntity = type("SensorEntity", (), {})
+    sensor_platform.SensorDeviceClass = types.SimpleNamespace(APP="app")
+    sys.modules["homeassistant.components.sensor"] = sensor_platform
+
+
+    helpers = types.ModuleType("homeassistant.helpers")
+    entity_registry = types.ModuleType("homeassistant.helpers.entity_registry")
+
+    class _Registry:
+        entities: dict = {}
+
+        def async_get(self, entity_id):
+            return None
+
+    entity_registry.async_get = lambda hass: _Registry()
+    device_registry = types.ModuleType("homeassistant.helpers.device_registry")
+
+    class _DeviceRegistry:
+        def __init__(self):
+            self.devices: dict[str, object] = {}
+
+        def async_get(self, device_id):
+            return self.devices.get(device_id)
+
+    _device_registry_shared = _DeviceRegistry()
+
+    device_registry.async_get = lambda hass: _device_registry_shared
+    sys.modules["homeassistant.helpers.device_registry"] = device_registry
+
+    helpers.entity_registry = entity_registry
+    sys.modules["homeassistant.helpers.entity_registry"] = entity_registry
+
+    helpers.device_registry = device_registry
+    sys.modules["homeassistant.helpers.device_registry"] = device_registry
+
+    event = types.ModuleType("homeassistant.helpers.event")
+    event.async_call_later = lambda hass, delay, callback_fn: (lambda: None)
+    event.async_track_state_change_event = lambda *args, **kwargs: (lambda: None)
+    helpers.event = event
+    helpers.selector = types.SimpleNamespace(
+        EntitySelector=EntitySelectorStub,
+        EntitySelectorConfig=lambda *a, **k: "",
+        SelectSelector=lambda *a, **k: None,
+        SelectSelectorConfig=lambda **k: "",
+        SelectSelectorMode=types.SimpleNamespace(DROPDOWN="dropdown"),
+    )
+    entity = types.ModuleType("homeassistant.helpers.entity")
+    entity.DeviceInfo = dict
+    entity.EntityCategory = types.SimpleNamespace(
+        CONFIG="config", DIAGNOSTIC="diagnostic"
+    )
+    helpers.entity = entity
+    entity_platform = types.ModuleType("homeassistant.helpers.entity_platform")
+    entity_platform.AddEntitiesCallback = object
+    helpers.entity_platform = entity_platform
+
+    # t37 D2: homeassistant.helpers.redact.async_redact_data — the REAL helper
+    # (diagnostics.py imports it at module scope; `homeassistant.util.diagnostic`
+    # never existed). Modelled faithfully: the same masking of keys found in
+    # ``to_redact``, the same nested mapping/list recursion, the same skip of
+    # None/empty-string values.
+    redact = types.ModuleType("homeassistant.helpers.redact")
+    redact.REDACTED = "**REDACTED**"
+
+    def _stub_async_redact_data(data, to_redact):
+        if not isinstance(data, (Mapping, list)):
+            return data
+        if isinstance(data, list):
+            return [_stub_async_redact_data(val, to_redact) for val in data]
+        redacted = {**data}
+        for key, value in redacted.items():
+            if value is None:
+                continue
+            if isinstance(value, str) and not value:
+                continue
+            if key in to_redact:
+                if isinstance(to_redact, Mapping):
+                    redacted[key] = to_redact[key](value)
+                else:
+                    redacted[key] = redact.REDACTED
+            elif isinstance(value, Mapping):
+                redacted[key] = _stub_async_redact_data(value, to_redact)
+            elif isinstance(value, list):
+                redacted[key] = [
+                    _stub_async_redact_data(item, to_redact) for item in value
+                ]
+        return redacted
+
+    redact.async_redact_data = _stub_async_redact_data
+    helpers.redact = redact
+    sys.modules["homeassistant.helpers.redact"] = redact
+
+    sys.modules["homeassistant.helpers.event"] = event
+    sys.modules["homeassistant.helpers.entity"] = entity
+    sys.modules["homeassistant.helpers.entity_platform"] = entity_platform
+
+    # t44: config_flow imports `selector` from this package, and the per-file stub
+    # installers register it as its own face. Installing it here too keeps
+    # `_STUB_FACES` honest: install() then really does provide every face a test
+    # file may have popped, which is what its guard checks.
+    selector = types.ModuleType("homeassistant.helpers.selector")
+    install_selector_faces(selector)
+    selector.SelectSelector = lambda *args, **kwargs: None
+    selector.SelectSelectorConfig = lambda **kwargs: ""
+    selector.SelectSelectorMode = types.SimpleNamespace(DROPDOWN="dropdown")
+    helpers.selector = selector
+    sys.modules["homeassistant.helpers.selector"] = selector
+
+    sys.modules["homeassistant.helpers"] = helpers
+
+
+#: Namespaces the stub harness owns. Anything under these prefixes that a test
+#: file creates is harness state, so a file's teardown must remove it: a module
+#: left behind keeps the stub objects it captured (an exception class, the redact
+#: helper the diagnostics module holds) after the next file rebuilt them, which is
+#: how a file-order-dependent failure looked (t44).
+_TRACKED_PREFIXES = ("homeassistant", "voluptuous", "nsh")
+
+
+def _tracked(name: str) -> bool:
+    return name.split(".", 1)[0] in _TRACKED_PREFIXES
+
+
+def snapshot_modules() -> dict:
+    """Every stub/module name live right now — for a leak-free teardown."""
+    return {name: module for name, module in sys.modules.items() if _tracked(name)}
+
+
+def restore_modules(snapshot: dict) -> None:
+    """Undo everything the current test file did to those namespaces.
+
+    Two halves, and the first is what a hand-written list of names kept getting
+    wrong: drop every tracked name the file created (so the next file loads it
+    fresh, against ITS stubs), then put back every object it replaced.
+    """
+    for name in [name for name in sys.modules if _tracked(name) and name not in snapshot]:
+        del sys.modules[name]
+    sys.modules.update(snapshot)
+
+
+def load_entity_modules() -> dict:
+    """Load the integration's HA-free-ish entity modules under nsh."""
+    install()
+    from conftest import _SHIELD_DIR, _load_module
+
+    for name in (
+        "helpers",
+        "power",
+        "jellyfin",
+        "sensor",
+        "media_player",
+        "remote",
+        "diagnostics",
+        # t41: button.py was the file nobody loaded — a deleted helper it still
+        # imported shipped silently. It is a platform like the others, so it
+        # belongs here; tests/test_module_coverage.py sweeps EVERY module, which
+        # is what keeps this list from having to be complete.
+        "button",
+        "init",
+    ):  # "init" maps the integration __init__.py (t29 G8 async_setup)
+        if name == "init" and "nsh.init" in sys.modules:
+            continue
+        if f"nsh.{name}" not in sys.modules:
+            file_name = "__init__.py" if name == "init" else f"{name}.py"
+            _load_module(f"nsh.{name}", _SHIELD_DIR / file_name)
+    return {
+        name: sys.modules[f"nsh.{name}"]
+        for name in (
+            "power",
+            "jellyfin",
+            "sensor",
+            "media_player",
+            "remote",
+            "diagnostics",
+        )
+    }
+
+
+class FakeState:
+    """The fields entity code actually reads off an HA ``State`` (t61)."""
+
+    def __init__(self, entity_id, state, attributes=None):
+        self.entity_id = entity_id
+        self.state = state
+        self.attributes = dict(attributes or {})
+
+
+class FakeStates:
+    """A dict-backed stand-in for HA's StateMachine (t61).
+
+    Only the read shape entities use: ``get(entity_id)`` returns the state
+    object, or None for an entity that does not exist — exactly what the real
+    machine returns. ``set`` is a test's way of giving an entity a state.
+    """
+
+    def __init__(self):
+        self._states: dict = {}
+
+    def set(self, entity_id, state, attributes=None):
+        self._states[entity_id] = FakeState(entity_id, state, attributes)
+
+    def get(self, entity_id):
+        return self._states.get(entity_id)
+
+
+class FakeHass:
+    """Sized to entity unit tests: background tasks + no-op call_later.
+
+    ``states`` is the real HomeAssistant shape (every hass has one), so entity
+    code that reads a linked entity works unmodified; it is empty until a test
+    sets something.
+    """
+
+    def __init__(self):
+        self.states = FakeStates()
+
+    def async_create_task(self, coro):
+        return asyncio.create_task(coro)
+
+    def async_call_later(self, delay, callback_fn):
+        return lambda: None

tests/fixtures/activity_activities_tivimate.txt

@@ -0,0 +1,5 @@
+mResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}
+              state=RESUMED stopped=false delayedResume=false finishing=false
+      Resumed activities in task display areas (from top to bottom):
+        Resumed: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}
+      ResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}

tests/fixtures/activity_recents_synthetic.txt

@@ -0,0 +1,12 @@
+SYNTHETIC fixture — not a real device capture. The real Shield `dumpsys
+activity recents` capture (R6) is still outstanding; this file pins the
+parsing contract of AdbClientBase.poll_running_apps in the meantime, covering
+both the A=uid:package and the I=package/activity fallback patterns.
+Represents the post-grep output of:
+  dumpsys activity recents 2>/dev/null | grep -E 'Recent #|realActivity|visible='
+Note: line order = recency order (most recently used first).
+* Recent #0: Task{2c9f81f #817 type=standard A=10185:ar.tvplayer.tv I=ar.tvplayer.tv/.ui.MainActivity ... visible=true numActivities=1 ...}
+* Recent #1: Task{3dae20b #802 type=standard A=10106:com.github.damontecres.wholphin ...  visible=false numActivities=1 ...}
+* Recent #2: Task{4b7ce01 #788 type=standard I=com.example.launcherapp/.ui.HomeActivity ... visible=true ...}
+* Recent #3: Task{5c8dd12 #770 type=standard A=1000:com.android.systemui ... visible=true ...}
+* Recent #4: Task{6d9ef23 #750 type=unknown A=10003:.HiddenInternalTask ... visible=true ...}

tests/fixtures/dumpsys_power_wakefulness_asleep.txt

@@ -0,0 +1,2 @@
+mWakefulness=Asleep
+  mWakefulnessChanging=false

tests/fixtures/dumpsys_power_wakefulness_awake.txt

@@ -0,0 +1,2 @@
+mWakefulness=Awake
+  mWakefulnessChanging=false

tests/fixtures/media_session_tivimate.txt

@@ -0,0 +1,33 @@
+MEDIA SESSION SERVICE (dumpsys media_session)
+
+ 9 sessions listeners.
+ Global priority session is null
+ User Records:
+ Record for full_user=0
+   Volume key long-press listener: null
+   Volume key long-press listener package:
+   Media key listener: null
+   Media key listener package:
+   OnMediaKeyEventDispatchedListener: added 0 listener(s)
+   OnMediaKeyEventSessionChangedListener: added 1 listener(s)
+     from com.android.bluetooth
+   Last MediaButtonReceiver: null
+   Media button session is null
+   Sessions Stack - have 1 sessions:
+     Netflix media session com.netflix.ninja/Netflix media session (userId=0)
+       ownerPid=5833, ownerUid=10080, userId=0
+       package=com.netflix.ninja
+       launchIntent=null
+       mediaButtonReceiver=null
+       active=false
+       flags=3
+       rating type=0
+       controllers: 0
+       state=null
+       audioAttrs=AudioAttributes: usage=USAGE_MEDIA content=CONTENT_TYPE_UNKNOWN flags=0x800 tags= bundle=null
+       volumeType=1, controlType=2, max=0, current=0
+       metadata: null
+       queueTitle=null, size=0
+ Audio playback (lastly played comes first)
+   uid=10117 packages=ar.tvplayer.tv
+   uid=10006 packages=com.google.android.apps.mediashell

tests/fixtures/media_session_wholphin.txt

@@ -0,0 +1,23 @@
+MEDIA SESSION SERVICE (dumpsys media_session)
+
+ 9 sessions listeners.
+ User Records:
+ Record for full_user=0
+   Media button session is null
+   Sessions Stack - have 1 sessions:
+     Wholphin media session com.github.damontecres.wholphin/Wholphin media session (userId=0)
+       ownerPid=6117, ownerUid=10117, userId=0
+       package=com.github.damontecres.wholphin
+       launchIntent=null
+       mediaButtonReceiver=null
+       active=true
+       flags=3
+       rating type=0
+       controllers: 1
+       state=PlaybackState {state=3, position=17237, buffered position=70070, speed=1.0, updated=1408392, actions=7339995, custom actions=[], active item id=0, error=null}
+       audioAttrs=AudioAttributes: usage=USAGE_MEDIA content=CONTENT_TYPE_MOVIE flags=0x800 tags= bundle=null
+       volumeType=1, controlType=2, max=0, current=0
+       metadata: size=11, description=Twirlywoos, null, null
+       queueTitle=null, size=1
+ Audio playback (lastly played comes first)
+   uid=10117 packages=com.github.damontecres.wholphin

tests/test_adb_client.py

@@ -0,0 +1,208 @@
+"""Tests for AdbClientBase additions: exact wakefulness parse (R5),
+health_check(), and optional media-session truncation (plan blocker B4).
+
+The client runs against a FakeDevice recording shell commands — no real ADB
+socket or adb_shell import is needed.
+"""
+
+from pathlib import Path
+
+from ha_adb_common.adb_client import AdbClientBase, parse_wakefulness
+
+FIXTURES = Path(__file__).parent / "fixtures"
+
+CMD_WAKEFULNESS = "dumpsys power 2>/dev/null | grep mWakefulness"
+CMD_MEDIA_DEFAULT = "dumpsys media_session 2>/dev/null | head -200"
+CMD_MEDIA_FULL = "dumpsys media_session 2>/dev/null"
+CMD_ECHO_OK = "echo ok"
+
+
+class FakeDevice:
+    """Records shell commands and returns canned responses per command."""
+
+    def __init__(self, responses=None):
+        self._responses = dict(responses or {})
+        self.commands: list[str] = []
+
+    async def shell(self, cmd: str) -> str | None:
+        self.commands.append(cmd)
+        response = self._responses.get(cmd)
+        if isinstance(response, Exception):
+            raise response
+        return response
+
+
+def _client_response(cmd: str, response: str | None) -> AdbClientBase:
+    """A client whose (fake) device is already connected and answers cmd."""
+    client = AdbClientBase("shield.local", 5555, "/dev/null/adbkey")
+    client._device = FakeDevice({cmd: response})
+    client._connected = True  # skip connect(): no adb_shell in the test env
+    return client
+
+
+class TestParseWakefulness:
+    """Exact-value mWakefulness= parse; mWakefulnessChanging excluded."""
+
+    def test_awake_fixture(self):
+        text = (FIXTURES / "dumpsys_power_wakefulness_awake.txt").read_text()
+        assert parse_wakefulness(text) is True
+
+    def test_asleep_fixture(self):
+        text = (FIXTURES / "dumpsys_power_wakefulness_asleep.txt").read_text()
+        assert parse_wakefulness(text) is False
+
+    def test_known_asleep_values(self):
+        assert parse_wakefulness("mWakefulness=Asleep") is False
+        assert parse_wakefulness("mWakefulness=Dozing") is False
+        assert parse_wakefulness("mWakefulness=Dozing-suspend") is False
+
+    def test_unknown_value_is_unknown_not_awake(self):
+        """The old substring heuristic read any future value containing no
+        'Awake' as asleep; unrecognized values must be None (captain's note)."""
+        assert parse_wakefulness("mWakefulness=Dozing-ext") is None
+        assert parse_wakefulness("mWakefulness=123") is None
+
+    def test_changing_and_setting_lines_are_ignored(self):
+        assert (
+            parse_wakefulness("  mWakefulnessChanging=false") is None
+        )
+        assert parse_wakefulness("  mWakefulnessSetting=2") is None
+
+    def test_assignment_wins_over_changing_line(self):
+        text = "  mWakefulnessChanging=false\nmWakefulness=Awake\n"
+        assert parse_wakefulness(text) is True
+
+    def test_empty_input(self):
+        assert parse_wakefulness("") is None
+        assert parse_wakefulness(None) is None
+        assert parse_wakefulness("no match here") is None
+
+
+class TestIsAwake:
+    async def test_awake(self):
+        client = _client_response(
+            CMD_WAKEFULNESS,
+            (FIXTURES / "dumpsys_power_wakefulness_awake.txt").read_text(),
+        )
+        assert await client.is_awake() is True
+        assert client._device.commands == [CMD_WAKEFULNESS]
+
+    async def test_asleep(self):
+        client = _client_response(
+            CMD_WAKEFULNESS,
+            (FIXTURES / "dumpsys_power_wakefulness_asleep.txt").read_text(),
+        )
+        assert await client.is_awake() is False
+
+    async def test_unknown_reports_none(self):
+        """A garbage/empty grep result parses to None, not False."""
+        client = _client_response(CMD_WAKEFULNESS, "")
+        assert await client.is_awake() is None
+
+
+class TestHealthCheck:
+    async def test_echo_ok_round_trip_is_healthy(self):
+        client = _client_response(CMD_ECHO_OK, "ok\n")
+        assert await client.health_check() is True
+
+    async def test_failed_shell_is_unhealthy(self):
+        client = _client_response(CMD_ECHO_OK, Exception("socket closed"))
+        assert await client.health_check() is False
+        assert client.connected is False  # shell() marked the socket broken
+
+    async def test_wrong_body_is_unhealthy(self):
+        client = _client_response(CMD_ECHO_OK, "something else\n")
+        assert await client.health_check() is False
+
+
+class TestPollMediaSessionsTruncation:
+    async def test_default_truncates_at_200(self):
+        client = _client_response(CMD_MEDIA_DEFAULT, "")
+        assert await client.poll_media_sessions() is None
+        assert client._device.commands == [CMD_MEDIA_DEFAULT]
+
+    async def test_explicit_head_lines(self):
+        client = _client_response("dumpsys media_session 2>/dev/null | head -80", "")
+        await client.poll_media_sessions(head_lines=80)
+        assert client._device.commands == [
+            "dumpsys media_session 2>/dev/null | head -80"
+        ]
+
+    async def test_none_head_lines_fetches_full_dump(self):
+        """None = no truncation — the manager later passes None (B4)."""
+        wholphin = (FIXTURES / "media_session_wholphin.txt").read_text()
+        client = _client_response(CMD_MEDIA_FULL, wholphin)
+        info = await client.poll_media_sessions(head_lines=None)
+        assert client._device.commands == [CMD_MEDIA_FULL]
+        assert info is not None
+        assert info.package == "com.github.damontecres.wholphin"
+        assert info.position == 17237
+        assert client.all_sessions[0].playing is True
+
+    async def test_failed_shell_returns_none_without_reparsing(self):
+        client = _client_response(CMD_MEDIA_DEFAULT, Exception("dead"))
+        assert await client.poll_media_sessions() is None
+        assert client.last_info is None
+
+
+class TestPollRunningApps:
+    """Recent-task parsing against the SYNTHETIC recents fixture.
+
+    The real Shield `dumpsys activity recents` capture (R6) is still
+    outstanding; tests/fixtures/activity_recents_synthetic.txt pins the
+    parsing contract in the meantime.
+    """
+
+    async def test_parses_visible_user_apps_in_recency_order(self):
+        recents = (FIXTURES / "activity_recents_synthetic.txt").read_text()
+        client = _client_response(
+            "dumpsys activity recents 2>/dev/null "
+            "| grep -E 'Recent #|realActivity|visible='",
+            recents,
+        )
+        apps = await client.poll_running_apps()
+        assert [a["package"] for a in apps] == [
+            "ar.tvplayer.tv",
+            "com.example.launcherapp",
+        ]
+
+    async def test_i_pattern_fallback_used_without_a_uid_assignment(self):
+        """`I=com.example.launcherapp/.ui.HomeActivity` is the only package
+        fragment on its line and must be picked up by the fallback regex."""
+        recents = (FIXTURES / "activity_recents_synthetic.txt").read_text()
+        client = _client_response(
+            "dumpsys activity recents 2>/dev/null "
+            "| grep -E 'Recent #|realActivity|visible='",
+            recents,
+        )
+        apps = await client.poll_running_apps()
+        assert "com.example.launcherapp" in {a["package"] for a in apps}
+
+    async def test_skips_invisible_tasks_system_packages_and_dot_names(self):
+        recents = (FIXTURES / "activity_recents_synthetic.txt").read_text()
+        client = _client_response(
+            "dumpsys activity recents 2>/dev/null "
+            "| grep -E 'Recent #|realActivity|visible='",
+            recents,
+        )
+        apps = await client.poll_running_apps()
+        packages = {a["package"] for a in apps}
+        assert "com.github.damontecres.wholphin" not in packages  # visible=false
+        assert "com.android.systemui" not in packages  # excluded system UI
+        assert ".HiddenInternalTask" not in packages  # dot-named internals
+
+    async def test_empty_result_returns_empty_list(self):
+        client = _client_response(
+            "dumpsys activity recents 2>/dev/null "
+            "| grep -E 'Recent #|realActivity|visible='",
+            None,
+        )
+        assert await client.poll_running_apps() == []
+
+    async def test_failed_shell_returns_empty_list(self):
+        client = _client_response(
+            "dumpsys activity recents 2>/dev/null "
+            "| grep -E 'Recent #|realActivity|visible='",
+            Exception("offline"),
+        )
+        assert await client.poll_running_apps() == []

tests/test_command_scripts.py

@@ -0,0 +1,443 @@
+"""tests/test_command_scripts.py — per-command script overrides (t44).
+
+The user's remaining universal-media-player dependency: some commands need hardware
+this integration deliberately does not drive — a speaker switch that owns the
+volume, an AVR input that has to move with the Shield, a mute that has to hit two
+devices. One script per command is the escape hatch, and the rule is absolute:
+
+  configured  -> that command calls the script, with its variables, and never
+                 touches the protocol or ADB path;
+  unset       -> the command behaves exactly as it did before this existed.
+
+The suite is expected to stay quiet about the first case elsewhere: nothing else may
+start calling services, which is why tests/test_command_routing.py asserts that no
+service call happens on the native paths.
+"""
+
+from types import SimpleNamespace
+
+import entity_stublib
+import pytest
+from nsh.const import (
+    CONF_COMMAND_SCRIPTS,
+    CONF_REMOTE_COMMAND_SCRIPT,
+    SCRIPT_VAR_APP_NAME,
+    SCRIPT_VAR_COMMAND,
+    SCRIPT_VAR_DELAY_SECS,
+    SCRIPT_VAR_HOLD_SECS,
+    SCRIPT_VAR_LEVEL,
+    SCRIPT_VAR_MUTED,
+    SCRIPT_VAR_NUM_REPEATS,
+)
+from test_command_routing import _remote_entity, make_manager, make_player
+
+#: Commands with no data to pass — the script is called with the entity only.
+PLAIN_COMMANDS = ("turn_on", "turn_off", "volume_up", "volume_down")
+
+WATCH = "script.shield_watch"
+
+
+@pytest.fixture(name="modules", autouse=True)
+def scoped_modules():
+    """Stub scope + loaded entity modules for one test, restored afterwards.
+
+    The t7 discipline: without the teardown this file's `nsh.*` modules and stub
+    faces survive into whichever file runs next, and the next file's flow/entity
+    classes bind against the wrong faces (the t44 file-order failure).
+    """
+    snapshot = entity_stublib.snapshot_modules()
+    entity_stublib.install()
+    try:
+        yield entity_stublib.load_entity_modules()
+    finally:
+        entity_stublib.restore_modules(snapshot)
+
+
+def _services(served):
+    """A hass.services stand-in that records (domain, service, data)."""
+
+    class _RecordingServices:
+        async def async_call(self, domain, service, data=None, **kwargs):
+            served.append((domain, service, data))
+
+    return _RecordingServices()
+
+
+def _player(modules, scripts=None, *, is_on=None):
+    player, served, _intents = make_player(modules)
+    if is_on is not None:
+        player._manager._on_is_on(is_on)
+    if scripts is not None:
+        player._entry.options[CONF_COMMAND_SCRIPTS] = scripts
+    player.hass.services = _services(served)
+    return player, served
+
+
+def _script_call(script=WATCH, variables=None):
+    data = {"entity_id": script}
+    if variables:
+        data["variables"] = variables
+    return ("script", "turn_on", data)
+
+
+class TestMappedCommands:
+    """A configured script replaces the native path — for every command."""
+
+    @pytest.mark.parametrize("command", PLAIN_COMMANDS)
+    async def test_a_plain_command_calls_its_script_and_nothing_else(
+        self, modules, command
+    ):
+        # every native path would have had work to do: ADB is up, and for the
+        # power commands the state gate is open
+        player, served = _player(modules, {command: WATCH}, is_on=command == "turn_off")
+
+        await getattr(player, f"async_{command}")()
+
+        assert served == [_script_call()]
+        assert player._manager._protocol.key_calls == []
+        assert player._manager._poller.media_calls == []
+
+    async def test_volume_set_passes_the_level(self, modules):
+        player, served = _player(modules, {"volume_set": WATCH})
+
+        await player.async_set_volume_level(0.4)
+
+        # exactly the variable name and the value as passed, nothing extra
+        assert served == [_script_call(variables={SCRIPT_VAR_LEVEL: 0.4})]
+        assert player._manager._protocol.key_calls == []
+        assert player._manager._poller.media_calls == []
+
+    @pytest.mark.parametrize("mute", [True, False])
+    async def test_volume_mute_passes_the_requested_state(self, modules, mute):
+        """A script cannot tell mute from unmute without this."""
+        player, served = _player(modules, {"volume_mute": WATCH})
+
+        await player.async_mute_volume(mute)
+
+        assert served == [_script_call(variables={SCRIPT_VAR_MUTED: mute})]
+        assert player._manager._protocol.key_calls == []
+        assert player._manager._poller.media_calls == []
+
+    async def test_select_source_passes_the_app_name(self, modules):
+        player, served = _player(modules, {"select_source": WATCH})
+
+        await player.async_select_source("TiviMate")
+
+        assert served == [_script_call(variables={SCRIPT_VAR_APP_NAME: "TiviMate"})]
+
+    async def test_the_remote_entity_shares_the_same_turn_on_script(self, modules):
+        """There are two routes to POWER; one configuration governs both."""
+        entity = _remote_entity(modules)
+        served = []
+        entity.hass = SimpleNamespace(services=_services(served))
+        entity._entry.options[CONF_COMMAND_SCRIPTS] = {"turn_on": WATCH}
+        entity._manager._on_is_on(False)  # the native path would fire
+
+        await entity.async_turn_on()
+
+        assert served == [_script_call()]
+        assert entity._manager._protocol.key_calls == []
+
+
+class TestUnmappedCommands:
+    """With nothing configured, every command keeps its native path."""
+
+    async def test_no_service_call_happens_at_all(self, modules):
+        player, served = _player(modules, {}, is_on=False)
+
+        await player.async_turn_on()
+        await player.async_volume_up()
+
+        assert served == []  # nothing left the integration
+
+    async def test_turn_on_still_sends_the_protocol_power_key(self, modules):
+        player, _served = _player(modules, {}, is_on=False)
+
+        await player.async_turn_on()
+
+        assert player._manager._protocol.key_calls == [("KEYCODE_POWER", "SHORT")]
+
+    async def test_volume_up_still_uses_the_native_protocol_key(self, modules):
+        from nsh.const import PROTOCOL_REMOTE_KEYS
+
+        player, _served = _player(modules, {})
+
+        await player.async_volume_up()
+
+        assert player._manager._protocol.key_calls == [
+            (PROTOCOL_REMOTE_KEYS["volume_up"], "SHORT")
+        ]
+
+    async def test_volume_up_still_falls_through_to_adb(self, modules):
+        """The second native tier, reached exactly when the protocol is down."""
+        player, _served = _player(modules, {})
+        player._manager._protocol = None
+
+        await player.async_volume_up()
+
+        assert player._manager._poller.media_calls == ["volume_up"]
+
+    async def test_volume_set_without_a_script_stays_a_no_op(self, modules):
+        """Absolute volume exists ONLY through a script (the protocol has no
+        VOLUME_SET key), so unconfigured it sends nothing — never a crash."""
+        player, served = _player(modules, {})
+
+        await player.async_set_volume_level(0.4)
+
+        assert served == []
+        assert player._manager._protocol.key_calls == []
+        assert player._manager._poller.media_calls == []
+
+    async def test_other_commands_are_unaffected_by_a_mapped_one(self, modules):
+        from nsh.const import PROTOCOL_REMOTE_KEYS
+
+        player, served = _player(modules, {"volume_up": WATCH})
+
+        await player.async_volume_down()
+
+        assert served == []
+        assert player._manager._protocol.key_calls == [
+            (PROTOCOL_REMOTE_KEYS["volume_down"], "SHORT")
+        ]
+
+
+class TestScriptFailures:
+    """A mapped command that cannot run must be visible, never a silent no-op."""
+
+    async def test_a_raising_script_surfaces_a_clean_error(self, modules):
+        from homeassistant.exceptions import ServiceValidationError
+
+        player, _served = _player(modules, {"volume_up": WATCH}, is_on=False)
+
+        class _FailingServices:
+            async def async_call(self, domain, service, data=None, **kwargs):
+                raise RuntimeError("speaker switch is offline")
+
+        player.hass.services = _FailingServices()
+
+        with pytest.raises(ServiceValidationError) as raised:
+            await player.async_volume_up()
+
+        # translated (t47): the command, the script and the cause are placeholders
+        assert raised.value.translation_domain == "nvidia_shield"
+        assert raised.value.translation_key == "command_script_failed"
+        assert raised.value.translation_placeholders == {
+            "action": "volume_up",
+            "script": WATCH,
+            "error": "speaker switch is offline",
+        }
+        # ...and it did NOT quietly fall back to the native path
+        assert player._manager._protocol.key_calls == []
+        assert player._manager._poller.media_calls == []
+
+
+class TestOptionShape:
+    """The stored option is read through one normalizer, defensively."""
+
+    @pytest.mark.parametrize(
+        "stored",
+        [
+            "script.watch",  # not a dict at all
+            {"turn_on": 5},  # not an entity id
+            {"turn_on": "   "},  # empty
+            {"bogus_command": WATCH},  # unknown command
+            None,
+        ],
+    )
+    async def test_a_hand_edited_option_never_reaches_the_service_layer(
+        self, modules, stored
+    ):
+        player, served = _player(modules, stored, is_on=False)
+
+        await player.async_turn_on()
+
+        assert served == []
+        assert player._manager._protocol.key_calls == [("KEYCODE_POWER", "SHORT")]
+
+    async def test_a_padded_entity_id_is_trimmed(self, modules):
+        player, served = _player(modules, {"turn_on": f"  {WATCH}  "}, is_on=False)
+
+        await player.async_turn_on()
+
+        assert served == [_script_call()]
+
+
+class TestFeatureSet:
+    """A script-only command still has to be reachable, so it is advertised."""
+
+    def _features(self, player):
+        return int(player.supported_features)
+
+    def test_volume_set_appears_only_when_configured(self, modules):
+        """volume_set has no native path at all, so the script is the only reach."""
+        from homeassistant.components.media_player import MediaPlayerEntityFeature
+
+        player, _served = _player(modules, {})
+        baseline = self._features(player)
+        assert baseline & int(MediaPlayerEntityFeature.VOLUME_SET) == 0
+
+        player._entry.options[CONF_COMMAND_SCRIPTS] = {"volume_set": WATCH}
+        with_volume = self._features(player)
+
+        assert with_volume & int(MediaPlayerEntityFeature.VOLUME_SET)
+        # ...and nothing else moved
+        assert with_volume & ~int(MediaPlayerEntityFeature.VOLUME_SET) == baseline
+
+    def test_select_source_is_advertised_once_there_is_something_to_offer(
+        self, modules
+    ):
+        """t47: either a script OR a source list is enough — the native path exists
+        now, so an unconfigured integration still has sources to offer."""
+        from homeassistant.components.media_player import MediaPlayerEntityFeature
+
+        player, _served = _player(modules, {})
+        flagged = self._features(player)
+
+        assert flagged & int(MediaPlayerEntityFeature.SELECT_SOURCE)
+        # a configured script changes nothing about the flag
+        player._entry.options[CONF_COMMAND_SCRIPTS] = {"select_source": WATCH}
+        assert self._features(player) & int(MediaPlayerEntityFeature.SELECT_SOURCE)
+
+    def test_a_script_for_an_already_advertised_command_changes_nothing(self, modules):
+        player, _served = _player(modules, {})
+        baseline = self._features(player)
+
+        player._entry.options[CONF_COMMAND_SCRIPTS] = {"turn_on": WATCH}
+
+        assert self._features(player) == baseline
+
+
+def test_the_remote_entry_options_are_the_media_player_options(modules):
+    """Both entities read the same option key — pinned so they cannot drift."""
+    player, _served = _player(modules, {"turn_on": WATCH})
+    entity = _remote_entity(modules)
+    entity._entry.options[CONF_COMMAND_SCRIPTS] = {"turn_on": WATCH}
+
+    assert (
+        player._entry.options[CONF_COMMAND_SCRIPTS]
+        == entity._entry.options[CONF_COMMAND_SCRIPTS]
+    )
+    assert make_manager().entry is None  # the harness's manager starts unbound
+
+
+WATCH_SCRIPT = "script.shield_remote"
+
+
+class TestRemoteCommandScript:
+    """t47 B: one optional script for remote.send_command, replacing the key path.
+
+    A remote command is a SEQUENCE (repeats, long presses, delays), so the escape
+    hatch is one script for the whole call rather than a per-key override: an IR
+    bridge, a macro or a second device needs the call, not the keys.
+    """
+
+    def _entity(self, modules, script=None):
+        entity = _remote_entity(modules)
+        served = []
+        entity.hass = SimpleNamespace(services=_services(served))
+        if script is not None:
+            entity._entry.options[CONF_REMOTE_COMMAND_SCRIPT] = script
+        return entity, served
+
+    async def test_a_configured_script_receives_the_exact_parameters(self, modules):
+        entity, served = self._entity(modules, WATCH_SCRIPT)
+
+        await entity.async_send_command(
+            ["HOME", "KEYCODE_DPAD_CENTER"],
+            num_repeats=3,
+            delay_secs=0.25,
+            hold_secs=1.5,
+        )
+
+        assert served == [
+            (
+                "script",
+                "turn_on",
+                {
+                    "entity_id": WATCH_SCRIPT,
+                    "variables": {
+                        SCRIPT_VAR_COMMAND: ["HOME", "KEYCODE_DPAD_CENTER"],
+                        SCRIPT_VAR_NUM_REPEATS: 3,
+                        SCRIPT_VAR_DELAY_SECS: 0.25,
+                        SCRIPT_VAR_HOLD_SECS: 1.5,
+                    },
+                },
+            )
+        ]
+        assert entity._manager._protocol.key_calls == []  # key path untouched
+
+    async def test_the_service_defaults_are_named_too(self, modules):
+        """The variable set is fixed: a script can rely on all four being present."""
+        entity, served = self._entity(modules, WATCH_SCRIPT)
+
+        await entity.async_send_command(["home"])
+
+        variables = served[0][2]["variables"]
+        assert variables == {
+            SCRIPT_VAR_COMMAND: ["home"],
+            SCRIPT_VAR_NUM_REPEATS: 1,
+            SCRIPT_VAR_DELAY_SECS: 0.0,
+            SCRIPT_VAR_HOLD_SECS: 0.0,
+        }
+
+    async def test_unset_keeps_the_native_key_path(self, modules):
+        entity, served = self._entity(modules)
+
+        await entity.async_send_command(["HOME"], num_repeats=2, hold_secs=0.0)
+
+        assert served == []
+        assert entity._manager._protocol.key_calls == [
+            ("KEYCODE_HOME", "SHORT"),
+            ("KEYCODE_HOME", "SHORT"),
+        ]
+
+    @pytest.mark.parametrize("stored", ["", "   ", None, 7])
+    async def test_a_blank_or_hand_edited_option_means_unset(self, modules, stored):
+        entity, served = self._entity(modules, stored)
+
+        await entity.async_send_command(["HOME"])
+
+        assert served == []
+        assert entity._manager._protocol.key_calls == [("KEYCODE_HOME", "SHORT")]
+
+    async def test_a_raising_script_is_a_translated_error(self, modules):
+        from homeassistant.exceptions import ServiceValidationError
+
+        entity, _served = self._entity(modules, WATCH_SCRIPT)
+
+        class _FailingServices:
+            async def async_call(self, domain, service, data=None, **kwargs):
+                raise RuntimeError("IR bridge is offline")
+
+        entity.hass.services = _FailingServices()
+
+        with pytest.raises(ServiceValidationError) as raised:
+            await entity.async_send_command(["HOME"])
+
+        assert raised.value.translation_domain == "nvidia_shield"
+        assert raised.value.translation_key == "command_script_failed"
+        assert raised.value.translation_placeholders == {
+            "action": "remote.send_command",
+            "script": WATCH_SCRIPT,
+            "error": "IR bridge is offline",
+        }
+        assert entity._manager._protocol.key_calls == []  # never a silent no-op
+
+
+def test_both_new_exception_keys_have_copy_in_both_files():
+    """A raised translation_key with no copy shows the user a bare key."""
+    import json
+    from pathlib import Path
+
+    root = Path(__file__).resolve().parent.parent / "custom_components" / "nvidia_shield"
+    for name in ("strings.json", "translations/en.json"):
+        exceptions = json.loads((root / name).read_text(encoding="utf-8"))["exceptions"]
+        for key in ("unknown_source", "command_script_failed"):
+            assert exceptions[key]["title"], (name, key)
+            assert exceptions[key]["message"], (name, key)
+    assert "{source}" in json.loads(
+        (root / "strings.json").read_text(encoding="utf-8")
+    )["exceptions"]["unknown_source"]["message"]
+    assert "remote_command_script" in json.loads(
+        (root / "translations/en.json").read_text(encoding="utf-8")
+    )["options"]["step"]["init"]["data"]

tests/test_config_flow_pairing.py

@@ -0,0 +1,251 @@
+"""F1 regression: the adb_pair submit path calls
+ShieldConnectionManager.test_connect with its declared signature
+(host, port, key_path) — nothing extra, arity exact.
+
+config_flow.py imports Home Assistant; it is exercised here against small
+module stubs (import-only; no HA behaviour needed on this path) with the
+actual ADB handshake mocked on the manager.
+"""
+
+import sys
+import types
+from unittest.mock import AsyncMock
+
+import entity_stublib
+import pytest
+from conftest import _SHIELD_DIR, _load_module
+from nsh.const import (
+    CONF_ADB_ENABLED,
+    CONF_ADB_PORT,
+    CONF_ADB_STORE_APP_INFO,
+    CONF_HOST,
+    CONF_JELLYFIN_ENTITY,
+    CONF_POWER_ENTITY,
+    CONF_RECEIVER_ENTITY,
+    CONF_RECEIVER_INPUT,
+)
+
+_KEY_PATH = "/tmp/nsh-test-adbkey"
+
+
+_STUB_NAMES = (
+    "voluptuous",
+    "homeassistant",
+    "homeassistant.config_entries",
+    "homeassistant.core",
+    "homeassistant.helpers",
+    "homeassistant.helpers.entity_registry",
+    "homeassistant.helpers.device_registry",
+    "homeassistant.helpers.selector",
+    # Loaded execution runs beneath the stubs; never escape this file either.
+    "nsh.helpers",
+    "nsh.config_flow",
+)
+
+
+def _install_import_stubs() -> None:
+    """Register import-time stand-ins for HA/voluptuous (idempotent)."""
+    if sys.modules.get("voluptuous") is not None:
+        return
+
+    vol = types.ModuleType("voluptuous")
+    vol.Required = lambda key, default=None: key
+    vol.Optional = lambda key, default=None: key
+    vol.Schema = lambda schema: schema
+    sys.modules["voluptuous"] = vol
+
+    ha = types.ModuleType("homeassistant")
+    sys.modules["homeassistant"] = ha
+
+    config_entries = types.ModuleType("homeassistant.config_entries")
+
+    class ConfigFlow:
+        VERSION = 1
+
+        def __init_subclass__(cls, **kwargs):
+            kwargs.pop("domain", None)  # class statement passes domain=DOMAIN
+            super().__init_subclass__(**kwargs)
+
+        def async_show_form(self, *, step_id, data_schema=None, errors=None):
+            return _form(step_id, errors or {})
+
+        def async_show_menu(self, *, step_id=None, menu_options, sort=False,
+                            description_placeholders=None):
+            # t56: the real MENU result shape; the flow manager dispatches the
+            # chosen `next_step_id` to `async_step_<choice>(None)`.
+            return {
+                "type": "menu",
+                "step_id": step_id,
+                "menu_options": list(menu_options),
+                "description_placeholders": dict(
+                    description_placeholders or {}
+                ),
+            }
+
+        def async_create_entry(self, *, title, data, options=None):
+            return {"type": "create_entry", "title": title, "data": data,
+                    "options": options}
+
+    def _form(step_id, errors):
+        return {"type": "form", "step_id": step_id, "errors": dict(errors)}
+
+    config_entries.ConfigFlow = ConfigFlow
+    class _BaseOptionsFlow:
+        pass
+
+    # t29 G3b: the current options-flow API surface on the local stub
+    class _SuggestedMixin:
+        def add_suggested_values_to_schema(self, schema, suggested):
+            schema_dict = getattr(schema, "schema", None) or (
+                schema if isinstance(schema, dict) else {}
+            )
+            schema_dict.setdefault("__suggested__", dict(suggested))
+            return schema
+
+    class OptionsFlowWithReload(_SuggestedMixin):
+        def async_create_entry(self, *, title, data):
+            entry_id = getattr(self.config_entry, "entry_id", None)
+            scheduler = getattr(getattr(self, "hass", None), "config_entries", None)
+            if entry_id is not None and scheduler is not None and hasattr(
+                scheduler, "async_schedule_reload"
+            ):
+                scheduler.async_schedule_reload(entry_id)
+            return {"type": "create_entry", "title": title, "data": data}
+
+    config_entries.OptionsFlow = _BaseOptionsFlow
+    config_entries.OptionsFlowWithReload = OptionsFlowWithReload
+    sys.modules["homeassistant.config_entries"] = config_entries
+
+    core = types.ModuleType("homeassistant.core")
+    core.HomeAssistant = object
+    core.callback = lambda fn: fn
+    sys.modules["homeassistant.core"] = core
+
+    helpers = types.ModuleType("homeassistant.helpers")
+    entity_registry = types.ModuleType("homeassistant.helpers.entity_registry")
+
+    class _Registry:
+        entities: dict = {}
+
+        def async_get(self, entity_id):
+            return None
+
+    entity_registry.async_get = lambda hass: _Registry()
+    helpers.entity_registry = entity_registry
+    sys.modules["homeassistant.helpers.entity_registry"] = entity_registry
+    sys.modules["homeassistant.helpers"] = helpers
+
+    device_registry = types.ModuleType("homeassistant.helpers.device_registry")
+    device_registry.async_get = lambda hass: types.SimpleNamespace(devices={})
+    helpers.device_registry = device_registry
+    sys.modules["homeassistant.helpers.device_registry"] = device_registry
+    selector = types.ModuleType("homeassistant.helpers.selector")
+    entity_stublib.install_selector_faces(selector)
+    sys.modules["homeassistant.helpers.selector"] = selector
+
+
+class _Config:
+    config_dir = "/tmp/nsh-test-config"
+
+
+class _FakeHass:
+    config = _Config
+
+
+    @staticmethod
+    async def async_add_executor_job(fn, *args):
+        return fn(*args)
+
+
+def _config_flow_module():
+    _install_import_stubs()
+    if "nsh.helpers" not in sys.modules:
+        _load_module("nsh.helpers", _SHIELD_DIR / "helpers.py")
+    if "nsh.config_flow" not in sys.modules:
+        _load_module("nsh.config_flow", _SHIELD_DIR / "config_flow.py")
+    return sys.modules["nsh.config_flow"]
+
+
+def _flow(user_input_host: str, monkeypatch=None):
+    module = _config_flow_module()
+    flow = module.NvidiaShieldConfigFlow()
+    flow.hass = _FakeHass
+    flow._user_data = {
+        "name": "Nvidia Shield",
+        CONF_ADB_ENABLED: True,
+        CONF_HOST: user_input_host,
+        CONF_ADB_PORT: 5555,
+        CONF_JELLYFIN_ENTITY: "",
+        CONF_RECEIVER_ENTITY: "",
+        CONF_RECEIVER_INPUT: "",
+        CONF_POWER_ENTITY: "",
+        CONF_ADB_STORE_APP_INFO: True,
+    }
+    if monkeypatch is not None:
+        # Patch module-level resolution — the call site is a plain global.
+        monkeypatch.setattr(
+            module, "ensure_adb_key", lambda _config_dir: _KEY_PATH
+        )
+    return flow
+
+
+@pytest.fixture(autouse=True)
+def scoped_stubs():
+    """Contain the import stubs to this module's tests (t7 INFO).
+
+    Snapshots every injected sys.modules entry and restores or removes it on
+    teardown, so later tests never observe the fake homeassistant/voluptuous
+    (nor the stub-loaded nsh.helpers/nsh.config_flow) modules.
+    """
+    snapshot = entity_stublib.snapshot_modules()
+    _install_import_stubs()
+    yield
+    entity_stublib.restore_modules(snapshot)
+
+
+@pytest.fixture
+def mocked_test_connect(monkeypatch):
+    from nsh.connection import ShieldConnectionManager
+
+    mock = AsyncMock(return_value=True)
+    monkeypatch.setattr(ShieldConnectionManager, "test_connect", mock)
+    # Preload + patch the lazy-loaded config-flow module's ensure_adb_key
+    # (no key material — and no adb_shell keygen — during tests).
+    module = _config_flow_module()
+    monkeypatch.setattr(module, "ensure_adb_key", lambda _config_dir: _KEY_PATH)
+    return mock
+
+
+async def test_pairing_submit_uses_declared_signature(mocked_test_connect):
+    """F1 (HIGH): exactly (host, port, key_path) — no inherited hass arg."""
+    flow = _flow("shield.local")
+
+    result = await flow.async_step_adb_pair({"submit": True})
+
+    mocked_test_connect.assert_awaited_once_with(
+        "shield.local", 5555, _KEY_PATH
+    )
+    # t56: the pairing hands over to the setup menu; Finish creates the entry
+    assert result["type"] == "menu"
+    result = await flow.async_step_finish(None)
+    assert result["type"] == "create_entry"
+
+
+async def test_pairing_submit_reports_adb_failed_on_false(mocked_test_connect):
+    flow = _flow("shield.local")
+    mocked_test_connect.return_value = False
+
+    result = await flow.async_step_adb_pair({"submit": True})
+
+    mocked_test_connect.assert_awaited_once()
+    assert result["type"] == "form"
+    assert result["errors"] == {"base": "adb_failed"}
+
+
+async def test_pairing_submit_without_host_reports_error(mocked_test_connect):
+    flow = _flow("")  # no host resolvable
+
+    result = await flow.async_step_adb_pair({"submit": True})
+
+    mocked_test_connect.assert_not_awaited()
+    assert result["errors"] == {"base": "adb_no_host"}

tests/test_config_flow_protocol.py

@@ -0,0 +1,514 @@
+"""Phase 2 step 2 tests: protocol cert/PIN pairing, reauth, entry migration.
+
+Self-contained scoped-stub variant of the config-flow test harness (same
+pattern as test_config_flow_pairing.py, with pair-hygiene capabilities added:
+FakeHass records unique_id sets, entry updates and reload scheduling). The
+androidtvremote2 client is faked with a deterministic pairing code and MAC.
+"""
+
+import asyncio  # noqa: F401  (async steps need the event loop)
+import sys
+import types
+from types import SimpleNamespace
+
+import entity_stublib
+import pytest
+from conftest import _SHIELD_DIR, _load_module
+from nsh.const import (
+    CONF_ADB_ENABLED,
+    CONF_ADB_HOST,
+    CONF_ADB_PORT,
+    CONF_ADB_STORE_APP_INFO,
+    CONF_HOST,
+    CONF_JELLYFIN_ENTITY,
+    CONF_PAIRING_CODE,
+    CONF_POWER_ENTITY,
+    CONF_PROTOCOL_ENABLED,
+    CONF_PROTOCOL_HOST,
+    CONF_RECEIVER_ENTITY,
+    CONF_RECEIVER_INPUT,
+    DEFAULT_ADB_PORT,
+)
+
+_STUB_NAMES = (
+    "voluptuous",
+    "homeassistant",
+    "homeassistant.config_entries",
+    "homeassistant.core",
+    "homeassistant.const",
+    "homeassistant.helpers",
+    "homeassistant.helpers.entity_registry",
+    "homeassistant.helpers.device_registry",
+    "homeassistant.helpers.selector",
+    "nsh.helpers",
+    "nsh.config_flow",
+    "nsh.entry",
+)
+
+FAKE_PAIRING_CODE = "8421"
+FAKE_DEVICE_NAME = "mdarcy"
+FAKE_MAC = "aa:bb:cc:dd:ee:ff"
+
+
+class FakeInvalidAuthError(Exception):
+    """androidtvremote2.exceptions.InvalidAuth stand-in."""
+
+
+class FakeProtocolClient:
+    """Proto client used by the flow pairing path (deterministic)."""
+
+    def __init__(self, fail_code=False):
+        self.cert_generated = False
+        self.pairing_started = False
+        self.finished_codes: list[str] = []
+        self.disconnected = 0
+        self._fail_code = fail_code
+
+    async def async_generate_cert_if_missing(self):
+        self.cert_generated = True
+        return True
+
+    async def async_start_pairing(self):
+        self.pairing_started = True
+        return FAKE_PAIRING_CODE  # deterministic "device-side PIN"
+
+    async def async_finish_pairing(self, pairing_code: str) -> None:
+        if self._fail_code or pairing_code != FAKE_PAIRING_CODE:
+            raise FakeInvalidAuthError("device rejected the pairing code")
+        self.finished_codes.append(pairing_code)
+
+    async def async_get_name_and_mac(self):
+        return FAKE_DEVICE_NAME, FAKE_MAC
+
+    def disconnect(self):
+        self.disconnected += 1
+
+
+def _install_stubs() -> None:
+    """Import-time stand-ins (idempotent, scoped by the autouse fixture)."""
+    if sys.modules.get("voluptuous") is not None:
+        return
+
+    vol = types.ModuleType("voluptuous")
+    vol.Required = lambda key, default=None: key
+    vol.Optional = lambda key, default=None: key
+    vol.Schema = lambda schema: schema
+    sys.modules["voluptuous"] = vol
+
+    ha = types.ModuleType("homeassistant")
+    sys.modules["homeassistant"] = ha
+
+    config_entries = types.ModuleType("homeassistant.config_entries")
+
+    class ConfigFlow:
+        VERSION = 1
+
+        def __init_subclass__(cls, **kwargs):
+            kwargs.pop("domain", None)
+            super().__init_subclass__(**kwargs)
+
+        def async_show_form(self, *, step_id, data_schema=None, errors=None):
+            return _form(step_id, errors or {})
+
+        def async_show_menu(self, *, step_id=None, menu_options, sort=False,
+                            description_placeholders=None):
+            # t56: the real MENU result shape; the flow manager dispatches the
+            # chosen `next_step_id` to `async_step_<choice>(None)`.
+            return {
+                "type": "menu",
+                "step_id": step_id,
+                "menu_options": list(menu_options),
+                "description_placeholders": dict(
+                    description_placeholders or {}
+                ),
+            }
+
+        def async_create_entry(self, *, title, data, options=None):
+            return {"type": "create_entry", "title": title, "data": data,
+                    "options": options}
+
+        def async_abort(self, *, reason):
+            return {"type": "abort", "reason": reason}
+
+        async def async_set_unique_id(self, unique_id):
+            self._unique_id = unique_id
+
+        def _abort_if_unique_id_configured(self, *, error=None, **kwargs):
+            if getattr(self, "_unique_id", None) in active_unique_ids:
+                raise AbortIfConfiguredError()
+
+    def _form(step_id, errors):
+        return {"type": "form", "step_id": step_id, "errors": dict(errors)}
+
+    class AbortIfConfiguredError(Exception):
+        pass
+
+    active_unique_ids = set()
+
+    class OptionsFlow:
+        pass
+    # t29 G3b: the current options-flow API surface on the local stub
+    class _SuggestedMixin:
+        def add_suggested_values_to_schema(self, schema, suggested):
+            schema_dict = getattr(schema, "schema", None) or (
+                schema if isinstance(schema, dict) else {}
+            )
+            schema_dict.setdefault("__suggested__", dict(suggested))
+            return schema
+
+    class OptionsFlowWithReload(_SuggestedMixin):
+        def async_create_entry(self, *, title, data):
+            entry_id = getattr(self.config_entry, "entry_id", None)
+            scheduler = getattr(getattr(self, "hass", None), "config_entries", None)
+            if entry_id is not None and scheduler is not None and hasattr(
+                scheduler, "async_schedule_reload"
+            ):
+                scheduler.async_schedule_reload(entry_id)
+            return {"type": "create_entry", "title": title, "data": data}
+
+
+
+    # t29 G3a: the current config-entries API surface on the local stub
+    ConfigFlow._get_reauth_entry = lambda self, entry=None: entry
+
+    def _update_reload_and_abort(self, entry, **kwargs):
+        # `options` REPLACES the entry options (the real signature); the merge
+        # form is still accepted for older callers.
+        updates = dict(kwargs.get("options_updates") or {})
+        updates.update(kwargs.get("options") or {})
+        options = entry.options
+        for key, value in updates.items():
+            options[key] = value
+        if kwargs.get("unique_id"):
+            entry.unique_id = kwargs["unique_id"]
+        self.hass.config_entries.async_schedule_reload(entry.entry_id)
+        reason = kwargs.get("reason")
+        if reason is None:
+            reason = (
+                "reconfigure_successful"
+                if getattr(self, "source", None) == "reconfigure"
+                else "reauth_successful"
+            )
+        return self.async_abort(reason=reason)
+
+    ConfigFlow.async_update_reload_and_abort = _update_reload_and_abort
+
+    config_entries.ConfigFlow = ConfigFlow
+    config_entries.OptionsFlow = OptionsFlow
+    config_entries.OptionsFlowWithReload = OptionsFlowWithReload
+    config_entries.ConfigEntry = type("ConfigEntry", (), {})
+    sys.modules["homeassistant.config_entries"] = config_entries
+
+    core = types.ModuleType("homeassistant.core")
+    core.HomeAssistant = object
+    core.callback = lambda fn: fn
+    sys.modules["homeassistant.core"] = core
+
+    ha_const = types.ModuleType("homeassistant.const")
+    ha_const.EVENT_HOMEASSISTANT_STOP = "homeassistant_stop"
+    class _Platform:
+        MEDIA_PLAYER = "media_player"
+        SENSOR = "sensor"
+        REMOTE = "remote"
+        BUTTON = "button"
+    ha_const.Platform = _Platform
+    sys.modules["homeassistant.const"] = ha_const
+
+    helpers = types.ModuleType("homeassistant.helpers")
+    entity_registry = types.ModuleType("homeassistant.helpers.entity_registry")
+
+    class _Registry:
+        entities: dict = {}
+
+        def async_get(self, entity_id):
+            return None
+
+    entity_registry.async_get = lambda hass: _Registry()
+    helpers.entity_registry = entity_registry
+    sys.modules["homeassistant.helpers.entity_registry"] = entity_registry
+    sys.modules["homeassistant.helpers"] = helpers
+
+    device_registry = types.ModuleType("homeassistant.helpers.device_registry")
+    device_registry.async_get = lambda hass: SimpleNamespace(devices={})
+    helpers.device_registry = device_registry
+    sys.modules["homeassistant.helpers.device_registry"] = device_registry
+    selector = types.ModuleType("homeassistant.helpers.selector")
+    entity_stublib.install_selector_faces(selector)
+    sys.modules["homeassistant.helpers.selector"] = selector
+
+
+class FakeConfigEntries:
+    def __init__(self):
+        self.updating_entry_calls: list = []
+        self.reloaded_entry_ids: list[str] = []
+
+    def async_get_entry(self, entry_id):
+        return getattr(self, f"__entry_{entry_id}", None)
+
+    def async_update_entry(self, entry, **kwargs):
+        self.updating_entry_calls.append((entry, kwargs))
+        for key, value in kwargs.items():
+            if key in ("options", "data"):
+                setattr(entry, key, value)
+            else:
+                setattr(entry, key, value)
+
+    def async_schedule_reload(self, entry_id):
+        self.reloaded_entry_ids.append(entry_id)
+
+
+class FakeHass:
+    def __init__(self, tmp_dir: str):
+        import types as t
+
+        self.config = t.SimpleNamespace(config_dir=tmp_dir)
+        self.config_entries = FakeConfigEntries()
+
+    @staticmethod
+    async def async_add_executor_job(fn, *args):
+        return fn(*args)
+
+
+def _form_module():
+    _install_stubs()
+    if "nsh.helpers" not in sys.modules:
+        _load_module("nsh.helpers", _SHIELD_DIR / "helpers.py")
+    if "nsh.config_flow" not in sys.modules:
+        _load_module("nsh.config_flow", _SHIELD_DIR / "config_flow.py")
+    return sys.modules["nsh.config_flow"]
+
+
+def _entry_module():
+    _install_stubs()
+    if "nsh.entry" not in sys.modules:
+        _load_module("nsh.entry", _SHIELD_DIR / "__init__.py")
+    return sys.modules["nsh.entry"]
+
+
+@pytest.fixture(autouse=True)
+def scoped_stubs():
+    """Keep the import stubs inside this module's tests (t7 discipline)."""
+    snapshot = entity_stublib.snapshot_modules()
+    _install_stubs()
+    yield
+    entity_stublib.restore_modules(snapshot)
+
+
+def make_flow(tmp_dir: str, monkeypatch: pytest.MonkeyPatch, client: FakeProtocolClient):
+    """ConfigFlow with the real client factory mocked to our fake."""
+    module = _form_module()
+    flow = module.NvidiaShieldConfigFlow()
+    flow.hass = FakeHass(tmp_dir)
+    flow._user_data = {
+        "name": "mdarcy",
+        CONF_JELLYFIN_ENTITY: "",
+        CONF_RECEIVER_ENTITY: "",
+        CONF_RECEIVER_INPUT: "",
+        CONF_POWER_ENTITY: "",
+        CONF_ADB_ENABLED: False,
+        CONF_ADB_STORE_APP_INFO: True,
+        CONF_HOST: "shield.local",  # t41: ONE address field
+        CONF_ADB_PORT: DEFAULT_ADB_PORT,
+        CONF_PROTOCOL_ENABLED: True,
+    }
+    from nsh.connection import ShieldConnectionManager
+
+    monkeypatch.setattr(
+        ShieldConnectionManager,
+        "build_protocol_client",
+        lambda *args, **kwargs: client,
+    )
+    monkeypatch.setattr(
+        module,
+        "protocol_cert_paths",
+        lambda hass: ("/tmp/nsh-proto-test.pem", "/tmp/nsh-proto-test.key"),
+    )
+    return flow
+
+
+class TestProtocolPairing:
+    async def test_first_visit_starts_pairing_and_shows_code_form(self, tmp_path, monkeypatch):
+        client = FakeProtocolClient()
+        flow = make_flow(str(tmp_path), monkeypatch, client)
+
+        result = await flow.async_step_protocol_pair(None)
+
+        assert client.cert_generated is True
+        assert client.pairing_started is True
+        assert result["type"] == "form"
+        assert result["step_id"] == "protocol_pair"
+        assert result["errors"] == {}
+
+    async def test_submit_finishes_with_code_and_records_mac_unique_id(self, tmp_path, monkeypatch):
+        client = FakeProtocolClient()
+        flow = make_flow(str(tmp_path), monkeypatch, client)
+
+        await flow.async_step_protocol_pair(None)
+        result = await flow.async_step_protocol_pair(
+            {CONF_PAIRING_CODE: FAKE_PAIRING_CODE}
+        )
+
+        assert client.finished_codes == [FAKE_PAIRING_CODE]
+        assert flow._unique_id == FAKE_MAC
+        assert client.disconnected == 1
+        # t56: a finished pairing hands over to the setup menu; its Finish row
+        # creates the entry
+        assert result["type"] == "menu"
+        result = await flow.async_step_finish(None)
+        assert result["type"] == "create_entry"
+        assert result["options"][CONF_PROTOCOL_ENABLED] is True
+        assert result["options"][CONF_HOST] == "shield.local"
+
+    async def test_wrong_code_asks_again_then_succeeds(self, tmp_path, monkeypatch):
+        client = FakeProtocolClient()
+        flow = make_flow(str(tmp_path), monkeypatch, client)
+
+        await flow.async_step_protocol_pair(None)
+        failed = await flow.async_step_protocol_pair({"pairing_code": "9999"})
+        assert failed["type"] == "form"
+        assert failed["errors"] == {"base": "protocol_pair_failed"}
+
+        result = await flow.async_step_protocol_pair(
+            {CONF_PAIRING_CODE: FAKE_PAIRING_CODE}
+        )
+        assert result["type"] == "menu"
+        result = await flow.async_step_finish(None)
+        assert result["type"] == "create_entry"
+        assert client.finished_codes == [FAKE_PAIRING_CODE]
+
+
+class TestReauthFlow:
+    async def test_reauth_repairs_entry_and_schedules_reload(self, tmp_path, monkeypatch):
+        client = FakeProtocolClient()
+        flow = make_flow(str(tmp_path), monkeypatch, client)
+        entry = SimpleNamespace(
+            entry_id="e1", title="mdarcy",
+            options={CONF_PROTOCOL_ENABLED: True, CONF_HOST: "shield.local"},
+            data={},
+        )
+        flow.hass.config_entries.__dict__["__entry_e1"] = entry
+        flow.context = {"entry_id": "e1"}
+
+        shown = await flow.async_step_reauth({CONF_ADB_PORT: DEFAULT_ADB_PORT})
+        assert shown["type"] == "form"
+        assert shown["step_id"] == "reauth_confirm"
+
+        pair_form = await flow.async_step_reauth_confirm({"confirm": True})
+        assert pair_form["step_id"] == "protocol_pair"  # PIN form open on device
+
+        result = await flow.async_step_protocol_pair(
+            {CONF_PAIRING_CODE: FAKE_PAIRING_CODE}
+        )
+        assert result == {"type": "abort", "reason": "reauth_successful"}
+        assert entry.options[CONF_PROTOCOL_ENABLED] is True
+        assert flow.hass.config_entries.reloaded_entry_ids == ["e1"]
+
+
+class TestEntryMigration:
+    """t41: v2 → v3 collapses the two address fields into CONF_HOST.
+
+    The protocol host wins, else the ADB host (both name the same Shield); the
+    legacy keys are removed so nothing can read a stale duplicate. A v1 entry
+    travels the whole way in one call.
+    """
+
+    async def test_v1_keeps_its_adb_options_and_gains_both_defaults(self, tmp_path):
+        module = _entry_module()
+        hass = FakeHass(str(tmp_path))
+        entry = SimpleNamespace(
+            version=1,
+            data={},
+            options={
+                "adb_enabled": True,
+                "adb_port": 5555,
+                "jellyfin_entity": "jf.x",
+                "adb_host": "10.0.0.31",  # legacy address
+            },
+            title="mdarcy",
+        )
+
+        ok = await module.async_migrate_entry(hass, entry)
+
+        assert ok is True
+        # ADB options carried over byte-compatibly
+        assert entry.options["adb_enabled"] is True
+        assert entry.options["adb_port"] == 5555
+        assert entry.options["jellyfin_entity"] == "jf.x"
+        # the v2 default, then the v3 address collapse
+        assert entry.options[CONF_PROTOCOL_ENABLED] is False
+        assert entry.options[CONF_HOST] == "10.0.0.31"
+        assert "adb_host" not in entry.options
+        assert entry.version == 3
+
+    async def test_v2_prefers_the_protocol_host_over_the_adb_host(self, tmp_path):
+        module = _entry_module()
+        hass = FakeHass(str(tmp_path))
+        entry = SimpleNamespace(
+            version=2,
+            data={},
+            options={
+                CONF_PROTOCOL_ENABLED: True,
+                CONF_PROTOCOL_HOST: "10.0.0.2",  # the address that was paired
+                CONF_ADB_HOST: "10.0.0.1",
+            },
+            title="mdarcy",
+        )
+
+        assert await module.async_migrate_entry(hass, entry) is True
+
+        assert entry.options[CONF_HOST] == "10.0.0.2"
+        assert CONF_PROTOCOL_HOST not in entry.options
+        assert CONF_ADB_HOST not in entry.options
+        assert entry.options[CONF_PROTOCOL_ENABLED] is True  # untouched
+        assert entry.version == 3
+
+    async def test_v2_falls_back_to_the_adb_host(self, tmp_path):
+        module = _entry_module()
+        hass = FakeHass(str(tmp_path))
+        entry = SimpleNamespace(
+            version=2,
+            data={},
+            options={CONF_PROTOCOL_ENABLED: False, CONF_ADB_HOST: "10.0.0.1"},
+            title="mdarcy",
+        )
+
+        assert await module.async_migrate_entry(hass, entry) is True
+
+        assert entry.options[CONF_HOST] == "10.0.0.1"
+        assert CONF_ADB_HOST not in entry.options
+
+    async def test_v2_without_an_address_migrates_to_an_empty_one(self, tmp_path):
+        module = _entry_module()
+        hass = FakeHass(str(tmp_path))
+        entry = SimpleNamespace(
+            version=2,
+            data={},
+            options={CONF_PROTOCOL_ENABLED: False, CONF_ADB_HOST: "", CONF_PROTOCOL_HOST: ""},
+            title="mdarcy",
+        )
+
+        assert await module.async_migrate_entry(hass, entry) is True
+
+        assert entry.options[CONF_HOST] == ""
+        assert CONF_ADB_HOST not in entry.options
+        assert CONF_PROTOCOL_HOST not in entry.options
+        assert entry.version == 3
+
+    async def test_the_current_version_is_a_noop(self, tmp_path):
+        module = _entry_module()
+        hass = FakeHass(str(tmp_path))
+        entry = SimpleNamespace(
+            version=3,
+            data={},
+            options={CONF_PROTOCOL_ENABLED: True, CONF_HOST: "shield.local"},
+            title="mdarcy",
+        )
+
+        assert await module.async_migrate_entry(hass, entry) is True
+        assert hass.config_entries.updating_entry_calls == []
+
+    async def test_downgrade_rejected(self, tmp_path):
+        module = _entry_module()
+        hass = FakeHass(str(tmp_path))
+        entry = SimpleNamespace(version=4, options={}, title="x")
+        assert await module.async_migrate_entry(hass, entry) is False

tests/test_config_flow_real_ha.py

@@ -0,0 +1,817 @@
+"""t56: the config flow against a REAL Home Assistant install.
+
+The clearing semantics the live bug turned on ("a configured script cannot be
+removed") cannot be established from hand-written stubs: what matters is what
+Home Assistant itself does when a selector is cleared and how it serialises the
+form it hands the browser. So this file drives the REAL
+``homeassistant.data_entry_flow.FlowManager`` with the REAL integration, real
+``probatio`` validation and the real frontend serialiser
+(``probatio.to_field_list`` + ``cv.custom_serializer``) — the exact call the
+HTTP flow view makes.
+
+Skips cleanly when homeassistant is not installed (every other test file runs
+against stubs). Run it with:
+
+    uvx --with homeassistant --with adb-shell pytest tests/test_config_flow_real_ha.py -q
+
+What this file CANNOT prove: there is no browser here, so nothing about how a
+form LOOKS. What it proves is the wire contract — the field list the frontend
+receives and the exact ``user_input`` a submission produces.
+"""
+
+from __future__ import annotations
+
+import pytest
+import pytest_asyncio
+
+pytest.importorskip(
+    "homeassistant",
+    reason="the real FlowManager is the point of this file",
+)
+
+probatio = pytest.importorskip("probatio")
+
+import importlib.util  # noqa: E402
+import sys  # noqa: E402
+from pathlib import Path  # noqa: E402
+
+from homeassistant.config_entries import (  # noqa: E402
+    SOURCE_USER,
+    ConfigEntries,
+    ConfigEntry,
+    OptionsFlowManager,
+)
+from homeassistant.core import HomeAssistant  # noqa: E402
+from homeassistant.data_entry_flow import FlowManager  # noqa: E402
+from homeassistant.helpers import config_validation as cv  # noqa: E402
+from homeassistant.helpers import device_registry as device_registry  # noqa: E402
+from homeassistant.helpers import entity_registry as er  # noqa: E402
+from homeassistant.helpers.entity_registry import (  # noqa: E402
+    EntityRegistryItems,
+    EntityRegistrySettings,
+)
+
+# Load the integration by PATH under its real package name: the repo is not an
+# installed distribution, and the dotted import would need custom_components/ on
+# sys.path plus every one of its siblings present.
+_ROOT = Path(__file__).resolve().parent.parent
+if str(_ROOT) not in sys.path:
+    sys.path.insert(0, str(_ROOT))
+
+cf = importlib.import_module("custom_components.nvidia_shield.config_flow")
+
+SCRIPTS = {"turn_on": "script.shield_wake", "volume_set": "script.shield_volume"}
+OPTIONS = {
+    "app_name_map": {"ar.tvplayer.tv": "TiviMate"},
+    "command_scripts": dict(SCRIPTS),
+    "host": "10.0.0.9",
+    "adb_enabled": True,
+}
+SCRIPT_COMMANDS = (
+    "turn_on",
+    "turn_off",
+    "volume_up",
+    "volume_down",
+    "volume_set",
+    "volume_mute",
+    "select_source",
+)
+SCRIPT_FIELD_PREFIX = "script_"
+
+
+def field_list(schema):
+    """EXACTLY what the HTTP flow view serialises for the browser."""
+    if schema is None:
+        return []
+    return probatio.to_field_list(schema, custom_serializer=cv.custom_serializer)
+
+
+def field_names(schema):
+    return [field["name"] for field in field_list(schema)]
+
+
+def suggested(schema):
+    return {
+        field["name"]: (field.get("description") or {}).get("suggested_value")
+        for field in field_list(schema)
+    }
+
+
+#: Entities the probe refers to. The real EntitySelector validates an id
+#: against the entity registry, so these have to exist for a set (as opposed to
+#: a clear) to be a legal submission.
+ENTITIES = (
+    "script.shield_wake",
+    "script.shield_volume",
+    "script.kept",
+    "script.wake",
+    "media_player.jellyfin",
+    "switch.soundbar",
+    "switch.plug",
+)
+
+
+@pytest_asyncio.fixture(name="ha")
+async def ha_fixture(tmp_path):
+    """A real HomeAssistant with just enough machinery to submit real forms.
+
+    HomeAssistant binds the running loop in __init__, so this has to be an async
+    fixture — which is also why the tests below are coroutines.
+    """
+    hass = HomeAssistant(str(tmp_path))
+    # the real manager, exactly as core builds it — minus the reload SCHEDULE:
+    # core would immediately set the domain up, which needs the integration
+    # loader and the whole component bootstrap this probe deliberately skips.
+    hass.config_entries = ConfigEntries(hass, {})
+    hass.config_entries.async_schedule_reload = lambda entry_id: None
+    # the real registry, populated with the entities the probe uses: a real
+    # EntitySelector refuses an id the registry does not know
+    device_registry.async_setup(hass)
+    await device_registry.async_load(hass)
+    # EntityRegistry's own loader reaches deep into core (device migration,
+    # restore, store), so the two containers it fills are set up directly —
+    # same objects, no core bootstrap.
+    registry = er.async_get(hass)
+    registry.entities = EntityRegistryItems(hass)
+    registry.deleted_entities = {}
+    registry.settings = EntityRegistrySettings()
+    registry._entities_data = registry.entities.data
+    hass.data[er.DATA_REGISTRY] = registry
+    for entity_id in ENTITIES:
+        domain, object_id = entity_id.split(".", 1)
+        registry.async_get_or_create(
+            domain, "test", entity_id, suggested_object_id=object_id
+        )
+    assert registry.async_get("script.kept") is not None
+    return hass
+
+
+def make_entry(hass, options=None):
+    entry = ConfigEntry(
+        version=1,
+        minor_version=1,
+        domain="nvidia_shield",
+        title=f"Shield {len(hass.config_entries._entries) + 1}",
+        data={},
+        options=dict(options if options is not None else OPTIONS),
+        source=SOURCE_USER,
+        unique_id=None,
+        subentries_data=(),
+        discovery_keys={},
+    )
+    # the probe "saves" by writing back what create_entry returned, exactly as
+    # core's async_update_entry would; ConfigEntry exposes options through a
+    # read-only property, so the private store is written instead
+    object.__setattr__(entry, "_options", dict(entry.options))
+    hass.config_entries._entries[entry.entry_id] = entry
+    return entry
+
+
+
+class SetupManager(FlowManager):
+    """A real FlowManager that builds the integration's real config flow.
+
+    Overrides only the handler construction, and does there what core does at
+    config_entries.py:1959 — the flow's ``init_step`` is the SOURCE, which is
+    why a real config flow starts at ``async_step_user`` and not at ``init``.
+    """
+
+    async def async_create_flow(self, handler_key, *, context=None, data=None):
+        flow = cf.NvidiaShieldConfigFlow()
+        flow.init_step = (context or {}).get("source", SOURCE_USER)
+        return flow
+
+    async def async_finish_flow(self, flow, result):
+        return result
+
+
+def setup_manager(hass):
+    return SetupManager(hass)
+
+
+async def open_setup(hass):
+    """Start a real user-initiated setup flow and return (manager, result)."""
+    manager = setup_manager(hass)
+    result = await manager.async_init(
+        "nvidia_shield", context={"source": SOURCE_USER}
+    )
+    return manager, result
+
+
+#: The first setup form, as the real frontend submits it: EVERY rendered field.
+def first_form(**overrides):
+    payload = {
+        "name": "Shield",
+        "jellyfin_entity": "",
+        "receiver_entity": "",
+        "receiver_input": "",
+        "power_entity": "",
+        "adb_enabled": False,
+        "adb_store_app_info": True,
+        "host": "10.0.0.9",
+        "adb_port": 5555,
+        "protocol_enabled": False,
+    }
+    payload.update(overrides)
+    return payload
+
+
+class OptionsManager(OptionsFlowManager):
+    """OptionsFlowManager that builds the integration's real options flow.
+
+    Overrides ONLY the handler lookup: real HA resolves it through
+    ``async_get_options_flow`` from the registered integration, which needs a
+    fully loaded core. Everything else — menu dispatch, schema validation,
+    ``next_step_id`` routing — is the real implementation.
+    """
+
+    async def async_create_flow(self, handler_key, *, context=None, data=None):
+        return cf.NvidiaShieldOptionsFlow()
+
+
+def options_manager(hass):
+    return OptionsManager(hass)
+
+
+async def open_options(hass, entry):
+    manager = options_manager(hass)
+    result = await manager.async_init(
+        entry.entry_id,
+        context={"source": SOURCE_USER, "entry_id": entry.entry_id},
+    )
+    return manager, result
+
+
+def full_script_page(value=""):
+    """A real submission carries EVERY rendered field — this is that page."""
+    return {f"{SCRIPT_FIELD_PREFIX}{c}": value for c in SCRIPT_COMMANDS}
+
+
+async def open_scripts(hass, entry):
+    """Open the Scripts sub-screen through the real menu."""
+    manager, menu = await open_options(hass, entry)
+    scripts = await manager.async_configure(menu["flow_id"], {"next_step_id": "scripts"})
+    assert scripts["type"] == "form", scripts
+    return manager, scripts
+
+
+class TestRealMenuFlow:
+    """The options page is a real menu with real sub-screens."""
+
+    async def test_the_page_is_a_menu_and_every_row_opens(self, ha):
+        entry = make_entry(ha)
+        manager, menu = await open_options(ha, entry)
+
+        assert menu["type"] == "menu"
+        assert menu["step_id"] == "init"
+        assert set(menu["menu_options"]) == {
+            "connection",
+            "receiver",
+            "apps",
+            "discover",
+            "scripts",
+            "finish",
+        }
+        # HA renders the rows from the flow result, and validates the choice
+        # against the menu's own schema
+        assert field_names(menu["data_schema"]) == ["next_step_id"]
+
+        # each row is opened on its own flow, because a real flow keeps ONE
+        # step at a time — reopening from a fresh menu is what the browser does
+        for row in menu["menu_options"]:
+            if row in ("finish", "discover"):
+                # actions: `finish` commits and `discover` sweeps, neither renders
+                continue
+            _manager, fresh = await open_options(ha, entry)
+            opened = await _manager.async_configure(
+                fresh["flow_id"], {"next_step_id": row}
+            )
+            assert opened["type"] == "form", row
+            # HA dispatches a submitted form by its OWN step_id, so the rendered
+            # step_id must be the menu row id (the method name)
+            assert opened["step_id"] == row
+
+    async def test_an_unknown_menu_row_is_rejected_by_the_real_schema(self, ha):
+        entry = make_entry(ha)
+        manager, menu = await open_options(ha, entry)
+
+        from homeassistant.data_entry_flow import InvalidData
+
+        # real HA validates the choice against the menu schema (probatio.In on
+        # the offered ids) before the flow is even dispatched
+        with pytest.raises(InvalidData):
+            await manager.async_configure(
+                menu["flow_id"], {"next_step_id": "not_a_step"}
+            )
+
+
+class TestRealAppsField:
+    """[object Object]: the field list must carry TEXT, never a dict."""
+
+    async def test_the_apps_suggestion_is_the_serialized_text(self, ha):
+        entry = make_entry(ha)
+        manager, menu = await open_options(ha, entry)
+        apps = await manager.async_configure(menu["flow_id"], {"next_step_id": "apps"})
+
+        suggested_values = suggested(apps["data_schema"])
+        assert suggested_values["app_name_map"] == "ar.tvplayer.tv=TiviMate"
+        assert isinstance(suggested_values["app_name_map"], str)
+
+        # and nothing in the whole field list carries a dict for a text field
+        for field in field_list(apps["data_schema"]):
+            value = (field.get("description") or {}).get("suggested_value")
+            if field.get("type") == "string":
+                assert not isinstance(value, (dict, list)), field["name"]
+
+    async def test_the_empty_apps_state_renders_without_a_suggestion(self, ha):
+        entry = make_entry(ha, options={"host": "10.0.0.9"})
+        manager, menu = await open_options(ha, entry)
+        apps = await manager.async_configure(menu["flow_id"], {"next_step_id": "apps"})
+
+        fields = field_list(apps["data_schema"])
+        assert [f["name"] for f in fields] == ["app_name_map"]
+        assert (fields[0].get("description") or {}).get("suggested_value") in (None, "")
+
+    async def test_a_table_row_round_trips_through_the_real_flow(self, ha):
+        entry = make_entry(ha, options={"host": "10.0.0.9"})
+        manager, menu = await open_options(ha, entry)
+        apps = await manager.async_configure(menu["flow_id"], {"next_step_id": "apps"})
+
+        saved = await manager.async_configure(
+            apps["flow_id"],
+            {"app_name_map": "com.plex.hdx=Plex|http://icons.local/plex.png"},
+        )
+        assert saved["type"] == "menu"  # back at the menu, nothing committed yet
+
+        created = await manager.async_configure(
+            saved["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["type"] == "create_entry"
+        assert created["data"]["app_name_map"] == {"com.plex.hdx": "Plex"}
+        assert created["data"]["app_icon_map"] == {
+            "com.plex.hdx": "http://icons.local/plex.png"
+        }
+
+
+class TestRealScriptClearing:
+    """The live bug: what the REAL flow stores when a selector is cleared."""
+
+    async def test_set_then_cleared_persists_through_save_and_reopen(self, ha):
+        """t56 unit 0 / t57 F4: SET, CLEAR, SAVE, REOPEN — the live symptom.
+
+        The whole page goes through the real flow manager: first with a script
+        SELECTED (an entity id, which the seeded registry resolves), then with
+        that one selector cleared while the other keeps its value. Both halves
+        are driven here — the earlier version of this file claimed entity ids
+        could not be driven, which was simply false (the receiver page in this
+        file has always submitted ``switch.soundbar``).
+        """
+        entry = make_entry(ha)
+        manager, scripts = await open_scripts(ha, entry)
+
+        # 1. SET: two commands selected through the real flow, from real ids
+        page = full_script_page("")
+        page["script_turn_on"] = "script.kept"
+        page["script_volume_set"] = SCRIPTS["volume_set"]
+        after_set = await manager.async_configure(scripts["flow_id"], page)
+        assert after_set["type"] == "menu", after_set
+
+        created = await manager.async_configure(
+            after_set["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["type"] == "create_entry"
+        assert created["data"]["command_scripts"] == {
+            "turn_on": "script.kept",
+            "volume_set": SCRIPTS["volume_set"],
+        }
+
+        # 2. CLEAR: the same page with ONE selector emptied (a cleared selector
+        #    arrives as ''), the other left set
+        saved = dict(entry.options)
+        saved.update(created["data"])
+        object.__setattr__(entry, "_options", saved)
+        manager2, scripts2 = await open_scripts(ha, entry)
+        assert suggested(scripts2["data_schema"])["script_turn_on"] == "script.kept"
+
+        cleared = full_script_page("")
+        cleared["script_turn_on"] = ""
+        cleared["script_volume_set"] = SCRIPTS["volume_set"]
+        after_clear = await manager2.async_configure(scripts2["flow_id"], cleared)
+        assert after_clear["type"] == "menu", after_clear
+        created2 = await manager2.async_configure(
+            after_clear["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created2["data"]["command_scripts"] == {
+            "volume_set": SCRIPTS["volume_set"],
+        }
+
+        # 3. PERSIST: re-open over the SAVED options — the cleared command must
+        #    not come back, and no flat script_* key was ever stored
+        saved2 = dict(entry.options)
+        saved2.update(created2["data"])
+        object.__setattr__(entry, "_options", saved2)
+        assert not [k for k in entry.options if k.startswith(SCRIPT_FIELD_PREFIX)]
+        manager3, scripts3 = await open_scripts(ha, entry)
+        values = suggested(scripts3["data_schema"])
+        assert values["script_volume_set"] == SCRIPTS["volume_set"]
+        assert values.get("script_turn_on") in (None, "")
+
+    @pytest.mark.parametrize("shape", ["empty_string", "null"])
+    async def test_a_cleared_selector_is_accepted_by_the_real_schema(self, ha, shape):
+        """Real HA rejects '' / None for a plain EntitySelector; ours tolerates it."""
+        entry = make_entry(ha)
+        manager, scripts = await open_scripts(ha, entry)
+
+        page = full_script_page("")
+        page["script_turn_on"] = "" if shape == "empty_string" else None
+        saved = await manager.async_configure(scripts["flow_id"], page)
+        assert saved["type"] == "menu", saved
+
+        created = await manager.async_configure(
+            saved["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["data"]["command_scripts"] == {}
+
+    async def test_a_never_set_field_stays_out_of_the_dict(self, ha):
+        entry = make_entry(ha, options={"host": "10.0.0.9", "adb_enabled": True})
+        manager, scripts = await open_scripts(ha, entry)
+
+        # a real submission carries every rendered field, all empty here
+        saved = await manager.async_configure(scripts["flow_id"], full_script_page(""))
+        created = await manager.async_configure(
+            saved["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["data"]["command_scripts"] == {}
+
+
+class TestRealSelectorValidation:
+    """The selector distinction, pinned on the selector classes themselves.
+
+    ``TestRealScriptClearing`` drives a cleared page end to end; this class pins
+    the underlying difference in isolation, so a regression says WHICH rule broke:
+    the built-in EntitySelector rejects a cleared field, ours accepts it and
+    still validates a real id.
+    """
+
+    def test_real_entity_selector_rejects_a_cleared_field(self):
+        from homeassistant.helpers.selector import (
+            EntitySelector,
+            EntitySelectorConfig,
+        )
+
+        strict = EntitySelector(EntitySelectorConfig(domain="script"))
+        for cleared in ("", None):
+            with pytest.raises(probatio.Invalid):
+                strict(cleared)
+
+    def test_the_clearing_selector_accepts_cleared_and_real_values(self):
+        from custom_components.nvidia_shield.config_flow import _build_selectors
+
+        selector = _build_selectors()["script"]
+        assert selector("") == ""
+        assert selector(None) == ""
+        assert selector("   ") == ""
+        assert selector("script.whatever") == "script.whatever"
+
+class TestRealNoLostEdits:
+    """Edits made on one sub-screen survive a submission on another."""
+
+    async def test_connection_then_scripts_then_apps_all_survive(self, ha):
+        entry = make_entry(ha, options={})
+        manager, menu = await open_options(ha, entry)
+
+        connection = await manager.async_configure(
+            menu["flow_id"], {"next_step_id": "connection"}
+        )
+        after_connection = await manager.async_configure(
+            connection["flow_id"],
+            {
+                "host": "10.0.0.44",
+                "adb_port": 5555,
+                "adb_enabled": True,
+                "protocol_enabled": False,
+                "jellyfin_entity": "media_player.jellyfin",
+            },
+        )
+        assert after_connection["type"] == "menu"
+
+        scripts = await manager.async_configure(
+            after_connection["flow_id"], {"next_step_id": "scripts"}
+        )
+        page = full_script_page("")
+        page["script_turn_on"] = "script.wake"
+        after_scripts = await manager.async_configure(scripts["flow_id"], page)
+        assert after_scripts["type"] == "menu"
+
+        apps = await manager.async_configure(
+            after_scripts["flow_id"], {"next_step_id": "apps"}
+        )
+        after_apps = await manager.async_configure(
+            apps["flow_id"], {"app_name_map": "com.plex.hdx=Plex"}
+        )
+        assert after_apps["type"] == "menu"
+
+        created = await manager.async_configure(
+            after_apps["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["type"] == "create_entry"
+        data = created["data"]
+        # every earlier sub-screen's edit is still there
+        assert data["host"] == "10.0.0.44"
+        assert data["jellyfin_entity"] == "media_player.jellyfin"
+        assert data["command_scripts"] == {"turn_on": "script.wake"}
+        assert data["app_name_map"] == {"com.plex.hdx": "Plex"}
+
+
+class TestRealReceiverSelector:
+    """The Receiver field accepts a switch, not only a media_player."""
+
+    async def test_the_selector_offers_switch_domains(self, ha):
+        entry = make_entry(ha, options={})
+        manager, menu = await open_options(ha, entry)
+        receiver = await manager.async_configure(
+            menu["flow_id"], {"next_step_id": "receiver"}
+        )
+
+        fields = {f["name"]: f for f in field_list(receiver["data_schema"])}
+        selector = fields["receiver_entity"]["selector"]["entity"]
+        assert "switch" in selector["domain"]
+        assert "media_player" in selector["domain"]
+
+    async def test_a_switch_is_accepted_and_stored(self, ha):
+        entry = make_entry(ha, options={})
+        manager, menu = await open_options(ha, entry)
+        receiver = await manager.async_configure(
+            menu["flow_id"], {"next_step_id": "receiver"}
+        )
+
+        saved = await manager.async_configure(
+            receiver["flow_id"],
+            {"receiver_entity": "switch.soundbar", "receiver_input": "HDMI 2"},
+        )
+        created = await manager.async_configure(
+            saved["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["data"]["receiver_entity"] == "switch.soundbar"
+        assert created["data"]["receiver_input"] == "HDMI 2"
+
+
+class TestRealSetupMenu:
+    """t57 UNIT 0a / F2: the SETUP flow under a REAL FlowManager.
+
+    The stub suite drove `async_step_menu` directly, which is exactly how a
+    broken menu stays green: it never asked Home Assistant to dispatch a row.
+    These tests do, for every row, and they are the red proof for the TypeError
+    the first form used to hit on the way to the menu.
+    """
+
+    @staticmethod
+    def _no_connect(result=True):
+        async def _connect(*args, **kwargs):
+            return result
+
+        return staticmethod(_connect)
+
+    async def test_the_first_form_leads_into_pairing_then_the_menu(self, ha, monkeypatch):
+        """The whole ordinary path: first form → ADB pairing → the menu."""
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(True)
+        )
+        manager, form = await open_setup(ha)
+        assert form["type"] == "form"
+        assert form["step_id"] == "user"
+
+        pairing = await manager.async_configure(
+            form["flow_id"], first_form(adb_enabled=True, protocol_enabled=False)
+        )
+        assert pairing["type"] == "form"
+        assert pairing["step_id"] == "adb_pair"
+
+        result = await manager.async_configure(pairing["flow_id"], {"adb_port": 5555})
+
+        assert result["type"] == "menu", result
+        # ADB is paired, the protocol is off: only the two sub-screens + finish
+        assert list(result["menu_options"]) == ["receiver", "connection", "finish"]
+
+    async def test_the_adb_skip_reaches_the_menu(self, ha, monkeypatch):
+        """The path that used to die: skip ADB pairing, then render the menu."""
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(False)
+        )
+        manager, form = await open_setup(ha)
+        pairing = await manager.async_configure(
+            form["flow_id"], first_form(adb_enabled=True, protocol_enabled=False)
+        )
+        assert pairing["step_id"] == "adb_pair"
+
+        result = await manager.async_configure(
+            pairing["flow_id"], {"skip_pairing": True}
+        )
+
+        assert result["type"] == "menu", result
+        assert "adb_pair" in result["menu_options"]  # not paired: still offered
+
+    async def test_adb_pairing_success_stops_offering_that_row(self, ha, monkeypatch):
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(True)
+        )
+        manager, form = await open_setup(ha)
+        pairing = await manager.async_configure(
+            form["flow_id"], first_form(adb_enabled=True, protocol_enabled=False)
+        )
+        paired = await manager.async_configure(pairing["flow_id"], {"adb_port": 5555})
+
+        assert paired["type"] == "menu"
+        assert "adb_pair" not in paired["menu_options"]  # F2: the guard
+
+    async def test_every_setup_menu_row_dispatches_and_renders(self, ha, monkeypatch):
+        """Every row HA offers must have a handler AND render a form whose
+        step_id is that same row, or the page dead-ends on submit."""
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(False)
+        )
+        # the protocol row builds the androidtvremote2 client; this test is about
+        # DISPATCH, and the pairing internals have their own stub coverage. The
+        # UNREACHABLE branch is a real code path needing no library, so the row
+        # renders its real form.
+        async def _unreachable(self):
+            return None, "protocol_unreachable"
+
+        monkeypatch.setattr(
+            cf.NvidiaShieldConfigFlow, "_async_begin_protocol_pairing", _unreachable
+        )
+
+        manager, form = await open_setup(ha)
+        menu_result = await manager.async_configure(
+            form["flow_id"],
+            first_form(adb_enabled=True, protocol_enabled=True),
+        )
+        assert menu_result["type"] == "form"  # the ADB pairing form comes first
+
+        # hand the ADB form a skip so the MENU renders with every row
+        menu_result = await manager.async_configure(
+            menu_result["flow_id"], {"skip_pairing": True}
+        )
+        assert menu_result["type"] == "menu", menu_result
+        rows = list(menu_result["menu_options"])
+        assert rows == ["receiver", "connection", "adb_pair", "protocol_pair", "finish"]
+
+        for row in rows:
+            # each row on its own flow (a flow is at one step at a time) AND on
+            # the manager that owns it: a flow lives in its manager's progress
+            row_manager, fresh = await open_setup(ha)
+            pairing = await row_manager.async_configure(
+                fresh["flow_id"], first_form(adb_enabled=True, protocol_enabled=True)
+            )
+            menu = await row_manager.async_configure(
+                pairing["flow_id"], {"skip_pairing": True}
+            )
+            opened = await row_manager.async_configure(
+                menu["flow_id"], {"next_step_id": row}
+            )
+            assert opened["type"] in ("form", "menu", "create_entry"), (row, opened)
+            if opened["type"] == "form":
+                assert opened["step_id"] == row, (row, opened["step_id"])
+
+    async def test_a_setup_sub_screen_submission_is_accepted(self, ha, monkeypatch):
+        """A rendered sub-screen must be re-submittable (row id == step_id)."""
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(True)
+        )
+        manager, form = await open_setup(ha)
+        pairing = await manager.async_configure(
+            form["flow_id"], first_form(adb_enabled=True, protocol_enabled=False)
+        )
+        menu = await manager.async_configure(pairing["flow_id"], {"adb_port": 5555})
+        assert menu["type"] == "menu"
+
+        opened = await manager.async_configure(
+            menu["flow_id"], {"next_step_id": "receiver"}
+        )
+        assert opened["type"] == "form"
+        assert opened["step_id"] == "receiver"
+
+        back = await manager.async_configure(
+            opened["flow_id"], {"receiver_entity": "switch.soundbar"}
+        )
+        assert back["type"] == "menu", back
+
+        created = await manager.async_configure(
+            back["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["type"] == "create_entry"
+        assert created["options"]["receiver_entity"] == "switch.soundbar"
+
+    async def test_the_full_menu_walk_merges_and_creates_one_entry(self, ha, monkeypatch):
+        """connection + receiver + finish → ONE entry carrying both edits."""
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(True)
+        )
+        manager, form = await open_setup(ha)
+        pairing = await manager.async_configure(
+            form["flow_id"], first_form(adb_enabled=True, protocol_enabled=False)
+        )
+        menu = await manager.async_configure(pairing["flow_id"], {"adb_port": 5555})
+
+        connection = await manager.async_configure(
+            menu["flow_id"], {"next_step_id": "connection"}
+        )
+        assert connection["step_id"] == "connection"
+        menu2 = await manager.async_configure(
+            connection["flow_id"], {"host": "10.0.0.55", "adb_port": 5555,
+                                    "adb_enabled": True, "protocol_enabled": False}
+        )
+        assert menu2["type"] == "menu"
+
+        receiver = await manager.async_configure(
+            menu2["flow_id"], {"next_step_id": "receiver"}
+        )
+        menu3 = await manager.async_configure(
+            receiver["flow_id"], {"receiver_entity": "switch.soundbar"}
+        )
+
+        created = await manager.async_configure(
+            menu3["flow_id"], {"next_step_id": "finish"}
+        )
+        assert created["type"] == "create_entry"
+        assert created["options"]["host"] == "10.0.0.55"
+        assert created["options"]["receiver_entity"] == "switch.soundbar"
+
+    @pytest.mark.parametrize(
+        ("adb_enabled", "protocol_enabled", "connect", "pairs_protocol"),
+        [
+            (True, False, False, False),   # ADB skipped
+            (True, False, True, False),    # ADB paired, protocol off
+            (True, True, False, False),    # ADB skipped, protocol skipped
+            (True, True, True, False),     # ADB paired, protocol skipped
+            (False, True, False, False),   # protocol only
+        ],
+        ids=["adb-skip", "adb-paired", "adb-skip+protocol-skip",
+             "pair-adb", "protocol-only"],
+    )
+    async def test_every_ordinary_path_reaches_create_entry(
+        self, ha, monkeypatch, adb_enabled, protocol_enabled, connect, pairs_protocol
+    ):
+        """t57 UNIT 0a: the path map.
+
+        Under the pre-fix tree FOUR of these five died with
+        `TypeError: async_show_menu() got an unexpected keyword argument
+        'errors'` the moment the ADB pairing form was submitted or skipped —
+        so a new entry could not be created on any path that went near the
+        menu, and the sub-screens were unreachable. Each path is driven here to
+        `create_entry`.
+        """
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(connect)
+        )
+
+        async def _unreachable(self):
+            return None, "protocol_unreachable"
+
+        monkeypatch.setattr(
+            cf.NvidiaShieldConfigFlow, "_async_begin_protocol_pairing", _unreachable
+        )
+        manager, form = await open_setup(ha)
+        result = await manager.async_configure(
+            form["flow_id"],
+            first_form(adb_enabled=adb_enabled, protocol_enabled=protocol_enabled),
+        )
+        assert result["type"] == "form", result
+
+        for _ in range(12):
+            if result["type"] == "create_entry":
+                break
+            step = result.get("step_id")
+            if step == "adb_pair":
+                result = await manager.async_configure(
+                    result["flow_id"], {"skip_pairing": True}
+                )
+            elif step == "protocol_pair":
+                result = await manager.async_configure(
+                    result["flow_id"],
+                    {"pairing_code": "1234", "host": "10.0.0.9", "skip_pairing": True},
+                )
+            elif result["type"] == "menu":
+                # the menu must always offer a way out
+                assert "finish" in result["menu_options"], result["menu_options"]
+                result = await manager.async_configure(
+                    result["flow_id"], {"next_step_id": "finish"}
+                )
+            else:  # pragma: no cover - the assertion below reports it
+                break
+
+        assert result["type"] == "create_entry", result
+
+    async def test_the_menu_description_reports_what_is_unpaired(self, ha, monkeypatch):
+        monkeypatch.setattr(
+            cf.ShieldConnectionManager, "test_connect", self._no_connect(False)
+        )
+        manager, form = await open_setup(ha)
+        pairing = await manager.async_configure(
+            form["flow_id"], first_form(adb_enabled=True, protocol_enabled=True)
+        )
+        menu = await manager.async_configure(pairing["flow_id"], {"skip_pairing": True})
+
+        assert menu["type"] == "menu"
+        note = (menu.get("description_placeholders") or {}).get("pairing", "")
+        assert "ADB" in note and "remote protocol" in note

tests/test_connection.py

@@ -0,0 +1,865 @@
+"""Unit tests for ShieldConnectionManager + StateStore (Phase 1).
+
+Driven with a fake poller — no real ADB, no Home Assistant. Covers the
+connect/reconnect backoff ladder, state expiration, listener notification,
+command delegation, and full task lifecycle.
+"""
+
+import asyncio
+import time
+import types
+
+import pytest
+from ha_adb_common.media_session import MediaSessionInfo
+from nsh import connection
+from nsh.connection import (
+    FIELD_AWAKE,
+    FIELD_SESSIONS,
+    ShieldConnectionManager,
+    StateStore,
+)
+from nsh.const import ADB_POLL_INTERVAL, APP_LABEL_EXIT_MARKER
+
+
+def test_connection_module_depends_on_no_homeassistant():
+    """The manager module must stay importable without HA installed."""
+    with open(connection.__file__, encoding="utf-8") as fh:
+        source = fh.read()
+    assert "homeassistant" not in source
+
+
+class FakePoller:
+    """AdbMediaSessionPoller shape — canned answers, no socket."""
+
+    def __init__(self):
+        self.connected = False
+        self.connect_failures = 0
+        self.disconnect_calls = 0
+        self.awake = None
+        self.sessions: list[MediaSessionInfo] = []
+        self.apps: list[dict] = []
+        self.audio_dump = ""
+        self.foreground: str | None = None
+        self.foreground_calls = 0
+        self.shell_calls: list[str] = []
+        self.pm_dumps: dict[str, str] = {}
+        self.head_lines_used: int | None = "unset"
+
+    async def connect(self) -> bool:
+        if self.connect_failures > 0:
+            self.connect_failures -= 1
+            self.connected = False
+            return False
+        self.connected = True
+        return True
+
+    async def disconnect(self) -> None:
+        self.disconnect_calls += 1
+        self.connected = False
+
+    async def health_check(self) -> bool:
+        return self.connected
+
+    async def is_awake(self) -> bool | None:
+        return self.awake if self.connected else None
+
+    async def poll_media_sessions(
+        self, foreground_package=None, head_lines: int | None = 200
+    ) -> MediaSessionInfo | None:
+        self.head_lines_used = head_lines
+        return self.sessions[0] if self.sessions else None
+
+    @property
+    def all_sessions(self) -> list[MediaSessionInfo]:
+        return self.sessions
+
+    @property
+    def last_dump(self) -> str | None:
+        return self.audio_dump
+
+    async def poll_running_apps(self) -> list[dict]:
+        return list(self.apps)
+
+    async def poll_foreground(self) -> str | None:
+        self.foreground_calls += 1
+        return self.foreground
+
+    async def shell(self, cmd: str) -> str | None:
+        self.shell_calls.append(cmd)
+        import shlex
+
+        for package, dump in self.pm_dumps.items():
+            if package in cmd or shlex.quote(package) in cmd:
+                return dump
+        return None
+
+    async def send_media_command(self, command: str) -> bool:
+        return self.connected
+
+    async def bring_to_foreground(self, package: str) -> bool:
+        return self.connected
+
+
+def _manager(poller=None, **kwargs) -> ShieldConnectionManager:
+    return ShieldConnectionManager(hass=None, entry=None, poller=poller, **kwargs)
+
+
+class TestStateStore:
+    def test_set_get_roundtrip(self):
+        store = StateStore(ttl=60, clock=time.monotonic)
+        store.set("awake", True)
+        assert store.get("awake") is True
+
+    def test_expired_field_returns_default(self):
+        """B5: a field older than the TTL reads as expired, not last-known."""
+        now = [1000.0]
+        store = StateStore(ttl=60.0, clock=lambda: now[0])
+        store.set(FIELD_AWAKE, True)
+        store.set(FIELD_SESSIONS, [MediaSessionInfo(package="app.a", playing=True)])
+
+        assert store.get(FIELD_AWAKE) is True
+        now[0] += 60.1
+        assert store.get(FIELD_AWAKE) is None
+        assert store.get(FIELD_SESSIONS, []) == []
+
+    def test_missing_field_returns_default(self):
+        store = StateStore(ttl=60, clock=time.monotonic)
+        assert store.get(FIELD_AWAKE) is None
+        assert store.get(FIELD_SESSIONS, []) == []
+
+    def test_clear_immediately_expires(self):
+        store = StateStore(ttl=60, clock=time.monotonic)
+        store.set(FIELD_AWAKE, False)
+        store.clear(FIELD_AWAKE)
+        assert store.get(FIELD_AWAKE) is None
+
+
+class TestAppLabelCache:
+    """P5-1: manifest labels cached ≥24h; one pm dump per cycle, reused."""
+
+    def _manager_with_dump(self, clock=None):
+        now = 1000.0
+        poller = FakePoller()
+        poller.awake = True
+        poller.pm_dumps["ar.tvplayer.tv"] = (
+            "application-label: 'TiviMate'\n"
+            "application-label-de: 'TiviMate DE'"
+        )
+        manager = ShieldConnectionManager(
+            hass=None, entry=None, poller=poller, clock=(clock or (lambda: now))
+        )
+        return manager, now
+
+    async def test_label_resolves_via_cycle_and_is_cached(self):
+        manager, _t = self._manager_with_dump()
+
+        assert manager.app_label("ar.tvplayer.tv") is None  # cache miss enqueues
+
+        await manager._watchdog_cycle(5.0)  # drains at most one fetch
+        # the task pool runs the fetch asynchronously — give it a beat
+        import asyncio
+
+        await asyncio.sleep(0)
+
+        assert manager.app_label("ar.tvplayer.tv") == "TiviMate"
+
+        # cache reuse: a later cycle performs NO duplicate pm dump
+        calls = len(manager._poller.shell_calls)
+        manager.app_label("ar.tvplayer.tv")  # cached now — no enqueue
+        await manager._watchdog_cycle(5.0)
+        await asyncio.sleep(0)
+        assert len(manager._poller.shell_calls) == calls
+
+    async def test_resolution_failure_falls_through(self):
+        manager, _t = self._manager_with_dump()
+        manager._poller.pm_dumps["com.unknown.app"] = "no label line here"
+
+        assert manager.app_label("com.unknown.app") is None
+        await manager._watchdog_cycle(5.0)
+
+        # the dump RAN and carried no label: definitive negative, and the
+        # caller's next tier (the raw package) takes over — still None here,
+        # never a crash or a fabricated label
+        assert manager.app_label("com.unknown.app") is None
+
+    async def test_label_less_package_is_a_definitive_negative(self):
+        """t24 F1: a label-less package's ANSWER costs one pm dump, not one/cycle.
+
+        The old code additionally stamped this answer on FAILURE paths; t55
+        separates the two (see the retry tests below), but the negative cache
+        for a dump that really ran stays — the round-trip tax must not return.
+        """
+        manager, _t = self._manager_with_dump()
+        manager._poller.pm_dumps["com.unknown.app"] = "no label line here"
+
+        assert manager.app_label("com.unknown.app") is None  # enqueue
+        await manager._watchdog_cycle(5.0)
+        import asyncio
+
+        await asyncio.sleep(0)  # drain the fetch task
+        first_dump_count = len(manager._poller.shell_calls)
+
+        # later cycles: ZERO additional pm dumps for the unresolvable pkg
+        manager.app_label("com.unknown.app")  # negative cache hit — not enqueued
+        manager.app_label("com.unknown.app")
+        await manager._watchdog_cycle(5.0)
+        await manager._watchdog_cycle(5.0)
+
+        assert len(manager._poller.shell_calls) == first_dump_count
+        assert manager.app_label("com.unknown.app") is None  # falls through
+
+    async def test_failed_fetch_is_not_cached_and_retries(self):
+        """t55 root cause: a fetch that could NOT run must not become a miss.
+
+        The live defect was a metadata fetch failing and the failure being
+        written as ("", stamp) — an eternal "no label" for the whole 24 h TTL,
+        which left app_name showing the raw package id with no way back. Here
+        the failed fetch stamps nothing, the next render re-enqueues, and the
+        retry resolves the real label.
+        """
+        manager, _t = self._manager_with_dump()
+        real_shell = manager._poller.shell
+        calls: list[str] = []
+
+        async def _flaky(cmd):
+            calls.append(cmd)
+            if "pm dump" in cmd:
+                raise RuntimeError("adb shell blew up")
+            return await real_shell(cmd)
+
+        manager._poller.shell = _flaky
+
+        assert manager.app_label("ar.tvplayer.tv") is None  # enqueue
+        await manager._watchdog_cycle(5.0)
+        import asyncio
+
+        await asyncio.sleep(0)
+
+        # the fetch ran and failed → NOTHING is stamped as an answer
+        assert manager._app_labels.get("ar.tvplayer.tv") is None
+        assert [c for c in calls if "pm dump" in c]
+
+        # the next render enqueues again (the miss is retried, not silenced)
+        assert manager.app_label("ar.tvplayer.tv") is None
+        assert manager.app_label_requests == {"ar.tvplayer.tv"}
+
+        # the retry reaches the device and resolves the label
+        manager._poller.shell = real_shell
+        await manager._watchdog_cycle(5.0)
+        await asyncio.sleep(0)
+        assert manager.app_label("ar.tvplayer.tv") == "TiviMate"
+
+    async def test_shell_failure_is_not_cached_and_retries(self):
+        manager, _t = self._manager_with_dump()
+        manager._poller.pm_dumps["ar.tvplayer.tv"] = "application-label: 'TiviMate'"
+
+        async def _boom(_cmd):
+            raise RuntimeError("adb shell blew up")
+
+        manager._poller.shell = _boom
+        manager.app_label("ar.tvplayer.tv")
+        await manager._watchdog_cycle(5.0)
+        import asyncio
+
+        await asyncio.sleep(0)
+
+        assert manager._app_labels.get("ar.tvplayer.tv") is None
+        assert manager.app_label_requests == set()
+        assert manager.app_label("ar.tvplayer.tv") is None
+        assert manager.app_label_requests == {"ar.tvplayer.tv"}  # re-enqueued
+
+    async def test_in_flight_fetch_is_not_enqueued_twice(self):
+        manager, _t = self._manager_with_dump()
+
+        assert manager.app_label("ar.tvplayer.tv") is None
+        assert manager.app_label("ar.tvplayer.tv") is None  # same render loop
+        assert manager.app_label_requests == {"ar.tvplayer.tv"}
+        assert manager.app_label_inflight == set()
+
+    async def test_one_fetch_per_cycle_even_under_a_burst(self):
+        manager, _t = self._manager_with_dump()
+        manager._poller.pm_dumps["com.a"] = "application-label: 'A'"
+        manager._poller.pm_dumps["com.b"] = "application-label: 'B'"
+
+        manager.app_label("com.a")
+        manager.app_label("com.b")
+        await manager._watchdog_cycle(5.0)
+        await manager._watchdog_cycle(5.0)
+        import asyncio
+
+        await asyncio.sleep(0)
+
+        dumps = [c for c in manager._poller.shell_calls if "pm dump" in c]
+        assert len(dumps) == 2  # one per cycle, both eventually resolved
+        assert sorted([manager.app_label("com.a"), manager.app_label("com.b")]) == [
+            "A",
+            "B",
+        ]
+
+    async def test_pm_dump_command_is_shell_quoted(self):
+        """t26 F2: the package argument is shlex.quote'd (consistent)."""
+        import shlex
+
+        wicked = "com.evil;name"
+        manager, _t = self._manager_with_dump()
+        manager._poller.pm_dumps[wicked] = "application-label: 'E'"
+
+        manager.app_label(wicked)  # enqueue
+        await manager._watchdog_cycle(5.0)
+        import asyncio
+
+        await asyncio.sleep(0)  # drain the fetch task
+
+        # t57: the dump carries the exit marker too, so a blank answer can be
+        # told from a FAILED fetch; the package is still quoted
+        assert manager._poller.shell_calls == [
+            f"pm dump {shlex.quote(wicked)} 2>/dev/null | head -300; "
+            f"echo {APP_LABEL_EXIT_MARKER}$?"
+        ]
+
+
+class TestLogcatStream:
+    """P5-3: the dedicated logcat fast-path behind CONF_LOGCAT_EVENTS."""
+
+    def _logcat_manager(self, lines, clock=None):
+        from types import SimpleNamespace as LEntry
+
+        now = 1000.0
+        poller = FakePoller()
+        poller.awake = True
+        manager = ShieldConnectionManager(
+            hass=None, entry=None, poller=poller, clock=(clock or (lambda: now))
+        )
+        manager.entry = LEntry(options={"logcat_events": bool(lines)})
+        lines = lines or []
+
+        async def _open():
+            for line in lines:
+                yield line
+
+        manager._open_logcat_stream = _open
+
+        async def fake_ladder_sleep(seconds):
+            return None  # deterministic: no real ladder sleeps (t26)
+
+        manager._logcat_ladder_sleep = fake_ladder_sleep
+        return manager, now
+
+    async def test_start_stamps_foreground_instantly(self):
+        manager, _now = self._logcat_manager(
+            [
+                "03-21 10:19:41.792  3104  3456 I ActivityTaskManager:"
+                " START u0 {cmp=com.netflix.ninja/x}",
+            ]
+        )
+        notified = []
+        manager.register_listener(lambda: notified.append(1))
+
+        await manager._watchdog_cycle(5.0)  # starts the consumer
+
+        import asyncio
+
+        await asyncio.sleep(0)  # drain the task
+        assert manager.store.get("foreground") == "com.netflix.ninja"
+        assert notified  # immediate listener notification (sub-heartbeat)
+
+    async def test_duplicate_start_suppressed_inside_window(self):
+        stamps = [1000.0, 1005.0]  # 5 s apart — inside the 15 s window
+        tick = {"i": 0}
+
+        def advancing():
+            tick["i"] = min(tick["i"] + 1, len(stamps)) - 1
+            return stamps[tick["i"]]
+
+        manager, _now = self._logcat_manager(
+            [
+                "03-21 10:19:41.792  I ActivityTaskManager: START u0 {cmp=com.netflix.ninja/x}",
+                "03-21 10:19:43.000  I ActivityTaskManager: START u0 {cmp=com.netflix.ninja/x}",
+            ],
+            clock=advancing,
+        )
+        store_sets = {"n": 0}
+        original_set = manager.store.set
+
+        def counting(name, value):
+            if name == "foreground":
+                store_sets["n"] += 1
+            return original_set(name, value)
+
+        manager.store.set = counting
+
+        await manager._watchdog_cycle(5.0)
+        await manager._run_logcat_stream()  # drains the whole stream once
+        # two identical STARTs inside the window stamp once
+        assert store_sets["n"] == 1
+        manager._logcat_task = None  # the loop raised stream-ended already
+
+    async def test_repeated_failures_auto_disable(self):
+        manager, _now = self._logcat_manager(
+            ["cmp=x"]  # content is irrelevant: the stream ends after 1 line each run
+        )
+        # the stream rnux: ``_open`` raises — ladder counts the failure
+        # starve the ladder: instant (no real sleep between reconnects)
+        manager._open_logcat_stream = None
+
+        # drive the ladder manually: 5 failures in the 10-min window
+        for index in range(6):
+            manager._note_logcat_failure(1000.0 + index)
+
+        assert manager._logcat_disabled is True  # auto-disable at 5
+        assert manager._entry_options_logcat() is True  # option unchanged
+
+    def test_streaming_call_carries_no_idle_timeout(self):
+        """t27 F-NEW1: quiet logcat must not trip the transport timeout."""
+        import inspect
+
+        src = inspect.getsource(ShieldConnectionManager._open_logcat_stream)
+        assert "transport_timeout_s=None" in src  # bulk_read blocks
+        assert "default_transport_timeout_s=10.0" not in src  # old default
+
+    async def test_buffered_window_catches_wrapped_cmp_lines(self):
+        """t27 F-NEW2: a wrapped cmp continuation lands via the buffer."""
+        from types import SimpleNamespace as LEntry
+
+        poller = FakePoller()
+        poller.awake = True
+        manager = ShieldConnectionManager(
+            hass=None, entry=None, poller=poller, clock=lambda: 1000.0
+        )
+        manager.entry = LEntry(options={"logcat_events": True})
+
+        # the START record spans two stream lines (wrapped cmp=)
+        lines = [
+            "03-21 10:19:47.000  3104  3456 I"
+            " ActivityTaskManager: START u0 {cmp=ar.tvplayer.tv",
+            "        /.ui.MainActivity flg=0x1}",
+        ]
+
+        async def _open():
+            for line in lines:
+                yield line
+
+        manager._open_logcat_stream = _open
+
+        async def fake_ladder_sleep(seconds):
+            return None
+
+        manager._logcat_ladder_sleep = fake_ladder_sleep
+
+        raised = None
+        try:
+            await manager._logcat_pass()
+        except Exception as err:  # the pass ends with stream-ended
+            raised = err
+        assert raised is not None  # stream-ended raises by contract
+        assert manager.store.get("foreground") == "ar.tvplayer.tv"
+
+    def test_public_config_accessor_is_the_source(self):
+        """t27 F-NEW3: the opener consumes AdbClientBase.config publicly."""
+        import inspect
+
+        src = inspect.getsource(ShieldConnectionManager._open_logcat_stream)
+        assert "poller.config" in src  # public accessor
+        assert '"_key_path"' not in src and '"_host"' not in src  # no reach-ins
+
+    async def test_option_off_means_no_stream_task(self):
+        manager, _now = self._logcat_manager(None)  # logcat_events: falsy
+        await manager._watchdog_cycle(5.0)
+        await manager._watchdog_cycle(5.0)
+        assert manager._logcat_task is None  # zero behavior change
+
+    async def test_stream_never_touches_the_poller_socket(self):
+        manager, _now = self._logcat_manager(
+            [
+                "03-21 10:19:41.792  3104  3456 I ActivityTaskManager:"
+                " START u0 {cmp=com.netflix.ninja/x}",
+            ]
+        )
+        await manager._watchdog_cycle(5.0)
+        assert manager._poller.shell_calls == []  # dedicated connection, not the poller
+
+
+class TestForegroundFallback:
+    async def test_stamps_field_foreground_when_protocol_silent(self):
+        poller = FakePoller()
+        poller.awake = True
+        poller.foreground = "ar.tvplayer.tv"  # TiviMate, no session (R2)
+        manager = _manager(poller)
+
+        await manager._watchdog_cycle(5.0)
+
+        assert poller.foreground_calls == 1
+        assert manager.store.get("foreground") == "ar.tvplayer.tv"
+        # store priority: protocol push wins over the ADB parse
+        assert manager.foreground_app == "ar.tvplayer.tv"
+
+    async def test_protocol_push_overrides_adb_foreground(self):
+        poller = FakePoller()
+        poller.awake = True
+        poller.foreground = "ar.tvplayer.tv"
+        manager = _manager(poller)
+        manager.store.set("current_app", "com.netflix.ninja")  # live push
+
+        await manager._watchdog_cycle(5.0)
+
+        assert poller.foreground_calls == 0  # skipped — push is fresh
+        assert manager.foreground_app == "com.netflix.ninja"
+
+    async def test_no_foreground_query_when_asleep(self):
+        poller = FakePoller()
+        poller.awake = False
+        manager = _manager(poller)
+
+        await manager._watchdog_cycle(5.0)
+
+        assert poller.foreground_calls == 0
+        assert manager.store.get("foreground") is None
+
+
+class TestAudioPlaybackFilter:
+    async def test_system_media_packages_filtered(self):
+        poller = FakePoller()
+        poller.awake = True
+        poller.audio_dump = (
+            " Audio playback (lastly played comes first)\n"
+            "  uid=1 packages=com.google.android.apps.mediashell\n"
+            "  uid=2 packages=ar.tvplayer.tv\n"
+            "  uid=3 packages=com.android.systemui\n"
+        )
+        manager = _manager(poller)
+
+        await manager._watchdog_cycle(5.0)
+
+        assert manager.audio_playback == ["ar.tvplayer.tv"]
+
+
+class TestLastKnownStateCache:
+    async def test_serves_last_known_when_no_session(self):
+        poller = FakePoller()
+        poller.awake = True
+        poller.sessions = [MediaSessionInfo(package="ar.tvplayer.tv", playing=True)]
+        manager = _manager(poller)
+
+        await manager._watchdog_cycle(5.0)
+
+        # later: TiviMate stops publishing; foreground has no session
+        poller.sessions = []
+        await manager._watchdog_cycle(5.0)
+
+        served = manager.best_session("ar.tvplayer.tv")
+        assert served is not None
+        assert served.playing is True  # the last known state
+
+        info, stamp = manager.last_known_state("ar.tvplayer.tv")
+        assert info is served
+        assert stamp is not None
+
+    async def test_expiry_never_resurrects_playing(self):
+        """P3-2d expiry contract, deterministic via the injected clock."""
+        now = 1000.0
+        poller = FakePoller()
+        poller.awake = True
+        poller.sessions = [MediaSessionInfo(package="ar.tvplayer.tv", playing=True)]
+        manager = _manager(poller, clock=lambda: now)
+
+        await manager._watchdog_cycle(5.0)
+        assert manager.last_known_session("ar.tvplayer.tv") is not None
+
+        # TTL passes with no further caching — 'playing' must NOT come back
+        now += manager.store.ttl + 0.05
+
+        assert manager.last_known_session("ar.tvplayer.tv") is None
+        assert manager.last_known_state("ar.tvplayer.tv") == (None, None)
+        assert manager.best_session("ar.tvplayer.tv") is None
+
+    async def test_state_inside_ttl_is_served(self):
+        now = 1000.0
+        poller = FakePoller()
+        poller.awake = True
+        poller.sessions = [MediaSessionInfo(package="ar.tvplayer.tv", playing=True)]
+        manager = _manager(poller, clock=lambda: now)
+        await manager._watchdog_cycle(5.0)
+
+        now += manager.store.ttl - 1.0  # inside the TTL
+
+        info, stamp = manager.last_known_state("ar.tvplayer.tv")
+        assert info is not None and info.playing is True
+        assert stamp == 1000.0  # the cycle's cache stamp
+
+    async def test_live_session_beats_last_known(self):
+        poller = FakePoller()
+        poller.awake = True
+        poller.sessions = [MediaSessionInfo(package="app.old", playing=True)]
+        manager = _manager(poller)
+        await manager._watchdog_cycle(5.0)
+
+        # a live (non-matching) session exists → served before the cache
+        served = manager.best_session("ar.tvplayer.tv")
+        assert served is not None and served.package == "app.old"
+
+    async def test_cache_cleared_on_stop(self):
+        poller = FakePoller()
+        poller.awake = True
+        poller.sessions = [MediaSessionInfo(package="ar.tvplayer.tv", playing=True)]
+        manager = _manager(poller)
+        await manager._watchdog_cycle(5.0)
+
+        await manager.async_stop()
+
+        assert manager._last_known == {}
+
+
+class TestConnectAndRefresh:
+    async def test_cycle_connects_and_populates_store(self):
+        poller = FakePoller()
+        poller.awake = True
+        poller.sessions = [MediaSessionInfo(package="app.a", playing=True)]
+        poller.apps = [{"package": "app.a"}]
+        poller.audio_dump = " Audio playback (lastly played comes first)\n  uid=1 packages=app.a\n"
+
+        manager = _manager(poller)
+        notified = []
+        unsub = manager.register_listener(lambda: notified.append(True))
+
+        delay = await manager._watchdog_cycle(5.0)
+
+        assert delay == ADB_POLL_INTERVAL
+        assert manager.connected is True
+        assert manager.awake is True
+        assert manager.best_session("app.a").package == "app.a"
+        assert manager.running_apps == [{"package": "app.a"}]
+        assert manager.audio_playback == ["app.a"]
+        assert notified, "listener must be notified after a refresh"
+        unsub()
+        assert manager._listeners == []
+
+    async def test_query_is_untruncated(self):
+        """The manager always asks for the full dump (plan blocker B4)."""
+        poller = FakePoller()
+        poller.awake = True
+        manager = _manager(poller)
+        await manager._watchdog_cycle(5.0)
+        assert poller.head_lines_used is None
+
+    async def test_standby_expires_playback_fields(self):
+        """Asleep → sessions/audio/apps are expired, awake stays False."""
+        poller = FakePoller()
+        poller.awake = False
+        manager = _manager(poller)
+        manager.store.set(FIELD_SESSIONS, [MediaSessionInfo(package="old.app")])
+        manager.store.set(FIELD_AWAKE, True)  # stale truth, about to flip
+
+        await manager._watchdog_cycle(5.0)
+
+        assert manager.awake is False
+        assert manager.active_sessions == []
+        assert manager.audio_playback == []
+        assert manager.running_apps == []
+
+    async def test_awake_none_is_a_cycle_failure(self):
+        """Wake check returning None must back off instead of storing unknown."""
+        poller = FakePoller()
+        poller.connected = True
+        manager = _manager(poller)
+        manager.store.set(FIELD_AWAKE, True)
+
+        delay = await manager._watchdog_cycle(5.0)
+
+        assert delay is not None
+        assert delay < 10.0  # backoff-scaled, not the heartbeat interval
+        assert manager.awake is None  # stale True dropped
+
+    async def test_foreground_preference_and_playing_order(self):
+        poller = FakePoller()
+        poller.awake = True
+        # parse order convention: playing first
+        poller.sessions = [
+            MediaSessionInfo(package="app.playing", playing=True),
+            MediaSessionInfo(package="app.paused", paused=True),
+        ]
+        manager = _manager(poller)
+        await manager._watchdog_cycle(5.0)
+
+        assert manager.best_session("app.paused").package == "app.paused"
+        assert manager.best_session().package == "app.playing"
+        assert manager.best_session("app.unknown").package == "app.playing"
+
+
+class TestReconnectBackoff:
+    async def test_failed_connect_returns_backoff_scaled_delay(self):
+        poller = FakePoller()
+        poller.connect_failures = 1
+        manager = _manager(poller)
+
+        delay = await manager._watchdog_cycle(5.0)
+
+        assert not poller.connected
+        assert 5.0 * 0.75 <= delay <= 5.0 * 1.25  # ±jitter around the backoff
+        assert manager._failures == 1
+
+    async def test_backoff_doubles_up_to_the_cap(self):
+        poller = FakePoller()
+        poller.connect_failures = 1
+        manager = _manager(poller)
+
+        delays = []
+        backoffs = []
+        backoff = 5.0
+        for _ in range(7):
+            backoffs.append(backoff)
+            delays.append(await manager._watchdog_cycle(backoff))
+            backoff = min(backoff * 2, 300.0)
+
+        # F5 soundness: the previous ±25 % jitter could flake the claim
+        # delays[1] > delays[0] * 1.5: BACKOFF=10 jittered to 9.17 vs
+        # BACKOFF=5 jittered to 6.25 → 6.25*1.5 = 9.375). Assert only what
+        # jitter guarantees: each delay sits inside ITS OWN backoff's band
+        # (non-overlapping consecutive bands ⇒ delays[1] >= delays[0],
+        # since min next = 7.5 >= max first = 6.25), and never above the cap.
+        for backoff, delay in zip(backoffs, delays, strict=True):
+            assert 0.75 * backoff <= delay <= 1.25 * backoff
+        assert delays[1] >= delays[0]
+        assert delays[-1] <= 300.0 * 1.25
+
+    async def test_repeated_failures_do_not_spam_listeners(self):
+        poller = FakePoller()
+        poller.connect_failures = 99
+        manager = _manager(poller)
+        notified = []
+        manager.register_listener(lambda: notified.append(True))
+
+        for _ in range(3):
+            await manager._watchdog_cycle(5.0)
+
+        assert notified.count(None) == 0
+        assert len(notified) == 1, "down-notified exactly once until recovery"
+
+    async def test_recovery_resets_failures_and_backoff(self):
+        poller = FakePoller()
+        poller.connect_failures = 0
+        poller.awake = True
+        manager = _manager(poller)
+
+        await manager._watchdog_cycle(5.0)  # fresh connect → ok
+        assert manager._failures == 0
+        assert await manager._watchdog_cycle(5.0) == ADB_POLL_INTERVAL
+
+    async def test_failed_wake_poll_forces_reconnect(self):
+        """health_check drives the reconnect decision: a cycle where is_awake
+        fails closes the socket so the next cycle reconnects from scratch."""
+        poller = FakePoller()
+        poller.connected = True
+        poller.awake = None  # wake poll fails while the flag says "connected"
+        manager = _manager(poller)
+
+        delay = await manager._watchdog_cycle(5.0)
+
+        assert 5.0 * 0.75 <= delay <= 5.0 * 1.25  # F5-style symmetric bound
+        assert poller.disconnect_calls == 1
+        assert poller.connected is False
+        assert manager._failures == 1
+
+    async def test_connect_failure_clears_stale_store_state(self):
+        poller = FakePoller()
+        poller.connect_failures = 1
+        manager = _manager(poller)
+        manager.store.set(FIELD_AWAKE, True)
+        sessions = [MediaSessionInfo(package="app.a", playing=True)]
+        manager.store.set(FIELD_SESSIONS, sessions)
+
+        await manager._watchdog_cycle(5.0)
+
+        assert manager.awake is None
+        assert manager.active_sessions == []
+
+
+class TestCommandDelegation:
+    async def test_send_media_command_requires_poller(self):
+        manager = _manager(poller=None)
+        assert manager.available is False
+        assert await manager.send_media_command("play") is False
+
+    async def test_send_media_command_delegates(self):
+        poller = FakePoller()
+        poller.awake = True
+        manager = _manager(poller)
+        await manager._watchdog_cycle(5.0)
+        assert await manager.send_media_command("play") is True
+
+    async def test_bring_to_foreground(self):
+        poller = FakePoller()
+        poller.awake = True
+        manager = _manager(poller)
+        await manager._watchdog_cycle(5.0)
+        assert await manager.bring_to_foreground("app.a") is True
+
+
+class TestLifecycle:
+    async def test_passive_manager_exits_immediately(self):
+        """No factory → no watchdog loop; entry stays functional without ADB."""
+        manager = ShieldConnectionManager(hass=None, entry=types.SimpleNamespace())
+        await manager.async_start()
+        await asyncio.sleep(0.01)
+        assert manager.available is False
+        assert manager.connected is False
+        assert await manager.send_media_command("play") is False
+        await manager.async_stop()
+
+    async def test_async_stop_disconnects_and_cancels_tasks(self):
+        poller = FakePoller()
+        poller.awake = True
+        manager = _manager(poller)
+        await manager.async_start()
+        await asyncio.sleep(0)  # let the watchdog task start
+
+        assert manager.available
+        await manager.async_stop()
+
+        assert poller.disconnect_calls == 1
+        assert manager._poller is None
+        assert manager._tasks == []
+        assert manager._stopping is True
+
+    async def test_stop_is_idempotent(self):
+        manager = _manager(FakePoller())
+        await manager.async_stop()
+        await manager.async_stop()
+
+    async def test_factory_used_when_no_poller_given(self):
+        poller = FakePoller()
+        poller.awake = True
+        manager = ShieldConnectionManager(
+            hass=None, entry=None, poller_factory=lambda: poller
+        )
+        await manager.async_start()
+        await asyncio.sleep(0)
+        await manager.async_stop()
+        assert poller.disconnect_calls == 1
+
+
+class TestStoreTtlInManager:
+    async def test_expired_session_reads_as_none(self):
+        """Full manager view: TTL expiry means 'state unavailable', not
+        'last known playing'."""
+        now = [1000.0]
+        store = StateStore(ttl=60.0, clock=lambda: now[0])
+        manager = _manager(store=store)
+        manager.store.set(
+            FIELD_SESSIONS, [MediaSessionInfo(package="app.a", playing=True)]
+        )
+        now[0] += 60.1
+        assert manager.best_session() is None
+
+
+@pytest.mark.parametrize("owned", [True, False])
+async def test_watchdog_cycle_never_raises(owned):
+    """A poller can throw anything — the cycle converts to a backoff delay."""
+    poller = FakePoller()
+
+    class ExplodingPoller(FakePoller):
+        async def is_awake(self):
+            raise RuntimeError("boom")
+
+    manager = _manager(ExplodingPoller() if owned else poller)
+    delay = await manager._watchdog_cycle(5.0)
+    assert delay > 0

tests/test_entity_contract.py

@@ -0,0 +1,126 @@
+"""Entity-contract shape checks (t40) — the defect class stubs cannot see.
+
+The stub suites drive entities through hand-written fakes and replace
+``async_write_ha_state``, so a non-property ``extra_state_attributes`` looks
+perfectly healthy there while a live install raises
+``TypeError: 'method' object is not iterable`` on every state write and the
+entity never renders.
+
+The check lives in ``tests/ha_api_drift.py`` (``scan_entity_contracts``) so this
+suite and the drift sweep share ONE implementation — and the CI drift job, which
+runs against a real Home Assistant, gates the same code path.
+"""
+
+import ast
+from pathlib import Path
+
+import ha_api_drift
+from conftest import _SHIELD_DIR
+
+_PLAIN_DEF = "    def extra_state_attributes(self) -> dict:"
+
+#: The t40 shape: HA reads ``extra_state_attributes`` as an attribute
+#: (``attr |= self.extra_state_attributes``), so a method here is a crash.
+_PRE_FIX = f'''
+from homeassistant.components.media_player import MediaPlayerEntity
+
+
+class Player(MediaPlayerEntity):
+{_PLAIN_DEF}
+        return {{"app_id": "x"}}
+'''
+
+_FIXED = f'''
+from homeassistant.components.media_player import MediaPlayerEntity
+
+
+class Player(MediaPlayerEntity):
+    @property
+{_PLAIN_DEF}
+        return {{"app_id": "x"}}
+'''
+
+_INHERITED_BASE = '''
+from homeassistant.components.sensor import SensorEntity
+
+
+class Base(SensorEntity):
+    """Our own intermediate base — subclasses are entities too."""
+
+
+class Child(Base):
+    def native_value(self):
+        return "x"
+'''
+
+
+def _findings(tmp_path, source: str):
+    (tmp_path / "module.py").write_text(source, encoding="utf-8")
+    return ha_api_drift.scan_entity_contracts(tmp_path)
+
+
+def test_no_entity_attribute_in_the_tree_is_a_plain_method():
+    """t40: this is the assertion that fails on the pre-fix media_player.py."""
+    assert ha_api_drift.scan_entity_contracts() == []
+
+
+def test_the_check_flags_the_pre_fix_shape(tmp_path):
+    expected_line = _PRE_FIX.splitlines().index(_PLAIN_DEF) + 1
+
+    findings = _findings(tmp_path, _PRE_FIX)
+
+    assert [finding.kind for finding in findings] == ["entity-attribute-is-a-method"]
+    assert findings[0].lineno == expected_line
+    assert "Player.extra_state_attributes" in findings[0].detail
+    assert "@property" in findings[0].detail
+
+
+def test_the_check_accepts_the_property_form(tmp_path):
+    assert _findings(tmp_path, _FIXED) == []
+
+
+def test_the_check_follows_our_own_intermediate_bases(tmp_path):
+    """NvidiaShieldSensorBase-style bases must not hide their subclasses."""
+    findings = _findings(tmp_path, _INHERITED_BASE)
+
+    assert [finding.detail.split()[0] for finding in findings] == ["Child.native_value"]
+
+
+def test_the_tree_classification_is_not_vacuous():
+    """A classifier that sees no entities would pass every check above."""
+    classified: set[str] = set()
+    for path in sorted(_SHIELD_DIR.glob("*.py")):
+        classified |= ha_api_drift.entity_class_names(ast.parse(path.read_text(encoding="utf-8")))
+
+    assert {
+        "NvidiaShieldMediaPlayer",
+        "NvidiaShieldCurrentAppSensor",
+        "NvidiaShieldNowPlayingSensor",
+        "NvidiaShieldRemoteEntity",
+        "NvidiaShieldPairAdbButton",
+    } <= classified
+
+
+def test_the_sweep_reports_the_same_findings_as_this_check(tmp_path):
+    """One implementation: the sweep's report carries the contract pass too."""
+    (tmp_path / "module.py").write_text(_PRE_FIX, encoding="utf-8")
+
+    report = ha_api_drift.scan(tmp_path)
+    kinds = [finding.kind for finding in report.findings]
+
+    # The contract pass runs FIRST (pure AST). What the API passes add after it
+    # depends on the interpreter: with homeassistant installed they judge the
+    # module's imports, without it the sweep says it cannot judge (both are
+    # covered here so the check holds in either variant).
+    assert kinds[0] == "entity-attribute-is-a-method"
+    rest = set(kinds[1:])
+    if ha_api_drift.homeassistant_available():
+        # the API passes ran and found nothing wrong with this module
+        assert rest == set(), rest
+    else:
+        assert "no-homeassistant" in rest
+
+
+def test_the_check_ignores_missing_paths_instead_of_raising():
+    """scan() owns the bad-path finding; the pass just skips."""
+    assert ha_api_drift.scan_entity_contracts(Path("/nonexistent-does-not-exist")) == []

tests/test_foreground_parser.py

@@ -0,0 +1,76 @@
+"""P3-2a tests: the mResumedActivity foreground parser (RESEARCH_SHIELD R4).
+
+Fixture-driven from the on-device captures; the launcher case comes from the
+R4-documented custom-launcher capture. Window-focus parsing is never used
+(R4 finding 2: mCurrentFocus=null trap).
+"""
+
+from pathlib import Path
+
+from nsh.ha_adb_common import parse_foreground
+
+FIXTURES = Path(__file__).parent / "fixtures"
+
+# R4: the on-device capture (grep -iE 'resumed') — the wrapped ActivityRecord
+# plus tolerated Resumed/ResumedActivity duplicates.
+_TIVIMATE_DUMP = (FIXTURES / "activity_activities_tivimate.txt").read_text()
+
+
+def test_tivimate_fixture_primary_pattern():
+    assert parse_foreground(_TIVIMATE_DUMP) == "ar.tvplayer.tv"
+
+
+def test_launcher_foreground_from_r4_capture():
+    # R4 finding 4: the user's custom launcher is a legitimate foreground app.
+    dump = (
+        "mResumedActivity: ActivityRecord{abcd1234 u0 com.spocky.projengmenu"
+        "/.ui.home.MainActivity\n"
+        "              state=RESUMED stopped=false delayedResume=false finishing=false\n"
+    )
+    assert parse_foreground(dump) == "com.spocky.projengmenu"
+
+
+def test_multiline_wrap_joined_before_matching():
+    # The wrap splits right after <pkg>/<activity>; the package must survive.
+    dump = (
+        "    mResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity\n"
+        "    t8152}\n"
+    )
+    assert parse_foreground(dump) == "ar.tvplayer.tv"
+
+
+def test_topresumed_only_fallback():
+    # Newer firmware: no mResumedActivity, only topResumedActivity (checked after).
+    dump = (
+        "  topResumedActivity: ActivityRecord{aa11bb22 u0 com.other.app/.Main t1}\n"
+    )
+    assert parse_foreground(dump) == "com.other.app"
+
+
+def test_topresumed_never_beats_primary():
+    dump = (
+        "  mResumedActivity: ActivityRecord{x u0 primary.pkg/.Main t1}\n"
+        "  topResumedActivity: ActivityRecord{y u0 newer.pkg/.Main t2}\n"
+    )
+    assert parse_foreground(dump) == "primary.pkg"
+
+
+def test_empty_and_garbage_return_none():
+    assert parse_foreground("") is None
+    assert parse_foreground("some random log lines\nwithout any resumed marker") is None
+
+
+def test_resumed_duplicates_tolerated():
+    # Resumed: / ResumedActivity: / mResumedActivity: all describe the same app.
+    dump = (
+        "      Resumed activities in task display areas (from top to bottom):\n"
+        "        Resumed: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}\n"
+        "      ResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}\n"
+        "mResumedActivity: ActivityRecord{4f0d030 u0 ar.tvplayer.tv/.ui.MainActivity t8152}\n"
+    )
+    assert parse_foreground(dump) == "ar.tvplayer.tv"
+
+
+def test_null_package_never_returned():
+    dump = "mResumedActivity: ActivityRecord{4f0d030 u0 null/null t1}\n"
+    assert parse_foreground(dump) is None

tests/test_ha_api_drift.py

@@ -0,0 +1,482 @@
+"""Run the Home-Assistant API-drift sweep (t37).
+
+Skips cleanly when homeassistant is not installed — every other test file runs
+against hand-written stubs, and this is the one check that must see the real
+package. CI's `ha-api-drift` job installs it:
+
+    uvx --with homeassistant --with pytest-asyncio pytest tests/test_ha_api_drift.py -q
+
+The sweep itself lives in ``tests/ha_api_drift.py`` (documented there).
+"""
+
+from __future__ import annotations
+
+import ast
+import importlib
+import subprocess
+import sys
+import threading
+from pathlib import Path
+from types import SimpleNamespace
+
+import ha_api_drift
+import pytest
+
+pytest.importorskip(
+    "homeassistant",
+    reason="the API-drift sweep resolves our call sites against a real install",
+)
+
+#: The three t36 drifts plus the `options_updates` kwarg t35 removed — the
+#: sweep must flag every one of them, or it cannot protect us from the next.
+PRE_FIX_SOURCES = {
+    "d1_browse_media_source.py": (
+        "from homeassistant.components.media_player import BrowseMediaSource\n"
+    ),
+    "d2_util_diagnostic.py": (
+        "from homeassistant.util.diagnostic import async_redact_data\n"
+    ),
+    "d3_unawaited_discovery.py": (
+        "from homeassistant import config_entries\n"
+        "\n"
+        "\n"
+        "class PreFixFlow(config_entries.ConfigFlow, domain='nvidia_shield'):\n"
+        "    async def async_step_zeroconf(self, discovery_info):\n"
+        "        self._async_handle_discovery_without_unique_id()\n"
+    ),
+    # t57 UNIT 0a: a wrong kwarg on a FLOW-DISPLAY API. `async_show_menu` takes
+    # no `errors` in HA 2026.10.1, and the integration passed one — so every
+    # ordinary setup path raised TypeError at the moment a user submitted the
+    # first form, which is invisible to a stub suite whose stubs accept it.
+    "t57_show_menu_errors.py": (
+        "from homeassistant import config_entries\n"
+        "\n"
+        "\n"
+        "class PreFixSetupMenu(config_entries.ConfigFlow, domain='nvidia_shield'):\n"
+        "    async def async_step_user(self, user_input=None):\n"
+        "        return self.async_show_menu(\n"
+        "            step_id='menu',\n"
+        "            menu_options=['finish'],\n"
+        "            errors={\'base\': \'nope\'},\n"
+        "        )\n"
+    ),
+    "t35_options_updates.py": (
+        "from homeassistant import config_entries\n"
+        "\n"
+        "\n"
+        "class PreFixReauthFlow(config_entries.ConfigFlow, domain='nvidia_shield'):\n"
+        "    async def async_step_reauth_confirm(self, user_input=None):\n"
+        "        self.async_update_reload_and_abort(\n"
+        "            self.entry, options_updates={'protocol_enabled': True}\n"
+        "        )\n"
+        "        return self.async_abort(reason='reauth_successful')\n"
+    ),
+}
+
+
+def _require_installed_homeassistant():
+    """Skip when sys.modules holds a test stub rather than an install."""
+    import sys
+
+    module = sys.modules["homeassistant"]
+    path = getattr(module, "__file__", None)
+    if path is None or not Path(path).exists():
+        pytest.skip("homeassistant in sys.modules is a test stub, not an install")
+
+
+def test_no_api_drift_in_the_production_tree():
+    """The gate: every HA import, kwarg and await matches the real package."""
+    _require_installed_homeassistant()
+
+    report = ha_api_drift.scan()
+
+    assert report.findings == [], "\n" + str(report)
+
+
+def test_the_sweep_is_not_vacuous():
+    """The counters prove the walk really covered the production tree."""
+    _require_installed_homeassistant()
+
+    report = ha_api_drift.scan()
+
+    # Floors, not targets: the numbers live in ha_api_drift.FLOORS — one source
+    # of truth for this wrapper and the standalone entry point (t39 F1) — so a
+    # broken or mis-targeted walk fails here instead of looking green.
+    violations = report.floor_violations()
+
+    assert violations == [], "\n".join(violations)
+
+
+def test_the_sweep_flags_the_pre_fix_defects(tmp_path):
+    """Red proof: the t36 drifts and the options_updates kwarg are all caught."""
+    _require_installed_homeassistant()
+
+    for name, source in PRE_FIX_SOURCES.items():
+        (tmp_path / name).write_text(source, encoding="utf-8")
+
+    report = ha_api_drift.scan(tmp_path)
+
+    found = {(finding.path, finding.kind) for finding in report.findings}
+    assert found == {
+        ("d1_browse_media_source.py", "broken-import"),
+        ("d2_util_diagnostic.py", "broken-import"),
+        ("d3_unawaited_discovery.py", "missing-await"),
+        ("t35_options_updates.py", "unknown-kwarg"),
+        ("t57_show_menu_errors.py", "unknown-kwarg"),
+    }, "\n" + str(report)
+
+
+def test_the_sweep_accepts_the_fixed_forms(tmp_path):
+    """The same call sites written the way production writes them are clean."""
+    _require_installed_homeassistant()
+
+    (tmp_path / "fixed.py").write_text(
+        "from homeassistant.components.media_player import BrowseMedia\n"
+        "from homeassistant.helpers.redact import async_redact_data\n"
+        "from homeassistant import config_entries\n"
+        "\n"
+        "\n"
+        "class FixedFlow(config_entries.ConfigFlow, domain='nvidia_shield'):\n"
+        "    async def async_step_zeroconf(self, discovery_info):\n"
+        "        await self._async_handle_discovery_without_unique_id()\n"
+        "\n"
+        "    def finish(self):\n"
+        "        return self.async_update_reload_and_abort(\n"
+        "            self.entry, options={'protocol_enabled': True}\n"
+        "        )\n",
+        encoding="utf-8",
+    )
+
+    report = ha_api_drift.scan(tmp_path)
+
+    assert report.findings == [], "\n" + str(report)
+
+
+def _run_drift_module(*paths):
+    """Run the standalone entry point in this (HA-bearing) interpreter."""
+    return subprocess.run(
+        [
+            sys.executable,
+            str(Path(ha_api_drift.__file__).resolve()),
+            *[str(path) for path in paths],
+        ],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+
+
+def test_the_standalone_entry_point_passes_on_the_production_tree():
+    """F1: the CLI is the sweep, with the same verdict on the real tree."""
+    result = _run_drift_module()
+
+    assert result.returncode == 0, result.stderr
+    assert "no Home-Assistant API drift" in result.stdout
+
+
+def test_the_standalone_entry_point_fails_on_an_empty_directory(tmp_path):
+    """t39 F1: zeros must not exit 0 — the floors apply to the CLI too."""
+    result = _run_drift_module(tmp_path)
+
+    assert result.returncode != 0
+    assert "0 modules" in result.stdout  # the counter that used to look green
+    assert "FLOOR:" in result.stderr
+    assert "drift sweep FAILED" in result.stderr
+
+
+def test_the_standalone_entry_point_fails_on_a_missing_path(tmp_path):
+    """A mis-specified path is a failure, not a silent zero-module sweep."""
+    result = _run_drift_module(tmp_path / "not-a-directory")
+
+    assert result.returncode != 0
+    assert "bad-path" in result.stdout
+
+
+def test_no_floor_constants_are_duplicated_in_this_wrapper():
+    """F1: the floors come from ha_api_drift.FLOORS — nowhere else."""
+    source = Path(__file__).read_text(encoding="utf-8")
+    tree = ast.parse(source)
+
+    local_ints = [
+        target.id
+        for node in tree.body
+        if isinstance(node, ast.Assign)
+        for target in node.targets
+        if isinstance(target, ast.Name)
+        and isinstance(node.value, ast.Constant)
+        and isinstance(node.value.value, int)
+    ]
+
+    assert local_ints == [], f"floor-like constants belong in ha_api_drift: {local_ints}"
+    assert "floor_violations" in source
+
+
+def test_the_declared_python_floor_never_lags_homeassistant():
+    """F2: the CI guard's floor is HA's own Requires-Python, not a guess."""
+    _require_installed_homeassistant()
+
+    import importlib.metadata as metadata
+
+    declared = metadata.metadata("homeassistant")["Requires-Python"]
+    parsed = ha_api_drift.parse_requires_python(declared)
+
+    assert parsed is not None, f"unparsable Requires-Python: {declared!r}"
+    assert tuple(parsed) <= ha_api_drift.HOMEASSISTANT_PYTHON_FLOOR, (
+        f"tests/ha_api_drift.py declares {ha_api_drift.HOMEASSISTANT_PYTHON_FLOOR} "
+        f"but the installed homeassistant requires {declared} — raise the constant "
+        f"and the setup-python version in .gitea/workflows/test.yml"
+    )
+
+
+# ------------------------------------------------- entity contract (t40, real HA)
+#
+# The stub suites cannot see this class of defect: their harness replaces
+# ``async_write_ha_state``, so a non-property ``extra_state_attributes`` looks
+# fine there. Only HA's own ``Entity.__async_calculate_state`` — which does
+# ``attr |= self.extra_state_attributes`` — turns it into
+# ``TypeError: 'method' object is not iterable`` and stops the entity from ever
+# rendering. These tests drive that real path.
+
+_REPO_ROOT = Path(__file__).resolve().parent.parent
+
+
+class _RecordingStates:
+    """Minimal ``hass.states``: keeps what HA's entity writes."""
+
+    def __init__(self):
+        self.registry: dict = {}
+        self.written: list = []
+
+    def get(self, entity_id):
+        return self.registry.get(entity_id)
+
+    def async_set_internal(self, entity_id, state, attr, *args):
+        self.written.append((entity_id, state, dict(attr)))
+
+
+def _real_ha_entity(module_name, class_name, *, options=None, entity_id=None):
+    """Build a production entity under real homeassistant (no platform)."""
+    if str(_REPO_ROOT) not in sys.path:
+        sys.path.insert(0, str(_REPO_ROOT))
+    module = importlib.import_module(f"custom_components.nvidia_shield.{module_name}")
+    states = _RecordingStates()
+    hass = SimpleNamespace(
+        loop_thread_id=threading.get_ident(),
+        states=states,
+        data={},
+        config=SimpleNamespace(components=set()),
+    )
+    entry = SimpleNamespace(
+        entry_id="e1", data={}, options=dict(options or {}), title="Shield"
+    )
+    entity = getattr(module, class_name)(hass, entry)
+    entity.entity_id = entity_id
+    # HA's real translation-key paths (``unit_of_measurement``, device-class
+    # names) need the platform's translation data; without it a translation-keyed
+    # entity raises "cannot have a translation key ... before being added to the
+    # entity platform". PlatformData is the real container, so the entity is
+    # exercised with the same shape it sees in production.
+    from homeassistant.helpers.entity_platform import PlatformData
+
+    entity.platform_data = PlatformData(
+        hass, domain=module_name, platform_name="nvidia_shield"
+    )
+    # Not added through an EntityComponent: HA would warn once via
+    # _suggest_report_issue (which needs hass.data["integrations"]) — set the
+    # flag it uses to report that once instead of faking a whole platform.
+    entity._no_platform_reported = True
+    return entity, states
+
+
+def _write_ha_state(entity, states):
+    """Run HA's real state write and return what reached the state machine."""
+    entity.async_write_ha_state()
+    assert states.written, f"{type(entity).__name__} wrote no state"
+    return states.written[-1]
+
+
+#: Every concrete entity class in the integration, exercised above against the
+#: REAL state machine. t40: the media player's defect was a state-write crash, so
+#: "the whole tree renders" is the contract under test, not a single entity.
+_REAL_HA_MATRIX = (
+    ("media_player", "NvidiaShieldMediaPlayer", None, "media_player.shield"),
+    ("sensor", "NvidiaShieldCurrentAppSensor", None, "sensor.shield_current_app"),
+    (
+        "sensor",
+        "NvidiaShieldNowPlayingSensor",
+        {"jellyfin_entity": "media_player.jellyfin"},
+        "sensor.shield_now_playing",
+    ),
+    (
+        "sensor",
+        "NvidiaShieldAppsSensor",
+        {"adb_enabled": True},
+        "sensor.shield_installed_apps",
+    ),
+    ("remote", "NvidiaShieldRemoteEntity", None, "remote.shield"),
+    ("button", "NvidiaShieldPairAdbButton", None, "button.shield_pair_adb"),
+)
+
+#: Classified as an entity by the sweep, but an abstract intermediate base HA
+#: never instantiates — its concrete subclasses are in the matrix.
+_INTERMEDIATE_BASES = frozenset({"NvidiaShieldSensorBase"})
+
+
+@pytest.mark.parametrize(
+    ("module_name", "class_name", "options", "entity_id"), _REAL_HA_MATRIX
+)
+def test_entities_calculate_state_under_real_homeassistant(
+    module_name, class_name, options, entity_id
+):
+    """t40 blocker: HA's own state write must not raise for ANY entity.
+
+    ``Entity.async_write_ha_state`` → ``__async_calculate_state`` merges the
+    extra attributes with ``attr |= ...``; the pre-fix media player raised
+    ``TypeError: 'method' object is not iterable`` here, so it could never render.
+    """
+    _require_installed_homeassistant()
+
+    entity, states = _real_ha_entity(
+        module_name, class_name, options=options, entity_id=entity_id
+    )
+
+    written_id, state, attrs = _write_ha_state(entity, states)
+
+    assert written_id == entity_id
+    assert isinstance(state, str)
+    assert isinstance(attrs, dict)
+
+
+def test_the_media_player_extra_attributes_reach_the_state_machine():
+    """The property's payload must survive HA's merge, not merely not raise."""
+    _require_installed_homeassistant()
+
+    entity, states = _real_ha_entity(
+        "media_player", "NvidiaShieldMediaPlayer", entity_id="media_player.shield"
+    )
+
+    _entity_id, _state, attrs = _write_ha_state(entity, states)
+
+    assert {"app_id", "app_name"} <= set(attrs), sorted(attrs)
+
+
+def test_the_real_ha_matrix_covers_every_entity_class_in_the_tree():
+    """A new entity class must join the matrix above, or this test fails.
+
+    The sweep classifies entities from the AST; this keeps the real-HA coverage
+    in step with that classification instead of silently shrinking.
+    """
+    _require_installed_homeassistant()
+
+    classified: set[str] = set()
+    for path in sorted(ha_api_drift.SHIELD_DIR.glob("*.py")):
+        classified |= ha_api_drift.entity_class_names(
+            ast.parse(path.read_text(encoding="utf-8"))
+        )
+    covered = {class_name for _module, class_name, _options, _entity_id in _REAL_HA_MATRIX}
+
+    uncovered = classified - covered - _INTERMEDIATE_BASES
+
+    assert uncovered == set(), (
+        f"entity classes never exercised against real HA: {sorted(uncovered)} — "
+        f"add them to _REAL_HA_MATRIX"
+    )
+
+
+# ------------------------------------------------- t62: dead code and the floor
+#
+# Both defects pinned below shipped while every other gate was green:
+# connection.py carried a duplicated copy of the label-drain body AFTER its
+# `return cached` (valid Python, dead, invisible to this sweep), and the
+# call-argument floor sat at 20 while the counts had moved to ~46, so deleting a
+# flow-display API owner from HA_CALL_OWNERS did not trip it.
+
+#: t62 F2: the shape that shipped — a bare docstring plus the whole drain left
+#: after `return cached`, inside the same method. Line 6 is the dead statement.
+UNREACHABLE_PRE_FIX = (
+    "class Sweep:\n"
+    "    def labels(self, requests):\n"
+    "        cached = {}\n"
+    "        return cached\n"
+    "\n"
+    '        """Start at most one label fetch per watchdog cycle."""\n'
+    "        if not requests:\n"
+    "            return\n"
+    "        requests.discard(min(requests))\n"
+)
+
+
+def test_the_sweep_flags_the_pre_fix_unreachable_body(tmp_path):
+    """t62 F2 red proof: the duplicated drain body after `return cached` is dead."""
+    (tmp_path / "dead_sweep.py").write_text(UNREACHABLE_PRE_FIX, encoding="utf-8")
+
+    findings = ha_api_drift.scan_unreachable(tmp_path)
+
+    assert [(finding.path, finding.kind) for finding in findings] == [
+        ("dead_sweep.py", "unreachable-statement")
+    ], findings
+    assert findings[0].lineno == 6  # the dead docstring, not the return
+
+
+def test_every_terminal_statement_kind_is_flagged(tmp_path):
+    """`return`, `raise`, `continue` and `break` all end a block (t62 F2)."""
+    (tmp_path / "terminals.py").write_text(
+        "def a():\n"
+        "    return 1\n"
+        "    x = 1\n"
+        "\n"
+        "\n"
+        "def b():\n"
+        "    raise SystemExit(1)\n"
+        "    y = 2\n"
+        "\n"
+        "\n"
+        "def c(items):\n"
+        "    for item in items:\n"
+        "        continue\n"
+        "        z = 3\n"
+        "    while True:\n"
+        "        break\n"
+        "        w = 4\n",
+        encoding="utf-8",
+    )
+
+    findings = ha_api_drift.scan_unreachable(tmp_path)
+
+    assert [finding.kind for finding in findings] == ["unreachable-statement"] * 4, findings
+
+
+def test_the_production_tree_has_no_unreachable_statements():
+    """The gate itself: dead code is a finding, so it cannot ship silently."""
+    assert ha_api_drift.scan_unreachable() == []
+
+
+def test_the_unreachable_pass_walks_real_statement_blocks():
+    """The floor proves "no findings" is not a pass that stopped parsing."""
+    report = ha_api_drift.scan()
+
+    assert report.statement_blocks >= ha_api_drift.FLOORS["statement_blocks"]
+
+
+def test_removing_a_flow_display_owner_trips_the_call_argument_floor(monkeypatch):
+    """t62: the floor must notice an API OWNER going away, not just a bad walk."""
+    _require_installed_homeassistant()
+
+    intact = ha_api_drift.scan()
+    assert intact.floor_violations() == []
+
+    reduced = dict(ha_api_drift.HA_CALL_OWNERS)
+    del reduced["async_show_menu"]  # the t57 UNIT 0a owner: 6 checked arguments
+    monkeypatch.setattr(ha_api_drift, "HA_CALL_OWNERS", reduced)
+
+    fewer = ha_api_drift.scan()
+
+    assert fewer.call_args < intact.call_args
+    assert fewer.call_args < ha_api_drift.FLOORS["call_args"], (
+        f"removing async_show_menu left {fewer.call_args} checked arguments, "
+        f"still at or above the floor of {ha_api_drift.FLOORS['call_args']} — "
+        "the flow-display owners are not load-bearing"
+    )
+    assert any("call_args" in line for line in fewer.floor_violations()), (
+        fewer.floor_violations()
+    )

tests/test_harness_scoping.py

@@ -0,0 +1,203 @@
+"""tests/test_harness_scoping.py — the stub harness must not depend on file order (t44).
+
+The failure this pins, as reported: a subset of test files in an order the suite was
+not written for left three ``test_init.py::TestImportStep`` tests failing with
+``ModuleNotFoundError: No module named 'voluptuous'``, while the full suite stayed
+green. Two mechanisms produced it, and both are order-only:
+
+1. ``entity_stublib.install()`` trusted a single sentinel
+   (``homeassistant.components.media_player``). A file whose teardown popped
+   ``voluptuous`` while leaving the sentinel behind turned the next file's
+   ``install()`` into a no-op, so importing ``config_flow`` failed.
+2. A file's teardown restored only the names it had listed. A module it loaded
+   (``nsh.diagnostics``, ``nsh.media_player``) therefore survived into the next
+   file still holding stub objects — an exception class, the redact helper — that
+   had since been replaced, and comparisons against the new objects failed.
+
+The fix keeps the t7 discipline (no stub leaks across files): ``install()`` checks
+the whole face set and rebuilds when anything is missing, and every file's teardown
+uses ``snapshot_modules()``/``restore_modules()``, which drops *everything* the file
+created under the harness namespaces and puts back everything it replaced.
+
+The in-process tests cover both mechanisms directly; the subprocess cases re-run the
+reported orderings end to end, because that is where the failure was visible.
+"""
+
+import subprocess
+import sys
+from pathlib import Path
+
+import entity_stublib
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+TRACKED = ("homeassistant", "voluptuous", "nsh")
+
+
+def _scoped_faces() -> list[str]:
+    """The HA/voluptuous faces every file scopes on (the nsh.* names are modules)."""
+    return [name for name in entity_stublib.ENTITIES_STUB_NAMES if not name.startswith("nsh.")]
+
+
+def _run(*paths: str) -> subprocess.CompletedProcess:
+    return subprocess.run(
+        [
+            sys.executable,
+            "-m",
+            "pytest",
+            *paths,
+            "-q",
+            "--no-header",
+            "-p",
+            "no:cacheprovider",
+        ],
+        cwd=REPO_ROOT,
+        capture_output=True,
+        text=True,
+        timeout=300,
+    )
+
+
+class TestStubFaceGuard:
+    """Mechanism 1: a partially popped face set must be repaired, not trusted."""
+
+    def test_install_provides_every_face_a_file_scopes_on(self):
+        """A face listed for scoping but never installed is a file-order trap."""
+        snapshot = entity_stublib.snapshot_modules()
+        try:
+            entity_stublib.install()
+
+            missing = [name for name in _scoped_faces() if name not in sys.modules]
+
+            assert missing == []
+        finally:
+            entity_stublib.restore_modules(snapshot)
+
+    def test_a_complete_face_set_is_left_alone(self):
+        """The guard must still be an idempotence guard, not a rebuild."""
+        snapshot = entity_stublib.snapshot_modules()
+        try:
+            entity_stublib.install()
+            before = {name: sys.modules[name] for name in _scoped_faces()}
+
+            entity_stublib.install()
+
+            assert {name: sys.modules[name] for name in _scoped_faces()} == before
+        finally:
+            entity_stublib.restore_modules(snapshot)
+
+    def test_a_sentinel_left_behind_does_not_hide_a_missing_face(self):
+        """The reported poisoning: media_player present, voluptuous gone."""
+        snapshot = entity_stublib.snapshot_modules()
+        try:
+            entity_stublib.install()
+            kept = sys.modules["homeassistant.components.media_player"]
+            del sys.modules["voluptuous"]
+
+            entity_stublib.install()
+
+            assert "voluptuous" in sys.modules
+            # the rebuild is wholesale, so the sentinel is a real face again
+            assert sys.modules["homeassistant.components.media_player"] is not None
+            assert kept is not None
+        finally:
+            entity_stublib.restore_modules(snapshot)
+
+
+class TestTeardownLeaks:
+    """Mechanism 2: nothing a file created or replaced may survive its teardown."""
+
+    def test_teardown_removes_the_modules_a_file_loaded(self):
+        snapshot = entity_stublib.snapshot_modules()
+        try:
+            entity_stublib.install()
+            entity_stublib.load_entity_modules()
+            created = [
+                name
+                for name in sys.modules
+                if name.startswith("nsh.") and name not in snapshot
+            ]
+            assert created, "premise: loading the entity modules creates nsh.* modules"
+
+            entity_stublib.restore_modules(snapshot)
+
+            assert [name for name in sys.modules if name.startswith("nsh.")] == [
+                name for name in snapshot if name.startswith("nsh.")
+            ]
+            assert {
+                name: sys.modules.get(name)
+                for name in snapshot
+                if name.split(".", 1)[0] in TRACKED
+            } == snapshot
+        finally:
+            entity_stublib.restore_modules(snapshot)
+
+    def test_a_reloaded_module_holds_the_current_stub_objects(self):
+        """The stale-object failure, exactly: diagnostics vs the redact helper."""
+        snapshot = entity_stublib.snapshot_modules()
+        try:
+            entity_stublib.install()
+            stale_module = entity_stublib.load_entity_modules()["diagnostics"]
+            stale = stale_module.async_redact_data
+            entity_stublib.restore_modules(snapshot)  # ...the file ends
+
+            # ...the next file installs its own faces: a partial pop is how that
+            # actually looked, and it is what forces the rebuild
+            entity_stublib.install()
+            del sys.modules["homeassistant.helpers.redact"]
+            entity_stublib.install()
+            fresh_modules = entity_stublib.load_entity_modules()
+
+            current = sys.modules["homeassistant.helpers.redact"].async_redact_data
+            assert stale is not current, "premise: the rebuild created a new helper"
+            assert fresh_modules["diagnostics"].async_redact_data is current
+            # ...and the stale module is not the one sitting in the import cache
+            assert sys.modules["nsh.diagnostics"] is fresh_modules["diagnostics"]
+        finally:
+            entity_stublib.restore_modules(snapshot)
+
+
+def test_every_file_that_loads_the_harness_scopes_it():
+    """A missing teardown is invisible until the NEXT file runs — so check for it.
+
+    This is the mistake the fix itself invites: a new test file calls
+    load_entity_modules() for convenience and forgets the per-file scope, and the
+    failure surfaces somewhere else entirely (t44 added exactly that file).
+    """
+    #: Files that exercise the harness in a CHILD process: they leave nothing in
+    #: this process's sys.modules, so they need no teardown.
+    child_process_only = {"test_module_coverage.py"}
+    offenders = []
+    for path in sorted((REPO_ROOT / "tests").glob("test_*.py")):
+        if path.name in child_process_only:
+            continue
+        text = path.read_text(encoding="utf-8")
+        loads = "load_entity_modules(" in text or "entity_stublib.install()" in text
+        if loads and "snapshot_modules()" not in text:
+            offenders.append(path.name)
+
+    assert offenders == []
+
+
+@pytest.mark.parametrize(
+    "paths",
+    [
+        # the reported reproduction, cut to the two files that trigger it
+        ("tests/test_standalone_setup.py", "tests/test_init.py::TestImportStep"),
+        # the other failure mode: a file that loads the entity modules before a
+        # file that compares them against freshly installed faces
+        (
+            "tests/test_standalone_setup.py",
+            "tests/test_config_flow_protocol.py",
+            "tests/test_init.py",
+            "tests/test_command_routing.py::TestAdbCommandService",
+            "tests/test_command_routing.py::TestFaithfulHaStubs",
+            "tests/test_command_routing.py::TestServiceRegistryKey",
+        ),
+    ],
+)
+def test_arbitrary_file_orders_pass(paths):
+    """Order is the thing under test, so it is executed, not reasoned about."""
+    result = _run(*paths)
+
+    assert result.returncode == 0, result.stdout[-3000:]

tests/test_init.py

@@ -0,0 +1,294 @@
+"""tests/test_init.py — the t30 G6 structure test file.
+
+Covers the integration-level surfaces HA's testing-structure doc names for
+``test_init.py``: domain async_setup (empty config → no entries), the
+always-on adb_command registration, and the YAML seed parsing units plus
+the import step's duplicate guard and interactive routing.
+"""
+
+import asyncio
+import sys
+from types import SimpleNamespace
+
+import entity_stublib
+import pytest
+
+# Scoped-stub hygiene (mirrors tests/test_config_flow_pairing.py's
+# scoped_stubs pattern): the config-flow files install their own stub faces
+# and pop them per-test; test_init's runs must never leave a hub-stub set
+# behind that a later file's loader would bind against.
+_INIT_STUB_NAMES = (
+    "voluptuous",
+    "homeassistant",
+    "homeassistant.config_entries",
+    "homeassistant.core",
+    "homeassistant.helpers",
+    "homeassistant.helpers.entity_registry",
+    "homeassistant.helpers.device_registry",
+    "homeassistant.helpers.selector",
+    # the G8 lazy import in async_setup registers this platform module —
+    # without popping it the install() guard would skip the rebuild below
+    "homeassistant.components.media_player",
+    "nsh.helpers",
+    "nsh.config_flow",
+    "nsh.init",
+    "nsh.media_player",
+)
+
+
+@pytest.fixture(autouse=True)
+def _integration_module():
+    """HA stubs + the integration __init__ module under nsh.init."""
+    snapshot = entity_stublib.snapshot_modules()
+    entity_stublib.install()
+    if "nsh.init" not in sys.modules:
+        import conftest
+
+        conftest._load_module("nsh.init", conftest._SHIELD_DIR / "__init__.py")
+    yield sys.modules["nsh.init"]
+    entity_stublib.restore_modules(snapshot)
+
+
+class _SeedEntriesStub:
+    """config-entries shape for flow seeding tests: entries + flow records."""
+
+    def __init__(self, entries=()):
+        self._entries = list(entries)
+        self.flows = []  # (domain, context, data) records of flow.async_init
+
+    def async_entries(self):
+        return list(self._entries)
+
+    class _Flows:
+        def __init__(self, holder):
+            self._holder = holder
+
+        async def async_init(self, domain, context=None, data=None):
+            self._holder.flows.append((domain, context, data))
+            return {"type": "form", "items": {}}
+
+    @property
+    def flow(self):
+        return self._Flows(self)
+
+
+class _SeedHass(SimpleNamespace):
+    """Minimal hass for async_setup: config entries, services, tasks."""
+
+    def __init__(self, entries=()):
+        config_entries = _SeedEntriesStub()
+        config_entries.updating_entry_calls = []
+        self._services = {("nvidia_shield", "adb_command"): None}
+        super().__init__(
+            config_entries=config_entries,
+            scheduled_tasks=[],
+            services=self,
+        )
+
+    def async_register(self, domain, service, func, schema=None):
+        self._services[(domain, service)] = (func, schema)
+
+    def has_service(self, domain, service):
+        return (domain, service) in self._services
+
+    def async_create_task(self, coro):
+        task = asyncio.ensure_future(coro)
+        self.scheduled_tasks.append(task)
+        return task
+
+
+class TestDomainSetup:
+    """async_setup: empty config, service registration, no entries."""
+
+    async def test_empty_config_creates_nothing(self, _integration_module):
+        hass = _SeedHass(entries=[])
+
+        result = await _integration_module.async_setup(hass, {})
+
+        assert result is True
+        assert hass.config_entries.flows == []  # nothing seeded
+        assert hass.services.has_service("nvidia_shield", "adb_command")
+
+
+class TestYamlSeedBlocks:
+    """_yaml_seed_blocks: the optional domain key → normalized seeds."""
+
+    def test_block_normalized(self, _integration_module):
+        from nsh.const import CONF_ADB_PORT, CONF_HOST, DEFAULT_ADB_PORT
+
+        # t41: a LEGACY block (adb_host) still seeds — normalized onto CONF_HOST
+        blocks = _integration_module._yaml_seed_blocks(
+            [{"name": "Living", "adb_host": "10.0.0.31"}]
+        )
+
+        assert len(blocks) == 1
+        seed = blocks[0]
+        assert seed["name"] == "Living"
+        assert seed[CONF_HOST] == "10.0.0.31"
+        assert seed[CONF_ADB_PORT] == DEFAULT_ADB_PORT
+        assert seed["adb_enabled"] is True
+        assert "unique_id" not in seed  # optional key only
+
+    def test_the_current_host_key_seeds_too(self, _integration_module):
+        from nsh.const import CONF_HOST
+
+        seed = _integration_module._yaml_seed_blocks(
+            [{"name": "Desk", CONF_HOST: "shield.local"}]
+        )[0]
+
+        assert seed[CONF_HOST] == "shield.local"
+        assert seed["adb_enabled"] is True  # an address names the Shield
+
+    def test_single_block_and_protocol_hint(self, _integration_module):
+        blocks = _integration_module._yaml_seed_blocks(
+            {"name": "Desk", "protocol_host": "shield.local", "adb_port": 5000}
+        )
+
+        assert len(blocks) == 1
+        # a legacy protocol-only block still seeds, with ADB left OFF (t32 F4)
+        assert blocks[0]["host"] == "shield.local"
+        assert blocks[0]["adb_port"] == 5000
+        assert blocks[0]["adb_enabled"] is False
+
+    def test_list_and_single_block_shapes(self, _integration_module):
+        single = _integration_module._yaml_seed_blocks({"name": "A"})
+        listed = _integration_module._yaml_seed_blocks([{"name": "B"}, {"name": "C"}])
+
+        assert len(single) == 1 and len(listed) == 2
+
+
+class TestSeeding:
+    """async_setup seeds SOURCE_IMPORT flows for shaped blocks only."""
+
+    async def test_shaped_block_seeds_a_flow(self, _integration_module):
+        hass = _SeedHass(entries=[])
+
+        await _integration_module.async_setup(
+            hass, {"nvidia_shield": [{"name": "R", "adb_host": "10.0.0.5"}]}
+        )
+        if hass.scheduled_tasks:
+            await asyncio.gather(*hass.scheduled_tasks, return_exceptions=True)
+
+        assert len(hass.config_entries.flows) == 1
+        domain, context, data = hass.config_entries.flows[0]
+        assert domain == "nvidia_shield"
+        assert context["source"] == "import"
+        assert data["host"] == "10.0.0.5"  # t41: one address field
+
+
+class TestSeedingCurrentKey:
+    """The t41 `host` key seeds exactly like the legacy one."""
+
+    async def test_host_key_seeds_a_flow(self, _integration_module):
+        hass = _SeedHass(entries=[])
+
+        await _integration_module.async_setup(
+            hass, {"nvidia_shield": [{"name": "H", "host": "10.0.0.7"}]}
+        )
+        if hass.scheduled_tasks:
+            await asyncio.gather(*hass.scheduled_tasks, return_exceptions=True)
+
+        assert len(hass.config_entries.flows) == 1
+        assert hass.config_entries.flows[0][2]["host"] == "10.0.0.7"
+
+    async def test_hostless_block_never_seeds(self, _integration_module):
+        hass = _SeedHass(entries=[])
+
+        result = await _integration_module.async_setup(
+            hass, {"nvidia_shield": [{"name": "X"}]}
+        )
+
+        assert result is True
+        assert hass.config_entries.flows == []  # hostless → warning only
+
+
+class TestImportStep:
+    """async_step_import: duplicate guards + interactive routing."""
+
+    def _flow(self, entries):
+        # the flow module loads under these stubs and the base plumbing is
+        # injected locally — importing test_standalone_setup here would
+        # leak its local stub set into later test files.
+        from nsh.config_flow import NvidiaShieldConfigFlow
+
+        hass = SimpleNamespace(
+            config_entries=_SeedEntriesStub(entries),
+        )
+        hass.config_entries.flows = []
+        flow = NvidiaShieldConfigFlow()
+        flow.hass = hass
+        flow.context = {}
+        # ConfigFlow base attrs the stub class doesn't implement (t7 shape):
+        flow.async_set_unique_id = None  # set below
+        flow._collected_unique_id = None
+
+        async def set_unique_id(uid):
+            flow._collected_unique_id = uid
+
+        flow.async_set_unique_id = set_unique_id
+
+        def abort_if_unique_id_configured(*args, **kwargs):
+            for entry in hass.config_entries.async_entries():
+                if entry.unique_id == flow._collected_unique_id:
+                    from nsh.config_flow import AbortIfConfiguredError
+
+                    raise AbortIfConfiguredError(f"{entry.unique_id}")
+
+        flow._abort_if_unique_id_configured = abort_if_unique_id_configured
+        # the base ConfigFlow shows forms through the stub plumbing (matching
+        # how the standalone flow tests install it):
+        flow.async_show_form = lambda **kwargs: {
+            "type": "form",
+            **kwargs,
+        }
+        flow.async_create_entry = lambda **kwargs: {
+            "type": "create_entry",
+            **kwargs,
+        }
+        flow.async_abort = lambda **kwargs: {"type": "abort", **kwargs}
+        flow._async_current_entries = lambda: list(
+            hass.config_entries.async_entries()
+        )
+        return flow
+
+    async def test_ui_configured_host_never_re_seeded(self):
+        from nsh.const import CONF_HOST
+
+        existing = SimpleNamespace(
+            entry_id="ui1",
+            unique_id=None,
+            options={CONF_HOST: "10.0.0.31"},
+        )
+        # options live on the entry (conf zeroconf guard reads them)
+        flow = self._flow([existing])
+
+        result = await flow.async_step_import(
+            {"name": "A", "adb_host": "10.0.0.31"}
+        )
+
+        assert result == {"type": "abort", "reason": "already_configured"}
+
+    async def test_virtual_unique_id_blocks_reseed(self):
+        flow_holder = SimpleNamespace(
+            entry_id="seed1",
+            unique_id="yaml:Living:10.0.0.31",
+            options={},
+        )
+        flow = self._flow([flow_holder])
+
+        result = await flow.async_step_import(
+            {"name": "Living", "adb_host": "10.0.0.31"}
+        )
+
+        assert result == {"type": "abort", "reason": "already_configured"}
+
+    async def test_fresh_block_routes_into_the_user_flow(self):
+        flow = self._flow([])
+
+        result = await flow.async_step_import(
+            {"name": "Fresh", "adb_host": "10.0.0.99"}
+        )
+
+        # interactive pairing — the pre-filled user step, one visit
+        assert result["type"] == "form"
+        assert result["step_id"] == "user"

tests/test_installed_apps.py

@@ -0,0 +1,669 @@
+"""t57: installed-app discovery — parsers, the bounded sweep, and the surfaces.
+
+No real Shield was available, so the command OUTPUT here is the part that is
+fixture-based, not observed: the shapes are the documented Android ones
+(``pm list packages`` prints ``package:<id>``; ``resolve-activity --brief``
+prints the verbose intent then ``package/activity``; ``pm dump`` prints
+``application-label: '...'``). The parsers are deliberately tolerant because
+that is the property that matters when a real device's output differs in
+whitespace or ordering, and every tolerance is pinned below.
+"""
+
+from __future__ import annotations
+
+import asyncio
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
+import entity_stublib  # noqa: E402
+import pytest  # noqa: E402
+from entity_stublib import load_entity_modules  # noqa: E402
+
+
+@pytest.fixture(autouse=True)
+def scoped_entity_stubs():
+    """Container for the HA stubs + loaded entity modules (t7 discipline).
+
+    Without the teardown the stubs this file installs leak into whichever test
+    file runs next — tests/test_harness_scoping.py exists because that mistake
+    is invisible until an unrelated file fails.
+    """
+    snapshot = entity_stublib.snapshot_modules()
+    entity_stublib.install()
+    yield load_entity_modules()
+    entity_stublib.restore_modules(snapshot)
+
+from nsh.connection import ShieldConnectionManager  # noqa: E402
+from nsh.const import (  # noqa: E402
+    APP_ICON_FALLBACKS,
+    APP_LIST_TTL,
+    CONF_APP_NAME_MAP,
+)
+from nsh.ha_adb_common import (  # noqa: E402
+    icon_for_package,
+    installed_packages,
+    is_launchable,
+    parse_active_launcher,
+    parse_package_list,
+)
+
+# ── realistic device output ────────────────────────────────────────────────
+
+#: `pm list packages -3` on a Shield with a normal app set. Wrapped the way a
+#: real adb shell answers (a bare list, no header).
+USER_PACKAGES = (
+    "package:ar.tvplayer.tv\n"
+    "package:com.github.damontecres.wholphin\n"
+    "package:com.netflix.ninja\n"
+    "package:com.google.android.youtube.tv\n"
+    "package:org.xbmc.kodi\n"
+    "package:com.plexapp.android\n"
+    "package:com.spotify.tv.android\n"
+    "package:com.example.handmade\n"
+)
+
+#: `cmd package resolve-activity --brief -c android.intent.category.HOME` —
+#: the verbose header then the component, exactly as Android prints it.
+LAUNCHER_RESOLVED = (
+    "priority=0 preferredOrder=0 match=0x108000 specificIndex=-1 isDefault=false\n"
+    "com.google.android.tvlauncher/com.google.android.apps.tv.launcherx.MainActivity\n"
+)
+
+#: `pm dump` for an app whose manifest and locale variants both exist. The
+#: parser takes the first default-locale label and ignores the localized ones.
+DUMP_TIVIMATE = (
+    "Package [ar.tvplayer.tv] (7f1a2b3c):\n"
+    "  application-label:'TiviMate'\n"
+    "  application-label-de:'TiviMate DE'\n"
+    "  application-label-fr:'TiviMate FR'\n"
+    "  versionName=4.7.0\n"
+)
+
+#: A dump that RAN and carries no label at all — several system/OEM packages
+#: look like this. It is a definitive negative, not a failed fetch.
+DUMP_LABEL_LESS = (
+    "Package [com.example.handmade] (aa11bb22):\n"
+    "  versionName=1.0\n"
+    "  codePath=/data/app/com.example.handmade\n"
+)
+
+
+class _DiscoveryPoller:
+    """A poller whose shell answers the discovery commands from fixtures."""
+
+    def __init__(self, *, packages=USER_PACKAGES, launcher=LAUNCHER_RESOLVED,
+                 dumps=None, failure=False):
+        self.connected = True
+        self.connected_override = True
+        self.packages = packages
+        self.launcher = launcher
+        self.dumps = dict(dumps or {})
+        self.failure = failure
+        self.shell_calls: list[str] = []
+
+    @property
+    def is_connected(self):
+        return self.connected
+
+    async def shell(self, cmd: str):
+        self.shell_calls.append(cmd)
+        if self.failure:
+            return None
+        if "pm list packages" in cmd:
+            return self.packages
+        if "resolve-activity" in cmd:
+            return self.launcher
+        if "pm dump" in cmd:
+            import shlex
+
+            for package, dump in self.dumps.items():
+                if shlex.quote(package) in cmd or package in cmd:
+                    return dump
+            return "__NSH_EXIT:0\n"  # ran, no label
+        return None
+
+
+def _manager(poller):
+    return ShieldConnectionManager(hass=None, entry=None, poller=poller)
+
+
+class TestPackageListParsing:
+    """`pm list packages -3`."""
+
+    def test_real_output_parses_one_package_per_line(self):
+        assert parse_package_list(USER_PACKAGES) == [
+            "ar.tvplayer.tv",
+            "com.github.damontecres.wholphin",
+            "com.netflix.ninja",
+            "com.google.android.youtube.tv",
+            "org.xbmc.kodi",
+            "com.plexapp.android",
+            "com.spotify.tv.android",
+            "com.example.handmade",
+        ]
+
+    def test_noise_and_duplicates_are_tolerated(self):
+        noisy = (
+            "adb: connecting to 10.0.0.9:5555\n"
+            "package:com.a\n"
+            "\n"
+            "package:com.a\n"
+            "package:com.b   \n"
+            "some warning line\n"
+        )
+        assert parse_package_list(noisy) == ["com.a", "com.b"]
+
+    def test_empty_and_none_are_an_empty_list(self):
+        assert parse_package_list(None) == []
+        assert parse_package_list("") == []
+
+    def test_a_package_id_is_sanity_checked(self):
+        assert is_launchable("com.example.app")
+        assert is_launchable("ar.tvplayer.tv")
+        assert not is_launchable("")
+        assert not is_launchable("notapackage")
+        assert not is_launchable("com..b")
+
+
+class TestLauncherParsing:
+    """`cmd package resolve-activity --brief -c ...HOME`."""
+
+    def test_the_component_after_the_verbose_header_is_the_launcher(self):
+        assert parse_active_launcher(LAUNCHER_RESOLVED) == "com.google.android.tvlauncher"
+
+    def test_activity_only_output_still_parses(self):
+        assert parse_active_launcher("com.google.android.tvlauncher/.MainActivity") == (
+            "com.google.android.tvlauncher"
+        )
+
+    def test_nothing_resolved_is_none(self):
+        assert parse_active_launcher("No activity found") is None
+        assert parse_active_launcher(None) is None
+
+    def test_the_tv_settings_entry_point_is_not_a_launcher(self):
+        # a HOME resolution can land on the settings app's entry point; that is
+        # not the app a user opens
+        output = "com.android.tv.settings/.MainActivity"
+        assert parse_active_launcher(output) is None
+
+
+class TestInstalledPackagesMerge:
+    """User apps plus the active launcher, de-duplicated."""
+
+    def test_launcher_is_added_last(self):
+        packages = installed_packages(USER_PACKAGES, LAUNCHER_RESOLVED)
+        assert packages[-1] == "com.google.android.tvlauncher"
+        assert packages[0] == "ar.tvplayer.tv"
+
+    def test_a_third_party_launcher_is_not_duplicated(self):
+        user = "package:com.example.launcher\npackage:com.a\n"
+        launcher = "com.example.launcher/.MainActivity"
+        assert installed_packages(user, launcher) == ["com.example.launcher", "com.a"]
+
+    def test_no_launcher_still_yields_the_user_apps(self):
+        assert installed_packages(USER_PACKAGES, None) == parse_package_list(USER_PACKAGES)
+
+
+class TestIconHeuristic:
+    """Icons are a curated map plus a generic fallback — and always a string."""
+
+    def test_a_known_package_gets_its_curated_icon(self):
+        assert icon_for_package("com.netflix.ninja", APP_ICON_FALLBACKS) == "mdi:netflix"
+
+    def test_an_unknown_package_gets_the_generic_icon(self):
+        assert icon_for_package("com.example.handmade", APP_ICON_FALLBACKS) == "mdi:television"
+
+    def test_the_result_is_always_a_string(self):
+        for package in ("", None, "com.example.handmade", "ar.tvplayer.tv"):
+            icon = icon_for_package(package, APP_ICON_FALLBACKS)
+            assert isinstance(icon, str) and icon
+
+
+class TestDiscoverySweep:
+    """The bounded sweep on the connection manager."""
+
+    async def test_a_sweep_lists_labels_and_icons_every_app(self):
+        poller = _DiscoveryPoller(dumps={
+            "ar.tvplayer.tv": DUMP_TIVIMATE,
+            "com.example.handmade": DUMP_LABEL_LESS,
+        })
+        manager = _manager(poller)
+
+        rows = await manager.async_refresh_installed_apps()
+
+        packages = [row["package"] for row in rows]
+        assert "ar.tvplayer.tv" in packages
+        assert "com.netflix.ninja" in packages
+        assert "com.google.android.tvlauncher" in packages  # the launcher is there
+        by_pkg = {row["package"]: row for row in rows}
+        assert by_pkg["ar.tvplayer.tv"]["name"] == "TiviMate"  # from the dump
+        assert by_pkg["ar.tvplayer.tv"]["icon"] == "mdi:television-classic"
+        # a label-less app keeps its discovered name (the package id) and is
+        # still a row — it must not vanish from the table
+        assert by_pkg["com.example.handmade"]["name"] == "com.example.handmade"
+        # and every row's name/icon is a string
+        for row in rows:
+            assert isinstance(row["name"], str) and row["name"]
+            assert isinstance(row["icon"], str) and row["icon"]
+
+    async def test_the_live_bug_the_discovered_list_is_a_superset(self):
+        """The complaint in one assertion: every app the user has, plus the
+        curated four, is offered — not just the curated four."""
+        from nsh.const import DEFAULT_APP_DIRECTORY
+
+        poller = _DiscoveryPoller(dumps={"ar.tvplayer.tv": DUMP_TIVIMATE})
+        manager = _manager(poller)
+
+        rows = await manager.async_refresh_installed_apps()
+        packages = {row["package"] for row in rows}
+
+        # the curated list the integration used to fall back to
+        assert set(DEFAULT_APP_DIRECTORY) <= packages
+        # ...and the apps it missed, which is what the user reported
+        for package in (
+            "ar.tvplayer.tv",                          # TiviMate
+            "com.github.damontecres.wholphin",         # Wholphin
+            "com.netflix.ninja",                       # Netflix
+            "com.google.android.youtube.tv",           # YouTube
+            "org.xbmc.kodi",
+            "com.plexapp.android",
+            "com.spotify.tv.android",
+            "com.example.handmade",
+        ):
+            assert package in packages, package
+        assert "com.google.android.tvlauncher" in packages  # + the launcher
+        # a system app the device never lists as -3 is NOT invented here
+        assert "com.android.systemui" not in packages
+
+    async def test_the_sweep_issues_the_documented_commands(self):
+        poller = _DiscoveryPoller(dumps={"ar.tvplayer.tv": DUMP_TIVIMATE})
+        manager = _manager(poller)
+
+        await manager.async_refresh_installed_apps()
+
+        assert "pm list packages -3" in poller.shell_calls
+        assert any("resolve-activity" in cmd for cmd in poller.shell_calls)
+        assert "android.intent.category.HOME" in " ".join(poller.shell_calls)
+
+    async def test_labels_are_fetched_in_a_bounded_burst(self):
+        """A full sweep must not serialise one shell at a time, and must not flood."""
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+        concurrent = {"now": 0, "peak": 0, "total": 0}
+
+        real_shell = poller.shell
+
+        async def _counted(cmd):
+            if "pm dump" in cmd:
+                concurrent["now"] += 1
+                concurrent["total"] += 1
+                concurrent["peak"] = max(concurrent["peak"], concurrent["now"])
+                try:
+                    await asyncio.sleep(0)  # yield so overlap is observable
+                    return await real_shell(cmd)
+                finally:
+                    concurrent["now"] -= 1
+            return await real_shell(cmd)
+
+        poller.shell = _counted
+        rows = await manager.async_refresh_installed_apps()
+
+        assert len(rows) >= 5
+        assert concurrent["total"] >= 5
+        # bounded: never more than the configured workers in flight at once
+        from nsh.const import APP_SWEEP_CONCURRENCY
+
+        assert concurrent["peak"] <= APP_SWEEP_CONCURRENCY
+        assert concurrent["peak"] > 1  # ...and genuinely concurrent, not serial
+
+    async def test_a_cached_table_is_reused_and_costs_no_shell(self):
+        poller = _DiscoveryPoller(dumps={"ar.tvplayer.tv": DUMP_TIVIMATE})
+        manager = _manager(poller)
+
+        first = await manager.async_refresh_installed_apps()
+        calls = len(poller.shell_calls)
+        second = await manager.async_refresh_installed_apps()
+
+        assert second == first
+        assert len(poller.shell_calls) == calls  # cached: zero new shells
+        assert manager.installed_apps_stale is False
+
+    async def test_force_refreshes_even_a_fresh_table(self):
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+
+        await manager.async_refresh_installed_apps()
+        calls = len(poller.shell_calls)
+        await manager.async_refresh_installed_apps(force=True)
+
+        assert len(poller.shell_calls) > calls
+
+    async def test_a_stale_table_is_not_served(self):
+        now = [1000.0]
+        poller = _DiscoveryPoller()
+        manager = ShieldConnectionManager(
+            hass=None, entry=None, poller=poller, clock=lambda: now[0]
+        )
+        await manager.async_refresh_installed_apps()
+        assert manager.installed_apps()
+
+        now[0] += APP_LIST_TTL + 1
+        assert manager.installed_apps() == []
+        assert manager.installed_apps_stale is True
+
+    async def test_the_watchdog_never_sweeps(self):
+        """Acceptance: nothing discovery-related runs on a state poll.
+
+        The watchdog cycle is what a poll drives. It may drain ONE label fetch
+        (the t24/t55 rule for the live entity path), but it must never list
+        packages or fan out into a discovery burst.
+        """
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+
+        await manager._watchdog_cycle(5.0)
+        await asyncio.sleep(0)
+
+        assert not [c for c in poller.shell_calls if "pm list packages" in c]
+        assert not [c for c in poller.shell_calls if "resolve-activity" in c]
+        assert manager.installed_apps() == []
+
+    async def test_concurrent_callers_share_one_sweep(self):
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+        list_calls = {"n": 0}
+        real_shell = poller.shell
+
+        async def _counted(cmd):
+            if "pm list packages" in cmd:
+                list_calls["n"] += 1
+                await asyncio.sleep(0.01)
+            return await real_shell(cmd)
+
+        poller.shell = _counted
+        results = await asyncio.gather(
+            manager.async_refresh_installed_apps(force=True),
+            manager.async_refresh_installed_apps(force=True),
+            manager.async_refresh_installed_apps(force=True),
+        )
+
+        assert list_calls["n"] == 1  # one sweep, shared
+        assert results[0] == results[1] == results[2]
+
+
+class TestDiscoveryDegradesGracefully:
+    """ADB off, down or mute: an empty list and a note, never a crash or a loop.
+
+    t62 F1: "could not ask" and "asked, nothing there" are different answers.
+    Only the second one is cached; the first is retried.
+    """
+
+    async def test_no_poller_is_an_empty_list(self):
+        manager = ShieldConnectionManager(hass=None, entry=None, poller=None)
+
+        rows = await manager.async_refresh_installed_apps()
+
+        assert rows == []
+        assert manager.installed_apps() == []
+
+    async def test_a_disconnected_poller_is_an_empty_list(self):
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+        manager._poller = poller
+        poller.connected = False
+        # the manager's own connected flag is what the sweep reads
+        assert manager.connected is False
+
+        rows = await manager.async_refresh_installed_apps()
+
+        assert rows == []
+        assert poller.shell_calls == []  # nothing was even attempted
+
+    async def test_a_mute_transport_is_spaced_but_not_stamped(self):
+        """t62 F1: a failed sweep is retried — but not once per state poll."""
+        now = [1000.0]
+        poller = _DiscoveryPoller(failure=True)
+        manager = ShieldConnectionManager(
+            hass=None, entry=None, poller=poller, clock=lambda: now[0]
+        )
+
+        rows = await manager.async_refresh_installed_apps()
+
+        assert rows == []
+        assert poller.shell_calls  # it tried
+        assert manager.installed_apps_status == "unknown"  # NOT an empty answer
+        # the next poll inside the window does NOT re-shell (no hammering)..
+        calls = len(poller.shell_calls)
+        assert await manager.async_refresh_installed_apps() == []
+        assert len(poller.shell_calls) == calls
+        # ..but nothing was stamped as an answer, so once the window passes the
+        # sweep runs again. Pre-fix it waited out APP_LIST_TTL (6 h) instead.
+        now[0] += manager.APP_SWEEP_RETRY_SECONDS + 1
+        assert await manager.async_refresh_installed_apps() == []
+        assert len(poller.shell_calls) > calls
+
+    async def test_a_sweep_that_could_not_run_is_not_a_fresh_answer(self):
+        """t62 F1 (red proof): startup with ADB down must not BE the answer.
+
+        The entity's one startup sweep runs with the poller down. Once ADB comes
+        back, ``homeassistant.update_entity`` (``sensor.async_update``) must
+        recover the table. Pre-fix the startup sweep stamped an empty answer, so
+        this call issued ZERO shells and kept reporting 0/"pending" for
+        APP_LIST_TTL = 6 h.
+        """
+        poller = _DiscoveryPoller(dumps={"ar.tvplayer.tv": DUMP_TIVIMATE})
+        poller.connected = False
+        manager = _manager(poller)
+
+        assert await manager.async_refresh_installed_apps() == []  # the startup
+        assert poller.shell_calls == []  # it was not even attempted
+        assert manager.installed_apps_stale is True  # ...so it is not an answer
+        assert manager.installed_apps_status == "unknown"
+
+        poller.connected = True  # ADB is back
+        rows = await manager.async_refresh_installed_apps()
+
+        assert rows, "update_entity must recover the table once ADB returns"
+        assert "pm list packages -3" in poller.shell_calls
+        assert manager.installed_apps_status == "ok"
+
+    async def test_a_genuinely_empty_answer_is_ok(self):
+        """t62 F1: 'ok' must be reachable for a really empty device."""
+        poller = _DiscoveryPoller(packages="", launcher="")
+        manager = _manager(poller)
+
+        assert await manager.async_refresh_installed_apps() == []
+
+        assert poller.shell_calls  # the commands RAN and answered
+        assert manager.installed_apps_stale is False  # stamped: a real answer
+        assert manager.installed_apps_status == "ok"
+
+    async def test_the_accessor_never_shells(self):
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+
+        assert manager.installed_apps() == []
+        assert poller.shell_calls == []
+
+
+class TestDiscoveryUsesTheCachedLabelPath:
+    """Acceptance: labels come from the pm-dump path AND its 24 h cache."""
+
+    async def test_a_second_sweep_reuses_the_cached_labels(self):
+        """The 24 h cache is what makes a re-sweep cheap — negatives included.
+
+        A label-less package is a DEFINITIVE answer, so the second sweep must
+        not re-dump it. The check goes through the cache directly, because the
+        display accessor (`app_label`) cannot tell "no label" from "not asked".
+        """
+        poller = _DiscoveryPoller(dumps={"ar.tvplayer.tv": DUMP_TIVIMATE})
+        manager = _manager(poller)
+
+        await manager.async_refresh_installed_apps()
+        dumps = [c for c in poller.shell_calls if "pm dump" in c]
+        assert dumps  # the first sweep labelled everything it could
+        assert len(dumps) >= 5  # ...and it did dump for the unlabelled ones
+
+        # the cache now answers for EVERY package, so a forced re-sweep lists
+        # again but dumps nothing at all (the 24 h label cache, not the table TTL)
+        manager._installed_apps = None  # forget the table, keep the labels
+        rows = await manager.async_refresh_installed_apps(force=True)
+
+        assert [c for c in poller.shell_calls if "pm dump" in c] == dumps
+        assert manager.app_label("ar.tvplayer.tv") == "TiviMate"
+        by_pkg = {row["package"]: row for row in rows}
+        assert by_pkg["ar.tvplayer.tv"]["name"] == "TiviMate"
+        assert by_pkg["org.xbmc.kodi"]["name"] == "org.xbmc.kodi"
+
+    async def test_a_failed_label_is_retried_by_the_next_sweep(self):
+        """UNIT 0 semantics at scale: a transient failure is not permanent."""
+        poller = _DiscoveryPoller(dumps={"org.xbmc.kodi": "application-label: 'Kodi'"})
+        manager = _manager(poller)
+        real_shell = poller.shell
+        state = {"fail_kodi": True}
+
+        async def _flaky(cmd):
+            if state["fail_kodi"] and "pm dump" in cmd and "kodi" in cmd:
+                poller.shell_calls.append(cmd)
+                return None  # the transport delivered nothing
+            return await real_shell(cmd)
+
+        poller.shell = _flaky
+        rows = await manager.async_refresh_installed_apps()
+        by_pkg = {row["package"]: row for row in rows}
+        assert by_pkg["org.xbmc.kodi"]["name"] == "org.xbmc.kodi"  # fell back
+        assert manager.app_label("org.xbmc.kodi") is None  # NOT cached
+
+        state["fail_kodi"] = False
+        manager._installed_apps = None
+        rows2 = await manager.async_refresh_installed_apps()
+        by_pkg2 = {row["package"]: row for row in rows2}
+        assert by_pkg2["org.xbmc.kodi"]["name"] == "Kodi"  # recovered
+
+
+class TestInstalledAppsSensor:
+    """The dashboard surface: state = count, attribute = the table."""
+
+    def _sensor(self, manager, options=None):
+        sensor_module = load_entity_modules()["sensor"]
+        entry = type("E", (), {})()
+        entry.entry_id = "e1"
+        entry.options = dict(options or {})
+        entry.runtime_data = manager
+        entry.title = "mdarcy"
+        sensor = sensor_module.NvidiaShieldAppsSensor.__new__(
+            sensor_module.NvidiaShieldAppsSensor
+        )
+        sensor.hass = entity_stublib.FakeHass()
+        sensor._entry = entry
+        return sensor
+
+    async def test_state_is_the_count_and_the_attribute_is_the_table(self):
+        poller = _DiscoveryPoller(dumps={"ar.tvplayer.tv": DUMP_TIVIMATE})
+        manager = _manager(poller)
+        await manager.async_refresh_installed_apps()
+        sensor = self._sensor(manager)
+
+        assert sensor.native_value == len(manager.installed_apps())
+        attrs = sensor.extra_state_attributes
+        assert attrs["discovery"] == "ok"
+        assert any(
+            app["package"] == "ar.tvplayer.tv" and app["name"] == "TiviMate"
+            for app in attrs["installed_apps"]
+        )
+
+    def test_no_discovery_yet_is_an_empty_table_with_a_reason(self):
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+        sensor = self._sensor(manager)
+
+        assert sensor.native_value == 0
+        attrs = sensor.extra_state_attributes
+        assert attrs["installed_apps"] == []
+        assert attrs["discovery"] in ("pending", "not_connected", "adb_disabled")
+
+    async def test_an_empty_discovery_is_ok_not_pending(self):
+        """t62 F1: a sweep that RAN and found nothing is the answer 'ok'."""
+        poller = _DiscoveryPoller(packages="", launcher="")
+        manager = _manager(poller)
+        await manager.async_refresh_installed_apps()
+        sensor = self._sensor(manager, {"adb_enabled": True})
+
+        assert sensor.native_value == 0
+        assert sensor.extra_state_attributes == {
+            "installed_apps": [],
+            "discovery": "ok",
+        }
+
+    async def test_a_sweep_that_could_not_run_is_unknown_not_pending(self):
+        """t62 F1: 'pending' used to cover both "running" and "could not run"."""
+        poller = _DiscoveryPoller(failure=True)
+        manager = _manager(poller)
+        await manager.async_refresh_installed_apps()
+        sensor = self._sensor(manager, {"adb_enabled": True})
+
+        assert sensor.extra_state_attributes == {
+            "installed_apps": [],
+            "discovery": "unknown",
+        }
+
+    def test_adb_disabled_is_reported_as_such(self):
+        poller = _DiscoveryPoller()
+        manager = _manager(poller)
+        poller.connected = False
+        sensor = self._sensor(manager, {"adb_enabled": False})
+
+        attrs = sensor.extra_state_attributes
+
+        assert attrs == {"installed_apps": [], "discovery": "adb_disabled"}
+
+    async def test_the_sensor_refresh_is_a_no_op_without_a_manager(self):
+        sensor = self._sensor(None)
+        sensor._entry.runtime_data = None
+
+        assert sensor.native_value == 0
+        assert sensor.extra_state_attributes["installed_apps"] == []
+        await sensor.async_update()  # must not raise
+
+
+class TestDiscoveredAppsStillRespectTheUsersMap:
+    """The user's own map is an OVERRIDE, and discovery fills the rest (t57)."""
+
+    async def test_a_mapped_package_keeps_the_users_name_not_the_device_label(self):
+        poller = _DiscoveryPoller(dumps={"ar.tvplayer.tv": DUMP_TIVIMATE})
+        manager = _manager(poller)
+        await manager.async_refresh_installed_apps()
+
+        # the shared resolver is what the sensor and the player use; discovery
+        # only supplies the device label underneath the user's map
+        from nsh.media_player import resolve_app_name
+
+        options = {CONF_APP_NAME_MAP: {"ar.tvplayer.tv": "Telly"}}
+        assert (
+            resolve_app_name(
+                "ar.tvplayer.tv", options[CONF_APP_NAME_MAP], manager.app_label
+            )
+            == "Telly"
+        )
+        # ...and the device label is what discovery put UNDER it, so dropping
+        # the map entry still resolves to a real name rather than a package id
+        assert (
+            resolve_app_name("ar.tvplayer.tv", {}, manager.app_label) == "TiviMate"
+        )
+
+
+def test_the_label_exit_marker_never_becomes_a_name():
+    """The marker is a transport detail; it must not leak into a label."""
+    from nsh.ha_adb_common import parse_application_label
+
+    assert parse_application_label("__NSH_EXIT:0\n") is None
+    assert parse_application_label(DUMP_TIVIMATE + "__NSH_EXIT:0\n") == "TiviMate"
+
+
+def test_importing_the_discovery_module_needs_no_home_assistant():
+    """The parsers live in ha_adb_common and stay importable without HA."""
+    import nsh.ha_adb_common.installed_apps as module
+
+    assert module.__doc__ and "pm list packages -3" in module.__doc__
+    assert not [n for n in dir(module) if n.startswith("hass")]

tests/test_intent.py

@@ -0,0 +1,32 @@
+"""Tests for the PlaybackIntent dataclass (optimistic state tracking)."""
+
+from ha_adb_common.intent import PlaybackIntent
+
+
+def test_create_captures_fields():
+    intent = PlaybackIntent.create(
+        target_state="paused", command="media_pause", prior_state="playing"
+    )
+    assert intent.target_state == "paused"
+    assert intent.command == "media_pause"
+    assert intent.prior_state == "playing"
+    assert intent.retry_count == 0
+    assert intent.created_at > 0
+
+
+def test_debug_dict_shape():
+    intent = PlaybackIntent.create(target_state="playing", command="media_play")
+    debug = intent.to_debug_dict()
+    assert debug["target"] == "playing"
+    assert debug["command"] == "media_play"
+    assert debug["retries"] == 0
+    assert "age_s" in debug
+
+
+def test_age_increases():
+    import time
+
+    intent = PlaybackIntent.create(target_state="playing", command="media_play")
+    before = intent.age_seconds
+    time.sleep(0.01)
+    assert intent.age_seconds >= before

tests/test_media_session.py

@@ -0,0 +1,347 @@
+"""Parser tests driven by real Shield firmware captures (Android 11, RQ1A.210105.003).
+
+Fixtures live in tests/fixtures — see docs/RESEARCH_SHIELD.md for how each
+capture was produced and which expectations it pins.
+"""
+
+from pathlib import Path
+
+from ha_adb_common.media_session import (
+    MediaSessionInfo,
+    parse_all_media_sessions,
+    parse_audio_playback,
+    parse_media_session,
+)
+
+FIXTURES = Path(__file__).parent / "fixtures"
+
+
+def _fixture(name: str) -> str:
+    return (FIXTURES / name).read_text(encoding="utf-8")
+
+
+class TestTiviMateHasNoSession:
+    """TiviMate (ar.tvplayer.tv) registers no MediaSession on this firmware."""
+
+    def test_no_sessions_parsed(self):
+        assert parse_all_media_sessions(_fixture("media_session_tivimate.txt")) == []
+
+    def test_session_query_returns_none(self):
+        dump = _fixture("media_session_tivimate.txt")
+        assert parse_media_session(dump, "ar.tvplayer.tv") is None
+
+    def test_inactive_stale_session_is_not_surfaced(self):
+        """Netflix registers an inactive, state-less session; the parser must
+        ignore it — an active=false block never appears in the results."""
+        dump = _fixture("media_session_tivimate.txt")
+        assert parse_media_session(dump, "com.netflix.ninja") is None
+
+
+class TestWholphinSession:
+    """Wholphin (com.github.damontecres.wholphin) publishes a proper session."""
+
+    def test_playing_session_parsed(self):
+        sessions = parse_all_media_sessions(_fixture("media_session_wholphin.txt"))
+        assert len(sessions) == 1
+        session = sessions[0]
+        assert session.package == "com.github.damontecres.wholphin"
+        assert session.playing is True
+        assert session.paused is False
+        assert session.title == "Twirlywoos"
+        assert session.artist is None
+
+    def test_foreground_package_is_preferred(self):
+        dump = _fixture("media_session_wholphin.txt")
+        best = parse_media_session(dump, "com.github.damontecres.wholphin")
+        assert best is not None
+        assert best.package == "com.github.damontecres.wholphin"
+        assert best.playing is True
+
+
+class TestPlaybackStatePosition:
+    """PlaybackState carries position (ms), speed, and uptime-ms `updated` (R9)."""
+
+    def test_wholphin_position_fields_parsed(self):
+        sessions = parse_all_media_sessions(_fixture("media_session_wholphin.txt"))
+        assert len(sessions) == 1
+        session = sessions[0]
+        assert session.position == 17237
+        assert session.speed == 1.0
+        assert session.updated == 1408392
+
+    def test_buffered_position_is_not_mistaken_for_position(self):
+        """`buffered position=70070` sits in the same block; only the real
+        `position=17237` may be read."""
+        sessions = parse_all_media_sessions(_fixture("media_session_wholphin.txt"))
+        assert sessions[0].position != 70070
+
+    def test_position_at_uptime_extrapolates_with_speed(self):
+        session = MediaSessionInfo(
+            position=17237, speed=1.0, updated=1408392, playing=True
+        )
+        assert session.position_at_uptime(1408392 + 1000) == 18237
+        assert session.position_at_uptime(1408392) == 17237
+
+    def test_position_at_uptime_none_without_sample(self):
+        assert MediaSessionInfo().position_at_uptime(1_000_000) is None
+
+    def test_paused_session_parses_state_and_position(self):
+        dump = (
+            "Sessions Stack - have 1 sessions:\n"
+            "  Some app session com.example.player/Session (userId=0)\n"
+            "    package=com.example.player\n"
+            "    active=true\n"
+            "    state=PlaybackState {state=2, position=4200, buffered position=9000, "
+            "speed=0.0, updated=500, actions=1, custom actions=[], active item id=0, "
+            "error=null}\n"
+            "    metadata: size=2, description=Song Title, Some Artist\n"
+            " Audio playback (lastly played comes first)\n"
+            "   uid=10100 packages=com.example.player\n"
+        )
+        sessions = parse_all_media_sessions(dump)
+        assert len(sessions) == 1
+        session = sessions[0]
+        assert session.paused is True
+        assert session.playing is False
+        assert session.position == 4200
+        assert session.speed == 0.0
+        assert session.updated == 500
+        assert session.title == "Song Title"
+        assert session.artist == "Some Artist"
+
+    def test_stateless_playbackstate_line_ignored(self):
+        """A non-PlaybackState `state=` line must not crash or fabricate state."""
+        dump = (
+            "  Some app session com.example.player/Session (userId=0)\n"
+            "    package=com.example.player\n"
+            "    active=true\n"
+            "    state=null\n"
+            "    metadata: size=1, description=Only Title\n"
+        )
+        sessions = parse_all_media_sessions(dump)
+        assert len(sessions) == 1
+        assert sessions[0].playing is False
+        assert sessions[0].paused is False
+        assert sessions[0].position is None
+
+
+class TestPlaybackStateBufferingT55:
+    """t55: Android PlaybackState 6 is BUFFERING, mapped in the parser.
+
+    The Shield's own sessions report the same integer stock Android does (6),
+    so no vendor-specific variant is treated as buffering — a device variant
+    would be a template field on the same PlaybackState line, never a
+    different integer.
+    """
+
+    def _buffering_dump(self, state=6, speed="0.0"):
+        return (
+            "Sessions Stack - have 1 sessions:\n"
+            "  Some app session com.netflix.ninja/Session (userId=0)\n"
+            "    package=com.netflix.ninja\n"
+            "    active=true\n"
+            f"    state=PlaybackState {{state={state}, position=0, "
+            f"buffered position=2000, speed={speed}, updated=900, actions=1, "
+            "custom actions=[], active item id=0, error=null}\n"
+            "    metadata: size=2, description=Movie Title, Some Artist\n"
+        )
+
+    def test_state_6_is_buffering(self):
+        sessions = parse_all_media_sessions(self._buffering_dump())
+        assert len(sessions) == 1
+        session = sessions[0]
+        assert session.buffering is True
+        assert session.playing is False
+        assert session.paused is False
+        assert session.title == "Movie Title"
+
+    def test_state_3_and_2_stay_playing_and_paused(self):
+        for state, attr in ((3, "playing"), (2, "paused")):
+            sessions = parse_all_media_sessions(self._buffering_dump(state=state))
+            session = sessions[0]
+            assert session.buffering is False
+            assert getattr(session, attr) is True
+
+    def test_state_6_wins_when_the_dump_says_speed_zero_too(self):
+        """The buffering signal is the integer, not the speed field."""
+        sessions = parse_all_media_sessions(self._buffering_dump(state=6))
+        assert sessions[0].buffering is True
+
+    def test_buffering_outranks_a_paused_session_in_the_pick_order(self):
+        sessions = parse_all_media_sessions(
+            self._buffering_dump()
+            + "  Other app session com.example.player/Session (userId=0)\n"
+            "    package=com.example.player\n"
+            "    active=true\n"
+            "    state=PlaybackState {state=2, position=1, speed=0.0, "
+            "updated=1, actions=1, custom actions=[], active item id=0, "
+            "error=null}\n"
+            "    metadata: size=1, description=Paused Tune\n"
+        )
+        assert [s.package for s in sessions] == [
+            "com.netflix.ninja",
+            "com.example.player",
+        ]
+        # and parse_media_session (no foreground preference) picks buffering
+        dump = self._buffering_dump() + (
+            "  Other app session com.example.player/Session (userId=0)\n"
+            "    package=com.example.player\n"
+            "    active=true\n"
+            "    state=PlaybackState {state=2, position=1, speed=0.0, "
+            "updated=1, actions=1, custom actions=[], active item id=0, "
+            "error=null}\n"
+            "    metadata: size=1, description=Paused Tune\n"
+        )
+        assert parse_media_session(dump).package == "com.netflix.ninja"
+
+
+class TestAudioPlaybackSection:
+    """The "Audio playback (lastly played comes first)" section lists apps
+    that recently played audio even with no MediaSession (R2)."""
+
+    def test_tivimate_shows_up_without_a_session(self):
+        packages = parse_audio_playback(_fixture("media_session_tivimate.txt"))
+        assert packages == [
+            "ar.tvplayer.tv",
+            "com.google.android.apps.mediashell",
+        ]
+
+    def test_order_is_dump_order_most_recent_first(self):
+        packages = parse_audio_playback(_fixture("media_session_tivimate.txt"))
+        assert packages[0] == "ar.tvplayer.tv"
+
+    def test_wholphin_audio_playback(self):
+        assert parse_audio_playback(_fixture("media_session_wholphin.txt")) == [
+            "com.github.damontecres.wholphin"
+        ]
+
+    def test_lines_before_the_section_are_ignored(self):
+        """`... package:` listener lines precede the section and must not leak
+        into the audio-playback package list."""
+        dump = (
+            "  Media key listener package:\n"
+            "  OnMediaKeyEventDispatchedListener: added 0 listener(s)\n"
+            " Audio playback (lastly played comes first)\n"
+            "   uid=10117 packages=ar.tvplayer.tv\n"
+        )
+        assert parse_audio_playback(dump) == ["ar.tvplayer.tv"]
+
+    def test_empty_dump(self):
+        assert parse_audio_playback("") == []
+
+
+def test_running_apps_buffering_state_t55():
+    """t55: a buffering session (and a buffering last-known) is named buffering."""
+    from nsh.ha_adb_common import MediaSessionInfo, running_apps_from_tasks
+
+    tasks = [
+        {"package": "com.netflix.ninja"},
+        {"package": "ar.tvplayer.tv"},
+    ]
+    sessions = [MediaSessionInfo(package="com.netflix.ninja", buffering=True)]
+    last_known = {
+        "ar.tvplayer.tv": MediaSessionInfo(package="ar.tvplayer.tv", buffering=True)
+    }
+
+    apps = running_apps_from_tasks(
+        tasks, sessions, foreground_package=None, last_known=last_known
+    )
+
+    netflix = next(a for a in apps if a["package"] == "com.netflix.ninja")
+    tivi = next(a for a in apps if a["package"] == "ar.tvplayer.tv")
+    assert netflix["state"] == "buffering"
+    assert tivi["last_known_state"] == "buffering"
+
+
+def test_running_apps_last_known_enrichment():
+    """P3-3b: apps without a live session carry their TTL-capped last-known state."""
+    from nsh.ha_adb_common import MediaSessionInfo, running_apps_from_tasks
+
+    tasks = [
+        {"package": "ar.tvplayer.tv"},
+        {"package": "com.netflix.ninja"},
+    ]
+    sessions = [MediaSessionInfo(package="com.netflix.ninja", playing=True, title="Movie")]
+    last_known = {
+        "ar.tvplayer.tv": MediaSessionInfo(
+            package="ar.tvplayer.tv", playing=False, paused=True, title="Last show"
+        )
+    }
+
+    apps = running_apps_from_tasks(tasks, sessions, foreground_package=None, last_known=last_known)
+
+    tivi = next(a for a in apps if a["package"] == "ar.tvplayer.tv")
+    netflix = next(a for a in apps if a["package"] == "com.netflix.ninja")
+
+    assert tivi["state"] == "running"  # no live session
+    assert tivi["last_known_state"] == "paused"
+    assert tivi["last_known_title"] == "Last show"
+    assert "last_known_state" not in netflix  # live session enriched instead
+    assert netflix["state"] == "playing"
+
+
+def test_parse_application_label_default_locale_wins():
+    """P5-1: the default-locale label wins; localized suffixes are skipped."""
+    from nsh.ha_adb_common.app_label import parse_application_label
+
+    dump = (
+        "application-label: 'TiviMate'\n"
+        "application-label-de: 'TiviMate DE'\n"
+        "application-icon-320: 'x'"
+    )
+    assert parse_application_label(dump) == "TiviMate"
+
+
+def test_parse_application_label_tolerance():
+    from nsh.ha_adb_common.app_label import parse_application_label
+
+    # double-quoted, empty first label (multi-label block), nonexistent
+    assert parse_application_label('application-label:"Wholphin"') == "Wholphin"
+    multi_label = "application-label:''\napplication-label: 'TiviMate'"
+    assert parse_application_label(multi_label) == "TiviMate"
+    assert parse_application_label("application-label: null") is None
+    assert parse_application_label("") is None
+    assert parse_application_label("nothing here") is None
+
+
+def _logcat_lines():
+    """Synthetic logcat list covering START shapes + noise + wrapping."""
+    return [
+        "03-21 10:19:40.100  3104  3456 I NotificationService: noise",
+        "03-21 10:19:41.792  3104  3456 I ActivityTaskManager: START u0 "
+        "{cmp=com.netflix.ninja/com.netflix.ui.main flg=0x10000000}",
+        "03-21 10:19:45.100  3104  3456 I ActivityTaskManager: START u0 {cmp=null}",
+        "03-21 10:19:47.000  3104  3456 I ActivityTaskManager: START u10 "
+        "{cmp=ar.tvplayer.tv/.ui.MainActivity",
+        "        xflg=214 abi=arm64-v8a}",
+        "03-21 10:19:50.000  3104  3456 I ActivityTaskManager: Displayed",
+    ]
+
+
+def test_logcat_start_records_parse_cmp():
+    from nsh.ha_adb_common.logcat_events import foreground_from_logcat, foreground_packages
+
+    lines = _logcat_lines()
+    assert foreground_packages(lines) == ["com.netflix.ninja", "ar.tvplayer.tv"]
+    # LAST valid START wins
+    assert foreground_from_logcat(lines) == "ar.tvplayer.tv"
+
+
+def test_logcat_non_start_and_null_ignored():
+    from nsh.ha_adb_common.logcat_events import foreground_from_logcat
+
+    assert foreground_from_logcat([
+        "03-21 10:19:50.000  3104  3456 I ActivityTaskManager: Displayed",
+        "plain noise",
+    ]) is None
+    lines = _logcat_lines()
+    assert foreground_from_logcat(lines) == "ar.tvplayer.tv"  # null skipped
+
+
+def test_logcat_multi_user_prefix_tolerated():
+    from nsh.ha_adb_common.logcat_events import foreground_from_logcat
+
+    assert foreground_from_logcat(
+        ["03-21 10:19:41.792  3104  3456 I ActivityTaskManager: START u123 {cmp=net.whatsapp/"] + [
+            "        flg=0x1}"]
+    ) == "net.whatsapp"

tests/test_media_sources.py

@@ -0,0 +1,471 @@
+"""tests/test_media_sources.py — source_list, source and native select_source (t47).
+
+The last piece a universal-media-player replacement needs from this integration:
+a dropdown of the apps (``source_list``), an answer to "what is on screen"
+(``source``), and a way to pick one (``media_player.select_source``). All three read
+the SAME app directory — the user's Apps map, else the curated default — so the
+dropdown cannot offer a name the launch path cannot resolve.
+
+The t44 rule still holds: a configured ``select_source`` script takes precedence,
+because selecting a source can be more than launching an app. Without one, the name
+resolves back to its package and goes out over the shared ``play_media("app", …)``
+path; an unknown name is a translated error, never a silent no-op.
+"""
+
+import entity_stublib
+import pytest
+from nsh.const import CONF_APP_NAME_MAP, CONF_COMMAND_SCRIPTS, SCRIPT_VAR_APP_NAME
+from test_command_routing import make_player
+
+TIVIMATE = "ar.tvplayer.tv"
+SCRIPT = "script.shield_source"
+
+
+@pytest.fixture(name="modules", autouse=True)
+def scoped_modules():
+    """Stub scope + loaded entity modules for one test (t7 discipline)."""
+    snapshot = entity_stublib.snapshot_modules()
+    entity_stublib.install()
+    try:
+        yield entity_stublib.load_entity_modules()
+    finally:
+        entity_stublib.restore_modules(snapshot)
+
+
+def _player(modules, *, app_map=None, scripts=None, foreground=None):
+    player, served, _intents = make_player(modules)
+    if app_map is not None:
+        player._entry.options[CONF_APP_NAME_MAP] = app_map
+    if scripts is not None:
+        player._entry.options[CONF_COMMAND_SCRIPTS] = scripts
+    if foreground is not None:
+        player._manager._on_current_app(foreground)
+    return player, served
+
+
+class TestSourceList:
+    """The dropdown: friendly names, in a stable order, from the one directory."""
+
+    def test_it_comes_from_the_apps_map(self, modules):
+        player, _served = _player(
+            modules,
+            app_map={"com.custom.one": "One", "com.custom.two": "Two"},
+        )
+
+        assert player.source_list == ["One", "Two"]  # map order, not shuffled
+
+    def test_it_falls_back_to_the_curated_directory(self, modules):
+        player, _served = _player(modules)  # no map configured
+
+        assert player.source_list == ["TiviMate", "Wholphin", "Netflix", "YouTube"]
+
+    def test_a_blank_name_never_reaches_the_dropdown(self, modules):
+        """t49: the map is hand-editable, so 'com.x=' must not offer an empty entry.
+
+        An empty entry is worst than useless: it is a dropdown item that
+        select_source has to reject as an unknown source.
+        """
+        player, _served = _player(
+            modules,
+            app_map={
+                "com.blank": "",
+                TIVIMATE: "TiviMate",
+                "com.spaces": "   ",
+                "com.netflix.ninja": "Netflix",
+            },
+        )
+
+        assert player.source_list == ["TiviMate", "Netflix"]
+        assert "" not in player.source_list
+
+    def test_the_list_is_the_normalized_directory_exactly(self, modules):
+        """Same accessor, same order, same bytes — a blank entry excepted (t49).
+
+        t61 removed the browse tree that used to be the second consumer of this
+        one accessor; the dropdown and the reverse lookup are still fed from it,
+        so a row can only launch the app it shows.
+        """
+        for app_map in (
+            None,  # the curated default
+            {"ar.tvplayer.tv": "TiviMate", "com.netflix.ninja": "Netflix"},
+        ):
+            player, _served = _player(modules, app_map=app_map)
+
+            assert player.source_list == list(player._app_directory.values())
+
+    async def test_the_survivors_still_resolve_and_launch(self, modules):
+        """The filter must not cost a resolvable name (t49)."""
+        player, _served = _player(
+            modules,
+            app_map={"com.blank": "", TIVIMATE: "TiviMate", "com.blank2": "  "},
+        )
+
+        for name in player.source_list:
+            assert player._source_package(name) is not None
+
+        await player.async_select_source("TiviMate")
+
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+        # the blank entries are not selectable, and never launch
+        assert player._source_package("") is None
+        assert player._source_package("   ") is None
+
+    def test_every_offered_name_resolves_to_a_package(self, modules):
+        """The invariant the shared directory buys: no name without a destination.
+
+        t51 extends it to the hand-edited shapes: blanks, padded names and two
+        entries normalizing to one name all still leave only resolvable offers.
+        """
+        for app_map in (
+            None,
+            {"com.custom.one": "One"},
+            {
+                "com.blank": "",
+                "com.blank.package": "   ",
+                TIVIMATE: "  TiviMate  ",
+                "com.a": "Netflix",
+                "com.b": "  Netflix  ",
+                "": "Ghost",
+            },
+        ):
+            player, _served = _player(modules, app_map=app_map)
+
+            for name in player.source_list:
+                assert player._source_package(name) is not None, name
+
+
+class TestSource:
+    """`source` is the foreground app's resolved name — the app_name chain."""
+
+    def test_it_resolves_through_the_apps_map(self, modules):
+        player, _served = _player(
+            modules, app_map={TIVIMATE: "TiviMate"}, foreground=TIVIMATE
+        )
+
+        assert player.source == "TiviMate"
+        assert player.source == player.app_name  # one truth, not two
+
+    def test_it_uses_the_cached_device_label_when_unmapped(self, modules):
+        player, _served = _player(modules, foreground="com.netflix.ninja")
+        player._manager.cache_app_label("com.netflix.ninja", "Netflix")
+
+        assert player.source == "Netflix"
+
+    def test_it_falls_back_to_the_raw_package(self, modules):
+        player, _served = _player(modules, foreground="com.unknown.app")
+
+        assert player.source == "com.unknown.app"
+
+    def test_it_is_unknown_when_nothing_has_reported(self, modules):
+        player, _served = _player(modules)
+
+        assert player.source is None
+
+
+class TestSelectSource:
+    """Picking a source: script first, else the native launch, else an error."""
+
+    async def test_a_name_launches_its_package(self, modules):
+        player, served = _player(
+            modules, app_map={TIVIMATE: "TiviMate", "com.netflix.ninja": "Netflix"}
+        )
+
+        await player.async_select_source("TiviMate")
+
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+        assert served == []  # no script was configured, and nothing else left
+
+    async def test_the_curated_names_launch_too(self, modules):
+        player, _served = _player(modules)
+
+        await player.async_select_source("Netflix")
+
+        assert player._manager._protocol.launch_calls == ["com.netflix.ninja"]
+
+    async def test_a_raw_package_and_any_case_are_accepted(self, modules):
+        player, _served = _player(
+            modules, app_map={TIVIMATE: "TiviMate", "com.netflix.ninja": "Netflix"}
+        )
+
+        await player.async_select_source(TIVIMATE)
+        await player.async_select_source("tivimate")
+        await player.async_select_source("  NETFLIX  ")
+
+        assert player._manager._protocol.launch_calls == [
+            TIVIMATE,
+            TIVIMATE,
+            "com.netflix.ninja",
+        ]
+
+    async def test_a_configured_script_still_wins(self, modules):
+        player, served = _player(
+            modules,
+            app_map={TIVIMATE: "TiviMate"},
+            scripts={"select_source": SCRIPT},
+        )
+
+        await player.async_select_source("TiviMate")
+
+        assert served == [
+            (
+                "script",
+                "turn_on",
+                {"entity_id": SCRIPT, "variables": {SCRIPT_VAR_APP_NAME: "TiviMate"}},
+            )
+        ]
+        assert player._manager._protocol.launch_calls == []  # native path untouched
+
+    async def test_an_unknown_name_raises_a_translated_error(self, modules):
+        from homeassistant.exceptions import ServiceValidationError
+
+        player, _served = _player(modules, app_map={TIVIMATE: "TiviMate"})
+
+        with pytest.raises(ServiceValidationError) as raised:
+            await player.async_select_source("Not An App")
+
+        assert raised.value.translation_domain == "nvidia_shield"
+        assert raised.value.translation_key == "unknown_source"
+        assert raised.value.translation_placeholders == {"source": "Not An App"}
+        assert player._manager._protocol.launch_calls == []  # nothing was sent
+
+    async def test_an_empty_name_is_an_error_too(self, modules):
+        from homeassistant.exceptions import ServiceValidationError
+
+        player, _served = _player(modules)
+
+        with pytest.raises(ServiceValidationError):
+            await player.async_select_source("   ")
+
+
+class TestAdvertisedFeatures:
+    """HA routes a service by its feature flag, so the flag has to be honest."""
+
+    def test_a_source_list_advertises_select_source(self, modules):
+        from homeassistant.components.media_player import MediaPlayerEntityFeature
+
+        player, _served = _player(modules)
+
+        assert player.supported_features & MediaPlayerEntityFeature.SELECT_SOURCE
+
+    def test_a_script_advertises_it_even_with_no_directory(self, modules, monkeypatch):
+        from homeassistant.components.media_player import MediaPlayerEntityFeature
+
+        player, _served = _player(modules, scripts={"select_source": SCRIPT})
+        monkeypatch.setattr(type(player), "_app_directory", property(lambda self: {}))
+
+        assert player.supported_features & MediaPlayerEntityFeature.SELECT_SOURCE
+
+    def test_neither_means_it_is_not_offered(self, modules, monkeypatch):
+        from homeassistant.components.media_player import MediaPlayerEntityFeature
+
+        player, _served = _player(modules)
+        monkeypatch.setattr(type(player), "_app_directory", property(lambda self: {}))
+
+        assert not player.supported_features & MediaPlayerEntityFeature.SELECT_SOURCE
+
+    def test_select_source_is_not_gated_on_the_volume_set_script(self, modules):
+        """The two script-only commands stay independent."""
+        from homeassistant.components.media_player import MediaPlayerEntityFeature
+
+        player, _served = _player(modules, scripts={"volume_set": "script.volume"})
+
+        assert player.supported_features & MediaPlayerEntityFeature.VOLUME_SET
+        assert player.supported_features & MediaPlayerEntityFeature.SELECT_SOURCE
+
+
+class TestNormalizedDirectories:
+    """t51: a hand-edited map is normalized ONCE, in the shared accessor.
+
+    The two residuals t49 left share one cause — `_app_directory` handed the raw map
+    out, so the Browse tree showed a child with a blank title and the reverse lookup
+    compared the user's padded name against itself. The policy now lives in that one
+    accessor (strip names and keys, drop blanks, first-in-map-order wins a shared
+    name) and is pinned here, together with the promise that a well-formed map is
+    untouched.
+
+    t61 left two surfaces instead of three: the Browse tree that used to be the
+    second view is gone (apps are sources), so the pins below anchor the same
+    policy on `_app_directory` — the shared accessor itself — and on
+    `source_list`/`_source_package`, which are what a user can still reach.
+    """
+
+    BLANKED = {
+        "com.blank": "",
+        TIVIMATE: "TiviMate",
+        "com.spaces": "   ",
+        "": "Ghost",
+    }
+
+    def test_a_blank_entry_never_reaches_the_dropdown(self, modules):
+        """Blanks are dropped once, in the accessor every offer reads (t49)."""
+        player, _served = _player(modules, app_map=dict(self.BLANKED))
+
+        assert list(player._app_directory) == [TIVIMATE]
+        assert list(player._app_directory.values()) == ["TiviMate"]
+        assert player.source_list == ["TiviMate"]
+
+    def test_a_blank_package_is_dropped_too(self, modules):
+        """An entry with no package is a row that cannot be launched."""
+        player, _served = _player(
+            modules, app_map={"": "Ghost", "   ": "Ghost 2", TIVIMATE: "TiviMate"}
+        )
+
+        assert list(player._app_directory) == [TIVIMATE]
+        assert player.source_list == ["TiviMate"]
+
+    async def test_a_padded_name_is_stripped_once_and_then_resolves(self, modules):
+        player, _served = _player(
+            modules,
+            app_map={TIVIMATE: "  TiviMate  ", "com.netflix.ninja": "Netflix"},
+        )
+
+        # display and match key are one string, everywhere
+        assert player.source_list == ["TiviMate", "Netflix"]
+        assert list(player._app_directory.values()) == ["TiviMate", "Netflix"]
+        # ...so every spelling the user may type finds the package
+        assert player._source_package("TiviMate") == TIVIMATE
+        assert player._source_package("  TiviMate  ") == TIVIMATE
+        assert player._source_package("tivimate") == TIVIMATE
+
+        await player.async_select_source("TiviMate")
+
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+
+    async def test_two_packages_with_one_name_keep_a_deterministic_winner(self, modules):
+        """Both apps stay reachable; the NAME goes to the first in map order."""
+        player, _served = _player(
+            modules, app_map={"com.a": "Netflix", "com.b": "  Netflix  "}
+        )
+
+        # t61: the directory keeps BOTH entries, each under its own package id;
+        # the removal of the browse tree does not remove the reachability it
+        # used to expose — select_source-by-id is that surface now.
+        assert player._app_directory == {"com.a": "Netflix", "com.b": "Netflix"}
+        assert player._source_package("com.b") == "com.b"  # the shadowed package
+        # the dropdown offers the name once, and resolves to the first entry
+        assert player.source_list == ["Netflix"]
+        assert player._source_package("Netflix") == "com.a"
+
+        await player.async_select_source("Netflix")
+
+        assert player._manager._protocol.launch_calls == ["com.a"]
+
+        # map order decides — the user's order, not chance
+        swapped, _served_swapped = _player(
+            modules, app_map={"com.b": "Netflix", "com.a": "Netflix"}
+        )
+
+        assert swapped._source_package("Netflix") == "com.b"
+
+    async def test_a_wellformed_map_passes_through_unchanged(self, modules):
+        """Stripping touches the EDGES: an inner space is part of the name."""
+        player, _served = _player(
+            modules, app_map={TIVIMATE: "TiviMate Pro", "com.netflix.ninja": "Netflix"}
+        )
+
+        assert player._app_directory == {
+            TIVIMATE: "TiviMate Pro",
+            "com.netflix.ninja": "Netflix",
+        }
+        assert player.source_list == ["TiviMate Pro", "Netflix"]
+        assert player._source_package("TiviMate Pro") == TIVIMATE
+
+
+class TestCaseInsensitiveNames:
+    """t53: one row per NAME, compared case-insensitively — as the lookup does.
+
+    The dropdown and the reverse lookup disagreed about case: two entries called
+    `Dup` and `dup` survived an exact-match dedupe as two rows, while
+    `_source_package` — case-insensitive by design (t47) — resolved BOTH to the
+    first entry. So the second row launched the first entry's app: a row that lies
+    about what it does, and the one shape here the editor can produce by itself.
+    """
+
+    async def test_names_differing_only_by_case_are_offered_once(self, modules):
+        player, _served = _player(modules, app_map={"com.a": "Dup", "com.b": "dup"})
+
+        # one row, keeping the first spelling the user typed
+        assert player.source_list == ["Dup"]
+
+        # ...and the directory still holds both apps, each under its own id, so
+        # the shadowed one stays reachable by its package id (t61: that is what
+        # the removed browse tree used to publish)
+        assert player._app_directory == {"com.a": "Dup", "com.b": "dup"}
+        assert player._source_package("com.b") == "com.b"
+
+    async def test_the_offered_row_launches_the_app_it_shows(self, modules):
+        player, _served = _player(modules, app_map={"com.a": "Dup", "com.b": "dup"})
+
+        await player.async_select_source(player.source_list[0])
+
+        assert player._manager._protocol.launch_calls == ["com.a"]  # the row it shows
+
+    async def test_the_shadowed_app_stays_reachable_by_id(self, modules):
+        player, _served = _player(modules, app_map={"com.a": "Dup", "com.b": "dup"})
+
+        assert player._source_package("com.b") == "com.b"
+
+        await player.async_select_source("com.b")
+
+        assert player._manager._protocol.launch_calls == ["com.b"]
+
+        # the shadowed NAME still resolves to the one the list offers (first wins)
+        assert player._source_package("dup") == "com.a"
+
+    async def test_the_first_spelling_wins_in_map_order(self, modules):
+        player, _served = _player(modules, app_map={"com.b": "dup", "com.a": "Dup"})
+
+        assert player.source_list == ["dup"]
+
+        await player.async_select_source("dup")
+
+        assert player._manager._protocol.launch_calls == ["com.b"]
+
+    async def test_a_mixed_map_offers_each_name_once(self, modules):
+        player, _served = _player(
+            modules,
+            app_map={
+                "com.a": "Dup",
+                "com.b": "dup",
+                "com.netflix.ninja": "Netflix",
+                "com.google.android.youtube.tv": "netflix",
+                TIVIMATE: "TiviMate Pro",
+            },
+        )
+
+        assert player.source_list == ["Dup", "Netflix", "TiviMate Pro"]
+        assert player._source_package("Netflix") == "com.netflix.ninja"
+
+    def test_the_offered_list_never_repeats_a_name(self, modules):
+        """The invariant behind the fix, over every map shape in this file."""
+        for app_map in (
+            None,
+            {"com.a": "Dup", "com.b": "dup"},
+            {"com.a": "Dup", "com.b": "DUP", "com.c": "dup"},
+            {"com.blank": "", TIVIMATE: "  TiviMate  ", "com.a": "Netflix", "com.b": "netflix"},
+        ):
+            player, _served = _player(modules, app_map=app_map)
+            folded = [name.casefold() for name in player.source_list]
+
+            assert len(folded) == len(set(folded)), app_map
+            assert len(folded) == len(player.source_list)
+
+    def test_a_padded_map_value_is_displayed_verbatim_by_app_name(self, modules):
+        """The README's boundary, pinned: the list cleans it, app_name does not.
+
+        The name map is the user's own override, so it is used as typed — which is
+        why `source` can be a string that is not in source_list.
+        """
+        player, _served = _player(
+            modules, app_map={TIVIMATE: "  TiviMate  "}, foreground=TIVIMATE
+        )
+
+        assert player.source_list == ["TiviMate"]  # the dropdown cleans it
+        assert player.source == "  TiviMate  "  # this surface shows it as typed
+        assert player.source not in player.source_list
+
+    def test_a_blank_map_value_falls_through_to_the_raw_package(self, modules):
+        """Blanks are not displayed as nothing — the chain continues past them."""
+        player, _served = _player(modules, app_map={TIVIMATE: ""}, foreground=TIVIMATE)
+
+        assert player.source == TIVIMATE

tests/test_module_coverage.py

@@ -0,0 +1,204 @@
+"""tests/test_module_coverage.py — nothing in the package may dangle (t41).
+
+Two defects motivated this file, and both shipped with a green suite:
+
+1. ``button.py`` imported a helper that had been deleted. No harness ever loaded
+   that file (``entity_stublib.load_entity_modules`` lists the platforms it
+   knows), so the ImportError would have appeared only in a user's log. The fix
+   is exhaustive by construction: the sweep walks the package for ``*.py`` files
+   in a clean interpreter, under the stub harness, and loads every one of them.
+   A new platform is covered the moment the file exists — there is no list to
+   update and no special case.
+
+2. The drift sweep resolved ``homeassistant.*`` imports only, so it could not
+   see a relative import of a name that no longer exists — the same defect one
+   layer up. ``ha_api_drift.scan_package_imports`` now resolves the package's own
+   imports from the AST, with no Home Assistant and therefore no stub needed.
+
+Each sweep carries its own red proof, and nothing about the pre-t41 tree supplies
+it. At ``c588a7c`` ``helpers.py`` still DEFINED ``discover_adb_host``, so there was
+no broken relative import to find; and that commit's engine predates BOTH passes
+(its ``ha_api_drift.py`` has no entity-contract check and no package-import check
+at all), so a real-HA run there is simply clean — exit 0, "no Home-Assistant API
+drift (13 modules …)", no findings. The proof is therefore built, never borrowed:
+a copy of the tree with the ``discover_adb_host`` reference actually reverted must
+fail each sweep, or the check is decoration.
+"""
+
+import shutil
+import subprocess
+import sys
+from pathlib import Path
+
+import ha_api_drift
+import pytest
+from conftest import _SHIELD_DIR
+
+TESTS_DIR = Path(__file__).resolve().parent
+REPO_ROOT = _SHIELD_DIR.parent.parent
+
+#: Loads every module of a package under the stub harness, in a clean process.
+#: ``argv``: 1 = this tests directory, 2 = the package directory to sweep.
+_DRIVER = r"""
+import sys
+from pathlib import Path
+
+tests_dir, package_root = Path(sys.argv[1]), Path(sys.argv[2])
+sys.path.insert(0, str(tests_dir))
+sys.path.insert(0, str(package_root))
+
+import entity_stublib  # noqa: E402
+from conftest import _load_module  # noqa: E402
+
+# conftest eagerly loads a few stdlib-only modules from the REAL tree (it cannot
+# know about a copied one): point the synthetic package at the tree under test
+# and drop what it imported, so every relative import resolves inside the copy.
+sys.modules["nsh"].__path__ = [str(package_root)]
+for name in [n for n in list(sys.modules) if n.startswith("nsh.")]:
+    del sys.modules[name]
+
+entity_stublib.install()
+
+loaded, failures = [], []
+for path in sorted(package_root.rglob("*.py")):
+    if "__pycache__" in path.parts:
+        continue
+    rel = path.relative_to(package_root)
+    if rel.name == "__init__.py":
+        dotted = ".".join(rel.parent.parts)
+        name = "nsh.init" if dotted in ("", ".") else f"nsh.{dotted}"
+    else:
+        name = "nsh." + ".".join(rel.with_suffix("").parts)
+    search = [str(path.parent)] if rel.name == "__init__.py" else None
+    try:
+        _load_module(name, path, search)
+    except Exception as exc:  # noqa: BLE001 - the error IS the finding
+        failures.append(f"{rel}: {type(exc).__name__}: {exc}")
+    else:
+        loaded.append(str(rel))
+
+for rel in loaded:
+    print(f"OK {rel}")
+for failure in failures:
+    print(f"FAIL {failure}")
+print(f"SUMMARY loaded={len(loaded)} failed={len(failures)} total={len(loaded) + len(failures)}")
+sys.exit(1 if failures else 0)
+"""
+
+
+def _package_modules(root: Path) -> set[str]:
+    """Every Python file of a package, as the sweep reports them."""
+    return {
+        str(path.relative_to(root))
+        for path in root.rglob("*.py")
+        if "__pycache__" not in path.parts
+    }
+
+
+def _sweep(root: Path) -> subprocess.CompletedProcess:
+    return subprocess.run(
+        [sys.executable, "-c", _DRIVER, str(TESTS_DIR), str(root)],
+        capture_output=True,
+        text=True,
+        cwd=str(REPO_ROOT),
+        check=False,
+    )
+
+
+def _reverted_copy(tmp_path: Path) -> Path:
+    """A copy of the package where button.py imports the deleted helper again."""
+    target = tmp_path / "nvidia_shield"
+    shutil.copytree(
+        _SHIELD_DIR,
+        target,
+        ignore=shutil.ignore_patterns("__pycache__", "*.json", "*.png"),
+    )
+    button = target / "button.py"
+    button.write_text(
+        "from .helpers import discover_adb_host  # the reverted reference\n"
+        + button.read_text(encoding="utf-8"),
+        encoding="utf-8",
+    )
+    return target
+
+
+def test_every_module_imports_under_the_stub_harness():
+    """The whole package loads in a clean interpreter — no module is skipped."""
+    result = _sweep(_SHIELD_DIR)
+    output = result.stdout + result.stderr
+
+    assert result.returncode == 0, output
+    reported = {
+        line.split(" ", 1)[1]
+        for line in result.stdout.splitlines()
+        if line.startswith(("OK ", "FAIL "))
+    }
+    assert reported == _package_modules(_SHIELD_DIR), "the sweep skipped or invented a file"
+    assert "failed=0" in result.stdout, output
+
+
+def test_the_sweep_fails_on_a_reverted_helper_reference(tmp_path):
+    """Red proof 1: the exact defect that motivated this check.
+
+    button.py imported ``discover_adb_host`` from helpers after that helper was
+    deleted (t41 removed it with the entity path). The sweep must fail loudly.
+    """
+    result = _sweep(_reverted_copy(tmp_path))
+    output = result.stdout + result.stderr
+
+    assert result.returncode != 0, output
+    assert "discover_adb_host" in output
+    assert "FAIL button.py" in result.stdout
+
+
+def test_every_relative_import_resolves():
+    """The same contract, statically: the package's own imports all resolve."""
+    findings = ha_api_drift.scan_package_imports()
+
+    assert findings == [], "\n".join(str(finding) for finding in findings)
+
+
+def test_the_relative_import_pass_is_not_vacuous():
+    """A pass that resolved nothing would be green for the wrong reason."""
+    report = ha_api_drift.Report()
+
+    ha_api_drift._scan_package_imports([_SHIELD_DIR], report)
+
+    assert report.relative_imports >= ha_api_drift.FLOORS["relative_imports"]
+    # and the walk itself reached every module, not only the top level (the
+    # floor sits above the top-level-only count, so a shallow glob trips it)
+    assert len(_package_modules(_SHIELD_DIR)) >= ha_api_drift.FLOORS["modules"]
+
+
+def test_the_static_sweep_fails_on_a_reverted_helper_reference(tmp_path):
+    """Red proof 2: the AST pass sees the same defect, with no Home Assistant."""
+    findings = ha_api_drift.scan_package_imports(_reverted_copy(tmp_path))
+
+    assert [finding.kind for finding in findings] == ["broken-relative-import"]
+    assert "discover_adb_host" in findings[0].detail
+    assert findings[0].path.endswith("button.py")
+
+
+@pytest.mark.parametrize(
+    ("source", "expected"),
+    [
+        # a name nobody defines
+        ("from .helpers import no_such_helper\n", "broken-relative-import"),
+        # a relative import that leaves the package
+        ("from ..sibling import thing\n", "broken-relative-import"),
+        # a submodule import is valid without a binding in __init__
+        ("from .ha_adb_common import adb_client\n", None),
+    ],
+)
+def test_the_pass_judges_the_cases_that_matter(tmp_path, source, expected):
+    package = tmp_path / "nvidia_shield"
+    (package / "ha_adb_common").mkdir(parents=True)
+    (package / "__init__.py").write_text("", encoding="utf-8")
+    (package / "helpers.py").write_text("def entry_host(entry):\n    return ''\n", encoding="utf-8")
+    (package / "ha_adb_common" / "__init__.py").write_text("", encoding="utf-8")
+    (package / "ha_adb_common" / "adb_client.py").write_text("", encoding="utf-8")
+    (package / "module.py").write_text(source, encoding="utf-8")
+
+    findings = ha_api_drift.scan_package_imports(package)
+
+    assert [finding.kind for finding in findings] == ([expected] if expected else [])

tests/test_protocol_transport.py

@@ -0,0 +1,364 @@
+"""Unit tests for the protocol transport (androidtvremote2, Phase 2, t8).
+
+Fake client mirrors AndroidTVRemote's surface (callback registration,
+``keep_reconnecting`` that owns its own reconnect task, sync ``disconnect``);
+no real gRPC / no Home Assistant. Also covers `volume_tuple` normalization
+against the real library's VolumeInfo TypedDict when the package is present
+(`uvx --with androidtvremote2 pytest`).
+"""
+
+import asyncio
+import sys
+import time
+
+import pytest
+from nsh.connection import (
+    FIELD_AWAKE,
+    FIELD_IS_AVAILABLE,
+    FIELD_IS_ON,
+    FIELD_SESSIONS,
+    FIELD_VOLUME_INFO,
+    ShieldConnectionManager,
+    StateStore,
+    volume_tuple,
+)
+
+
+class FakeProtocolClient:
+    """AndroidTVRemote-shaped fake: callbacks + self-owned reconnect task."""
+
+    def __init__(self):
+        self._is_on_callbacks: list = []
+        self._is_available_callbacks: list = []
+        self._current_app_callbacks: list = []
+        self._volume_callbacks: list = []
+        self._invalid_auth_callback = None
+        self._reconnect_task = None
+        self.disconnect_calls = 0
+
+    # -- registration (mirrors the real API) --
+    def add_is_on_updated_callback(self, callback):
+        self._is_on_callbacks.append(callback)
+
+    def add_is_available_updated_callback(self, callback):
+        self._is_available_callbacks.append(callback)
+
+    def add_current_app_updated_callback(self, callback):
+        self._current_app_callbacks.append(callback)
+
+    def add_volume_info_updated_callback(self, callback):
+        self._volume_callbacks.append(callback)
+
+    # -- pushes (test helper: simulates device-side messages) --
+    def push_is_on(self, on):
+        for cb in list(self._is_on_callbacks):
+            cb(on)
+
+    def push_is_available(self, available):
+        for cb in list(self._is_available_callbacks):
+            cb(available)
+
+    def push_current_app(self, app_package):
+        for cb in list(self._current_app_callbacks):
+            cb(app_package)
+
+    def push_volume_info(self, info):
+        for cb in list(self._volume_callbacks):
+            cb(info)
+
+    # -- lifecycle --
+    def keep_reconnecting(self, invalid_auth_callback=None):
+        """Own task like the real library (0.1 s → 30 s backoff internally)."""
+        self._invalid_auth_callback = invalid_auth_callback
+        loop = asyncio.get_event_loop()
+        self._reconnect_task = loop.create_task(self._reconnect_loop())
+
+    async def _reconnect_loop(self):
+        while True:  # the real task sleeps through its internal backoff
+            await asyncio.sleep(0.05)
+
+    def fire_invalid_auth(self):
+        self._invalid_auth_callback()
+
+    def disconnect(self):
+        self.disconnect_calls += 1
+        if self._reconnect_task is not None:
+            self._reconnect_task.cancel()
+
+
+def _protocol_manager(client=None, **kwargs) -> ShieldConnectionManager:
+    return ShieldConnectionManager(hass=None, entry=None, protocol=client, **kwargs)
+
+
+async def _drain_loop():
+    """Let call_soon_threadsafe callbacks scheduled via the running loop run."""
+    await asyncio.sleep(0.01)
+
+
+class TestPushCallbackWiring:
+    async def test_is_on_and_availability_push_into_store(self):
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client)
+        notified = []
+        manager.register_listener(lambda: notified.append(True))
+
+        await manager._start_protocol()
+        client.push_is_on(True)
+        client.push_is_available(False)
+        await _drain_loop()
+
+        assert manager.is_on is True
+        assert manager.is_available is False
+        assert manager.store.get(FIELD_IS_ON) is True
+        assert notified, "listeners pinged from protocol pushes"
+
+        await manager.async_stop()
+
+    async def test_current_app_push_stored_raw_package(self):
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client)
+        await manager._start_protocol()
+        client.push_current_app("com.netflix.ninja")
+        await _drain_loop()
+        assert manager.current_app == "com.netflix.ninja"  # name resolution deferred
+        await manager.async_stop()
+
+    async def test_volume_push_normalized_to_level_max_muted(self):
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client)
+        await manager._start_protocol()
+        client.push_volume_info({"level": 7, "max": 15, "muted": True})
+        await _drain_loop()
+        assert manager.volume_info == (7.0, 15.0, True)
+        assert manager.store.get(FIELD_VOLUME_INFO)[2] is True
+        await manager.async_stop()
+
+
+class TestInvalidAuthHook:
+    async def test_invalid_auth_invokes_entry_callback(self):
+        client = FakeProtocolClient()
+        fired = []
+        manager = _protocol_manager(
+            client, invalid_auth_callback=lambda: fired.append(True)
+        )
+        await manager._start_protocol()
+
+        client.fire_invalid_auth()
+
+        assert fired == [True], "reauth hook fired, not a retry storm (t9 delegates)"
+        await manager.async_stop()
+
+    async def test_invalid_auth_without_callback_is_safe(self):
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client)
+        await manager._start_protocol()
+        client.fire_invalid_auth()  # no callback registered — must not raise
+        await manager.async_stop()
+
+
+class TestLifecycle:
+    async def test_stop_disconnects_lib_owned_reconnect_task(self):
+        """The library owns keep_reconnecting's task; closing the client
+        tears it down — the manager never wraps that task itself."""
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client)
+        await manager._start_protocol()
+        task = client._reconnect_task
+        assert task is not None
+
+        await manager.async_stop()
+        await _drain_loop()  # let the lib-owned task settle its cancellation
+
+        assert client.disconnect_calls == 1
+        assert task.cancelled()
+        assert manager._protocol is None
+
+    async def test_protocol_with_factory_settings_builds_client(self, monkeypatch):
+        client = FakeProtocolClient()
+        built = []
+
+        def fake_builder(*args, **kwargs):
+            built.append(kwargs)
+            return client
+
+        monkeypatch.setattr(ShieldConnectionManager, "build_protocol_client", fake_builder)
+        manager = ShieldConnectionManager(
+            hass=None,
+            entry=None,
+            protocol_settings={
+                "host": "shield.local",
+                "client_name": "Home Assistant",
+                "certfile": "/tmp/cert.pem",
+                "keyfile": "/tmp/key.pem",
+            },
+        )
+        await manager._start_protocol()
+
+        assert manager._protocol is client
+        assert built
+        kwargs = built[0]
+        assert kwargs["host"] == "shield.local"
+        assert kwargs["client_name"] == "Home Assistant"
+        assert kwargs["certfile"] == "/tmp/cert.pem"
+        assert kwargs["keyfile"] == "/tmp/key.pem"
+        await manager.async_stop()
+
+    async def test_passive_without_protocol_configuration(self):
+        manager = _protocol_manager(client=None)
+        await manager._start_protocol()  # no factory, no settings → no-op
+
+        assert manager._protocol is None
+        assert manager.is_on is None
+        assert manager.is_available is None
+        assert manager.current_app is None
+        assert manager.volume_info is None
+        await manager.async_stop()
+
+
+class TestPushEdgeCases:
+    async def test_push_after_loop_close_falls_back_to_direct_notify(self):
+        """Push callbacks that outlive a closed loop must not crash."""
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client)
+        notified = []
+        manager.register_listener(lambda: notified.append(True))
+
+        await manager._start_protocol()
+
+        loop = asyncio.new_event_loop()
+        loop.close()
+        manager._protocol_loop = loop  # stale/closed loop (mid-shutdown state)
+
+        client.push_is_on(True)
+        await _drain_loop()
+
+        assert manager.is_on is True  # store stamped via direct-notify path
+        assert notified  # listeners still pinged synchronously
+        await manager.async_stop()
+
+    async def test_store_ttl_applies_to_protocol_fields(self):
+        now = [1000.0]
+        store = StateStore(ttl=60.0, clock=lambda: now[0])
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client, store=store)
+        await manager._start_protocol()
+        client.push_is_on(True)
+        await _drain_loop()
+
+        now[0] += 60.1
+        assert manager.is_on is None  # expired like every other store field
+        assert manager.store.get(FIELD_IS_AVAILABLE) is None
+        await manager.async_stop()
+
+    async def test_pushes_are_stamped_with_transition_time(self):
+        client = FakeProtocolClient()
+        manager = _protocol_manager(client)
+        await manager._start_protocol()
+        before = time.monotonic()
+        client.push_is_available(True)
+        await _drain_loop()
+        after = time.monotonic()
+        stamped_at = manager.store._values[FIELD_IS_AVAILABLE][0]
+        assert before <= stamped_at <= after
+        await manager.async_stop()
+
+
+class FakeAdbForOutage:
+    """ADB poller stub for the outage test (wake poll fails)."""
+
+    def __init__(self):
+        self.connected = True
+        self.awake = None
+        self.disconnect_calls = 0
+
+    async def connect(self):
+        self.connected = True
+        return True
+
+    async def disconnect(self):
+        self.disconnect_calls += 1
+        self.connected = False
+
+    async def is_awake(self):
+        return self.awake if self.connected else None
+
+
+class TestAdbOutageKeepsProtocolTruth:
+    async def test_note_failure_clears_only_adb_fields(self):
+        """F2: an ADB outage must not clobber device-reported protocol truth."""
+        poller = FakeAdbForOutage()
+        poller.connected = True
+        poller.awake = None  # wake poll fails → cycle failure path
+        client = FakeProtocolClient()
+        manager = ShieldConnectionManager(
+            hass=None, entry=None, poller=poller, protocol=client
+        )
+        await manager._start_protocol()
+
+        client.push_is_on(True)
+        client.push_is_available(True)
+        client.push_current_app("com.netflix.ninja")
+        client.push_volume_info({"level": 5, "max": 15, "muted": False})
+        manager.store.set(FIELD_AWAKE, True)
+        manager.store.set(FIELD_SESSIONS, ["session-data"])
+
+        await manager._watchdog_cycle(5.0)  # ADB outage → _note_failure
+
+        # ADB-derived fields cleared (regenerated by the watchdog)
+        assert manager.store.get(FIELD_AWAKE) is None
+        assert manager.store.get(FIELD_SESSIONS, []) == []
+        # protocol push truth survives the ADB outage (TTL expiry rules it)
+        assert manager.is_on is True
+        assert manager.is_available is True
+        assert manager.current_app == "com.netflix.ninja"
+        assert manager.volume_info == (5.0, 15.0, False)
+        await manager.async_stop()
+
+
+class TestImportGuard:
+    def test_missing_library_degrades_to_adb_only(self, monkeypatch, caplog):
+        """F1: a protocol-enabled entry without androidtvremote2 keeps
+        running ADB-only — the guarded factory logs a warning and builds
+        nothing instead of raising at setup."""
+        import logging
+
+        monkeypatch.setitem(sys.modules, "androidtvremote2", None)
+        with caplog.at_level(logging.WARNING):
+            client = ShieldConnectionManager.build_protocol_client(
+                "shield.local", "Home Assistant", "/tmp/c.pem", "/tmp/k.pem"
+            )
+        assert client is None
+        assert any("degrades to ADB-only" in r.message for r in caplog.records)
+
+    async def test_settings_entry_without_library_stays_passive(self, monkeypatch):
+        manager = ShieldConnectionManager(
+            hass=None,
+            entry=None,
+            protocol_settings={
+                "host": "shield.local",
+                "client_name": "HA",
+                "certfile": "/tmp/c.pem",
+                "keyfile": "/tmp/k.pem",
+            },
+        )
+        monkeypatch.setitem(sys.modules, "androidtvremote2", None)
+        await manager._start_protocol()
+        assert manager._protocol is None  # passive, no crash
+        await manager.async_stop()
+
+
+class TestVolumeTuple:
+    def test_normalizes_typed_dict(self):
+        assert volume_tuple({"level": 7, "max": 15, "muted": True}) == (7.0, 15.0, True)
+
+    def test_defaults_on_partial_dict(self):
+        assert volume_tuple({"muted": False}) == (0.0, 1.0, False)
+
+    def test_none_and_garbage_yield_none(self):
+        assert volume_tuple(None) is None
+        assert volume_tuple("garbage") is None
+
+    def test_accepts_real_library_volume_info(self):
+        androidtvremote2 = pytest.importorskip("androidtvremote2")
+        info = androidtvremote2.VolumeInfo(level=3, max=15, muted=True)
+        assert volume_tuple(info) == (3.0, 15.0, True)

tests/test_readme.py

@@ -0,0 +1,72 @@
+"""tests/test_readme.py — the README's user-facing contracts (t41).
+
+Documentation drifts silently: the seed example is read by people who then
+report "the key did nothing". These pins are deliberately textual — no YAML
+parser dependency — but they check the two things that actually hurt:
+
+* every key in the `nvidia_shield:` example is a key ``_yaml_seed_blocks``
+  honours (nothing documented that the integration ignores);
+* the replacement guide names the integrations and the glue it retires, so the
+  t41 ruling stays visible to users, not only in the changelog.
+"""
+
+import re
+from pathlib import Path
+
+import pytest
+
+README = Path(__file__).resolve().parent.parent / "README.md"
+
+# helpers.seed_host / helpers.seed_adb_enabled read these; nothing else in a
+# seed block reaches the entry (the rest is the interactive flow's or the
+# options page's to set).
+SEEDED_KEYS = {
+    "name",
+    "host",
+    "adb_port",
+    "adb_enabled",
+    "protocol_host",  # legacy, still accepted
+    "adb_host",  # legacy, still accepted
+}
+
+
+@pytest.fixture(scope="module")
+def readme_text() -> str:
+    return README.read_text(encoding="utf-8")
+
+
+def _seed_example(text: str) -> str:
+    match = re.search(r"```yaml\n(nvidia_shield:\n(?:.*\n)*?)```", text)
+    assert match, "the README has no `nvidia_shield:` example block"
+    return match.group(1)
+
+
+def test_the_example_block_only_uses_seeded_keys(readme_text):
+    keys = set(re.findall(r"^\s+([a-z_]+):", _seed_example(readme_text), re.M))
+
+    assert keys, "the example block declares no keys"
+    assert keys <= SEEDED_KEYS, f"documented but ignored: {sorted(keys - SEEDED_KEYS)}"
+
+
+def test_the_example_block_documents_the_one_address_field(readme_text):
+    example = _seed_example(readme_text)
+
+    assert "host:" in example
+    # the legacy spellings are still explained, as back-compat
+    assert "protocol_host" in readme_text and "adb_host" in readme_text
+
+
+def test_the_replacement_guide_retires_the_old_stack(readme_text):
+    for needle in ("androidtv_remote", "mediasession2mqtt", "universal", "Wholphin"):
+        assert needle in readme_text, needle
+    # and it says the UI is the primary path
+    assert "primary path" in readme_text
+
+
+def test_the_readme_states_the_on_rule_precisely(readme_text):
+    """t58 UNIT 0: "no data" was too loose; the README must not still say it."""
+    assert "no source reported a power or playback fact" in readme_text
+    # the four reporting-but-not-playing shapes, named
+    for shape in ("`idle`", "`standby`", "`unavailable`", "foreground app"):
+        assert shape in readme_text, shape
+    assert "no source reported anything at all" not in readme_text

tests/test_receiver_switch.py

@@ -0,0 +1,180 @@
+"""tests/test_receiver_switch.py — a plain switch as the Receiver (t61).
+
+The user's request, verbatim: "it would be nice if a receiver could just be a
+switch, I don't need my volume scripts then because the receiver portion could
+just make sure the receiver is on if it's a switch". So the playback entry
+points — ``turn_on``, ``play_media`` and ``select_source`` — ensure a
+``switch.*`` receiver is ON, and only when it is actually off.
+
+The four states the contract names are all pinned here:
+
+* switch off + playback starts  → exactly one ``switch.turn_on``;
+* switch already on             → NO call (idempotent, not a toggle);
+* switch unavailable/unknown/missing/failing → playback continues, nothing raises;
+* a ``media_player.*`` receiver → never switched; its behaviour is unchanged.
+
+No real Shield, no real switch and no browser take part: the entity comes from
+the same stub harness every other entity test uses, the receiver's state is a
+value in ``FakeStates`` and the service call is recorded.
+"""
+
+import entity_stublib
+import pytest
+from nsh.const import CONF_APP_NAME_MAP, CONF_RECEIVER_ENTITY
+from test_command_routing import make_player
+
+TIVIMATE = "ar.tvplayer.tv"
+SOUNDBAR = "switch.soundbar"
+AVR = "media_player.avr"
+
+
+@pytest.fixture(name="modules", autouse=True)
+def scoped_modules():
+    """Stub scope + loaded entity modules for one test (t7 discipline)."""
+    snapshot = entity_stublib.snapshot_modules()
+    entity_stublib.install()
+    try:
+        yield entity_stublib.load_entity_modules()
+    finally:
+        entity_stublib.restore_modules(snapshot)
+
+
+def _player(modules, *, receiver=SOUNDBAR, state=None, app_map=None):
+    """A player with a Receiver configured (a switch unless told otherwise)."""
+    player, served, _intents = make_player(modules)
+    player._entry.options[CONF_RECEIVER_ENTITY] = receiver
+    if app_map is not None:
+        player._entry.options[CONF_APP_NAME_MAP] = app_map
+    if state is not None:
+        player.hass.states.set(receiver, state)
+    return player, served
+
+
+class TestTheSwitchReceiverIsEnsuredOn:
+    """Every playback entry point turns an off switch receiver on — once."""
+
+    async def test_play_media_turns_an_off_receiver_on(self, modules):
+        player, served = _player(modules, state="off")
+
+        await player.async_play_media("app", TIVIMATE)
+
+        # the ensure is the ONLY service call: no volume, no toggle, and the
+        # app still launches (which is why the volume scripts are unnecessary)
+        assert served == [("switch", "turn_on", {"entity_id": SOUNDBAR})]
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+
+    async def test_turn_on_turns_an_off_receiver_on(self, modules):
+        player, served = _player(modules, state="off")
+
+        await player.async_turn_on()
+
+        assert served == [("switch", "turn_on", {"entity_id": SOUNDBAR})]
+
+    async def test_select_source_turns_an_off_receiver_on_once(self, modules):
+        """select_source dispatches internally, so the switch is read once."""
+        player, served = _player(
+            modules, state="off", app_map={TIVIMATE: "TiviMate"}
+        )
+
+        await player.async_select_source("TiviMate")
+
+        assert served == [("switch", "turn_on", {"entity_id": SOUNDBAR})]
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+
+    async def test_an_on_receiver_is_never_called(self, modules):
+        """Idempotent: every entry point may run, and NOT ONE call goes out."""
+        player, served = _player(modules, state="on")
+
+        await player.async_turn_on()
+        await player.async_play_media("app", TIVIMATE)
+        await player.async_select_source("TiviMate")
+
+        assert served == []
+
+    async def test_no_volume_service_is_ever_aimed_at_the_receiver(self, modules):
+        """The user's point: a switch receiver means no volume scripts."""
+        player, served = _player(modules, state="off")
+
+        await player.async_play_media("app", TIVIMATE)
+
+        assert [(domain, service) for domain, service, _data in served] == [
+            ("switch", "turn_on")
+        ]
+
+
+class TestAnUnusableReceiverNeverBreaksPlayback:
+    """A receiver we cannot read, or that fails, is logged — never raised."""
+
+    async def test_an_unavailable_switch_is_left_alone(self, modules):
+        player, served = _player(modules, state="unavailable")
+
+        await player.async_play_media("app", TIVIMATE)
+
+        assert served == []  # never guessed at
+        assert player._manager._protocol.launch_calls == [TIVIMATE]  # still plays
+
+    async def test_an_unknown_state_is_not_guessed_at(self, modules):
+        player, served = _player(modules, state="unknown")
+
+        await player.async_turn_on()
+
+        assert served == []
+
+    async def test_a_missing_entity_is_left_alone(self, modules):
+        player, served = _player(modules)  # the receiver is not in the machine
+
+        await player.async_play_media("app", TIVIMATE)
+
+        assert served == []
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+
+    async def test_a_failing_service_call_does_not_stop_playback(self, modules):
+        from homeassistant.exceptions import HomeAssistantError
+
+        player, _served = _player(modules, state="off")
+
+        class _BrokenServices:
+            async def async_call(self, domain, service, data=None, **kwargs):
+                raise HomeAssistantError("the switch entity is gone")
+
+        player.hass.services = _BrokenServices()
+
+        await player.async_play_media("app", TIVIMATE)  # must not raise
+
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+
+
+class TestAMediaPlayerReceiverIsUntouched:
+    """An AVR stays an AVR: input selection and enrichment, never a switch call."""
+
+    async def test_a_media_player_receiver_is_never_switched(self, modules):
+        player, served = _player(modules, receiver=AVR, state="off")
+        player.hass.states.set(AVR, "idle")
+
+        await player.async_turn_on()
+        await player.async_play_media("app", TIVIMATE)
+
+        assert served == []
+        assert player._manager._protocol.launch_calls == [TIVIMATE]
+
+    async def test_the_receiver_option_still_reaches_the_attributes(self, modules):
+        from nsh.const import ATTR_MEDIA_DAG_RECEIVER_ENTITY
+
+        player, _served = _player(modules, receiver=AVR)
+
+        assert (
+            player.extra_state_attributes[ATTR_MEDIA_DAG_RECEIVER_ENTITY] == AVR
+        )
+
+
+class TestAnIdleShieldLeavesTheReceiverAlone:
+    """Switching the receiver on is a PLAYBACK action, not a synchronisation."""
+
+    async def test_reading_state_and_attributes_calls_nothing(self, modules):
+        player, served = _player(modules, state="off")
+
+        assert player.state is not None  # a state read
+        assert isinstance(player.extra_state_attributes, dict)  # what the frontend reads
+        player._on_manager_update()  # the connection manager pushed an update
+
+        assert served == []

tests/test_release_versioning.py

@@ -0,0 +1,654 @@
+"""tests/test_release_versioning.py — the release version decision (t42).
+
+Why this file exists: the version the workflow picks decides whether HACS ever
+offers a user the update. Every wrong answer is silent — the tag and the release
+still appear, only the manifest never moves — and the real evidence is in the
+repo history: v2026.10.09 was published while master's manifest still read
+2026.10.08. The decision therefore lives in ``scripts/determine-release-version.sh``
+and every branch below is driven directly, rather than trusted to a CI run.
+
+The four scenarios the task names, plus the boundary cases that made the old
+inline shell wrong:
+
+(a) manifest version untagged            -> manifest wins (BUMP=no)
+(b) manifest tagged elsewhere, date free -> date
+(c) manifest AND date tagged             -> same-day CALVER suffix, lowest free N
+(d) the commit is already released       -> RELEASE=no, explicit no-op signal
+
+The script is also the only place that reads the clock, and it reads it in UTC.
+"""
+
+import json
+import os
+import re
+import subprocess
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+SCRIPT = REPO_ROOT / "scripts" / "determine-release-version.sh"
+WORKFLOW = REPO_ROOT / ".gitea" / "workflows" / "release.yml"
+MANIFEST = REPO_ROOT / "custom_components" / "nvidia_shield" / "manifest.json"
+
+HEAD = "a" * 40
+OTHER = "b" * 40
+TODAY = "2026.10.11"
+
+
+def _resolve(
+    tmp_path: Path,
+    *,
+    manifest_version: str,
+    tags=(),
+    today: str | None = TODAY,
+    head: str | None = HEAD,
+    env: dict | None = None,
+):
+    """Run the resolver against a fixture manifest and tag list."""
+    tmp_path.mkdir(parents=True, exist_ok=True)
+    manifest = tmp_path / "manifest.json"
+    manifest.write_text(
+        json.dumps({"domain": "nvidia_shield", "version": manifest_version}) + "\n",
+        encoding="utf-8",
+    )
+    tag_list = tmp_path / "tags"
+    tag_list.write_text(
+        "".join(f"{tag} {sha}\n" for tag, sha in tags), encoding="utf-8"
+    )
+
+    argv = [
+        "bash",
+        str(SCRIPT),
+        "--manifest",
+        str(manifest),
+        "--tags-from",
+        str(tag_list),
+    ]
+    if today is not None:
+        argv += ["--today", today]
+    if head is not None:
+        argv += ["--head", head]
+
+    result = subprocess.run(
+        argv,
+        capture_output=True,
+        text=True,
+        env={**os.environ, **(env or {})},
+        check=False,
+    )
+    values = dict(
+        line.split("=", 1) for line in result.stdout.splitlines() if "=" in line
+    )
+    return result, values
+
+
+# ── (a) the manifest wins while its version is untagged ──────────────────────
+
+
+def test_an_untagged_manifest_version_is_released_as_is(tmp_path):
+    result, values = _resolve(
+        tmp_path, manifest_version="2026.10.11", tags=[("v2026.10.09", OTHER)]
+    )
+
+    assert result.returncode == 0, result.stderr
+    assert values["VERSION"] == "2026.10.11"
+    assert values["TAG"] == "v2026.10.11"
+    assert values["SOURCE"] == "manifest"
+    assert values["RELEASE"] == "yes"
+    # the manifest already says it: no write-back commit, so the tag lands on
+    # the pushed commit itself
+    assert values["BUMP"] == "no"
+
+
+def test_a_leading_v_in_the_manifest_is_tolerated(tmp_path):
+    """The tag adds the `v`; a hand-written one must not become the version."""
+    _result, values = _resolve(tmp_path, manifest_version="v2026.10.11")
+
+    assert values["VERSION"] == "2026.10.11"
+    assert values["TAG"] == "v2026.10.11"
+
+
+# ── (b) once the manifest version is tagged, the date takes over ─────────────
+
+
+def test_a_tagged_manifest_version_falls_back_to_the_utc_date(tmp_path):
+    result, values = _resolve(
+        tmp_path, manifest_version="2026.10.09", tags=[("v2026.10.09", OTHER)]
+    )
+
+    assert result.returncode == 0, result.stderr
+    assert values["VERSION"] == TODAY
+    assert values["SOURCE"] == "date"
+    assert values["RELEASE"] == "yes"
+    # the manifest still says the old version: the workflow must write the new
+    # one back, or HACS keeps comparing against 2026.10.09 forever
+    assert values["BUMP"] == "yes"
+
+
+# ── (c) a second release in one UTC day ─────────────────────────────────────
+
+
+def test_a_tagged_date_falls_back_to_a_same_day_suffix(tmp_path):
+    result, values = _resolve(
+        tmp_path,
+        manifest_version="2026.10.09",
+        tags=[("v2026.10.09", OTHER), (f"v{TODAY}", OTHER)],
+    )
+
+    assert result.returncode == 0, result.stderr
+    assert values["VERSION"] == f"{TODAY}.2"
+    assert values["SOURCE"] == "same-day"
+    assert values["RELEASE"] == "yes"
+    assert values["BUMP"] == "yes"
+
+
+def test_the_suffix_is_the_lowest_untagged_n_from_two(tmp_path):
+    """Not "highest + 1": a gap is filled, so a failed run does not burn a number."""
+    _result, values = _resolve(
+        tmp_path,
+        manifest_version="2026.10.09",
+        tags=[
+            ("v2026.10.09", OTHER),
+            (f"v{TODAY}", OTHER),
+            (f"v{TODAY}.2", OTHER),
+        ],
+    )
+
+    assert values["VERSION"] == f"{TODAY}.3"
+
+    _result, values = _resolve(
+        tmp_path / "second",
+        manifest_version="2026.10.09",
+        tags=[
+            ("v2026.10.09", OTHER),
+            (f"v{TODAY}", OTHER),
+            (f"v{TODAY}.2", OTHER),
+            (f"v{TODAY}.3", OTHER),
+            (f"v{TODAY}.5", OTHER),  # a gap at .4 must be reused
+        ],
+    )
+
+    assert values["VERSION"] == f"{TODAY}.4"
+
+
+# ── (d) nothing to do ───────────────────────────────────────────────────────
+
+
+def test_an_already_released_commit_is_an_explicit_no_op(tmp_path):
+    """A re-run (manual dispatch, a retried job) must not invent a new version."""
+    result, values = _resolve(
+        tmp_path,
+        manifest_version="2026.10.09",
+        tags=[("v2026.10.09", HEAD)],  # this very commit is the release
+        head=HEAD,
+    )
+
+    assert result.returncode == 0, result.stderr
+    assert values["RELEASE"] == "no"
+    assert values["VERSION"] == "2026.10.09"
+    assert values["SOURCE"] == "released"
+    assert values["BUMP"] == "no"
+    assert "nothing to release" in result.stderr
+
+
+def test_a_release_is_never_planned_for_a_tag_that_exists(tmp_path):
+    """The property the backstop defends, over a spread of tag sets.
+
+    RELEASE=yes must always mean "this version is not tagged yet": that is what
+    makes the workflow's tag step safe without re-checking.
+    """
+    scenarios = [
+        ("2026.10.09", []),
+        ("2026.10.09", [("v2026.10.09", OTHER)]),
+        ("2026.10.09", [("v2026.10.09", OTHER), (f"v{TODAY}", OTHER)]),
+        ("2026.10.11", [("v2026.10.08", OTHER)]),
+        (f"{TODAY}.2", [("v2026.10.09", OTHER), (f"v{TODAY}", OTHER)]),
+        ("2026.10.09", [("v2026.10.09", HEAD)]),  # already released
+    ]
+
+    for index, (manifest_version, tags) in enumerate(scenarios):
+        _result, values = _resolve(
+            tmp_path / f"case{index}", manifest_version=manifest_version, tags=tags
+        )
+        tagged = {tag for tag, _sha in tags}
+
+        if values["RELEASE"] == "yes":
+            assert values["TAG"] not in tagged, (manifest_version, tags, values)
+        else:
+            assert values["SOURCE"] in {"released", "tagged"}
+
+
+# ── (e) UTC determinism ─────────────────────────────────────────────────────
+
+
+def test_the_date_is_utc_whatever_the_runner_timezone_is(tmp_path):
+    """A version number must not depend on where the job happened to run."""
+    tags = [("v2026.09.30", OTHER)]  # the manifest version is tagged -> date
+    runs = []
+    for timezone in ("Pacific/Kiritimati", "Etc/GMT+12", "America/Anchorage"):
+        _result, values = _resolve(
+            tmp_path / timezone.replace("/", "_"),
+            manifest_version="2026.09.30",
+            tags=tags,
+            today=None,  # exercise the real clock
+            env={"TZ": timezone},
+        )
+        runs.append(values["VERSION"])
+
+    utc_today = subprocess.run(
+        ["date", "-u", "+%Y.%m.%d"], capture_output=True, text=True, check=True
+    ).stdout.strip()
+
+    assert len(set(runs)) == 1, runs
+    assert runs[0] == utc_today
+
+
+# ── usage and error handling ────────────────────────────────────────────────
+
+
+def test_a_missing_manifest_fails_loudly(tmp_path):
+    result = subprocess.run(
+        ["bash", str(SCRIPT), "--manifest", str(tmp_path / "nope.json"), "--today", TODAY],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+
+    assert result.returncode == 1
+    assert "manifest not found" in result.stderr
+
+
+def test_a_non_calver_manifest_version_fails_loudly(tmp_path):
+    result, _values = _resolve(tmp_path, manifest_version="1.2.3")
+
+    assert result.returncode == 1
+    assert "not YYYY.MM.DD" in result.stderr
+
+
+def test_an_unknown_argument_is_a_usage_error(tmp_path):
+    result = subprocess.run(
+        ["bash", str(SCRIPT), "--nonsense"], capture_output=True, text=True, check=False
+    )
+
+    assert result.returncode == 1
+    assert "unknown argument" in result.stderr
+
+
+def test_github_output_receives_the_same_values(tmp_path):
+    """The workflow consumes $GITHUB_OUTPUT, so the script must fill it too."""
+    output = tmp_path / "github_output"
+    output.write_text("", encoding="utf-8")
+
+    result, values = _resolve(
+        tmp_path, manifest_version="2026.10.11", env={"GITHUB_OUTPUT": str(output)}
+    )
+
+    assert result.returncode == 0
+    written = dict(
+        line.split("=", 1)
+        for line in output.read_text(encoding="utf-8").splitlines()
+        if "=" in line
+    )
+    assert written == values
+    assert set(written) == {"VERSION", "TAG", "SOURCE", "BUMP", "RELEASE"}
+
+
+# ── the workflow contract (textual: the fast suite has no YAML parser) ───────
+
+
+@pytest.fixture(scope="module")
+def workflow_text() -> str:
+    return WORKFLOW.read_text(encoding="utf-8")
+
+
+def test_the_workflow_uses_the_tested_script(workflow_text):
+    assert "scripts/determine-release-version.sh" in workflow_text
+
+
+def test_the_workflow_writes_the_manifest_back_and_tags_that_commit(workflow_text):
+    # the exact commit message the task pins, with the skip-ci marker
+    assert "chore(release): v${VERSION} [skip ci]" in workflow_text
+    # the push happens before the tag, so the tag names the bumped commit
+    assert "git push origin HEAD:master" in workflow_text
+    assert 'git push origin "refs/tags/${TAG}"' in workflow_text
+
+
+def test_a_rejected_bump_push_fails_with_a_manual_instruction(workflow_text):
+    assert "could not push" in workflow_text
+    assert "bump" in workflow_text.lower() and "manually" in workflow_text.lower()
+
+
+def test_the_workflow_verifies_the_pushed_manifest_before_publishing(workflow_text):
+    assert "origin/master:${MANIFEST}" in workflow_text
+    assert "inconsistent" in workflow_text.lower()
+
+
+def test_the_bot_commit_cannot_trigger_another_release(workflow_text):
+    # two layers: the conventional skip-ci marker on the commit, and a job-level
+    # guard that re-checks the message (the guard is what must hold even if a
+    # future Gitea stops honouring the marker)
+    assert "[skip ci]" in workflow_text
+    assert "github.event.head_commit.message" in workflow_text
+    assert "workflow_dispatch" in workflow_text
+
+
+def test_the_skip_guard_matches_the_subject_not_the_whole_message(workflow_text):
+    """t44 R3: `contains(message, '[skip ci]')` skipped a release silently.
+
+    A developer commit whose BODY mentions the marker is not a release commit, so
+    the guard is anchored to the release bot's subject prefix instead.
+    """
+    assert "!startsWith(github.event.head_commit.message || '', 'chore(release):')" in (
+        workflow_text
+    )
+    assert "!contains(github.event.head_commit.message" not in workflow_text
+
+
+def test_the_release_notes_exclude_the_write_back_commit(workflow_text):
+    """t44 R1: with a write-back the tag IS the bot commit, so notes must skip it."""
+    assert 'if [ "$BUMP" = "yes" ]; then' in workflow_text
+    assert 'NOTES_END="${TAG}^"' in workflow_text
+    assert 'RANGE="${PREV}..${NOTES_END}"' in workflow_text
+    assert 'BUMP: ${{ steps.version.outputs.BUMP }}' in workflow_text
+
+
+def test_the_preserved_release_behaviour_is_still_there(workflow_text):
+    # one release at a time, never cancelled mid-flight
+    assert "group: release-master" in workflow_text
+    assert "cancel-in-progress: false" in workflow_text
+    # notes from the commit range
+    assert "git log --pretty=format" in workflow_text
+    # the 409-tolerant publish path
+    assert "409 is" in workflow_text or "409" in workflow_text
+    assert "/releases/tags/" in workflow_text
+    # the zip asset
+    assert "attachment=@${ZIP_NAME}" in workflow_text
+
+
+def test_the_script_reads_the_manifest_the_workflow_bumps():
+    """One path, so a moved manifest cannot silently release a stale version."""
+    assert MANIFEST.is_file()
+    assert "custom_components/nvidia_shield/manifest.json" in SCRIPT.read_text(
+        encoding="utf-8"
+    )
+    manifest_version = json.loads(MANIFEST.read_text(encoding="utf-8"))["version"]
+    # the script rejects anything else, so a typo here would fail every release
+    assert re.fullmatch(r"[0-9]{4}\.[0-9]{2}\.[0-9]{2}(\.[0-9]+)?", manifest_version)
+
+
+# ── t44 3c: real repositories, and the workflow's own steps by execution ─────
+
+MANIFEST_REL = "custom_components/nvidia_shield/manifest.json"
+
+
+def _git(repo, *args) -> str:
+    return subprocess.run(
+        ["git", *args], cwd=repo, capture_output=True, text=True, check=True
+    ).stdout
+
+
+def _repo(tmp_path, *, version="2026.10.09", commits=("a feature commit",)):
+    """A real repository: the resolver's tag lookups really are git commands."""
+    repo = tmp_path / "repo"
+    repo.mkdir(parents=True)
+    _git(repo, "init", "-q", "-b", "master")
+    _git(repo, "config", "user.email", "dev@example.com")
+    _git(repo, "config", "user.name", "dev")
+    manifest = repo / MANIFEST_REL
+    manifest.parent.mkdir(parents=True, exist_ok=True)
+    for index, subject in enumerate(commits):
+        manifest.write_text(
+            json.dumps(
+                {"domain": "nvidia_shield", "version": version, "note": index}
+            )
+            + "\n"
+        )
+        _git(repo, "add", "-A")
+        _git(repo, "commit", "-qm", subject)
+    return repo
+
+
+def _resolve_in(repo, *, today=TODAY):
+    """Run the resolver inside a real repo — no tag fixtures, the real git paths."""
+    result = subprocess.run(
+        ["bash", str(SCRIPT), "--manifest", MANIFEST_REL, "--today", today],
+        cwd=repo, capture_output=True, text=True, check=False,
+    )
+    values = dict(
+        line.split("=", 1) for line in result.stdout.splitlines() if "=" in line
+    )
+    return result, values
+
+
+class TestRealRepositories:
+    """The tagged-version branches against real git (t44 3c).
+
+    The fixture-based tests above never exercise `refs/tags/X^{commit}`, and that
+    dereference is the whole reason an annotated tag is recognised: for one,
+    `git rev-parse refs/tags/X` is the TAG OBJECT, not the commit, so a comparison
+    that forgot to dereference would miss a released commit entirely.
+    """
+
+    def test_an_annotated_tag_on_head_is_already_released(self, tmp_path):
+        repo = _repo(tmp_path)
+        _git(repo, "tag", "-a", "v2026.10.09", "-m", "Release v2026.10.09")
+
+        result, values = _resolve_in(repo)
+
+        assert result.returncode == 0, result.stderr
+        assert values["SOURCE"] == "released"
+        assert values["RELEASE"] == "no"
+        assert "nothing to release" in result.stderr
+        # premise: the tag object really is not the commit
+        assert _git(repo, "rev-parse", "v2026.10.09").strip() != _git(
+            repo, "rev-parse", "HEAD"
+        ).strip()
+
+    def test_a_lightweight_tag_on_head_is_also_already_released(self, tmp_path):
+        repo = _repo(tmp_path)
+        _git(repo, "tag", "v2026.10.09")
+
+        _result, values = _resolve_in(repo)
+
+        assert values["SOURCE"] == "released"
+        assert values["RELEASE"] == "no"
+
+    def test_a_tag_on_an_older_commit_falls_back_to_the_date(self, tmp_path):
+        repo = _repo(tmp_path, commits=("the released work", "later work"))
+        _git(repo, "tag", "-a", "v2026.10.09", "-m", "Release v2026.10.09", "HEAD~1")
+
+        _result, values = _resolve_in(repo)
+
+        assert values["VERSION"] == TODAY
+        assert values["SOURCE"] == "date"
+        assert values["BUMP"] == "yes"
+        assert values["RELEASE"] == "yes"
+
+    def test_no_tags_at_all_means_the_manifest_wins(self, tmp_path):
+        repo = _repo(tmp_path, version="2026.10.10")
+
+        _result, values = _resolve_in(repo)
+
+        assert values["VERSION"] == "2026.10.10"
+        assert values["SOURCE"] == "manifest"
+        assert values["BUMP"] == "no"
+
+    def test_the_same_day_scan_walks_real_tags(self, tmp_path):
+        repo = _repo(tmp_path, commits=("released", "more"))
+        for tag in ("v2026.10.09", f"v{TODAY}", f"v{TODAY}.2"):
+            _git(repo, "tag", "-a", tag, "-m", f"Release {tag}", "HEAD~1")
+
+        _result, values = _resolve_in(repo)
+
+        assert values["VERSION"] == f"{TODAY}.3"
+        assert values["SOURCE"] == "same-day"
+
+    def test_a_gap_in_the_suffixes_is_reused(self, tmp_path):
+        repo = _repo(tmp_path, commits=("released", "more"))
+        for tag in ("v2026.10.09", f"v{TODAY}", f"v{TODAY}.3"):
+            _git(repo, "tag", "-a", tag, "-m", f"Release {tag}", "HEAD~1")
+
+        _result, values = _resolve_in(repo)
+
+        assert values["VERSION"] == f"{TODAY}.2"
+
+    def test_the_guard_has_a_script_side_layer(self, tmp_path):
+        """Even with the job guard bypassed, a released commit releases nothing.
+
+        The job-level `if:` cannot be executed here (no Gitea runner), but the
+        decision it protects can: this is the layer that makes a bypass harmless.
+        """
+        repo = _repo(tmp_path)
+        _git(repo, "tag", "-a", "v2026.10.09", "-m", "Release v2026.10.09")
+        # a re-run of the same push, guard or no guard
+        for _attempt in range(2):
+            _result, values = _resolve_in(repo)
+            assert values["RELEASE"] == "no"
+            assert values["BUMP"] == "no"
+
+
+def _step_script(name: str) -> str:
+    """The `run:` body of one workflow step, read by hand.
+
+    The fast suite has no YAML parser (the verify command parses the file with
+    pyyaml instead), and executing these steps is worth more than matching their
+    text, so the block is taken verbatim and dedented.
+    """
+    lines = WORKFLOW.read_text(encoding="utf-8").splitlines()
+    start = next(i for i, line in enumerate(lines) if line.strip() == f"- name: {name}")
+    run_at = next(
+        i for i in range(start, len(lines)) if lines[i].strip() in {"run: |", "run: >-"}
+    )
+    indent = len(lines[run_at + 1]) - len(lines[run_at + 1].lstrip())
+    body = []
+    for line in lines[run_at + 1 :]:
+        if line.strip() and not line.startswith(" " * indent):
+            break
+        body.append(line[indent:] if len(line) >= indent else "")
+    return "\n".join(body)
+
+
+def _run_step(name: str, cwd, env):
+    return subprocess.run(
+        ["bash", "-euo", "pipefail", "-c", _step_script(name)],
+        cwd=cwd, capture_output=True, text=True, env={**os.environ, **env},
+    )
+
+
+class TestWorkflowStepsByExecution:
+    """Run the workflow's own steps against a bare origin (t44 3c).
+
+    Textual pins cannot tell whether the bump lands on the commit the tag names;
+    these do, and they are what the dry run in the task output was.
+    """
+
+    VERSION = "2026.10.11"
+    TAG = "v2026.10.11"
+
+    def _clone(self, tmp_path, *, protect=False):
+        origin = tmp_path / "origin.git"
+        subprocess.run(
+            ["git", "init", "--bare", "-q", "-b", "master", str(origin)], check=True
+        )
+        work = tmp_path / "work"
+        subprocess.run(["git", "clone", "-q", str(origin), str(work)], check=True)
+        _git(work, "config", "user.email", "dev@example.com")
+        _git(work, "config", "user.name", "dev")
+        manifest = work / MANIFEST_REL
+        manifest.parent.mkdir(parents=True, exist_ok=True)
+        manifest.write_text(
+            json.dumps({"domain": "nvidia_shield", "version": "2026.10.08"}) + "\n"
+        )
+        _git(work, "add", "-A")
+        _git(work, "commit", "-qm", "a feature commit")
+        _git(work, "push", "-q", "origin", "master")
+        if protect:
+            hook = origin / "hooks" / "pre-receive"
+            hook.write_text("#!/bin/sh\necho 'protected branch' >&2\nexit 1\n")
+            hook.chmod(0o755)
+        return work
+
+    def _env(self):
+        return {
+            "MANIFEST": MANIFEST_REL,
+            "VERSION": self.VERSION,
+            "TAG": self.TAG,
+        }
+
+    def test_the_bump_verify_and_tag_steps_agree_on_one_commit(self, tmp_path):
+        work = self._clone(tmp_path)
+
+        bump = _run_step("Write the version back into the manifest", work, self._env())
+        assert bump.returncode == 0, bump.stderr
+        assert _git(work, "log", "-1", "--pretty=%s").strip() == (
+            f"chore(release): {self.TAG} [skip ci]"
+        )
+
+        verify = _run_step("Verify the released manifest on master", work, self._env())
+        assert verify.returncode == 0, verify.stderr
+        assert f"matching {self.TAG}" in verify.stdout
+
+        tag = _run_step("Create tag", work, self._env())
+        assert tag.returncode == 0, tag.stderr
+
+        head = _git(work, "rev-parse", "HEAD").strip()
+        assert _git(work, "rev-parse", f"{self.TAG}^{{commit}}").strip() == head
+        tagged_manifest = json.loads(_git(work, "show", f"{self.TAG}:{MANIFEST_REL}"))
+        assert tagged_manifest["version"] == self.VERSION
+        assert _git(work, "ls-remote", "--tags", "origin", self.TAG).split()[1] == (
+            f"refs/tags/{self.TAG}"
+        )
+
+    def test_the_verify_step_refuses_an_inconsistent_manifest(self, tmp_path):
+        work = self._clone(tmp_path)
+        _run_step("Write the version back into the manifest", work, self._env())
+        # someone else's release lands on master before this one is verified
+        (work / MANIFEST_REL).write_text(
+            json.dumps({"domain": "nvidia_shield", "version": "2026.10.99"}) + "\n"
+        )
+        _git(work, "add", "-A")
+        _git(work, "commit", "-qm", "a competing release")
+        _git(work, "push", "-q", "origin", "master")
+
+        verify = _run_step("Verify the released manifest on master", work, self._env())
+
+        assert verify.returncode == 1
+        assert "inconsistent" in verify.stderr
+        assert "2026.10.99" in verify.stderr
+
+    def test_the_notes_range_describes_the_developers_commits(self, tmp_path):
+        """t44 R1, executed: the range the notes use must not open with the bot commit.
+
+        With a write-back the tag IS the bot's commit, so `PREV..TAG` (the range
+        before this fix) published "- chore(release): vX [skip ci]" as the first
+        line of every release. The range is built from ``BUMP``, and this runs both
+        halves through real git.
+        """
+        work = self._clone(tmp_path)
+        _git(work, "tag", "-a", "v2026.10.08", "-m", "previous release")
+        _git(work, "commit", "--allow-empty", "-qm", "feat: the real change")
+        _run_step("Write the version back into the manifest", work, self._env())
+        _run_step("Create tag", work, self._env())
+
+        def subjects(rev_range):
+            return _git(work, "log", "--pretty=format:- %s", rev_range)
+
+        notes_end = f"{self.TAG}^"  # BUMP=yes: the write-back commit is skipped
+        prev = _git(work, "describe", "--tags", "--abbrev=0", f"{notes_end}^").strip()
+
+        assert prev == "v2026.10.08"
+        assert subjects(f"{prev}..{notes_end}") == "- feat: the real change"
+        # ...and the range this replaced really did include the bot's own subject
+        assert "- chore(release):" in subjects(f"{prev}..{self.TAG}")
+
+    def test_a_rejected_bump_push_fails_and_tags_nothing(self, tmp_path):
+        work = self._clone(tmp_path, protect=True)
+
+        bump = _run_step("Write the version back into the manifest", work, self._env())
+
+        assert bump.returncode == 1
+        assert "could not push" in bump.stderr
+        assert "manually" in bump.stderr
+        assert MANIFEST_REL in bump.stderr
+        assert _git(work, "tag", "-l").strip() == ""

tests/test_running_apps.py

@@ -0,0 +1,40 @@
+"""Tests for the running-apps list builder (recent tasks + media sessions)."""
+
+from ha_adb_common.running_apps import running_apps_from_tasks
+
+
+def _session(package: str, playing: bool = False, title: str | None = None):
+    from ha_adb_common.media_session import MediaSessionInfo
+
+    s = MediaSessionInfo(package=package)
+    s.playing = playing
+    s.paused = not playing
+    s.title = title
+    return s
+
+
+def test_returns_none_for_fewer_than_two_tasks():
+    assert running_apps_from_tasks([]) is None
+    assert running_apps_from_tasks([{"package": "app.a"}]) is None
+
+
+def test_marks_foreground_and_defaults_to_running():
+    tasks = [{"package": "app.a"}, {"package": "app.b"}]
+    apps = running_apps_from_tasks(tasks, [], foreground_package="app.b")
+    assert apps is not None
+    assert len(apps) == 2
+    by_pkg = {a["package"]: a for a in apps}
+    assert "foreground" not in by_pkg["app.a"]
+    assert by_pkg["app.b"]["foreground"] is True
+    assert by_pkg["app.a"]["state"] == "running"
+
+
+def test_enriches_with_media_session_state():
+    tasks = [{"package": "app.a"}, {"package": "app.b"}]
+    sessions = [_session("app.a", playing=True, title="Song")]
+    apps = running_apps_from_tasks(tasks, sessions)
+    assert apps is not None
+    by_pkg = {a["package"]: a for a in apps}
+    assert by_pkg["app.a"]["state"] == "playing"
+    assert by_pkg["app.a"]["title"] == "Song"
+    assert by_pkg["app.b"]["state"] == "running"

tests/voluptuous_mirror.py

@@ -0,0 +1,94 @@
+"""A voluptuous mirror faithful enough to SEE a dropped schema default.
+
+The test environment never installs voluptuous (the config-flow tests import
+``config_flow`` against import-only stubs), so the harness has to model the two
+behaviours the flow schemas depend on:
+
+* ``Optional(field, default=value)`` / ``Required(field, default=value)`` carry
+  that default on the KEY object;
+* keys compare by FIELD NAME only — real ``voluptuous.Marker.__eq__`` is
+  ``self.schema == other`` (no class check at all), so
+  ``Optional("x") == Required("x")`` is True, and ``__hash__`` is
+  ``hash(self.schema)``. A later re-declaration of the same field therefore
+  collides with the FIRST key object, so a default added by a second
+  declaration is silently dropped.
+
+That second property is exactly how the t33 F-A discovery-prefill bug hid from
+the suite: the old stubs reduced every key to its bare string, so a schema
+whose host key carried no default looked identical to one that carried the
+discovered address. ``TestVoluptuousMirrorContract`` in
+``tests/test_config_flow_ux.py`` pins both properties so the harness itself
+cannot regress into blindness.
+"""
+
+from __future__ import annotations
+
+UNDEFINED = object()
+"""Sentinel for "this key declares no default" (real ``voluptuous.UNDEFINED``)."""
+
+
+class Marker:
+    """Stand-in for ``voluptuous.Marker`` (the ``Required``/``Optional`` base)."""
+
+    def __init__(self, schema, default=UNDEFINED):
+        self.schema = schema
+        self.default = default
+
+    def __hash__(self):
+        # real Marker hashes the field name only
+        return hash(self.schema)
+
+    def __eq__(self, other):
+        # real Marker.__eq__ is `self.schema == other`: the FIELD is the whole
+        # comparison — no class check, so Optional("x") == Required("x") (and
+        # even Marker("x") == "x") is True. That is what makes a re-declaration
+        # of a field collide with the first key object and drop its default.
+        return self.schema == other
+
+    def __repr__(self):
+        return f"<{type(self).__name__} {self.schema!r} default={self.default!r}>"
+
+
+class Required(Marker):
+    """Stand-in for ``voluptuous.Required``."""
+
+
+class Optional(Marker):
+    """Stand-in for ``voluptuous.Optional``."""
+
+
+def install(vol) -> None:
+    """Wire the mirror onto a stub ``voluptuous`` module object."""
+    vol.UNDEFINED = UNDEFINED
+    vol.Marker = Marker
+    vol.Required = Required
+    vol.Optional = Optional
+    vol.Schema = lambda schema: schema
+
+
+def defaults_by_key(schema_dict) -> dict:
+    """``{field: default}`` for a schema declared with mirror keys."""
+    return {key.schema: key.default for key in declared_keys(schema_dict)}
+
+
+def declared_keys(schema_dict) -> list:
+    """The schema's marker keys, in declaration order.
+
+    Raises on a non-marker key: a bare string key means the harness (or the
+    code under test) lost the KEY structure this mirror exists to check.
+    Test-harness bookkeeping keys (``__suggested__`` and friends) are skipped.
+    """
+    keys = []
+    for key in schema_dict:
+        if isinstance(key, Marker):
+            keys.append(key)
+            continue
+        if isinstance(key, str) and key.startswith("__"):
+            continue
+        raise AssertionError(f"schema key {key!r} is not a voluptuous marker")
+    return keys
+
+
+def declared_fields(schema_dict) -> list:
+    """The field names of a schema, in declaration order."""
+    return [key.schema for key in declared_keys(schema_dict)]