> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase36-session05-sector-theme-audio-pack/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase36-session05-sector-theme-audio-pack` **Started**: 2026-06-28 18:09 **Last Updated**: 2026-06-28 18:52

***

## Session Progress

| Metric              | Value   |
| ------------------- | ------- |
| Tasks Completed     | 20 / 20 |
| Estimated Remaining | 0 hours |
| Blockers            | 0       |

***

## Task Log

### 2026-06-28 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed
* [x] Tools available
* [x] Directory structure ready

***

### Task T001 - Verify Session 04 routing contract, reserved basenames, media policy, and absence of preexisting final theme ambience files

**Started**: 2026-06-28 18:07 **Completed**: 2026-06-28 18:10 **Duration**: 3 minutes

**Notes**:

* Confirmed Session 04 completed the low-gain theme ambience routing contract and explicitly assigned final ambience file generation to Session 05.
* Confirmed the exact reserved route IDs and file basenames are `theme_cold_cache_ambience`, `theme_corrupted_index_ambience`, `theme_kernel_core_ambience`, `theme_firewall_ambience`, and `theme_model_vault_ambience`.
* Confirmed `docs/media-policy.md` requires final theme ambience loops under `src/assets/ai-rogue/audio/music/` as 48 kHz stereo Ogg Opus loops under the 900 KB AI Rogue music cap.
* Confirmed no preexisting final `theme_*_ambience.ogg` files were present before implementation.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Created the session implementation ledger and recorded routing/media-policy inspection evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T001 complete and added the progress summary table.

**Verification**:

* Command/check: `sed -n '1,260p' .spec_system/PRD/phase_36/session_04_theme_audio_routing_contract.md`
  * Result: PASS - Session 04 status is Complete and lists the five route IDs plus Session 05 final asset ownership.
  * Evidence: The routing decision keeps depth music and adds a low-gain ambience lane keyed by `snapshot.theme`.
* Command/check: `sed -n '1,260p' docs/media-policy.md`
  * Result: PASS - Theme ambience uses the music workflow, `audio/music/` location, 48 kHz stereo Ogg Opus format, and 900 KB cap.
  * Evidence: Media policy includes the Game theme ambience row and AI Rogue theme ambience workflow paragraph.
* Command/check: `find src/assets/ai-rogue/audio/music -maxdepth 1 -type f -printf '%f %s\n' | sort`
  * Result: PASS - The music directory contained only six existing music tracks and `provenance.json`.
  * Evidence: No `theme_*_ambience.ogg` files were listed.
* UI product-surface check: N/A - Inspection task only; no user-facing UI changed.
* UI craft check: N/A - Inspection task only; no user-facing UI changed.

**BQC Fixes**:

* None - Inspection task only.

***

### Task T002 - Inspect current music asset glob, theme ambience basename map, e2e audio proof, and music provenance schema before adding assets

**Started**: 2026-06-28 18:10 **Completed**: 2026-06-28 18:12 **Duration**: 2 minutes

**Notes**:

* Confirmed `audio.ts` eagerly maps `src/assets/ai-rogue/audio/music/*.ogg` through Vite `?url` imports and builds `THEME_AMBIENCE_URLS` from `AI_ROGUE_THEME_AMBIENCE_FILE_BASENAMES`.
* Confirmed `themeAmbienceForTheme()` exhaustively maps all five `AiRogueSectorThemeId` values to the Session 04 route IDs.
* Confirmed current unit coverage already exercises fallback, queued playback, duplicate prevention, dispose cleanup, mute, music volume, missing URLs, and decode failures for theme ambience.
* Identified the e2e proof gap: `tests/e2e/ai-rogue-runtime.spec.ts` still injects two test-only theme URLs and lists only two theme ambience basenames.
* Confirmed `provenance.json` currently records top-level music pack metadata and a `tracks` array with source, edit, render, and final file fields.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Added inspection findings and proof gap.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T002 complete and updated progress.

**Verification**:

* Command/check: `sed -n '1,760p' src/extensions/ai-rogue/runtime/audio.ts`
  * Result: PASS - Music and theme ambience URL lookup already use the committed music asset glob and declared basenames.
  * Evidence: `MUSIC_URL_MODULES`, `AI_ROGUE_THEME_AMBIENCE_FILE_BASENAMES`, and `urlsForThemeAmbience()` are present.
* Command/check: `sed -n '880,930p' src/extensions/ai-rogue/runtime/audio.ts`
  * Result: PASS - `themeAmbienceForTheme()` covers all five sector themes.
  * Evidence: The switch returns one stable route per theme and has a `never` fallback helper.
* Command/check: `sed -n '1,760p' tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - Existing browser proof covers the audio pack but still injects two theme ambience URLs.
  * Evidence: `AI_ROGUE_THEME_AMBIENCE_BASENAMES` contains two entries and the proof calls `__setAiRogueThemeAmbienceUrlsForTests()`.
* Command/check: `sed -n '1,260p' src/assets/ai-rogue/audio/music/provenance.json`
  * Result: PASS - Provenance schema is a top-level music pack object with per-track `rawFile`, `edit`, and `render` entries.
  * Evidence: Six current music tracks use the same fields needed for five theme ambience entries.
* UI product-surface check: N/A - Inspection task only; no user-facing UI changed.
* UI craft check: N/A - Inspection task only; no user-facing UI changed.

**BQC Fixes**:

* None - Inspection task only; BQC contract-alignment risk was recorded for the e2e proof change.

***

### Task T003 - Create implementation notes for generation choices, provenance evidence, browser review, and validation commands

**Started**: 2026-06-28 18:12 **Completed**: 2026-06-28 18:14 **Duration**: 2 minutes

**Notes**:

* Added durable sections for generation choices, provenance evidence, browser review findings, validation commands, blockers, and design decisions.
* Kept browser review diagnostics in implementation notes instead of adding runtime telemetry to the AI Rogue Play product surface.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Added session evidence scaffolding.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T003 complete and updated progress.

**Verification**:

* Command/check: `sed -n '1,220p' .spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md`
  * Result: PASS - Implementation notes now contain setup evidence and dedicated sections for the remaining session evidence.
  * Evidence: Sections for generation choices, provenance evidence, browser review findings, and validation commands are present below this task log.
* UI product-surface check: PASS - No route/component changed; diagnostics are confined to spec notes.
* UI craft check: N/A - No visual UI changed.

**BQC Fixes**:

* Product surface discipline: Kept proof and review diagnostics in session notes rather than adding visible runtime/debug panels.

***

## Generation Choices

| Theme           | Route ID                         | Planned Bed Identity                                          | Scratch Master                                                   | Final Asset                                                          |
| --------------- | -------------------------------- | ------------------------------------------------------------- | ---------------------------------------------------------------- | -------------------------------------------------------------------- |
| Cold Cache      | `theme_cold_cache_ambience`      | Coolant hum, slow cold resonance, restrained high shimmer     | `tmp/ai-rogue-theme-ambience/theme_cold_cache_ambience.wav`      | `src/assets/ai-rogue/audio/music/theme_cold_cache_ambience.ogg`      |
| Corrupted Index | `theme_corrupted_index_ambience` | Glitch bed, unstable data tones, narrow pulsing texture       | `tmp/ai-rogue-theme-ambience/theme_corrupted_index_ambience.wav` | `src/assets/ai-rogue/audio/music/theme_corrupted_index_ambience.ogg` |
| Kernel Core     | `theme_kernel_core_ambience`     | Drive hum, overclocked core movement, low mechanical pressure | `tmp/ai-rogue-theme-ambience/theme_kernel_core_ambience.wav`     | `src/assets/ai-rogue/audio/music/theme_kernel_core_ambience.ogg`     |
| Firewall        | `theme_firewall_ambience`        | Distant alarm pulse, ember pressure, restrained warning bed   | `tmp/ai-rogue-theme-ambience/theme_firewall_ambience.wav`        | `src/assets/ai-rogue/audio/music/theme_firewall_ambience.ogg`        |
| Model Vault     | `theme_model_vault_ambience`     | Sub-bass vault room, locked archive resonance, slow pressure  | `tmp/ai-rogue-theme-ambience/theme_model_vault_ambience.wav`     | `src/assets/ai-rogue/audio/music/theme_model_vault_ambience.ogg`     |

***

### Task T004 - Create a local repeatable theme ambience generation script with exit-code handling, scratch output, final output, and no credential requirement

**Started**: 2026-06-28 18:14 **Completed**: 2026-06-28 18:17 **Duration**: 3 minutes

**Notes**:

* Added `scripts/generate-ai-rogue-theme-ambience.ts`.
* The script uses only local `ffmpeg` and `ffprobe`; it does not load `.env.local`, API keys, network APIs, or credentials.
* Raw WAV masters are written to a configurable scratch directory, defaulting to gitignored `tmp/ai-rogue-theme-ambience/`.
* Final runtime Ogg Opus files are written to `src/assets/ai-rogue/audio/music/` by default.
* `runCommand()` throws on nonzero command exits, and `main().catch()` reports the failure and exits with code 1.
* The script writes `render-report.json` with output format, raw working directory, source prompt, edit settings, and render stats.

**Files Changed**:

* `scripts/generate-ai-rogue-theme-ambience.ts` - Added repeatable local generation and optimization script.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded generator evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T004 complete and updated progress.

**Verification**:

* Command/check: `bun run scripts/generate-ai-rogue-theme-ambience.ts --only=theme_cold_cache_ambience --scratch-dir=tmp/ai-rogue-theme-ambience-smoke --final-dir=tmp/ai-rogue-theme-ambience-smoke/final`
  * Result: PASS - The generator rendered a scratch WAV, encoded a final Ogg Opus file, and wrote a render report without credentials.
  * Evidence: `tmp/ai-rogue-theme-ambience-smoke/render-report.json` reports `theme_cold_cache_ambience.ogg` as 140196 bytes, 16.0065s, opus, 2 channels, 48000 Hz.
* Command/check: `sed -n '1,220p' tmp/ai-rogue-theme-ambience-smoke/render-report.json`
  * Result: PASS - Smoke report includes generator path, output format, raw working directory, prompt, edit settings, and render stats.
  * Evidence: Report lists `scripts/generate-ai-rogue-theme-ambience.ts` and `Ogg Opus, stereo, 48000 Hz`.
* Command/check: `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`
  * Result: FAIL - The configured scripts typecheck currently fails on existing DOM audio globals imported into the script graph.
  * Evidence: Remaining errors are `GainNode`, `AudioBufferSourceNode`, `AudioContext`, `AudioBuffer`, and `window` in `src/extensions/ai-rogue/runtime/audio.ts`; the generator-specific readonly-array error found during first check was fixed.
* UI product-surface check: N/A - Script task only; no user-facing UI changed.
* UI craft check: N/A - Script task only; no user-facing UI changed.

**BQC Fixes**:

* Failure path completeness: Added explicit nonzero command handling and top-level error-to-exit-code handling in the generator.
* External dependency resilience: Kept generation local to installed `ffmpeg`/`ffprobe` and avoided credential or network dependencies.

***

### Task T005 - Define five theme bed source specs for coolant hum, corrupted index glitch bed, firewall alarm bed, vault sub-bass, and kernel core drive

**Started**: 2026-06-28 18:17 **Completed**: 2026-06-28 18:18 **Duration**: 1 minute

**Notes**:

* Added five typed `THEME_AMBIENCE_SPECS` entries to the generator.
* Each spec has the exact Session 04 route ID, a product-facing label, a source prompt, 16 second duration, and layered tone/tremolo parameters.
* Source specs intentionally produce subtle ambience beds rather than replacement music loops.

**Files Changed**:

* `scripts/generate-ai-rogue-theme-ambience.ts` - Added five theme source specs and synthesis layers.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded source-spec evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T005 complete and updated progress.

**Verification**:

* Command/check: `rg -n "theme_(cold_cache|corrupted_index|kernel_core|firewall|model_vault)_ambience|Coolant|Corrupted Index|Kernel Core|Firewall|Model Vault|frequency|prompt" scripts/generate-ai-rogue-theme-ambience.ts`
  * Result: PASS - All five route IDs, labels, prompts, and source layer definitions are present.
  * Evidence: Matches show the five specs and their frequency/tremolo source layers.
* Command/check: `bun run scripts/generate-ai-rogue-theme-ambience.ts --only=theme_cold_cache_ambience --scratch-dir=tmp/ai-rogue-theme-ambience-smoke --final-dir=tmp/ai-rogue-theme-ambience-smoke/final`
  * Result: PASS - The source spec can render through the generator without credentials.
  * Evidence: Smoke report lists the Cold Cache prompt and render stats.
* UI product-surface check: N/A - Script/source-spec task only; no user-facing UI changed.
* UI craft check: N/A - Script/source-spec task only; no user-facing UI changed.

**BQC Fixes**:

* Contract alignment: Typed the generator spec IDs to the five declared Session 04 theme ambience route IDs.

***

### Task T006 - Generate raw scratch masters without committing raw exports

**Started**: 2026-06-28 18:18 **Completed**: 2026-06-28 18:20 **Duration**: 2 minutes

**Notes**:

* Ran the full theme ambience generator.
* Generated five raw WAV masters under `tmp/ai-rogue-theme-ambience/`.
* Confirmed raw masters remain in gitignored scratch space and are not tracked.

**Files Changed**:

* `tmp/ai-rogue-theme-ambience/theme_cold_cache_ambience.wav` - Generated raw scratch master, gitignored.
* `tmp/ai-rogue-theme-ambience/theme_corrupted_index_ambience.wav` - Generated raw scratch master, gitignored.
* `tmp/ai-rogue-theme-ambience/theme_kernel_core_ambience.wav` - Generated raw scratch master, gitignored.
* `tmp/ai-rogue-theme-ambience/theme_firewall_ambience.wav` - Generated raw scratch master, gitignored.
* `tmp/ai-rogue-theme-ambience/theme_model_vault_ambience.wav` - Generated raw scratch master, gitignored.
* `tmp/ai-rogue-theme-ambience/render-report.json` - Generated scratch render report, gitignored.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded raw generation evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T006 complete and updated progress.

**Verification**:

* Command/check: `bun run scripts/generate-ai-rogue-theme-ambience.ts`
  * Result: PASS - The full generator rendered all five raw masters and encoded all five final Ogg Opus files.
  * Evidence: Command output listed raw and final rendering for each theme and wrote `tmp/ai-rogue-theme-ambience/render-report.json`.
* Command/check: `find tmp/ai-rogue-theme-ambience -maxdepth 1 -type f -printf '%f %s\n' | sort`
  * Result: PASS - Five raw WAV masters and the render report exist in scratch.
  * Evidence: Each raw WAV is 3072078 bytes; `render-report.json` is 3912 bytes.
* Command/check: `git status --short tmp/ai-rogue-theme-ambience`
  * Result: PASS - No scratch files appear in git status.
  * Evidence: Command returned no tracked or untracked entries because `tmp/` is gitignored.
* UI product-surface check: N/A - Asset generation task only; no user-facing UI changed.
* UI craft check: N/A - Asset generation task only; no user-facing UI changed.

**BQC Fixes**:

* None - Scratch asset generation only.

***

### Task T007 - Render normalized 48 kHz stereo Ogg Opus loops to the exact Session 04 basenames

**Started**: 2026-06-28 18:20 **Completed**: 2026-06-28 18:21 **Duration**: 1 minute

**Notes**:

* Generated `theme_cold_cache_ambience.ogg` at the exact Session 04 basename.
* The file is a committed runtime asset candidate under the AI Rogue music directory and remains below the 900 KB music cap.

**Files Changed**:

* `src/assets/ai-rogue/audio/music/theme_cold_cache_ambience.ogg` - Added final Cold Cache ambience loop.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded Cold Cache render evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T007 complete and updated progress.

**Verification**:

* Command/check: `stat -c '%n %s' src/assets/ai-rogue/audio/music/theme_cold_cache_ambience.ogg`
  * Result: PASS - Final Cold Cache file is present and under the 900 KB music cap.
  * Evidence: Size is 140196 bytes.
* Command/check: `ffprobe -v error -show_entries stream=codec_name,channels,sample_rate:format=duration -of json src/assets/ai-rogue/audio/music/theme_cold_cache_ambience.ogg`
  * Result: PASS - File is Ogg Opus, stereo, 48 kHz, and about 16 seconds.
  * Evidence: `codec_name` is `opus`, `channels` is 2, `sample_rate` is `48000`, `duration` is `16.006500`.
* Command/check: `git status --short src/assets/ai-rogue/audio/music/theme_cold_cache_ambience.ogg`
  * Result: PASS - Git sees the final runtime asset as a new file.
  * Evidence: Status is `?? src/assets/ai-rogue/audio/music/theme_cold_cache_ambience.ogg`.
* UI product-surface check: N/A - Binary asset task only; browser product-surface checks are scheduled for T018/T019.
* UI craft check: N/A - Binary asset task only; browser review is scheduled for T019.

**BQC Fixes**:

* Contract alignment: Final file basename matches the Session 04 route ID exactly.

***

### Task T008 - Commit the remaining four optimized theme ambience loops with file names matching the route contract

**Started**: 2026-06-28 18:21 **Completed**: 2026-06-28 18:22 **Duration**: 1 minute

**Notes**:

* Generated the remaining four final theme ambience loops at the exact Session 04 basenames.
* All four files are Ogg Opus, stereo, 48 kHz, about 16 seconds, and well below the 900 KB music cap.

**Files Changed**:

* `src/assets/ai-rogue/audio/music/theme_corrupted_index_ambience.ogg` - Added final Corrupted Index ambience loop.
* `src/assets/ai-rogue/audio/music/theme_kernel_core_ambience.ogg` - Added final Kernel Core ambience loop.
* `src/assets/ai-rogue/audio/music/theme_firewall_ambience.ogg` - Added final Firewall ambience loop.
* `src/assets/ai-rogue/audio/music/theme_model_vault_ambience.ogg` - Added final Model Vault ambience loop.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded remaining final asset evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T008 complete and updated progress.

**Verification**:

* Command/check: `for file in src/assets/ai-rogue/audio/music/theme_corrupted_index_ambience.ogg src/assets/ai-rogue/audio/music/theme_kernel_core_ambience.ogg src/assets/ai-rogue/audio/music/theme_firewall_ambience.ogg src/assets/ai-rogue/audio/music/theme_model_vault_ambience.ogg; do size=$(stat -c%s "$file"); probe=$(ffprobe -v error -show_entries stream=codec_name,channels,sample_rate:format=duration -of csv=p=0 "$file"); printf '%s %s %s\n' "$file" "$size" "$probe"; done`
  * Result: PASS - All four remaining final files are present, optimized, and below the 900 KB cap.
  * Evidence: Corrupted Index is 159650 bytes, Kernel Core is 144865 bytes, Firewall is 150857 bytes, and Model Vault is 141674 bytes; each reports `opus,48000,2` and duration `16.006500`.
* Command/check: `git status --short src/assets/ai-rogue/audio/music/theme_corrupted_index_ambience.ogg src/assets/ai-rogue/audio/music/theme_kernel_core_ambience.ogg src/assets/ai-rogue/audio/music/theme_firewall_ambience.ogg src/assets/ai-rogue/audio/music/theme_model_vault_ambience.ogg`
  * Result: PASS - Git sees all four final runtime assets as new files.
  * Evidence: All four paths are listed with `??`.
* UI product-surface check: N/A - Binary asset task only; browser product-surface checks are scheduled for T018/T019.
* UI craft check: N/A - Binary asset task only; browser review is scheduled for T019.

**BQC Fixes**:

* Contract alignment: Final file basenames match all remaining declared Session 04 route IDs exactly.

***

### Task T009 - Update music provenance with source prompts, raw scratch paths, render stats, durations, bytes, codec, channel count, and sample rate for all five loops

**Started**: 2026-06-28 18:22 **Completed**: 2026-06-28 18:25 **Duration**: 3 minutes

**Notes**:

* Added theme ambience workflow metadata to `provenance.json`.
* Added five per-theme provenance entries with source prompts, raw scratch paths, final file names, edit settings, and render stats.
* Preserved existing Suno music provenance while clarifying that theme ambience is local procedural synthesis.

**Files Changed**:

* `src/assets/ai-rogue/audio/music/provenance.json` - Added local theme ambience workflow metadata and five track entries.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded provenance evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T009 complete and updated progress.

**Verification**:

* Command/check: `jq '.tracks | length' src/assets/ai-rogue/audio/music/provenance.json`
  * Result: PASS - Provenance JSON parses and now contains 11 total tracks.
  * Evidence: Output was `11`.
* Command/check: `jq -r '.tracks[] | select(.id | startswith("theme_")) | [.id, .rawFile, .finalFile, .render.outputBytes, .render.durationSeconds, .render.codec, .render.channels, .render.sampleRate] | @tsv' src/assets/ai-rogue/audio/music/provenance.json`
  * Result: PASS - All five theme ambience entries include raw path, final file, bytes, duration, codec, channel count, and sample rate.
  * Evidence: Entries list 140196, 159650, 144865, 150857, and 141674 bytes; all are `opus`, 2 channels, `48000`.
* Command/check: `jq -e '.themeAmbienceGenerator == "scripts/generate-ai-rogue-theme-ambience.ts" and ([.tracks[] | select(.id | startswith("theme_"))] | length == 5)' src/assets/ai-rogue/audio/music/provenance.json`
  * Result: PASS - Top-level generator metadata and five theme entries are present.
  * Evidence: Output was `true`.
* UI product-surface check: N/A - Provenance metadata task only; no user-facing UI changed.
* UI craft check: N/A - Provenance metadata task only; no user-facing UI changed.

**BQC Fixes**:

* Contract alignment: Provenance final filenames and track IDs match the five runtime route basenames.

***

### Task T010 - Verify or minimally repair real-file theme ambience lookup with types matching the declared route contract and exhaustive enum handling

**Started**: 2026-06-28 18:25 **Completed**: 2026-06-28 18:27 **Duration**: 2 minutes

**Notes**:

* Verified the committed file basenames match `AI_ROGUE_THEME_AMBIENCE_FILE_BASENAMES`.
* Verified `THEME_AMBIENCE_URLS` is built from the existing Vite music asset glob and the declared theme ambience basename map.
* Verified `themeAmbienceForTheme()` remains exhaustive for all five sector themes.
* No runtime repair was needed.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded real-file lookup verification.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T010 complete and updated progress.

**Verification**:

* Command/check: `for id in theme_cold_cache_ambience theme_corrupted_index_ambience theme_kernel_core_ambience theme_firewall_ambience theme_model_vault_ambience; do test -f "src/assets/ai-rogue/audio/music/$id.ogg" && rg -q "$id" src/extensions/ai-rogue/runtime/audio.ts && printf '%s PASS\n' "$id"; done`
  * Result: PASS - Every declared ambience route has a matching committed file and appears in the runtime basename contract.
  * Evidence: All five route IDs printed `PASS`.
* Command/check: `rg -n "AI_ROGUE_THEME_AMBIENCE_FILE_BASENAMES|themeAmbienceForTheme|case \"cold-cache\"|case \"corrupted-index\"|case \"kernel-core\"|case \"firewall\"|case \"model-vault\"|MUSIC_URL_MODULES|THEME_AMBIENCE_URLS" src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/runtime/themes.ts`
  * Result: PASS - The runtime glob, theme ambience URL lookup, and exhaustive theme resolver are present.
  * Evidence: Matches show `MUSIC_URL_MODULES`, `THEME_AMBIENCE_URLS`, `urlsForThemeAmbience()`, and all five resolver cases.
* UI product-surface check: N/A - Runtime verification task only; browser product-surface checks are scheduled for T018/T019.
* UI craft check: N/A - No visual UI changed.

**BQC Fixes**:

* Contract alignment: Verified runtime route IDs, committed basenames, and exhaustive theme handling match the Session 04 contract.

***

### Task T011 - Extend browser audio proof to fetch and source-start all five real theme ambience assets without injected URL overrides

**Started**: 2026-06-28 18:27 **Completed**: 2026-06-28 18:30 **Duration**: 3 minutes

**Notes**:

* Updated `AI_ROGUE_THEME_AMBIENCE_BASENAMES` in the Playwright proof from two entries to all five Session 04 route basenames.
* Removed the test-only `__setAiRogueThemeAmbienceUrlsForTests()` override from the browser proof path.
* Updated the in-browser proof loop to call `themeAmbienceForTheme()` for all five sector themes and wait for each real route URL to fetch and source-start.
* Preserved silent fallback, page-error, failed-request, desktop, and mobile assertions for the same proof.

**Files Changed**:

* `tests/e2e/ai-rogue-runtime.spec.ts` - Extended browser audio proof to all five real theme ambience assets without URL injection.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded e2e proof update evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T011 complete and updated progress.

**Verification**:

* Command/check: `rg -n "__setAiRogueThemeAmbienceUrlsForTests|AI_ROGUE_THEME_AMBIENCE_BASENAMES|themeSequence|was not fetched|source was not started" tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - The e2e proof no longer contains the test URL override and now includes all five route basenames plus per-route fetch/start waits.
  * Evidence: Matches show the five-name basename array and `themeSequence`; no override match is present.
* Command/check: `sed -n '300,570p' tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - The proof imports `createAiRogueAudioEngine` and `themeAmbienceForTheme`, then plays all five themes through real runtime lookup.
  * Evidence: The page-evaluate proof waits for each route URL and source start before silent-fallback checks.
* UI product-surface check: N/A - Test-only diagnostics changed; no normal product route copy or runtime debug panel was added.
* UI craft check: N/A - No visual UI changed.

**BQC Fixes**:

* Contract alignment: Browser proof now covers all five declared route IDs against committed runtime asset lookup.
* Failure path completeness: Per-route waits fail with a route-specific message if any real theme asset does not fetch or source-start.
* Product surface discipline: Proof instrumentation remains confined to Playwright and hidden init-script state.

***

### Task T012 - Update AI Rogue game-feel docs from reserved theme ambience contract to shipped asset pack with playback, fallback, and review notes

**Started**: 2026-06-28 18:30 **Completed**: 2026-06-28 18:33 **Duration**: 3 minutes

**Notes**:

* Updated the durable game-feel audio contract from reserved Session 05 theme ambience basenames to the shipped five-loop pack.
* Documented the committed filenames, local generation path, provenance location, playback behavior, fallback behavior, and review expectations.
* Kept final human listening sign-off scoped to Session 08 while noting the Session 05 browser proof and manual review expectations.

**Files Changed**:

* `docs/extensions/ai-rogue/game-feel.md` - Updated theme ambience asset contract and added Session 05 result notes.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded documentation evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T012 complete and updated progress.

**Verification**:

* Command/check: `rg -n "Theme ambience: five|Session 05 Sector Theme Ambience Result|theme_cold_cache_ambience|Playback notes|Review notes|Missing ambience assets" docs/extensions/ai-rogue/game-feel.md`
  * Result: PASS - Game-feel docs now describe shipped theme ambience assets, playback notes, fallback notes, and review notes.
  * Evidence: Matches show the updated Theme ambience asset bullet, shipped file names, Session 05 result section, playback notes, and review notes.
* UI product-surface check: N/A - Documentation task only; no user-facing route changed.
* UI craft check: N/A - Documentation task only; no visual UI changed.

**BQC Fixes**:

* Product surface discipline: Documentation keeps proof/review detail out of the normal AI Rogue Play surface.

***

### Task T013 - Update media policy or session stub evidence so final theme ambience size and provenance rules are current

**Started**: 2026-06-28 18:33 **Completed**: 2026-06-28 18:35 **Duration**: 2 minutes

**Notes**:

* Updated the Phase 36 Session 05 stub from `Not Started` to `In Progress`.
* Marked Session 04 contract and selected asset policy prerequisites complete.
* Added implementation evidence with delivered filenames, byte counts, duration, format, provenance location, and real-browser-proof scope.
* Left final validation ownership in implementation notes because testing tasks are still in progress.

**Files Changed**:

* `.spec_system/PRD/phase_36/session_05_sector_theme_audio_pack.md` - Added current delivered asset and provenance evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded session stub evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T013 complete and updated progress.

**Verification**:

* Command/check: `rg -n "Status|Session 04 theme|Selected asset|Implementation Evidence|theme_cold_cache_ambience|provenance.json|Browser proof" .spec_system/PRD/phase_36/session_05_sector_theme_audio_pack.md`
  * Result: PASS - The session stub now records active status, completed prerequisites, implementation evidence, delivered files, provenance, and browser proof scope.
  * Evidence: Matches show `Status`, prerequisite checkboxes, `Implementation Evidence`, `theme_cold_cache_ambience.ogg`, `provenance.json`, and browser proof text.
* UI product-surface check: N/A - Spec documentation task only; no user-facing route changed.
* UI craft check: N/A - Documentation task only; no visual UI changed.

**BQC Fixes**:

* None - Spec documentation task only.

***

### Task T014 - Run focused runtime audio, adapter, and theme tests after asset and proof changes

**Started**: 2026-06-28 18:35 **Completed**: 2026-06-28 18:37 **Duration**: 2 minutes

**Notes**:

* Ran focused audio, renderer adapter, and theme unit tests.
* Initial run exposed a stale unit fixture: the missing-theme-URL test relied on `theme_model_vault_ambience` being absent, but the file now exists.
* Repaired the test to simulate a missing URL through `__setAiRogueThemeAmbienceUrlsForTests({ theme_model_vault_ambience: [] })`, preserving fallback coverage without depending on an absent committed asset.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts` - Updated missing theme URL fallback test to use an explicit empty test override.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded focused test evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T014 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-audio-adapter.test.ts src/extensions/ai-rogue/runtime/__tests__/themes.test.ts`
  * Result: FAIL then PASS - First run failed one stale missing-URL fixture; after the repair, all focused tests passed.
  * Evidence: Final run reported 3 test files passed and 30 tests passed.
* UI product-surface check: N/A - Unit test task only; no user-facing route changed.
* UI craft check: N/A - No visual UI changed.

**BQC Fixes**:

* Failure path completeness: Preserved missing theme ambience URL fallback coverage after final assets were added.

***

### Task T015 - Run TypeScript validation for changed script, test, and runtime imports

**Started**: 2026-06-28 18:37 **Completed**: 2026-06-28 18:40 **Duration**: 3 minutes

**Notes**:

* App TypeScript validation passed.
* Script TypeScript validation initially failed because the script graph imports AI Rogue browser runtime code, but `tsconfig.scripts.json` did not include DOM libraries for Web Audio and `window` globals.
* Added `DOM` to `tsconfig.scripts.json` `lib` so script typechecking can validate script imports that transitively include browser runtime modules.
* Script TypeScript validation passed after the config fix.

**Files Changed**:

* `tsconfig.scripts.json` - Added `DOM` to script TypeScript libraries.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded TypeScript validation evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T015 complete and updated progress.

**Verification**:

* Command/check: `bunx tsc --noEmit -p tsconfig.json --pretty false`
  * Result: PASS - App/runtime/test TypeScript validation passed.
  * Evidence: Command exited 0 with no output.
* Command/check: `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false`
  * Result: FAIL then PASS - Initial failure was missing DOM globals in the script config; after adding `DOM`, validation passed.
  * Evidence: Final command exited 0 with no output.
* UI product-surface check: N/A - TypeScript config validation task only; no user-facing route changed.
* UI craft check: N/A - No visual UI changed.

**BQC Fixes**:

* Contract alignment: Script typechecking now supports browser-runtime imports used by local scripts and validates the new generator in the same configured script graph.

***

### Task T016 - Run ffprobe verification for all five final ambience loops and record codec, channel, sample-rate, duration, and byte evidence

**Started**: 2026-06-28 18:40 **Completed**: 2026-06-28 18:41 **Duration**: 1 minute

**Notes**:

* Ran dedicated `ffprobe` verification for all five final theme ambience loops.
* Confirmed every file is Opus, stereo, 48 kHz, about 16 seconds, and below the 900 KB cap.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded ffprobe verification evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T016 complete and updated progress.

**Verification**:

* Command/check: `for file in src/assets/ai-rogue/audio/music/theme_cold_cache_ambience.ogg src/assets/ai-rogue/audio/music/theme_corrupted_index_ambience.ogg src/assets/ai-rogue/audio/music/theme_kernel_core_ambience.ogg src/assets/ai-rogue/audio/music/theme_firewall_ambience.ogg src/assets/ai-rogue/audio/music/theme_model_vault_ambience.ogg; do bytes=$(stat -c%s "$file"); ffprobe -v error -show_entries stream=codec_name,channels,sample_rate:format=duration -of json "$file" | jq -c --arg file "$file" --argjson bytes "$bytes" '{file: $file, bytes: $bytes, codec: .streams[0].codec_name, channels: .streams[0].channels, sampleRate: .streams[0].sample_rate, duration: .format.duration}'; done`
  * Result: PASS - All five final files report expected codec, channels, sample rate, duration, and byte counts.
  * Evidence: Each JSON line reports `codec` `opus`, `channels` 2, `sampleRate` `48000`, `duration` `16.006500`, and byte counts from 140196 to 159650.
* UI product-surface check: N/A - Media verification task only; no user-facing route changed.
* UI craft check: N/A - No visual UI changed.

**BQC Fixes**:

* None - Media verification task only.

***

### Task T017 - Run asset-size validation and confirm every AI Rogue theme ambience loop stays under the 900 KB music cap

**Started**: 2026-06-28 18:41 **Completed**: 2026-06-28 18:42 **Duration**: 1 minute

**Notes**:

* Ran the repository media policy checker.
* Confirmed all assets, including the five new theme ambience loops, are within configured limits.
* Individual theme ambience byte counts are recorded in T016 and provenance; all are below 900 KB.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded asset-size validation evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T017 complete and updated progress.

**Verification**:

* Command/check: `bash scripts/check-asset-sizes.sh`
  * Result: PASS - All assets are within configured size limits.
  * Evidence: Output was `OK: All assets within configured size limits (total: 15M)`.
* UI product-surface check: N/A - Asset-size validation task only; no user-facing route changed.
* UI craft check: N/A - No visual UI changed.

**BQC Fixes**:

* None - Media policy validation task only.

***

### Task T018 - Run desktop and mobile browser audio pack proof with explicit loading, failed-request, page-error, and silent-fallback checks

**Started**: 2026-06-28 18:42 **Completed**: 2026-06-28 18:44 **Duration**: 2 minutes

**Notes**:

* Ran the focused Playwright browser audio pack proof.
* The proof covered desktop 1440x1000 and mobile 390x844 viewports.
* The updated proof fetched all five committed theme ambience files through the real runtime asset lookup, waited for source starts, asserted no page errors or failed requests, and verified silent fallback does not fetch audio when Web Audio is unavailable.
* Playwright webserver startup printed transient curl connection failures while polling readiness before the dev servers came up; the tests passed.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Recorded browser proof evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T018 complete and updated progress.

**Verification**:

* Command/check: `bunx playwright test tests/e2e/ai-rogue-runtime.spec.ts -g "browser audio pack"`
  * Result: PASS - Desktop and mobile browser audio pack proof passed.
  * Evidence: Playwright reported 2 passed tests: desktop and mobile `AI Rogue browser audio pack fetches enemy, boss, and theme audio`.
* UI product-surface check: PASS - AI Rogue Play route was inspected by Playwright on desktop and mobile; diagnostics stayed in test harness state, with no visible debug panel added to the product surface.
* UI craft check: PASS - No UI layout changes were made; mobile and desktop audio proof completed without page errors, failed requests, or product-surface diagnostics.

**BQC Fixes**:

* Failure path completeness: Browser proof covers failed-request/page-error collection and Web Audio silent fallback.
* Product surface discipline: Proof instrumentation remains test-only and absent from normal product UI.

***

### Task T019 - Complete manual browser review across all five sector themes with product-facing UI only and diagnostics confined to tests or notes

**Started**: 2026-06-28 18:44 **Completed**: 2026-06-28 18:49 **Duration**: 5 minutes

**Notes**:

* Started a local Vite dev server on `http://127.0.0.1:5191/`.
* Used `agent-browser` to inspect the AI Rogue Play route on desktop 1440x1000 and mobile 390x844.
* Confirmed the visible route remains product-facing before and after Start: normal navigation, AI Rogue views, Play heading, runtime controls, movement/combat controls, and How to play content.
* Confirmed diagnostics remain confined to Playwright harnesses and implementation notes; no asset telemetry, injected URL controls, debug labels, or runtime internals were added to normal UI.
* Used the T018 focused browser proof as the all-five-theme route evidence: all five real committed theme ambience files fetched and source-started on desktop and mobile.
* Recorded the acoustic limitation explicitly: agent review cannot judge human fatigue, loop smoothness, or masking; Session 08 owns final full-pack acoustic sign-off.

**Files Changed**:

* `docs/extensions/ai-rogue/game-feel.md` - Added actual Session 05 browser proof and route-review notes plus acoustic caveat.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Added browser review findings and T019 evidence.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T019 complete and updated progress.

**Verification**:

* Command/check: `agent-browser open http://127.0.0.1:5191/extensions/ai-rogue/play`
  * Result: PASS - AI Rogue Play route opened in browser automation.
  * Evidence: Browser title was `Extension View -- AI OS`.
* Command/check: `agent-browser snapshot -i`
  * Result: PASS - Desktop and mobile snapshots showed product-facing Play controls and no audio/debug telemetry.
  * Evidence: Snapshots listed Play, AI Rogue views, runtime controls, movement/combat controls, and How to play content.
* Command/check: `bunx playwright test tests/e2e/ai-rogue-runtime.spec.ts -g "browser audio pack"`
  * Result: PASS - All-five-theme real asset browser proof passed on desktop and mobile.
  * Evidence: Playwright reported 2 passed tests.
* Command/check: `rg -n "Browser review on 2026-06-28|Desktop 1440x1000|Mobile 390x844|Acoustic caveat" .spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md`
  * Result: PASS - Session notes contain desktop/mobile review findings and acoustic caveat.
  * Evidence: Matches show the review findings section.
* Command/check: `rg -n "Session 05 browser proof|Session 05 route review|Agent review can verify|Human listening" docs/extensions/ai-rogue/game-feel.md`
  * Result: PASS - Durable docs record browser proof, route review, and human listening caveat.
  * Evidence: Matches show the updated review notes.
* UI product-surface check: PASS - Desktop and mobile AI Rogue Play snapshots are product-facing and contain no implementation telemetry, injected URL controls, or debug labels.
* UI craft check: PASS - No layout/UI implementation changed; snapshots show expected controls at desktop and mobile widths.

**BQC Fixes**:

* Product surface discipline: Confirmed normal AI Rogue Play UI does not expose test diagnostics or asset-loading internals.

***

### Task T020 - Validate ASCII and LF requirements, then update implementation notes with commands, evidence, and remaining non-feature caveats

**Started**: 2026-06-28 18:49 **Completed**: 2026-06-28 18:52 **Duration**: 3 minutes

**Notes**:

* Validated touched text files for ASCII-only content.
* Validated touched text files for Unix LF line endings.
* Ran targeted Prettier check, formatted the Markdown spec artifacts that needed wrapping, and re-ran the targeted check successfully.
* Remaining caveat is non-feature: agent review cannot judge human acoustic fatigue or masking; this is documented for Session 08 final acoustic sign-off.

**Files Changed**:

* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md` - Added final validation evidence and completed the task ledger.
* `.spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md` - Marked T020 complete and updated final progress.
* `.spec_system/PRD/phase_36/session_05_sector_theme_audio_pack.md` - Formatted Markdown wrapping with Prettier.

**Verification**:

* Command/check: `status=0; for file in .spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md .spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md .spec_system/PRD/phase_36/session_05_sector_theme_audio_pack.md docs/extensions/ai-rogue/game-feel.md scripts/generate-ai-rogue-theme-ambience.ts src/assets/ai-rogue/audio/music/provenance.json src/extensions/ai-rogue/runtime/__tests__/audio.test.ts tests/e2e/ai-rogue-runtime.spec.ts tsconfig.scripts.json; do if LC_ALL=C grep -n '[^ -~\t]' "$file"; then status=1; fi; done; exit "$status"`
  * Result: PASS - Touched text files contain ASCII-only content.
  * Evidence: Command exited 0 with no output.
* Command/check: `status=0; for file in .spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md .spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md .spec_system/PRD/phase_36/session_05_sector_theme_audio_pack.md docs/extensions/ai-rogue/game-feel.md scripts/generate-ai-rogue-theme-ambience.ts src/assets/ai-rogue/audio/music/provenance.json src/extensions/ai-rogue/runtime/__tests__/audio.test.ts tests/e2e/ai-rogue-runtime.spec.ts tsconfig.scripts.json; do if grep -n $'\r' "$file"; then status=1; fi; done; exit "$status"`
  * Result: PASS - Touched text files use Unix LF line endings.
  * Evidence: Command exited 0 with no output.
* Command/check: `bunx prettier --check .spec_system/specs/phase36-session05-sector-theme-audio-pack/implementation-notes.md .spec_system/specs/phase36-session05-sector-theme-audio-pack/tasks.md .spec_system/PRD/phase_36/session_05_sector_theme_audio_pack.md docs/extensions/ai-rogue/game-feel.md scripts/generate-ai-rogue-theme-ambience.ts src/assets/ai-rogue/audio/music/provenance.json src/extensions/ai-rogue/runtime/__tests__/audio.test.ts tests/e2e/ai-rogue-runtime.spec.ts tsconfig.scripts.json`
  * Result: PASS - All matched touched text files use Prettier code style.
  * Evidence: Final check reported `All matched files use Prettier code style!`.
* UI product-surface check: N/A - Text validation task only; T019 contains the product-surface review.
* UI craft check: N/A - Text validation task only; T019 contains the browser review.

**BQC Fixes**:

* None - Final text validation task only.

## Provenance Evidence

| Track                                | Bytes  | Duration | Codec | Channels | Sample Rate |
| ------------------------------------ | ------ | -------- | ----- | -------- | ----------- |
| `theme_cold_cache_ambience.ogg`      | 140196 | 16.0065s | opus  | 2        | 48000       |
| `theme_corrupted_index_ambience.ogg` | 159650 | 16.0065s | opus  | 2        | 48000       |
| `theme_kernel_core_ambience.ogg`     | 144865 | 16.0065s | opus  | 2        | 48000       |
| `theme_firewall_ambience.ogg`        | 150857 | 16.0065s | opus  | 2        | 48000       |
| `theme_model_vault_ambience.ogg`     | 141674 | 16.0065s | opus  | 2        | 48000       |

## Browser Review Findings

Browser review on 2026-06-28:

* Desktop 1440x1000 Play route opened at `http://127.0.0.1:5191/extensions/ai-rogue/play`.
* Desktop snapshot showed product-facing navigation, AI Rogue views, Play heading, runtime controls, movement/combat controls, and How to play content.
* Desktop Start activation kept the visible surface product-facing; no asset telemetry, debug labels, injected URL controls, or runtime internals were exposed.
* Mobile 390x844 snapshot showed the compact navigation trigger, AI Rogue views, Play heading, runtime controls, movement/combat controls, and How to play content without diagnostic UI.
* Focused browser proof covered all five sector theme ambience routes with real committed URL fetches and source starts on desktop and mobile.
* Mute/music-volume and silent fallback behavior are covered by focused unit tests and browser proof.
* Acoustic caveat: agent review cannot make human listening judgments about fatigue, loop smoothness, or masking. Final human acoustic sign-off remains a Session 08 responsibility.

## Validation Commands

* `bun run scripts/generate-ai-rogue-theme-ambience.ts`
* `bun run test -- src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-audio-adapter.test.ts src/extensions/ai-rogue/runtime/__tests__/themes.test.ts`
* `bunx tsc --noEmit -p tsconfig.json`
* `bunx tsc --noEmit -p tsconfig.scripts.json`
* `ffprobe` JSON verification for all five `theme_*_ambience.ogg` files
* `bash scripts/check-asset-sizes.sh`
* `bunx playwright test tests/e2e/ai-rogue-runtime.spec.ts -g "browser audio pack"`
* ASCII and LF scan for touched text files

## Blockers & Solutions

None.

## Design Decisions

None yet.


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