> 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/phase34-session07-render-performance-and-audio-docs/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase34-session07-render-performance-and-audio-docs` **Started**: 2026-06-26 06:45 **Last Updated**: 2026-06-26 07:10

***

## Session Progress

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

***

## Task Log

### 2026-06-26 - Session Start

**Environment verified**:

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

***

### Task T001 - Verify Phase 34 Session 07 Scope

**Started**: 2026-06-26 06:45 **Completed**: 2026-06-26 06:45 **Duration**: 1 minute

**Notes**:

* Confirmed deterministic project state selects `phase34-session07-render-performance-and-audio-docs` as the current session.
* Confirmed Phase 34 Session 07 targets AR-D4-002 render projection rebuild pressure, AR-D9-001 media policy drift, and AR-D9-002 inaccurate ducking claims.
* Confirmed prerequisite sessions 01 through 06 are complete in analyzer output and Session 07 is the first unfinished current-phase candidate.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Created implementation log and recorded initial scope verification evidence.

**Verification**:

* Command/check: `if [ -d ".spec_system/scripts" ]; then bash .spec_system/scripts/analyze-project.sh --json; else bash /home/aiwithapex/.codex/plugins/cache/apex-spec-system/apex-spec/2.1.3-codex/scripts/analyze-project.sh --json; fi`
  * Result: PASS - Analyzer reported current session `phase34-session07-render-performance-and-audio-docs`, Phase 34 in progress, Sessions 01-06 complete, and Session 07 incomplete.
  * Evidence: JSON output listed Session 07 candidate with `completed: false` and `current_session_dir_exists: true`.
* Command/check: `sed -n '1,260p' .spec_system/PRD/phase_34/session_07_render_performance_and_audio_docs.md`
  * Result: PASS - Session stub includes AR-D4-002, AR-D9-001, AR-D9-002, scope, prerequisites, deliverables, and success criteria.
  * Evidence: Stub states render hot-loop cache, stale no-audio/media cap docs, and unimplemented ducking claims are in scope.
* UI product-surface check: N/A - Setup verification changed no user-facing UI.
* UI craft check: N/A - Setup verification changed no user-facing UI.

***

### Task T002 - Inspect Runtime And Documentation Sources

**Started**: 2026-06-26 06:45 **Completed**: 2026-06-26 06:46 **Duration**: 1 minute

**Notes**:

* Inspected the render hot path in `renderer.ts`; `render()` rebuilds `createAiRogueRenderModel` every render before sprite sync, idle animation, tweens, effects HUD sync, inspect overlay drawing, camera snap, and `app.render()`.
* Inspected reset, load, start, preference, resize, reduced-motion, command-result, selected-upgrade, and loadout paths that must invalidate or naturally miss the latest-value projection cache.
* Confirmed `runtime/audio.ts` and `README.md` contain current ducking claims, while the implementation uses master/music/SFX gain buses, lazy decode, fades, loops, one-shots, heartbeat, and silent fallback without sidechain/event ducking.
* Inspected `enablement-decision.md`, `implementation-baseline.md`, `visual-assets.md`, `media-policy.md`, and `folded Phase 35 PRD source` for no-audio, all-assets-200-KB, 900 KB music cap, IndexedDB, and doc-drift wording.
* Inspected existing render-model and renderer-lifecycle tests to extend the local behavior coverage instead of introducing a new test style.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Recorded source inspection evidence.

**Verification**:

* Command/check: `sed -n '1,360p' src/extensions/ai-rogue/runtime/renderer.ts` plus surrounding lifecycle reads
  * Result: PASS - Located the active per-render projection call and relevant invalidation paths.
  * Evidence: `render()` assigns `state.renderModel = createAiRogueRenderModel(...)`; reset/load/start/preference/resize/reduced-motion paths call `render()` after state changes.
* Command/check: `rg -n "duck|ducking|no-audio|no audio|200 KB|900 KB|Web Audio|IndexedDB|localStorage|audio" docs/extensions/ai-rogue src/extensions/ai-rogue/runtime/audio.ts docs/media-policy.md`
  * Result: PASS - Found stale ducking, no-audio, and all-assets-200-KB wording and current media policy references.
  * Evidence: Matches include `runtime/audio.ts`, `README.md`, `enablement-decision.md`, `implementation-baseline.md`, `visual-assets.md`, `media-policy.md`, and `folded Phase 35 PRD source`.
* Command/check: `sed -n '1,340p' src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts` and `sed -n '1,420p' src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - Existing tests cover deterministic projection, summaries, large HUD behavior, sprite cleanup, RAF coalescing, and reduced-motion fallbacks.
  * Evidence: Tests are local Vitest files under `src/extensions/ai-rogue/runtime/__tests__/`.
* UI product-surface check: N/A - Source inspection changed no user-facing UI.
* UI craft check: N/A - Source inspection changed no user-facing UI.

***

### Task T003 - Create Implementation Notes Scaffold

**Started**: 2026-06-26 06:45 **Completed**: 2026-06-26 06:47 **Duration**: 2 minutes

**Notes**:

* Created the session implementation notes before checking off implementation tasks so task evidence can be recorded immediately.
* Added session progress, environment verification, task log entries, exact command/check evidence, and UI/BQC applicability slots.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Added scaffold and initial task evidence entries.
* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/tasks.md` - Added progress summary table for per-task checklist updates.

**Verification**:

* Command/check: `sed -n '1,220p' .spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md`
  * Result: PASS - Notes file exists with session metadata, progress, environment verification, and task log entries.
  * Evidence: File contains the implementation notes scaffold and T001-T003 evidence sections.
* UI product-surface check: N/A - Spec-system notes changed no user-facing UI.
* UI craft check: N/A - Spec-system notes changed no user-facing UI.

***

### Task T004 - Add Latest-Value Render Projection Cache Helper

**Started**: 2026-06-26 06:47 **Completed**: 2026-06-26 06:48 **Duration**: 1 minute

**Notes**:

* Added `createAiRogueRenderProjectionCache` as a per-instance, latest-value cache around `createAiRogueRenderModel`.
* Cache hits require the same snapshot object plus matching turn, depth, status, viewport width/height, tile scale, HUD height, reduced-motion, high-contrast, Large HUD, input mode, and seed metadata values.
* Kept `createAiRogueRenderModel` pure and unchanged; the cache accepts an injectable projection factory for focused cache and renderer-bound tests.
* BQC check: cache state is scoped to the helper instance and exposes `clear()` for lifecycle cleanup; no process-wide mutable map was introduced.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/render-model.ts` - Added render projection cache types, key creation, hit comparison, and latest-value cache helper.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts`
  * Result: PASS - Existing render-model regression suite still passes after adding the cache helper.
  * Evidence: Vitest reported 1 test file passed and 7 tests passed.
* Command/check: Targeted code inspection of `createAiRogueRenderProjectionCache`
  * Result: PASS - Cache stores one latest entry, compares all required key inputs, and clears by dropping the entry reference.
  * Evidence: Helper is per-instance and has no module-level cached render model.
* UI product-surface check: N/A - Runtime helper changed no user-facing route text or layout.
* UI craft check: N/A - Runtime helper changed no user-facing route text or layout.

***

### Task T005 - Add Render-Model Cache Unit Coverage

**Started**: 2026-06-26 06:48 **Completed**: 2026-06-26 06:49 **Duration**: 1 minute

**Notes**:

* Added Vitest coverage for latest projection reuse with equivalent preference and seed values.
* Added invalidation coverage for snapshot changes, viewport width changes, tile scale changes, render preference changes, and seed metadata changes.
* Preserved deterministic sorted-output coverage and asserted cached model output remains sorted.
* BQC check: tests exercise cache contract alignment and state freshness for changed projection inputs.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts` - Added cache reuse and invalidation tests.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts`
  * Result: PASS - Focused render-model test file passes with new cache coverage.
  * Evidence: Vitest reported 1 test file passed and 12 tests passed.
* UI product-surface check: N/A - Unit tests changed no user-facing UI.
* UI craft check: N/A - Unit tests changed no user-facing UI.

***

### Task T006 - Integrate Cached Projection Into Renderer Render Path

**Started**: 2026-06-26 06:49 **Completed**: 2026-06-26 06:50 **Duration**: 1 minute

**Notes**:

* Added one render projection cache instance per mounted renderer and resolved `state.renderModel` through `getOrCreate()`.
* Kept clock-driven background drift, damage vignette, sprite sync, idle animation, entity tweening, effects HUD sync, inspect overlay drawing, optional camera snap, and `app.render()` outside the projection cache.
* Cleared the cache on command results, resize, reduced-motion media updates, runtime preference updates, selected-upgrade/loadout changes, start, reset, load, and destroy paths.
* BQC check: lifecycle clear paths avoid stale render summaries after state re-entry while retaining per-frame cache reuse for unchanged active ticker renders.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Integrated the latest-value projection cache and explicit lifecycle invalidation calls.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - Focused render-model and renderer lifecycle tests still pass after renderer integration.
  * Evidence: Vitest reported 2 test files passed and 18 tests passed.
* Command/check: Targeted code inspection of `render()` in `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - Projection now uses `renderProjectionCache.getOrCreate(...)`, while per-frame drawing, sprite sync, animation, effects, inspect overlay, camera snap, and app rendering still execute after projection resolution.
  * Evidence: The render body still calls `drawBackground`, `drawDamageVignette`, `syncSprites`, `animateIdleEnemies`, `tweenEntities`, `effects?.syncHud`, `drawInspectOverlay`, `effects?.snapCamera`, and `app.render()`.
* UI product-surface check: N/A - Renderer internals changed no product-facing copy or route layout.
* UI craft check: N/A - Renderer internals changed no product-facing copy or route layout.

***

### Task T007 - Add Renderer Lifecycle Cache Coverage

**Started**: 2026-06-26 06:50 **Completed**: 2026-06-26 06:51 **Duration**: 1 minute

**Notes**:

* Added renderer lifecycle test coverage that repeated unchanged render projection requests hit the cache after the first build.
* Covered explicit cache clears for start, reset, load, and destroy lifecycle transitions by asserting a fresh projection is built after each clear and subsequent unchanged calls are reused.
* BQC check: lifecycle cache clear coverage protects state freshness on renderer re-entry and teardown paths.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Added projection cache bound and lifecycle-clear coverage.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - Focused renderer lifecycle tests pass with cache coverage.
  * Evidence: Vitest reported 1 test file passed and 7 tests passed.
* Command/check: Targeted inspection of `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - Renderer calls `clearRenderProjectionCache()` from start, reset, load, and destroy paths.
  * Evidence: Cache clear calls are present in those controller lifecycle branches.
* UI product-surface check: N/A - Lifecycle tests changed no user-facing UI.
* UI craft check: N/A - Lifecycle tests changed no user-facing UI.

***

### Task T008 - Preserve Dynamic Render Summary Updates

**Started**: 2026-06-26 06:51 **Completed**: 2026-06-26 06:52 **Duration**: 1 minute

**Notes**:

* Verified renderer summary emission still reads `state.renderModel.summary` after `render()` resolves the cached or rebuilt projection.
* Confirmed projection invalidation tests cover changed turn/state, reduced motion, high contrast, Large HUD labels, input mode, and seed metadata summary text.
* Confirmed the Runtime Canvas assistive summary bridge still updates the `aria-describedby` target from runtime `frame` events and cleans it up on unmount.
* BQC check: accessibility-facing summary state remains caller-visible and updates through the existing callback contract.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Cache invalidation preserves summary freshness before `emitRenderSummary()` calls.
* `src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts` - Cache tests assert summary changes after relevant state/preference/seed changes.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx`
  * Result: PASS - Render-model summary/cache tests and Runtime Canvas assistive summary tests pass.
  * Evidence: Vitest reported 2 test files passed and 24 tests passed.
* Command/check: Targeted inspection of `emitRenderSummary()` and `render()` in `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - Summary events are emitted only after `state.renderModel` is populated by render, and projection invalidation occurs before render on state/preference changes.
  * Evidence: `emitRenderSummary()` reads `state.renderModel.summary`; state-changing controller paths call `clearRenderProjectionCache()` before `render()` and summary emission.
* UI product-surface check: PASS - Runtime Canvas assistive summary remains in a status/live region and does not add debug/runtime diagnostics to the normal product surface.
* UI craft check: N/A - No visual layout or route copy changed for this task.

***

### Task T009 - Update Audio Runtime Comments

**Started**: 2026-06-26 06:52 **Completed**: 2026-06-26 06:53 **Duration**: 1 minute

**Notes**:

* Replaced the runtime comment claim that the Web Audio graph "ducks" with implemented behavior: loads, decodes, mixes, fades, loops, and gates audio by volume/mute preferences.
* Added an explicit comment that sidechain or event-based music ducking is not implemented.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/audio.ts` - Corrected module-level audio behavior comment.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - Focused audio runtime tests still pass after comment correction.
  * Evidence: Vitest reported 1 test file passed and 5 tests passed.
* Command/check: `rg -n "duck|ducking" src/extensions/ai-rogue/runtime/audio.ts`
  * Result: PASS - Remaining mention is an explicit "does not implement" note, not a capability claim.
  * Evidence: Comment now states sidechain or event-based music ducking is not implemented.
* UI product-surface check: N/A - Runtime comments changed no user-facing UI.
* UI craft check: N/A - Runtime comments changed no user-facing UI.

***

### Task T010 - Update AI Rogue README Audio And Media Language

**Started**: 2026-06-26 06:53 **Completed**: 2026-06-26 06:54 **Duration**: 1 minute

**Notes**:

* Updated current README audio bullets from "mixing/ducking" to implemented Web Audio mixing, fades, loops, one-shots, lazy decode, mute/volume preferences, and silent fallback.
* Clarified generated Ogg audio is committed local asset content with no remote game-content loading.
* Preserved explicit opt-in and browser-local persistence posture already present in the README.

**Files Changed**:

* `docs/extensions/ai-rogue/README.md` - Corrected current audio/media behavior language.

**Verification**:

* Command/check: `rg -n "mixing/ducking|ducks|ducking|no audio|No audio" docs/extensions/ai-rogue/README.md`
  * Result: PASS - No current ducking capability claim remains.
  * Evidence: Only remaining ducking hit states the runtime does not implement sidechain or event-based music ducking.
* UI product-surface check: N/A - Documentation changed no product route UI.
* UI craft check: N/A - Documentation changed no product route UI.

***

### Task T011 - Update Historical Enablement Decision Audio Evidence

**Started**: 2026-06-26 06:54 **Completed**: 2026-06-26 06:55 **Duration**: 1 minute

**Notes**:

* Added a current supersession note explaining Session 10 no-audio and all-assets-200-KB evidence is historical.
* Updated gate rows and rationale so current AI Rogue audio is direct Web Audio over committed local Ogg assets with the reviewed 900 KB music-track cap.
* Preserved explicit opt-in, browser-local, and no remote game-content loading posture.

**Files Changed**:

* `docs/extensions/ai-rogue/enablement-decision.md` - Labeled historical no-audio/media-cap evidence and current supersession policy.

**Verification**:

* Command/check: `rg -n "No audio|no audio|200 KB|900 KB|Web Audio|audio" docs/extensions/ai-rogue/enablement-decision.md`
  * Result: PASS - Remaining no-audio and 200 KB references are labeled historical or superseded, and current Web Audio/900 KB music-cap policy is explicit.
  * Evidence: Matches include the Current Supersession Note, historical no-audio row, current media-policy row, and superseded decision rationale.
* UI product-surface check: N/A - Documentation changed no product route UI.
* UI craft check: N/A - Documentation changed no product route UI.

***

### Task T012 - Update Implementation Baseline And Visual Asset Contracts

**Started**: 2026-06-26 06:55 **Completed**: 2026-06-26 06:56 **Duration**: 1 minute

**Notes**:

* Added the implemented `indexedDB` capability to the maintained implementation baseline beside `localStorage`.
* Clarified preference state remains browser-local in `localStorage`, while wallet, ledger, save-slot, and run-history state remains browser-local in IndexedDB.
* Updated current atlas inventory and frame counts to match maintained visual-asset records.
* Clarified runtime image art stays under the 200 KB image/non-logo limit while AI Rogue music uses the reviewed 900 KB cap.
* Added a current audio note that Web Audio does not implement sidechain or event-based music ducking.

**Files Changed**:

* `docs/extensions/ai-rogue/implementation-baseline.md` - Updated capability, persistence, atlas, image-cap, audio-cap, and ducking contract language.
* `docs/extensions/ai-rogue/visual-assets.md` - Began aligning repository limit and historical Session 09 audio wording with current media policy.

**Verification**:

* Command/check: `rg -n "indexedDB|localStorage|200 KB|900 KB|Web Audio|ducking|music cap|Repository limits|historical" docs/extensions/ai-rogue/implementation-baseline.md docs/extensions/ai-rogue/visual-assets.md`
  * Result: PASS - Docs now distinguish `localStorage`, IndexedDB, 200 KB image/non-music cap, 900 KB AI Rogue music cap, current Web Audio, and historical no-audio evidence.
  * Evidence: Matches include the new indexedDB capability, browser-local storage split, image-cap wording, 900 KB music cap, and historical Session 09 note.
* Command/check: `sed -n '1,80p' src/extensions/ai-rogue/capabilities.ts`
  * Result: PASS - Source declares `readGeneratedData`, `localStorage`, and `indexedDB`, matching the updated baseline.
  * Evidence: `AI_ROGUE_CAPABILITIES` contains `kind: "indexedDB"` for wallet, ledger, run history, and save slot records.
* UI product-surface check: N/A - Documentation changed no product route UI.
* UI craft check: N/A - Documentation changed no product route UI.

***

### Task T013 - Update Visual Asset Audio Policy Pointer

**Started**: 2026-06-26 06:56 **Completed**: 2026-06-26 06:57 **Duration**: 1 minute

**Notes**:

* Added a dedicated Current Audio Asset Pointer to `visual-assets.md`.
* Clarified generated audio is tracked separately from the visual prompt/atlas inventory.
* Pointed current audio readers to `game-feel.md` for runtime behavior and `docs/media-policy.md` for size policy.
* Explicitly stated AI Rogue music tracks are not image-atlas assets under the image-only 200 KB cap and instead use the reviewed 900 KB cap.

**Files Changed**:

* `docs/extensions/ai-rogue/visual-assets.md` - Added current audio asset pointer and clarified image-only versus music-track caps.

**Verification**:

* Command/check: `rg -n "Current Audio Asset Pointer|audio|Game Feel|media-policy|200 KB|900 KB|check-asset-sizes" docs/extensions/ai-rogue/visual-assets.md`
  * Result: PASS - Visual asset docs now point current audio to game-feel/media policy and keep 200 KB wording tied to image/non-music assets or historical image records.
  * Evidence: Matches include Current Audio Asset Pointer, game-feel/media-policy links, image-only 200 KB cap, and 900 KB music cap.
* UI product-surface check: N/A - Documentation changed no product route UI.
* UI craft check: N/A - Documentation changed no product route UI.

***

### Task T014 - Update Audit Findings Remediation Evidence

**Started**: 2026-06-26 06:57 **Completed**: 2026-06-26 06:58 **Duration**: 1 minute

**Notes**:

* Added remediation status for AR-D4-002 describing the per-mount render projection cache, key inputs, per-frame work preserved outside the cache, and focused coverage.
* Added remediation status for AR-D9-001 describing historical enablement evidence and current Web Audio plus 900 KB music-cap supersession.
* Added remediation status for AR-D9-002 describing removal of current ducking claims and explicit no-ducking notes.
* Updated the doc-drift list and follow-up backlog to mark the completed audio/media drift work without deleting the original finding context.

**Files Changed**:

* `.spec_system/PRD/phase_35/PRD_phase_35.md` - Added remediation status and completed doc-drift evidence for AR-D4-002, AR-D9-001, and AR-D9-002.

**Verification**:

* Command/check: `rg -n "AR-D4-002|AR-D9-001|AR-D9-002|Remediation status|completed 2026-06-26|mixing/ducking|900 KB|projection cache" .spec_system/PRD/phase_35/PRD_phase_35.md`
  * Result: PASS - Audit findings retain original observations/recommendations and include Session 07 remediation evidence.
  * Evidence: Matches show remediation entries under all three findings and completed doc-drift items.
* UI product-surface check: N/A - Documentation changed no product route UI.
* UI craft check: N/A - Documentation changed no product route UI.

***

### Task T015 - Record Cache Design And Remaining Closeout Evidence

**Started**: 2026-06-26 06:58 **Completed**: 2026-06-26 06:59 **Duration**: 1 minute

**Notes**:

* Added session-level design decisions covering cache scope, invalidation inputs, audio ducking resolution, no-new-asset posture, and Session 08 carry-forward evidence.
* Confirmed no new assets, dependencies, remote loading, hosted writes, collectors, analytics, or default-enablement changes were introduced by the implementation tasks.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Added Design Decisions, Session 08 Carry-Forward, and T015 evidence.

**Verification**:

* Command/check: `rg -n "Design Decisions|Session 08 Carry-Forward|latest-value|No New Asset|Default enablement" .spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md`
  * Result: PASS - Session notes now include cache design, no-new-asset posture, and Session 08 closeout carry-forward evidence.
  * Evidence: Matches identify the new design-decision and carry-forward sections.
* UI product-surface check: N/A - Spec-system notes changed no product route UI.
* UI craft check: N/A - Spec-system notes changed no product route UI.

***

## Design Decisions

### Decision 1: Per-Mount Latest-Value Projection Cache

**Context**: AR-D4-002 identified full render projection rebuilds on every active ticker frame, even when the simulation snapshot and render inputs were unchanged.

**Options Considered**:

1. Renderer-owned latest-value cache - Smallest scope, one cache per mounted controller, explicit lifecycle clear hooks, no process-wide state.
2. Global render-model cache - More reuse across mounts but higher stale-state and memory-retention risk.

**Chosen**: Renderer-owned latest-value cache backed by `createAiRogueRenderProjectionCache`.

**Rationale**: The renderer already owns the mounted controller lifecycle and render preferences. A one-entry cache eliminates unchanged ticker rebuilds without changing the deterministic projection function or retaining old run graphs.

### Decision 2: Cache Invalidation Inputs

**Context**: Projection output depends on snapshot identity and semantic state, viewport sizing, preferred tile scale, accessibility preferences, concrete input mode, and seed metadata.

**Options Considered**:

1. Snapshot identity only - Fast but can miss preference and viewport changes.
2. Serialized whole snapshot - Broad but expensive and contrary to hot-loop allocation goals.
3. Snapshot identity plus semantic render inputs - Bounded and explicit.

**Chosen**: Snapshot identity plus turn, depth, status, viewport width/height, tile scale, HUD height, reduced motion, high contrast, Large HUD labels, input mode, and all seed metadata fields.

**Rationale**: This matches the spec inputs while avoiding serialization work in the render loop. Explicit renderer clears cover reset, load, start, destroy, command results, resize, preference changes, and seed changes.

### Decision 3: Remove Ducking Claims Instead Of Implementing Ducking

**Context**: AR-D9-002 found docs/comments claiming mixing/ducking, but `runtime/audio.ts` implements gain buses, preferences, fades, loops, one-shots, heartbeat, lazy decode, and silent fallback without sidechain/compressor or event-based ducking.

**Options Considered**:

1. Implement ducking in this session - Adds new audio behavior and more test surface beyond the doc-drift objective.
2. Remove current ducking claims - Matches implemented behavior and avoids new audio risk.

**Chosen**: Remove current ducking claims and explicitly document no sidechain or event-based music ducking.

**Rationale**: The session goal is to reconcile current docs with implemented behavior. No product requirement asks for new ducking behavior, assets, or audio-engine complexity in this session.

### Decision 4: No New Asset Or Enablement Surface

**Context**: The session addresses runtime projection and documentation drift only.

**Chosen**: No new media assets, generated art, re-encoded audio, dependencies, remote content loading, collectors, analytics, hosted writes, or default enablement changes.

**Rationale**: Current local Ogg assets and reviewed media policy already cover the audio contract. Default enablement remains assigned to Session 08 closeout evidence.

## Session 08 Carry-Forward

* Default enablement remains deferred to `phase34-session08-default-enablement-evidence-closeout`.
* Session 08 should consume the updated audit findings and docs as current evidence, then re-run the full default-enablement gate set.
* Session 08 still owns final default-enable/no-go evidence, including budget, asset-size, private-runtime, public-demo, no-bridge, no-hosted-write, no-remote-loading, and product-surface proof.
* This session introduced no new audio assets, remote loading, hosted persistence, collectors, analytics, or dependency changes.

***

### Task T016 - Run Focused Runtime Vitest Coverage

**Started**: 2026-06-26 06:59 **Completed**: 2026-06-26 07:00 **Duration**: 1 minute

**Notes**:

* Ran the focused render-model, renderer lifecycle, and audio Vitest files requested by the session quality gate.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Recorded focused test evidence.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - Focused runtime coverage passed.
  * Evidence: Vitest reported 3 test files passed and 24 tests passed.
* UI product-surface check: N/A - Test execution changed no user-facing UI.
* UI craft check: N/A - Test execution changed no user-facing UI.

***

### Task T018 - Run Typecheck, Lint, And Format Check

**Started**: 2026-06-26 07:01 **Completed**: 2026-06-26 07:04 **Duration**: 3 minutes

**Notes**:

* Initial typecheck passed.
* Initial lint and format check failed on Prettier drift in touched session/docs/runtime files.
* Ran targeted Prettier write on the files reported by `format:check`, then reran typecheck, lint, and format check successfully.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Recorded quality gate evidence.
* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/spec.md` - Prettier formatting only.
* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/tasks.md` - Prettier formatting only and checklist update.
* `docs/extensions/ai-rogue/enablement-decision.md` - Prettier formatting after documentation edits.
* `docs/extensions/ai-rogue/implementation-baseline.md` - Prettier formatting after documentation edits.
* `docs/extensions/ai-rogue/visual-assets.md` - Prettier formatting after documentation edits.
* `src/extensions/ai-rogue/runtime/renderer.ts` - Prettier formatting after cache integration.

**Verification**:

* Command/check: `bun run typecheck`
  * Result: PASS - TypeScript check passed.
  * Evidence: `tsc --noEmit` exited 0.
* Command/check: `bun run lint`
  * Result: PASS - ESLint passed after targeted Prettier formatting.
  * Evidence: `eslint .` exited 0.
* Command/check: `bun run format:check`
  * Result: PASS - Repository formatting check passed.
  * Evidence: Prettier reported "All matched files use Prettier code style!".
* UI product-surface check: N/A - Quality gate execution changed no product route UI.
* UI craft check: N/A - Quality gate execution changed no product route UI.

***

### Task T019 - Run Budget, Asset, Runtime, And Diff Safety Checks

**Started**: 2026-06-26 07:04 **Completed**: 2026-06-26 07:07 **Duration**: 3 minutes

**Notes**:

* Ran bundle budget, asset-size, and private-runtime checks.
* Verified no dependency files, AI Rogue asset files, or AI Rogue audio assets changed.
* Ran source-only added-line scans for `/__*` bridge calls, hosted write primitives, and remote loading primitives.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Recorded safety gate evidence.

**Verification**:

* Command/check: `bun run budget:check`
  * Result: PASS - Bundle budget check passed.
  * Evidence: Total client JS gzip was 1489 KB / 1500 KB and violations were 0.
* Command/check: `bash scripts/check-asset-sizes.sh`
  * Result: PASS - Asset-size check passed.
  * Evidence: Script reported all assets within configured size limits, total 14M.
* Command/check: `bun run runtime:check-private`
  * Result: PASS - Private runtime artifact check passed.
  * Evidence: Script reported "Private runtime artifact check passed."
* Command/check: `git diff --name-only -- package.json bun.lock src/assets/ai-rogue/audio src/assets/ai-rogue`
  * Result: PASS - No dependency or AI Rogue asset/audio files changed.
  * Evidence: Command produced no output.
* Command/check: `git status --short -- package.json bun.lock src/assets/ai-rogue/audio src/assets/ai-rogue`
  * Result: PASS - No uncommitted dependency or AI Rogue asset/audio changes exist.
  * Evidence: Command produced no output.
* Command/check: `git diff -U0 -- src/extensions/ai-rogue | rg -n '^\\+[^+].*(/__|fetch\\(|XMLHttpRequest|sendBeacon|axios|https?://|navigator\\.sendBeacon)' || true`
  * Result: PASS - No added AI Rogue source lines introduce bridge calls, hosted write primitives, or remote loading primitives.
  * Evidence: Command produced no output.
* Command/check: `git diff -U0 -- docs/extensions/ai-rogue | rg -n '^\\+.*(/__|fetch\\(|XMLHttpRequest|sendBeacon|axios|https?://|hosted write|remote loading)' || true`
  * Result: PASS - Documentation edits do not add hosted-write or remote-loading instructions.
  * Evidence: Command produced no output.
* UI product-surface check: N/A - Safety gate execution changed no product route UI.
* UI craft check: N/A - Safety gate execution changed no product route UI.

***

### Task T020 - Validate ASCII, LF, Stale Claims, And Checklist Readiness

**Started**: 2026-06-26 07:07 **Completed**: 2026-06-26 07:10 **Duration**: 3 minutes

**Notes**:

* Scanned changed session, docs, test, and runtime source files for non-ASCII bytes and CRLF line endings.
* Ran a broad stale-claim search; remaining hits were session/task/audit history that explicitly describes the prior finding or remediation.
* Ran a narrower current-doc/code search across `audio.ts`, README, implementation baseline, and visual-assets docs; it returned no stale current ducking/no-audio claims.
* Updated the task checklist and completion checklist for implement closeout.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Recorded final ASCII/LF, stale-claim, and checklist readiness evidence.
* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/tasks.md` - Marked all tasks and completion checklist items complete and updated next step to `creview`.

**Verification**:

* Command/check: `rg --pcre2 -n "[^\\x00-\\x7F]" .spec_system/specs/phase34-session07-render-performance-and-audio-docs/spec.md .spec_system/specs/phase34-session07-render-performance-and-audio-docs/tasks.md .spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md docs/extensions/ai-rogue/README.md docs/extensions/ai-rogue/enablement-decision.md docs/extensions/ai-rogue/implementation-baseline.md docs/extensions/ai-rogue/visual-assets.md .spec_system/PRD/phase_35/PRD_phase_35.md src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/runtime/render-model.ts src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts || true`
  * Result: PASS - No non-ASCII bytes found in scanned changed text files.
  * Evidence: Command produced no output.
* Command/check: `rg -n $'\\r' .spec_system/specs/phase34-session07-render-performance-and-audio-docs/spec.md .spec_system/specs/phase34-session07-render-performance-and-audio-docs/tasks.md .spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md docs/extensions/ai-rogue/README.md docs/extensions/ai-rogue/enablement-decision.md docs/extensions/ai-rogue/implementation-baseline.md docs/extensions/ai-rogue/visual-assets.md .spec_system/PRD/phase_35/PRD_phase_35.md src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/runtime/render-model.ts src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts || true`
  * Result: PASS - No CRLF line endings found in scanned changed text files.
  * Evidence: Command produced no output.
* Command/check: `rg -n "mixing/ducking|decodes, mixes, ducks|No audio implementation found|no audio implementation found|No audio or remote loading|all runtime assets under 200 KB|No committed AI Rogue runtime asset exceeds 200 KB|current .*ducking|ducks" src/extensions/ai-rogue/runtime/audio.ts docs/extensions/ai-rogue .spec_system/specs/phase34-session07-render-performance-and-audio-docs || true`
  * Result: PASS - Broad hits are spec/task/implementation notes or preserved audit history, not active current capability claims.
  * Evidence: Current runtime/docs remediation text now states ducking is not implemented, and historical no-audio/all-assets-200-KB evidence is labeled historical or superseded.
* Command/check: `rg -n "mixing/ducking|decodes, mixes, ducks|No audio implementation found|No audio or remote loading|No committed AI Rogue runtime asset exceeds 200 KB|all runtime assets under 200 KB|Web Audio graph here loads, decodes, mixes, ducks" src/extensions/ai-rogue/runtime/audio.ts docs/extensions/ai-rogue/README.md docs/extensions/ai-rogue/implementation-baseline.md docs/extensions/ai-rogue/visual-assets.md || true`
  * Result: PASS - Current maintained code/docs contain no stale current ducking or no-audio claims.
  * Evidence: Command produced no output.
* Command/check: `rg -n "^- \\[ \\]" .spec_system/specs/phase34-session07-render-performance-and-audio-docs/tasks.md`
  * Result: PASS - No unchecked task or completion checklist items remain after final update.
  * Evidence: Final rerun after this entry produced no incomplete checklist items.
* UI product-surface check: N/A - Final spec-system checks changed no product route UI.
* UI craft check: N/A - Final spec-system checks changed no product route UI.

***

### Task T017 - Run Focused AI Rogue Vitest Suite

**Started**: 2026-06-26 07:00 **Completed**: 2026-06-26 07:01 **Duration**: 1 minute

**Notes**:

* Ran focused AI Rogue Vitest coverage after code and documentation changes.

**Files Changed**:

* `.spec_system/specs/phase34-session07-render-performance-and-audio-docs/implementation-notes.md` - Recorded focused AI Rogue suite evidence.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue`
  * Result: PASS - Focused AI Rogue Vitest suite passed.
  * Evidence: Vitest reported 45 test files passed and 307 tests passed.
* UI product-surface check: N/A - Test execution changed no user-facing UI.
* UI craft check: N/A - Test execution changed no user-facing UI.


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