> 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/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase35-session04-renderer-robustness-and-scheduling` **Started**: 2026-06-26 19:27 **Last Updated**: 2026-06-26 19:43

***

## Session Progress

| Metric              | Value                                              |
| ------------------- | -------------------------------------------------- |
| Tasks Completed     | 21 / 21                                            |
| Estimated Remaining | 0 minutes                                          |
| Blockers            | 0                                                  |
| BQC                 | Active - application renderer/audio hardening pass |

***

## Environment

| Check            | Result | Evidence                                                                                                                                                                                         |
| ---------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Project analysis | PASS   | `analyze-project.sh --json` resolved current session `phase35-session04-renderer-robustness-and-scheduling`, current phase 35, session directory exists, and repo is not detected as a monorepo. |
| Prerequisites    | PASS   | `check-prereqs.sh --json --env` passed `.spec_system`, `jq-1.7`, and `git version 2.43.0`.                                                                                                       |
| Required tools   | PASS   | `check-prereqs.sh --json --tools "bun,bunx,rg,jq"` passed Bun 1.3.14, bunx 1.3.14, ripgrep 15.1.0, and jq 1.7.                                                                                   |
| BQC scope        | PASS   | Application-code session; relevant BQC focus is resource cleanup, failure path completeness, concurrency safety, contract alignment, and product-surface discipline.                             |

***

## Working Tree Baseline

Captured before Session 04 edits:

```
 M .spec_system/state.json
?? .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/
```

Interpretation: `.spec_system/state.json` was already modified before this implement run, and the active Session 04 spec directory was untracked. This session will preserve unrelated work and edit only Session 04 artifacts plus the AI Rogue test/source files required by focused evidence.

***

## Current Evidence Map

| Contract                                    | Current anchor                                                                                                                                              | Initial decision                                                                                      |
| ------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| Resize coalescing                           | `renderer.ts` schedules resize work through `createAnimationFrameTask`; `renderer-lifecycle.test.ts` covers coalescing, cancel, and pending state.          | Preserve and run focused coverage; repair only if tests fail.                                         |
| Reduced-motion fallback                     | `renderer.ts` catches throwing `matchMedia`, supports modern and legacy listeners, and returns no-op cleanup for unavailable APIs.                          | Preserve and run focused coverage; repair only if tests fail.                                         |
| Render cache and transient sprites          | `renderer-lifecycle.test.ts` covers projection cache reuse/clearing and inactive transient `feedback:*` sprite destruction.                                 | Preserve and run focused coverage; repair only if tests fail.                                         |
| Pixi/WebGL initialization failure           | `renderer.ts` catch path emits errors and destroys partial Pixi applications; no direct renderer mount-failure spec existed before this session.            | Add `renderer-mount-failures.test.ts` coverage for init rejection and cleanup.                        |
| Atlas asset load and missing texture source | `assets.test.ts` covers atlas metadata, worker preferences, nearest-neighbor setup, and explicit texture source errors; renderer mount-level proof is thin. | Add renderer mount-failure coverage for `Assets.load` rejection and missing texture source rejection. |
| RuntimeCanvas mount rejection               | `runtime-canvas.test.tsx` covers product-facing loading and error states for rejected runtime mounts.                                                       | Preserve and run focused coverage; repair only if tests fail.                                         |
| Audio silent fallback and disposal          | `audio.test.ts` covers missing `AudioContext`, construction failure, fetch/decode failure, and dispose-before-decode.                                       | Preserve and run focused coverage; extend only if a gap appears.                                      |
| Runtime Playwright smoke                    | `ai-rogue-runtime.spec.ts` covers nonblank canvas, resize/input, route exit cleanup, and clean remount.                                                     | Preserve and run focused smoke after test/source changes.                                             |

***

## Source Repair Decisions

| Owner                                  | Decision         | Evidence                                                                                                                                                     |
| -------------------------------------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Renderer resize scheduling             | No source repair | `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` passed coalescing and cancel coverage.                                |
| Renderer reduced-motion subscription   | No source repair | `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` passed throwing, modern, legacy, and listener-less fallback coverage. |
| Renderer Pixi initialization cleanup   | No source repair | New `renderer-mount-failures.test.ts` passed Pixi init rejection cleanup coverage.                                                                           |
| Atlas asset failure propagation        | No source repair | New `renderer-mount-failures.test.ts` passed `Assets.load` rejection and missing texture source coverage.                                                    |
| Audio silent fallback and disposal     | No source repair | `audio.test.ts` passed missing context, construction failure, fetch/decode failure, active heartbeat/music dispose, and dispose-before-decode coverage.      |
| RuntimeCanvas mount rejection fallback | No source repair | `runtime-canvas.test.tsx` passed product-facing rejected mount loading/error state coverage.                                                                 |

***

## Session 04 Evidence Summary

| Area                          | Result | Evidence                                                                                                                                                             |
| ----------------------------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Renderer scheduling           | PASS   | Existing lifecycle tests pass coalescing, cancel, cache, and sprite cleanup coverage.                                                                                |
| Reduced-motion browser APIs   | PASS   | Existing lifecycle tests pass throwing, modern, legacy, listener-only, and listener-less cases.                                                                      |
| Pixi/WebGL init failure       | PASS   | New mount-failure test proves `Application.init` rejection emits an error, destroys partial app state, skips asset loading, and leaves no mounted canvas.            |
| Atlas asset failure           | PASS   | New mount-failure tests prove rejected `Assets.load` and missing texture source reject cleanly, emit errors, destroy partial app state, and leave no mounted canvas. |
| Audio fallback and disposal   | PASS   | Audio tests cover missing Web Audio, constructor failure, fetch/decode failure, active heartbeat/music disposal, and dispose-before-decode races.                    |
| RuntimeCanvas product surface | PASS   | RuntimeCanvas tests cover product-facing loading and error states for rejected runtime mounts.                                                                       |

## No-Change Decisions And Caveats

* No repairs were made to `src/extensions/ai-rogue/runtime/renderer.ts`, `src/extensions/ai-rogue/runtime/assets.ts`, `src/extensions/ai-rogue/runtime/audio.ts`, or `src/extensions/ai-rogue/views/runtime-canvas.tsx` because focused tests passed after adding the missing coverage.
* The only application-code changes so far are focused test additions in `renderer-mount-failures.test.ts` and `audio.test.ts`.
* Browser storage quota and blocked IndexedDB behavior remains routed to Session 05 by the Phase 35 PRD and Session 04 spec.
* Real hardware-driver-specific WebGL failures are represented in this session by `Application.init` rejection coverage plus the Playwright nonblank runtime smoke, rather than by a host-specific GPU fault injection.
* No new dependencies, media assets, hosted writes, collectors, analytics, remote loading, workers, WebGPU-only behavior, or public-demo bridge surface were introduced.

***

## Command Evidence

Command outputs are summarized in task entries. Full terminal transcripts are not committed unless a later validation step requires a separate artifact.

***

## Blockers

None.

***

## Task Log

### \[2026-06-26] - Session Start

**Environment verified**:

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

***

### Task T001 - Verify Deterministic Project State, Phase 35 Status, And Session 01/02/03 Completion

**Started**: 2026-06-26 19:27 **Completed**: 2026-06-26 19:28 **Duration**: 1 minute

**Notes**:

* Verified the spec-system analysis script selects `phase35-session04-renderer-robustness-and-scheduling`.
* Verified Phase 35 is `in_progress`, Sessions 01, 02, and 03 are complete, and Session 04 is the first incomplete candidate session.
* Verified the current session directory exists and contains `spec.md` and `tasks.md`.
* Verified the repo is not detected as a monorepo, so no package-specific scope applies.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Created the Session 04 evidence ledger and recorded project-state evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T001 complete and added the progress summary table.

**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 - current session resolved to `phase35-session04-renderer-robustness-and-scheduling`; current phase is 35; session directory exists; monorepo detection is false.
  * Evidence: script output reported `current_session_files` containing `spec.md` and `tasks.md`, and candidate Sessions 01, 02, and 03 completed with Session 04 incomplete.
* Command/check: `if [ -d .spec_system/scripts ]; then bash .spec_system/scripts/check-prereqs.sh --json --env; else bash /home/aiwithapex/.codex/plugins/cache/apex-spec-system/apex-spec/2.1.3-codex/scripts/check-prereqs.sh --json --env; fi`
  * Result: PASS - spec-system, jq, and git environment checks passed.
  * Evidence: checker reported `.spec_system`, `jq-1.7`, `git version 2.43.0`, and no issues.
* Command/check: `if [ -d .spec_system/scripts ]; then bash .spec_system/scripts/check-prereqs.sh --json --tools "bun,bunx,rg,jq"; else bash /home/aiwithapex/.codex/plugins/cache/apex-spec-system/apex-spec/2.1.3-codex/scripts/check-prereqs.sh --json --tools "bun,bunx,rg,jq"; fi`
  * Result: PASS - required implementation and evidence tools are available.
  * Evidence: checker reported Bun 1.3.14, bunx 1.3.14, ripgrep 15.1.0, and jq 1.7.
* Command/check: `git status --short`
  * Result: PASS - working tree baseline captured before Session 04 edits.
  * Evidence: output showed pre-existing `.spec_system/state.json` modification and the untracked active Session 04 spec directory.
* UI product-surface check: N/A - setup evidence only; no user-facing UI changed.
* UI craft check: N/A - setup evidence only; no user-facing UI changed.

**BQC Fixes**:

* None - setup evidence only.

***

### Task T002 - Read Session 04 Stub, Phase 35 Routing, Session 01/02/03 Evidence, And Renderer/Audio Audit Details

**Started**: 2026-06-26 19:27 **Completed**: 2026-06-26 19:29 **Duration**: 2 minutes

**Notes**:

* Read the active Session 04 specification and task checklist.
* Read the Phase 35 PRD and Session 04 stub. Current routing says resize coalescing and reduced-motion fallback are fixed behavior to preserve, while AR-D8-002 platform-failure coverage remains the main non-blocking caveat.
* Read completed Session 01, 02, and 03 implementation evidence. Session 01 records no live blockers, Session 02 records existing direct regression anchors, and Session 03 records runtime accessibility/control coverage to preserve.
* Confirmed storage quota and blocked IndexedDB coverage belongs to Session 05, not this renderer/audio session.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added routing, prerequisite, and audit-detail evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T002 complete and updated progress.

**Verification**:

* Command/check: `sed -n '1,620p' .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/spec.md`
  * Result: PASS - active spec defines a verify-or-add renderer robustness session with explicit in-scope renderer, asset, RuntimeCanvas, and audio contracts.
  * Evidence: objectives require bounded resize work, reduced-motion fallback safety, Pixi/asset mount-failure cleanup, RuntimeCanvas error states, and silent-safe audio.
* Command/check: `sed -n '1,260p' .spec_system/PRD/phase_35/session_04_renderer_robustness_and_scheduling.md`
  * Result: PASS - Session 04 stub lists AR-D4-003, AR-D7-001, AR-D8-002, and direct acceptance evidence requirements.
  * Evidence: stub requires coalescing proof, media-query fallback proof, WebGL/Pixi asset failure proof, and audio fallback/dispose proof.
* Command/check: `sed -n '1,520p' .spec_system/PRD/phase_35/PRD_phase_35.md`
  * Result: PASS - Phase 35 PRD records Sessions 01, 02, and 03 complete and routes Session 04 to preserve renderer lifecycle coverage while deepening platform-failure harnesses.
  * Evidence: PRD says Session 04 should preserve runtime preference replay, Large HUD projection, mobile no-overflow, and no-new-D3 boundaries.
* Command/check: targeted inspection of `.spec_system/specs/phase35-session01-rebaseline-audit-evidence/implementation-notes.md`, `.spec_system/specs/phase35-session02-fixed-blocker-regression-coverage/implementation-notes.md`, and `.spec_system/specs/phase35-session03-runtime-accessibility-controls/implementation-notes.md`
  * Result: PASS - prior sessions are complete and provide the current evidence baseline for this session.
  * Evidence: Session 01 records no live blockers, Session 02 maps direct fixed-blocker coverage, and Session 03 records a runtime preference replay fix plus passing accessibility/control gates.
* UI product-surface check: N/A - prerequisite/routing evidence only; no user-facing UI changed.
* UI craft check: N/A - prerequisite/routing evidence only.

**BQC Fixes**:

* None - prerequisite/routing evidence only.

***

### Task T003 - Inventory Current Renderer Scheduling, Reduced-Motion, Asset, Audio, RuntimeCanvas, And E2E Anchors

**Started**: 2026-06-26 19:29 **Completed**: 2026-06-26 19:29 **Duration**: 1 minute

**Notes**:

* Inventoried `renderer.ts` and confirmed resize work is routed through `createAnimationFrameTask`, with synchronous `resize()` canceling pending scheduled resize work before measuring immediately.
* Inventoried reduced-motion setup and confirmed throwing `matchMedia`, modern listeners, legacy listeners, listener-less objects, and idempotent cleanup are covered by source helpers and lifecycle tests.
* Inventoried renderer cleanup and confirmed catch-path cleanup emits errors, disposes audio/effects/input/subscriptions, cancels frame tasks, destroys transient sprites, and destroys partial Pixi applications.
* Inventoried `assets.ts`, `audio.ts`, RuntimeCanvas, renderer lifecycle tests, asset tests, audio tests, RuntimeCanvas tests, and AI Rogue e2e smoke anchors.
* Identified the main missing evidence: no existing `renderer-mount-failures.test.ts` harness directly proves Pixi init rejection, atlas load rejection, missing texture source rejection, and partial app destroy cleanup.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added current evidence map and inventory evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T003 complete and updated progress.

**Verification**:

* Command/check: `nl -ba src/extensions/ai-rogue/runtime/renderer.ts | sed -n '340,710p;900,1010p;1680,1785p'`
  * Result: PASS - inspected scheduling, resize, mount, catch cleanup, and reduced-motion helper code.
  * Evidence: source shows `scheduledResize`, `resize()`, `cleanupResize`, catch-path cleanup, `destroyPartialPixiApplication`, `resolveReducedMotionMediaQuery`, and `subscribeReducedMotion`.
* Command/check: `rg -n "animation frame|ResizeObserver|resize|reduced|matchMedia|addListener|feedback|cache|projection|sprite" src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - current lifecycle tests cover resize task coalescing, reduced-motion fallback matrix, projection cache behavior, and transient sprite cleanup.
  * Evidence: matches include animation-frame task coalescing, throwing `matchMedia`, modern listener cleanup, legacy listener cleanup, listener-less objects, projection cache, and feedback sprites.
* Command/check: `rg -n "load|texture source|preferWorkers|nearest|atlas" src/extensions/ai-rogue/runtime/__tests__/assets.test.ts`
  * Result: PASS - current asset tests cover metadata, worker preferences, nearest-neighbor texture setup, and explicit frame/texture errors.
  * Evidence: matches include `disables Pixi texture workers before loading atlases` and `texture source is unavailable`.
* Command/check: `rg -n "AudioContext|constructor|fetch|decode|dispose|heartbeat|music|silent|no-op|race" src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - current audio tests cover missing context, constructor failure, fetch failure, decode failure, and dispose-before-decode.
  * Evidence: matches include tests for silent no-op, construction failure, failed fetch, failed decode, and no start after dispose-before-decode.
* Command/check: `rg -n "runtime error|Runtime error|failed to initialize|mount|rejection|loading" src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx`
  * Result: PASS - RuntimeCanvas already covers product-facing loading and error states for rejected runtime mounts.
  * Evidence: matches include `surfaces rejected runtime mounts through product-facing loading and error states`.
* Command/check: `rg -n "nonblank|resize|keyboard|cleanup|remount|canvas" tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - AI Rogue browser smoke covers nonblank canvas, resize/input, route exit cleanup, and clean remount.
  * Evidence: matches include runtime canvas mount, resize reporting, keyboard input, route exit destroy, and remount tests.
* UI product-surface check: PASS - inspected RuntimeCanvas error path; normal Play surface exposes loading/error product copy, not implementation telemetry panels.
* UI craft check: PASS - no UI source changed; existing RuntimeCanvas error overlay uses product-facing copy and disabled controls.

**BQC Fixes**:

* None - inventory only; no source change yet.

***

### Task T004 - Create Implementation Notes Scaffold For Scheduler, Reduced-Motion, Pixi/Asset Failure, Audio, And Gate Evidence

**Started**: 2026-06-26 19:28 **Completed**: 2026-06-26 19:29 **Duration**: 1 minute

**Notes**:

* Created and populated the Session 04 implementation notes artifact.
* Added session metadata, progress, environment, working-tree baseline, current evidence map, source repair decisions, command evidence, blockers, and task log sections.
* Recorded BQC as active because this session verifies and may adjust application renderer/audio behavior.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Created and populated the implementation evidence ledger scaffold.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T004 complete and updated progress.

**Verification**:

* Command/check: `rg -n "^## Session Progress|^## Environment|^## Working Tree Baseline|^## Current Evidence Map|^## Source Repair Decisions|^## Command Evidence|^## Blockers|^## Task Log" .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md`
  * Result: PASS - required ledger scaffold sections are present.
  * Evidence: ripgrep returned headings for progress, environment, working tree, evidence map, source repair decisions, command evidence, blockers, and task log.
* Command/check: targeted inspection of `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md`
  * Result: PASS - scaffold includes session ID, timestamps, BQC status, environment evidence, current evidence map, repair-decision table, and setup task logs.
  * Evidence: implementation notes now contain setup task evidence and are ready for task-by-task coverage logs.
* UI product-surface check: N/A - spec-system artifact only; no user-facing UI changed.
* UI craft check: N/A - spec-system artifact only.

**BQC Fixes**:

* None - evidence scaffold only.

***

### Task T005 - Verify Animation-Frame Resize Coalescing And Cancel Semantics

**Started**: 2026-06-26 19:31 **Completed**: 2026-06-26 19:31 **Duration**: 1 minute

**Notes**:

* Verified the existing animation-frame task helper coalesces repeated schedules until the queued frame runs.
* Verified cancel semantics clear pending state and call the frame source cancel method.
* Verified `renderer.ts` uses this helper for `scheduledResize`, while synchronous controller `resize()` cancels pending scheduled work before measuring immediately.
* No renderer source repair was required.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T005 evidence and resize repair decision.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T005 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - renderer lifecycle suite passed.
  * Evidence: Vitest reported 1 file and 7 tests passed; the suite includes `coalesces repeated animation-frame task schedules until the frame runs`.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - resize scheduling is bounded by the animation-frame task helper.
  * Evidence: source uses `scheduledResize = createAnimationFrameTask(...)`, `scheduleResize()` only schedules when not destroyed, and `resize()` cancels pending scheduled work before `performResize()`.
* UI product-surface check: N/A - renderer lifecycle verification only; no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None - existing resource cleanup and scheduler coalescing behavior passed focused tests.

***

### Task T006 - Verify Reduced-Motion Fallback Matrix And Cleanup

**Started**: 2026-06-26 19:31 **Completed**: 2026-06-26 19:31 **Duration**: 1 minute

**Notes**:

* Verified throwing `matchMedia` falls back to standard motion without throwing during sync or cleanup.
* Verified modern `addEventListener`/`removeEventListener` subscriptions notify and clean up idempotently.
* Verified legacy `addListener`/`removeListener` subscriptions notify and clean up idempotently.
* Verified listener-only and listener-less media query objects degrade to no-op cleanup.
* No renderer source repair was required.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T006 evidence and reduced-motion repair decision.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T006 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - reduced-motion fallback coverage passed with the full renderer lifecycle suite.
  * Evidence: Vitest reported 1 file and 7 tests passed; the suite includes throwing `matchMedia`, modern listener cleanup, legacy listener cleanup, and listener-less object cases.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - reduced-motion setup catches unavailable browser APIs and returns no-op or idempotent cleanup.
  * Evidence: source catches `window.matchMedia`, supports modern and legacy subscriptions, and wraps cleanup with `createIdempotentCleanup`.
* UI product-surface check: N/A - renderer lifecycle verification only; no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None - existing failure path and cleanup behavior passed focused tests.

***

### Task T007 - Verify Render Projection Cache And Transient Feedback Sprite Cleanup

**Started**: 2026-06-26 19:31 **Completed**: 2026-06-26 19:31 **Duration**: 1 minute

**Notes**:

* Verified projection cache reuse remains bounded for unchanged render inputs.
* Verified lifecycle cache clears produce fresh projections after simulated start, reset, load, and destroy boundaries.
* Verified inactive transient `feedback:*` sprites are destroyed while persistent inactive sprites are hidden.
* No renderer source repair was required.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T007 evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T007 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - render cache and sprite cleanup coverage passed with the full renderer lifecycle suite.
  * Evidence: Vitest reported 1 file and 7 tests passed; the suite includes `bounds unchanged projection rebuilds until renderer lifecycle clears the cache` and `destroys inactive feedback sprites while hiding persistent inactive sprites`.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - renderer cleanup clears projection cache and destroys sprite pools on destroy and catch paths.
  * Evidence: source calls `clearRenderProjectionCache()` and `destroySpritePool(spritePool)` on controller destroy and initialization failure catch paths.
* UI product-surface check: N/A - renderer lifecycle verification only; no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None - existing resource cleanup behavior passed focused tests.

***

### Task T008 - Create Pixi/WebGL Mount-Failure Harness For Application.init Rejection

**Started**: 2026-06-26 19:32 **Completed**: 2026-06-26 19:35 **Duration**: 3 minutes

**Notes**:

* Added a focused happy-dom renderer mount-failure spec with a mocked `pixi-runtime` module.
* Verified `Application.init` rejection propagates as a rejected mount, emits a runtime error event, destroys the partial Pixi application, does not attempt atlas loading, and leaves no mounted runtime canvas in the host.
* No renderer source repair was required because the existing catch path handled the failure.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts` - Created Pixi runtime mock and init-rejection cleanup coverage.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T008 evidence and Pixi cleanup repair decision.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T008 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`
  * Result: PASS - renderer mount-failure suite passed.
  * Evidence: Vitest reported 1 file and 3 tests passed; coverage includes `destroys partial Pixi application state when Application.init rejects`.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`
  * Result: PASS - test asserts partial app destroy, no atlas load, no host canvas, and error event message for WebGL/Pixi init rejection.
  * Evidence: assertions check `app.destroy({ removeView: true }, { children: true })`, zero `Assets.load` calls, null host canvas query, and `message: "WebGL unavailable"`.
* UI product-surface check: N/A - lower-level renderer mount test only; RuntimeCanvas product-facing error surface is covered separately.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* Failure path completeness: Added direct coverage for Pixi init rejection and partial resource cleanup (`src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`).

***

### Task T009 - Create Atlas Asset-Load Failure Harness For Load Rejection And Missing Texture Source

**Started**: 2026-06-26 19:32 **Completed**: 2026-06-26 19:35 **Duration**: 3 minutes

**Notes**:

* Extended the new renderer mount-failure spec to cover rejected Pixi `Assets.load`.
* Added missing texture-source coverage at the renderer mount level. The test verifies the renderer loads gameplay and UI atlas textures before frame texture creation rejects with the explicit gameplay texture-source error.
* Verified each asset failure emits a runtime error event, destroys the partial Pixi app, and leaves no mounted runtime canvas in the host.
* Adjusted an initial test-harness assertion to match the actual renderer sequence: missing texture source is detected after both atlas textures load and before frame textures are created.
* No `assets.ts` or `renderer.ts` source repair was required.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts` - Added `Assets.load` rejection and missing texture-source mount coverage.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T009 evidence and asset propagation repair decision.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T009 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`
  * Result: PASS - renderer mount-failure suite passed.
  * Evidence: Vitest reported 1 file and 3 tests passed; coverage includes `destroys partial Pixi application state when atlas loading rejects` and `rejects missing atlas texture sources before mounting a runtime canvas`.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`
  * Result: PASS - test asserts worker preference setup, atlas load calls, controlled rejection messages, partial app destroy, and no mounted host canvas.
  * Evidence: assertions cover `preferWorkers: false`, gameplay/UI atlas URL load order, `atlas load failed`, and `AI Rogue gameplay atlas texture source is unavailable.`
* UI product-surface check: N/A - lower-level renderer mount test only; RuntimeCanvas product-facing error surface is covered separately.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* Failure path completeness: Added direct coverage for Pixi asset load rejection and missing texture-source mount rejection (`src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`).

***

### Task T010 - Verify Audio Fallback Tests For Context, Fetch/Decode, Heartbeat/Music Dispose, And Dispose Race

**Started**: 2026-06-26 19:35 **Completed**: 2026-06-26 19:35 **Duration**: 1 minute

**Notes**:

* Verified existing audio fallback coverage for missing `AudioContext`, constructor failure, fetch failure, decode failure, and dispose-before-decode races.
* Added explicit coverage that active heartbeat and music sources are stopped when the audio engine is disposed.
* No `audio.ts` source repair was required because the existing disposal path stopped active handles and closed the context.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts` - Added active heartbeat/music source tracking and disposal assertions.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T010 evidence and audio repair decision.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T010 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - audio fallback suite passed.
  * Evidence: Vitest reported 1 file and 6 tests passed, including the new active heartbeat/music dispose test.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - fake audio context now tracks created sources and asserts `start`, `stop`, and context `close` during dispose.
  * Evidence: new test `stops active heartbeat and music sources during dispose` waits for two decoded sources, disposes the engine, and checks both sources are stopped.
* UI product-surface check: N/A - audio engine test only; no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* Resource cleanup: Added direct coverage for stopping active heartbeat and music sources during audio engine disposal (`src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`).

***

### Task T011 - Repair Resize Scheduling Only If Bounded Tests Fail

**Started**: 2026-06-26 19:36 **Completed**: 2026-06-26 19:37 **Duration**: 1 minute

**Notes**:

* Reviewed the bounded resize/scheduler evidence from T005.
* Decided no `renderer.ts` repair is required because focused lifecycle tests pass and source already preserves the synchronous controller `resize()` API.
* Cleanup on scope exit is already covered by `cleanupResize()`, controller destroy, and catch-path cancellation of scheduled frame tasks.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T011 no-repair evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T011 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - renderer lifecycle suite passed.
  * Evidence: Vitest reported 1 file and 7 tests passed, including animation-frame coalescing and cancel semantics.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - no repair required.
  * Evidence: `scheduleResize()` uses the coalesced animation-frame task, `resize()` cancels pending scheduled resize before `performResize()`, and destroy/catch paths cancel scheduled frame work.
* UI product-surface check: N/A - renderer scheduler no-repair decision only; no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None - existing resource cleanup and scheduling behavior passed focused tests.

***

### Task T012 - Repair Reduced-Motion Subscription Only If Fallback Tests Fail

**Started**: 2026-06-26 19:36 **Completed**: 2026-06-26 19:37 **Duration**: 1 minute

**Notes**:

* Reviewed the reduced-motion fallback evidence from T006.
* Decided no `renderer.ts` repair is required because throwing, modern, legacy, listener-less, and idempotent cleanup cases pass.
* Existing source already degrades to no-op cleanup when media-query APIs are unavailable or throw.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T012 no-repair evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T012 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - reduced-motion fallback coverage passed with the full renderer lifecycle suite.
  * Evidence: Vitest reported 1 file and 7 tests passed, including throwing `matchMedia`, modern listener cleanup, legacy listener cleanup, and listener-less media query objects.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - no repair required.
  * Evidence: `resolveReducedMotionMediaQuery()` catches `matchMedia`, `subscribeReducedMotion()` supports modern and legacy APIs, and cleanup is idempotent.
* UI product-surface check: N/A - renderer browser-subscription no-repair decision only.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None - existing failure path and cleanup behavior passed focused tests.

***

### Task T013 - Repair Pixi Initialization And Partial Cleanup Only If Mount-Failure Tests Fail

**Started**: 2026-06-26 19:36 **Completed**: 2026-06-26 19:37 **Duration**: 1 minute

**Notes**:

* Reviewed the Pixi init rejection evidence from T008.
* Decided no `renderer.ts` repair is required because the new mount-failure harness proves partial app destroy cleanup, controlled error events, no atlas load after init failure, and no mounted canvas.
* Existing catch-path cleanup preserves the original initialization error.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T013 no-repair evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T013 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`
  * Result: PASS - renderer mount-failure suite passed.
  * Evidence: Vitest reported 1 file and 3 tests passed, including `Application.init` rejection cleanup.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - no repair required.
  * Evidence: catch path calls `emitError(error)`, disposes acquired resources, cancels scheduled frame work, destroys sprite pool, and calls `destroyPartialPixiApplication(app)`.
* UI product-surface check: N/A - lower-level renderer no-repair decision only; product-facing mount rejection is covered by T016.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None beyond T008 test coverage - existing renderer cleanup passed focused mount-failure tests.

***

### Task T014 - Repair Atlas Texture Loading Or Error Propagation Only If Asset Failure Tests Fail

**Started**: 2026-06-26 19:36 **Completed**: 2026-06-26 19:37 **Duration**: 1 minute

**Notes**:

* Reviewed asset metadata, Pixi worker preference, rejected `Assets.load`, and missing texture-source evidence from T009 plus the focused asset suite.
* Decided no `assets.ts` repair is required because errors are explicit and safely propagate through the renderer mount catch path.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T014 no-repair evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T014 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/assets.test.ts`
  * Result: PASS - focused asset suite passed.
  * Evidence: Vitest reported 1 file and 8 tests passed, including metadata validation, worker preferences, nearest-neighbor setup, and explicit frame/texture errors.
* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts`
  * Result: PASS - renderer mount-failure suite passed.
  * Evidence: Vitest reported 1 file and 3 tests passed, including rejected atlas load and missing texture-source mount rejection.
* UI product-surface check: N/A - asset loader no-repair decision only; product-facing mount rejection is covered by T016.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None beyond T009 test coverage - existing asset error propagation passed focused tests.

***

### Task T015 - Repair Audio Silent Fallback And Disposal Only If Tests Expose Failures

**Started**: 2026-06-26 19:36 **Completed**: 2026-06-26 19:37 **Duration**: 1 minute

**Notes**:

* Reviewed audio fallback and disposal evidence from T010.
* Decided no `audio.ts` repair is required because missing context, construction failure, fetch/decode failure, active heartbeat/music disposal, and dispose-before-decode races all pass.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T015 no-repair evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T015 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - audio fallback suite passed.
  * Evidence: Vitest reported 1 file and 6 tests passed, including active heartbeat/music dispose and dispose-before-decode coverage.
* Command/check: targeted inspection of `src/extensions/ai-rogue/runtime/audio.ts`
  * Result: PASS - no repair required.
  * Evidence: source returns a silent engine without Web Audio, catches constructor/fetch/decode failures, marks handles stopped, stops active sources on dispose, clears cache, and closes context.
* UI product-surface check: N/A - audio engine no-repair decision only; no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None beyond T010 test coverage - existing silent fallback and disposal behavior passed focused tests.

***

### Task T016 - Repair RuntimeCanvas Mount Rejection Fallback Only If Product-Facing Error State Fails

**Started**: 2026-06-26 19:36 **Completed**: 2026-06-26 19:37 **Duration**: 1 minute

**Notes**:

* Ran focused RuntimeCanvas tests after adding lower-level renderer mount-failure coverage.
* Decided no `runtime-canvas.tsx` repair is required because rejected runtime mounts show product-facing loading and error states, disable start controls, clear canvas, and update the assistive status region.
* Existing user-facing error copy remains product-facing; lower-level diagnostics stay in tests and implementation evidence.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T016 no-repair evidence and RuntimeCanvas repair decision.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T016 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx`
  * Result: PASS - focused RuntimeCanvas suite passed.
  * Evidence: Vitest reported 1 file and 13 tests passed, including `surfaces rejected runtime mounts through product-facing loading and error states`.
* Command/check: targeted inspection of `src/extensions/ai-rogue/views/runtime-canvas.tsx`
  * Result: PASS - no repair required.
  * Evidence: source maps mount rejection to `phase === "error"`, `Runtime error` notice copy, disabled controls, and assistive summary update.
* UI product-surface check: PASS - RuntimeCanvas test asserts normal rejected-mount UI shows loading/error product copy and no canvas, not debug panels or implementation telemetry.
* UI craft check: PASS - no UI source changed; existing loading/error overlay remains bounded in the runtime host and controls disable cleanly.

**BQC Fixes**:

* None - existing product-facing failure path passed focused component tests.

***

### Task T017 - Update Implementation Notes With Source Repair Decisions And Caveats

**Started**: 2026-06-26 19:38 **Completed**: 2026-06-26 19:38 **Duration**: 1 minute

**Notes**:

* Added the Session 04 evidence summary across renderer scheduling, reduced-motion browser APIs, Pixi/WebGL init failure, atlas asset failure, audio fallback/disposal, and RuntimeCanvas product surface.
* Recorded that no repairs were required in `renderer.ts`, `assets.ts`, `audio.ts`, or `runtime-canvas.tsx`.
* Routed storage quota and blocked IndexedDB behavior to Session 05 per the Phase 35 PRD and Session 04 spec.
* Recorded that hardware-specific WebGL fault injection is represented by `Application.init` rejection coverage plus browser runtime smoke rather than a host-specific GPU failure.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added evidence summary, no-change decisions, caveats, and T017 task log.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T017 complete and updated progress.

**Verification**:

* Command/check: targeted inspection of `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md`
  * Result: PASS - implementation notes now include source repair decisions, evidence summary, no-change decisions, caveats, and task logs through T017.
  * Evidence: file contains `## Source Repair Decisions`, `## Session 04 Evidence Summary`, `## No-Change Decisions And Caveats`, and task entries T001 through T017.
* Command/check: `rg -n "^## Source Repair Decisions|^## Session 04 Evidence Summary|^## No-Change Decisions And Caveats|Task T017" .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md`
  * Result: PASS - expected evidence sections and T017 entry are present.
  * Evidence: ripgrep returned all four section/task anchors.
* UI product-surface check: N/A - spec-system evidence artifact only.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* None - evidence update only.

***

### Task T018 - Run Focused Renderer, Asset, Audio, And RuntimeCanvas Tests

**Started**: 2026-06-26 19:39 **Completed**: 2026-06-26 19:39 **Duration**: 1 minute

**Notes**:

* Ran the focused Session 04 Vitest command after adding mount-failure and audio disposal coverage.
* Confirmed renderer lifecycle, renderer mount-failure, asset, audio, and RuntimeCanvas suites pass together.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T018 focused-test evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T018 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts src/extensions/ai-rogue/runtime/__tests__/assets.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx`
  * Result: PASS - focused Session 04 unit/component tests passed.
  * Evidence: Vitest reported 5 files and 37 tests passed.
* UI product-surface check: PASS - RuntimeCanvas focused suite included rejected mount loading/error product-surface assertions.
* UI craft check: PASS - no UI source changed; focused component tests passed with existing bounded overlay/control behavior.

**BQC Fixes**:

* None - focused test gate passed after prior test coverage additions.

***

### Task T019 - Run AI Rogue Runtime Playwright Smoke

**Started**: 2026-06-26 19:39 **Completed**: 2026-06-26 19:40 **Duration**: 1 minute

**Notes**:

* Ran the focused AI Rogue runtime Playwright smoke in Chromium.
* Verified nonblank PixiJS canvas mount, resize reporting, keyboard input, real-art pixel movement, compact pointer movement, save/reset/load, combat feedback, product scenario gating, route exit cleanup, and clean remount.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T019 browser-smoke evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T019 complete and updated progress.

**Verification**:

* Command/check: `bunx playwright test tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - focused AI Rogue runtime Chromium smoke passed.
  * Evidence: Playwright reported 9 passed tests in 33.1s.
* UI product-surface check: PASS - browser smoke mounted the product Play route and verified runtime canvas, controls, resize/input behavior, and route remount without exposing debug fallback panels.
* UI craft check: PASS - canvas was nonblank, resized with viewport changes, accepted keyboard/pointer input, and cleaned up/remounted without overlapping stale canvases.

**BQC Fixes**:

* None - browser smoke passed after prior test coverage additions.

***

### Task T020 - Run Typecheck, Lint, Build, Budget, Asset, Private Runtime, And Privacy Scans

**Started**: 2026-06-26 19:40 **Completed**: 2026-06-26 19:42 **Duration**: 2 minutes

**Notes**:

* Ran the broad post-change quality gates after adding focused tests.
* Built fresh production artifacts before running budget and private-runtime checks.
* Ran a broad AI Rogue privacy/capability scan, then a stricter source-only forbidden-primitive scan that excludes tests and the approved local audio asset loader.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added T020 quality-gate evidence.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T020 complete and updated progress.

**Verification**:

* Command/check: `bun run typecheck`
  * Result: PASS - TypeScript project check passed.
  * Evidence: `tsc --noEmit` exited 0.
* Command/check: `bun run lint`
  * Result: PASS - ESLint passed.
  * Evidence: `eslint .` exited 0.
* Command/check: `bun run build`
  * Result: PASS - production client and SSR builds completed.
  * Evidence: Vite built 4,254 client modules and 4,339 SSR modules, then exited 0.
* Command/check: `bun run budget:check`
  * Result: PASS - bundle budget passed.
  * Evidence: total client JS gzip was 1490 KB / 1500 KB, CSS was 275 KB / 300 KB, and violations were 0.
* Command/check: `bash scripts/check-asset-sizes.sh`
  * Result: PASS - committed asset sizes remain within configured limits.
  * Evidence: script reported `OK: All assets within configured size limits (total: 14M)`.
* Command/check: `bun run runtime:check-private`
  * Result: PASS - private runtime artifact scan passed.
  * Evidence: script reported `Private runtime artifact check passed.`
* Command/check: `rg -n "(navigator\\.sendBeacon|gtag\\(|analytics|collector|hosted write|remote game|remoteGame|new Worker|Worker\\(|navigator\\.gpu|gpu\\.requestAdapter|/__|__live-data|fetch\\()" src/extensions/ai-rogue tests/e2e/ai-rogue*.spec.ts`
  * Result: PASS - broad scan returned only expected test no-bridge route hooks, the approved local audio asset `fetch`, and test assertion strings.
  * Evidence: matches were limited to `tests/e2e/ai-rogue*.spec.ts`, `src/extensions/ai-rogue/runtime/audio.ts`, and `src/extensions/ai-rogue/__tests__/client.test.tsx`.
* Command/check: `rg -n "(navigator\\.sendBeacon|gtag\\(|analytics|collector|hosted write|remote game|remoteGame|new Worker|Worker\\(|navigator\\.gpu|gpu\\.requestAdapter|/__|__live-data|fetch\\()" src/extensions/ai-rogue --glob '!**/__tests__/**' --glob '!src/extensions/ai-rogue/runtime/audio.ts'`
  * Result: PASS - source-only forbidden-primitive scan returned no matches.
  * Evidence: ripgrep exited 1 with no output, which means no matches were found.
* UI product-surface check: PASS - build and prior RuntimeCanvas/Playwright checks confirm normal user-facing AI Rogue surfaces do not expose new diagnostics or scaffolding copy from this session.
* UI craft check: PASS - Playwright runtime smoke and focused component tests passed after changes.

**BQC Fixes**:

* None - broad quality and boundary gates passed after prior test coverage additions.

***

### Task T021 - Validate ASCII, LF Endings, Product-Surface Copy, And Final Evidence

**Started**: 2026-06-26 19:42 **Completed**: 2026-06-26 19:43 **Duration**: 1 minute

**Notes**:

* Validated touched Session 04 artifacts and test files for whitespace, ASCII, LF endings, and Prettier formatting.
* Confirmed no `renderer.ts`, `assets.ts`, `audio.ts`, or `runtime-canvas.tsx` source repairs were made.
* Confirmed product-surface behavior remains covered by focused RuntimeCanvas tests and AI Rogue Playwright smoke.
* Confirmed final checklist is complete and the next workflow command is `creview`.

**Files Changed**:

* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md` - Added final T021 evidence and updated session progress to 21/21.
* `.spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md` - Marked T021 and the completion checklist complete.

**Verification**:

* Command/check: `git diff --check`
  * Result: PASS - no whitespace errors.
  * Evidence: command exited 0 with no output.
* Command/check: `LC_ALL=C rg -n --pcre2 "[^\\x00-\\x7F]" .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - no non-ASCII characters found.
  * Evidence: ripgrep exited 1 with no output, which means no matches were found.
* Command/check: `rg -n $'\\r' .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - no CRLF endings found.
  * Evidence: ripgrep exited 1 with no output, which means no carriage returns were found.
* Command/check: `bunx prettier --check src/extensions/ai-rogue/runtime/__tests__/renderer-mount-failures.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/implementation-notes.md .spec_system/specs/phase35-session04-renderer-robustness-and-scheduling/tasks.md`
  * Result: PASS - touched code and markdown files use Prettier style.
  * Evidence: Prettier reported `All matched files use Prettier code style!`.
* Command/check: `git diff --name-only -- src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/runtime/assets.ts src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/views/runtime-canvas.tsx`
  * Result: PASS - no runtime implementation or RuntimeCanvas source files changed.
  * Evidence: command exited 0 with no output.
* Command/check: `git status --short`
  * Result: PASS - final changed-file scope inspected.
  * Evidence: output shows pre-existing `.spec_system/state.json`, modified `audio.test.ts`, untracked Session 04 spec artifacts, and new `renderer-mount-failures.test.ts`.
* UI product-surface check: PASS - no product UI source changed; RuntimeCanvas focused test and AI Rogue Playwright smoke passed after the new coverage.
* UI craft check: PASS - Playwright smoke confirmed nonblank canvas, resize/input behavior, route cleanup, and clean remount.

**BQC Fixes**:

* None - final evidence and file-quality checks passed.

***


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