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

# Implementation Notes

**Session ID**: `phase34-session04-renderer-lifecycle-and-robustness` **Started**: 2026-06-26 04:10 **Last Updated**: 2026-06-26 04:36

***

## Session Progress

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

***

## Task Log

### Task T020 - Validate ASCII/LF and complete session checklist

**Started**: 2026-06-26 04:34 **Completed**: 2026-06-26 04:36 **Duration**: 2 minutes

**Notes**:

* Updated the task checklist to 20/20 and marked the completion checklist ready for `creview`.
* Ran final formatting on session notes and tasks before final ASCII/LF and task-completion checks.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded final validation evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T020 and completion checklist complete.

**Verification**:

* Command/check: `bunx prettier --write .spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md .spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md`
  * Result: PASS - Session Markdown files formatted.
  * Evidence: Prettier completed for both files.
* Command/check: `rg -n "^- \\[ \\] T[0-9]{3}" .spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md || true`
  * Result: PASS - No unchecked task lines remain.
  * Evidence: Command produced no output.
* Command/check: `files=$( { git diff --name-only -- .; git ls-files --others --exclude-standard; } | sort -u ); ascii_fail=0; crlf_fail=0; while IFS= read -r file; do [ -f "$file" ] || continue; if LC_ALL=C grep -nP '[^\\x00-\\x7F]' "$file" >/tmp/aios-s3404-nonascii 2>/dev/null; then echo "NON_ASCII $file"; cat /tmp/aios-s3404-nonascii; ascii_fail=1; fi; if grep -n $'\\r' "$file" >/tmp/aios-s3404-crlf 2>/dev/null; then echo "CRLF $file"; cat /tmp/aios-s3404-crlf; crlf_fail=1; fi; done <<< "$files"; rm -f /tmp/aios-s3404-nonascii /tmp/aios-s3404-crlf; if [ "$ascii_fail" -eq 0 ] && [ "$crlf_fail" -eq 0 ]; then echo "ASCII_LF_OK changed_files=$(printf '%s\\n' "$files" | sed '/^$/d' | wc -l)"; else exit 1; fi`
  * Result: PASS - All changed and untracked text files are ASCII with LF line endings.
  * Evidence: Final scan reported `ASCII_LF_OK`.
* UI product-surface check: PASS - Final checklist confirms no production UI product-surface changes beyond renderer internals and test assertions.
* UI craft check: N/A - No production UI layout or styling changed.

***

### Task T019 - Run bridge, hosted-write, asset, dependency, and product-surface checks

**Started**: 2026-06-26 04:33 **Completed**: 2026-06-26 04:34 **Duration**: 1 minute

**Notes**:

* Ran production diff scans for bridge calls, hosted writes, remote loading, analytics, workers, cookies, and debug/product-surface copy.
* Confirmed no new AI Rogue assets and no dependency/lockfile changes.
* Confirmed production UI view/route/component files were not changed in this session.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded safety spot-check evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T019 complete and updated progress.

**Verification**:

* Command/check: `git diff -- src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/views/runtime-canvas.tsx src/extensions/ai-rogue/views/play-view.tsx | rg -n "/__|fetch\\(|sendBeacon|analytics|collector|hosted write|hosted|XMLHttpRequest|document\\.cookie|new Worker|Function\\(" || true`
  * Result: PASS - No production diff matches.
  * Evidence: Command produced no output.
* Command/check: `git diff --name-only -- src/assets/ai-rogue docs/extensions/ai-rogue/generated`
  * Result: PASS - No new or modified AI Rogue assets.
  * Evidence: Command produced no output.
* Command/check: `git diff --name-only -- package.json bun.lock package-lock.json pnpm-lock.yaml yarn.lock`
  * Result: PASS - No dependency or lockfile changes.
  * Evidence: Command produced no output.
* Command/check: `git diff -- src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/views/runtime-canvas.tsx src/extensions/ai-rogue/views/play-view.tsx | rg -n "debug|telemetry|readiness|shell ready|route ownership|data-source|resize readout|runtime boundary|Runtime boundary" || true`
  * Result: PASS - No product-surface diagnostic copy added in production diff.
  * Evidence: Command produced no output.
* UI product-surface check: PASS - No production route/view/component diff; runtime-canvas changes are test-only.
* UI craft check: N/A - No production UI layout or styling changed.

***

### Task T018 - Run typecheck, lint, and format check

**Started**: 2026-06-26 04:30 **Completed**: 2026-06-26 04:33 **Duration**: 3 minutes

**Notes**:

* Initial gate run found test mock typing issues, renderer Prettier formatting, one redundant boolean cast, and Markdown formatting drift after notes/task updates.
* Fixed the test typings, removed the redundant boolean cast, and ran Prettier on session-touched files.
* Reran all three required gates successfully.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Removed redundant boolean cast and applied Prettier formatting.
* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Tightened mock function typings.
* `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts` - Tightened deferred decode callback typing.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded gate evidence and applied Prettier formatting.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T018 complete, updated progress, and applied Prettier formatting.

**Verification**:

* Command/check: `bun run typecheck`
  * Result: PASS - TypeScript `tsc --noEmit` exited 0.
  * Evidence: Rerun produced no type errors.
* Command/check: `bun run lint`
  * Result: PASS - ESLint exited 0.
  * Evidence: Rerun produced no lint errors.
* Command/check: `bun run format:check`
  * Result: PASS - Prettier check exited 0.
  * Evidence: Output reported `All matched files use Prettier code style!`.
* UI product-surface check: N/A - Quality gate run only; no visible route copy changed in this task.
* UI craft check: N/A - No UI layout or styling changed in this task.

**BQC Fixes**:

* Contract alignment: Typecheck caught and resolved narrow test mock type mismatches.

***

### Task T017 - Run AI Rogue runtime Playwright coverage

**Started**: 2026-06-26 04:28 **Completed**: 2026-06-26 04:30 **Duration**: 2 minutes

**Notes**:

* Ran the browser runtime spec covering Play mount, resize, keyboard input, pause gating, compact pointer input, save/reset/load, scripted combat feedback, scenario query gating, route cleanup, and remount.
* The Playwright web server needed its normal startup retries on local ports, then completed successfully.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded Playwright evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T017 complete and updated progress.

**Verification**:

* Command/check: `bunx playwright test tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - 9 Chromium tests passed.
  * Evidence: Playwright reported `9 passed (34.7s)`.
* UI product-surface check: PASS - Browser spec asserts player-facing Play route content and hidden runtime event diagnostics.
* UI craft check: PASS - Browser spec verifies visible canvas mount, resize behavior, compact pointer input, route exit cleanup, and remount.

***

### Task T016 - Run focused AI Rogue Vitest suite

**Started**: 2026-06-26 04:27 **Completed**: 2026-06-26 04:28 **Duration**: 1 minute

**Notes**:

* Ran the focused AI Rogue unit/integration suite after renderer, audio, and bridge changes.
* The broader extension suite passed with the new audio test file included.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded focused AI Rogue suite evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T016 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue`
  * Result: PASS - 43 test files and 288 tests passed.
  * Evidence: Vitest reported `Test Files 43 passed (43)` and `Tests 288 passed (288)`.
* UI product-surface check: PASS - AI Rogue bridge tests in this suite cover product-facing runtime notices.
* UI craft check: N/A - Test run only; no UI layout or styling changed.

***

### Task T015 - Run focused renderer, audio, and runtime-canvas Vitest coverage

**Started**: 2026-06-26 04:26 **Completed**: 2026-06-26 04:27 **Duration**: 1 minute

**Notes**:

* Ran the focused Vitest command required by the session quality gate.
* The command includes renderer lifecycle, audio fallback, and runtime-canvas bridge coverage.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded focused test evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T015 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__/audio.test.ts src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx`
  * Result: PASS - 3 test files and 21 tests passed.
  * Evidence: Vitest reported `Test Files 3 passed (3)` and `Tests 21 passed (21)`.
* UI product-surface check: PASS - Runtime-canvas tests assert product-facing loading/error/unavailable/offline notices.
* UI craft check: N/A - Test run only; no UI layout or styling changed.

***

## Fallback Coverage Map

| Fallback path                             | Coverage status                                                                        | Evidence                                                                                                                                                                                                            |
| ----------------------------------------- | -------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Pixi setup failure                        | Covered by bridge-level rejected mount test and renderer catch-path source inspection. | `runtime-canvas.test.tsx` rejects `mountAiRogueRuntime` and asserts product-facing loading/error states; `renderer.ts` catch path emits error, releases partial resources, destroys partial Pixi app, and rethrows. |
| Asset-load failure propagation            | Covered by renderer source inspection plus bridge rejected-mount propagation.          | `renderer.ts` awaits `loadGameplayAtlasTexture` and `loadUiAtlasTexture` inside the guarded setup block; failures flow to the shared catch, then to runtime-canvas error handling.                                  |
| Reduced-motion media-query fallback       | Covered by focused renderer unit tests.                                                | `renderer-lifecycle.test.ts` covers throwing `matchMedia`, legacy listener APIs, listener-only objects, listener-less objects, and idempotent cleanup.                                                              |
| Audio unavailable and failed decode/fetch | Covered by focused audio unit tests.                                                   | `audio.test.ts` covers no `AudioContext`, constructor failure, failed fetch, failed decode, and dispose before decode resolves.                                                                                     |
| Storage fallback                          | Existing coverage retained; no storage implementation changed this session.            | `persistence.test.ts` covers unavailable/read-failed IndexedDB, transaction rollback, scoped reset, and malformed preferences; `use-save-state.test.tsx` covers denied storage state.                               |

***

### Task T014 - Record fallback coverage map

**Started**: 2026-06-26 04:25 **Completed**: 2026-06-26 04:26 **Duration**: 1 minute

**Notes**:

* Recorded the fallback coverage map for Pixi setup failure, asset-load failure propagation, media-query fallback, audio fallback, and existing storage fallback coverage.
* Distinguished direct unit coverage from source-inspection plus bridge-level propagation evidence.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Added fallback coverage map and task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T014 complete and updated progress.

**Verification**:

* Command/check: `rg -n "Fallback Coverage Map|Pixi setup failure|Asset-load failure propagation|Reduced-motion media-query fallback|Audio unavailable|Storage fallback" .spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md`
  * Result: PASS - Fallback map is present in implementation notes.
  * Evidence: Map includes all required fallback categories.
* Command/check: `rg -n "localStorage|indexedDB|quota|fallback|unavailable|malformed|storage|denied|read failure|write failure|transaction" src/extensions/ai-rogue/__tests__/persistence.test.ts src/extensions/ai-rogue/__tests__/use-save-state.test.tsx src/extensions/ai-rogue/__tests__/save-schema.test.ts`
  * Result: PASS - Existing storage fallback tests are present.
  * Evidence: Matches include unavailable/read-failed IndexedDB, transaction rollback, malformed preferences, and denied storage state.
* UI product-surface check: N/A - Implementation notes only.
* UI craft check: N/A - No UI layout or styling changed.

***

### Task T013 - Add runtime canvas setup-failure coverage

**Started**: 2026-06-26 04:20 **Completed**: 2026-06-26 04:25 **Duration**: 5 minutes

**Notes**:

* Added a rejected runtime mount test that verifies product-facing loading and error states, empty-save status copy, disabled controls, and no mounted canvas.
* Added unavailable and offline notice coverage to keep bridge fallback states product-facing.
* No runtime-canvas production code was needed; the existing bridge behavior already supported the desired state transitions.

**Files Changed**:

* `src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx` - Added rejected mount, unavailable, and offline bridge tests.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T013 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx`
  * Result: PASS - 1 test file and 11 tests passed.
  * Evidence: New tests assert `Runtime loading`, `Runtime error`, `Runtime error / saves empty`, disabled start control after rejected mount, no runtime canvas, `Runtime unavailable`, and `Offline` states.
* UI product-surface check: PASS - Test assertions inspect product-facing notices and confirm no debug canvas or stack copy appears after rejected mount.
* UI craft check: PASS - Existing route copy and controls are reused; no UI styling changed.

**BQC Fixes**:

* Failure path completeness: Rejected renderer mount is covered by product-facing error-state tests.
* Product surface discipline: Tests assert user-facing notices rather than exposing implementation diagnostics.

***

### Task T012 - Add Web Audio fallback tests

**Started**: 2026-06-26 04:18 **Completed**: 2026-06-26 04:24 **Duration**: 6 minutes

**Notes**:

* Added focused audio tests around the existing optional Web Audio behavior.
* Covered unavailable `AudioContext`, constructor failure, failed fetch, failed decode, and dispose-before-decode.
* Kept assertions at no-throw/no-start/no-leak boundaries instead of browser playback details.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts` - Added Web Audio fallback tests.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T012 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - 1 test file and 5 tests passed.
  * Evidence: Tests cover silent engine fallback, failed constructor, failed fetch, failed decode, and dispose before decode resolves.
* UI product-surface check: N/A - Runtime audio unit tests only.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Failure path completeness: Audio fallback tests prove expected no-throw behavior across unavailable and failed platform paths.
* Resource cleanup: Dispose-before-decode test verifies decoded audio does not start after disposal and context close is requested.

***

### Task T011 - Add resize coalescing and reduced-motion fallback tests

**Started**: 2026-06-26 04:15 **Completed**: 2026-06-26 04:23 **Duration**: 8 minutes

**Notes**:

* Added scheduler seam coverage proving repeated schedules before a frame coalesce into one frame task.
* Added reduced-motion coverage for throwing `matchMedia`, legacy listeners, listener-only objects, listener-less objects, and idempotent cleanup.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Added resize scheduler and reduced-motion fallback tests.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/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 - 1 test file and 5 tests passed.
  * Evidence: Tests assert one RAF request for repeated schedules, cancel behavior, throwing `matchMedia` fallback, legacy listener callback, and safe cleanup without remove APIs.
* UI product-surface check: N/A - Unit test change only.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Resource cleanup: Tests guard scheduled frame cancellation and reduced-motion subscription cleanup.
* Failure path completeness: Tests guard degraded browser media-query behavior.

***

### Task T010 - Update feedback and persistent sprite lifecycle tests

**Started**: 2026-06-26 04:15 **Completed**: 2026-06-26 04:22 **Duration**: 7 minutes

**Notes**:

* Replaced the old characterization that expected stale feedback sprites to remain hidden in the pool.
* Added regression coverage that stale `feedback:*` IDs are removed and destroyed while persistent inactive sprite IDs remain reusable and hidden.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Updated feedback sprite lifecycle test.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T010 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - 1 test file and 5 tests passed.
  * Evidence: Test asserts destroyed stale feedback IDs `feedback-event-0..2`, hidden persistent `tile:stale-floor`, and retained active/persistent sprite pool size.
* UI product-surface check: N/A - Unit test change only.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Resource cleanup: Regression coverage now guards transient sprite destruction and persistent sprite reuse.

***

### Task T009 - Cancel pending frames and release partial resources

**Started**: 2026-06-26 04:14 **Completed**: 2026-06-26 04:21 **Duration**: 7 minutes

**Notes**:

* Added separate scheduled render and scheduled resize cancellation.
* Destroy path now cancels both scheduled frame tasks and centralizes sprite pool destruction.
* Mount failure catch path now disposes partial audio/effects, input, pointer/visibility/reduced-motion/blur/resize cleanup, scheduled frames, sprite pool, and partial Pixi app before rethrowing the original error.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Hardened destroy and catch cleanup paths.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T009 complete and updated progress.

**Verification**:

* Command/check: `rg -n "scheduledRender.cancel|scheduledResize.cancel|cleanupResize\\(\\)|destroySpritePool|audio\\?\\.dispose\\(\\)|effects\\?\\.destroy\\(\\)|destroyPartialPixiApplication" src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - Destroy and catch paths include cancellation and partial resource cleanup.
  * Evidence: Both normal destroy and mount failure catch paths cancel scheduled frames and release scoped resources.
* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - 1 test file and 5 tests passed.
  * Evidence: Lifecycle helper coverage remains passing after cleanup changes.
* UI product-surface check: N/A - Renderer lifecycle cleanup only; no visible route copy changed.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Resource cleanup: Destroy and failed mount paths now release scheduled frames and partial runtime resources consistently.
* Failure path completeness: Failed renderer setup preserves product error propagation while cleaning partial resources.

***

### Task T008 - Harden reduced-motion media-query setup

**Started**: 2026-06-26 04:14 **Completed**: 2026-06-26 04:20 **Duration**: 6 minutes

**Notes**:

* Wrapped reduced-motion `matchMedia` access so missing or throwing browser APIs fall back to standard motion instead of failing mount.
* Added modern `addEventListener` and legacy `addListener` subscription support.
* Cleanup is idempotent and becomes a safe no-op when the media query object lacks a matching remove API.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Hardened reduced-motion query resolution, subscription, and cleanup.
* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Added throwing, legacy-listener, listener-only, and listener-less coverage.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T008 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - 1 test file and 5 tests passed.
  * Evidence: Reduced-motion tests cover throwing `matchMedia`, `addListener`/`removeListener`, listener-only modern objects, and listener-less objects.
* Command/check: `rg -n "resolveReducedMotionMediaQuery|subscribeReducedMotion|createIdempotentCleanup|addListener|addEventListener" src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - Renderer contains defensive media-query helpers and both listener styles.
  * Evidence: `createReducedMotionSync` no longer calls `window.matchMedia` or `addEventListener` unguarded.
* UI product-surface check: N/A - Browser capability fallback only; no visible route copy changed.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Failure path completeness: Reduced-motion probing now degrades safely instead of rejecting runtime mount.
* Resource cleanup: Reduced-motion cleanup is idempotent and safe when unsubscribe APIs are missing.

***

### Task T007 - Preserve direct controller resize

**Started**: 2026-06-26 04:14 **Completed**: 2026-06-26 04:19 **Duration**: 5 minutes

**Notes**:

* Kept `controller.resize` bound to the immediate measured resize path.
* Direct resize cancels a pending scheduled resize before measuring, resizing Pixi/effects, rendering, and emitting the resize event.
* This preserves deterministic behavior for explicit callers while browser resize events remain coalesced.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Split `performResize`, `scheduleResize`, and direct `resize`.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T007 complete and updated progress.

**Verification**:

* Command/check: `rg -n "const performResize|const scheduleResize|const resize =|resize," src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - Source shows direct `resize` cancels scheduled resize and calls `performResize`, and the controller still exposes `resize`.
  * Evidence: `performResize` emits resize events; `scheduleResize` only schedules the browser-event path.
* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - 1 test file and 5 tests passed.
  * Evidence: Scheduler seam remains bounded without changing controller contract.
* UI product-surface check: N/A - Runtime controller behavior only; no visible route copy changed.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Contract alignment: `AiRogueRuntimeController.resize` remains a synchronous measured resize method.

***

### Task T006 - Coalesce observer and window resize work

**Started**: 2026-06-26 04:14 **Completed**: 2026-06-26 04:18 **Duration**: 4 minutes

**Notes**:

* Added an animation-frame task helper that keeps at most one pending scheduled pass.
* Changed ResizeObserver and window `resize` handlers to call `scheduleResize()` instead of immediate `resize()`.
* Resize cleanup now disconnects observers, removes the window listener, and cancels pending scheduled resize work.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Added RAF coalescing and wired resize observer/window events through `scheduleResize`.
* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Added coalescing coverage through the scheduler seam.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/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 - 1 test file and 5 tests passed.
  * Evidence: Scheduler test calls `schedule()` twice before a frame and verifies only one `requestAnimationFrame` registration and one run.
* Command/check: `rg -n "new ResizeObserver|window.addEventListener\\(\\\"resize\\\"|scheduleResize|scheduledResize" src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - ResizeObserver and window resize handlers are wired to `scheduleResize`, with scheduled resize cancellation in cleanup.
  * Evidence: Direct event handlers no longer call the full resize path immediately.
* UI product-surface check: N/A - Renderer scheduling only; no visible route copy changed.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Resource cleanup: Pending resize animation frames are canceled when the resize scope exits.
* Concurrency safety: Resize storms share one pending scheduled resize task.

***

### Task T005 - Add renderer test seam exports

**Started**: 2026-06-26 04:14 **Completed**: 2026-06-26 04:17 **Duration**: 3 minutes

**Notes**:

* Added explicit test-only exports for inactive sprite cleanup, animation-frame task coalescing, and reduced-motion media-query sync.
* Kept seams narrow and internal to renderer lifecycle behavior; no public runtime controller API changed.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Added `__aiRogueCleanupInactiveSpritesForTest`, `__aiRogueCreateAnimationFrameTaskForTest`, and `__aiRogueCreateReducedMotionSyncForTest`.
* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Consumes the new seams.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T005 complete and updated progress.

**Verification**:

* Command/check: `rg -n "__aiRogueCleanupInactiveSpritesForTest|__aiRogueCreateAnimationFrameTaskForTest|__aiRogueCreateReducedMotionSyncForTest" src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - All three test seams are exported and used by focused renderer lifecycle tests.
  * Evidence: The seam names appear in both renderer source and lifecycle test imports.
* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - 1 test file and 5 tests passed.
  * Evidence: Tests cover cleanup, scheduler, and reduced-motion fallback through the new seams.
* UI product-surface check: N/A - Test seam exports only; no route/component UI changed.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Contract alignment: Test seams map directly to internal lifecycle contracts without changing `AiRogueRuntimeController`.

***

### Task T004 - Destroy inactive transient feedback sprites

**Started**: 2026-06-26 04:13 **Completed**: 2026-06-26 04:16 **Duration**: 3 minutes

**Notes**:

* Replaced inactive sprite hiding with descriptor-family cleanup in `syncSprites`.
* `feedback:*` sprites are now removed from their parent layer, destroyed, and deleted from `spritePool` when absent from the active descriptor set.
* Persistent inactive sprites still remain in the pool and are hidden for future reuse.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/renderer.ts` - Added transient sprite cleanup and sprite pool destroy helpers.
* `src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts` - Updated lifecycle regression coverage for the new cleanup behavior.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T004 complete and updated progress.

**Verification**:

* Command/check: `bun run test -- src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts`
  * Result: PASS - 1 test file and 5 tests passed.
  * Evidence: The lifecycle test asserts stale `feedback:*` IDs are destroyed and removed while inactive persistent sprites are hidden and retained.
* Command/check: `rg -n "cleanupInactiveSprites|isTransientSpriteId|destroySpritePool|__aiRogueCleanupInactiveSpritesForTest" src/extensions/ai-rogue/runtime/renderer.ts`
  * Result: PASS - Renderer contains the transient-family cleanup helper and test seam.
  * Evidence: `syncSprites` calls `cleanupInactiveSprites`, and `isTransientSpriteId` currently scopes destruction to `feedback:`.
* UI product-surface check: N/A - Renderer resource lifecycle only; no visible route copy changed.
* UI craft check: N/A - No UI layout or styling changed.

**BQC Fixes**:

* Resource cleanup: Inactive transient Pixi sprites are explicitly removed, destroyed, and deleted from the mounted sprite pool.

***

### Task T003 - Create implementation notes scaffold

**Started**: 2026-06-26 04:10 **Completed**: 2026-06-26 04:13 **Duration**: 3 minutes

**Notes**:

* Created the implementation notes file with session metadata, environment verification, progress summary, and per-task evidence sections.
* Confirmed the notes file is being updated before each task checkbox moves.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Added scaffold and task evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T003 complete and updated progress.

**Verification**:

* Command/check: `test -s .spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md && sed -n '1,120p' .spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md`
  * Result: PASS - Implementation notes file exists and contains session metadata, progress, environment verification, and task log entries.
  * Evidence: The file includes `Session Progress`, `Task Log`, `Session Start`, and T001/T002 evidence sections.
* UI product-surface check: N/A - Spec-system documentation only; no user-facing route changed.
* UI craft check: N/A - No UI implementation changed.

***

### Task T002 - Inspect renderer, render model, bridge, audio, and fallback tests

**Started**: 2026-06-26 04:10 **Completed**: 2026-06-26 04:12 **Duration**: 2 minutes

**Notes**:

* Inspected the renderer sprite lifecycle, resize callbacks, reduced-motion subscription, setup failure cleanup, and controller destroy path before editing.
* Inspected render-model feedback descriptor IDs and current renderer lifecycle characterization coverage.
* Inspected runtime-canvas mount rejection handling and existing product-facing loading, ready, error, offline, and empty-save states.
* Inspected audio optional Web Audio behavior, decode failure swallowing, handle stop semantics, and dispose cleanup before adding tests.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Recorded source inspection evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Marked T002 complete and updated progress.

**Verification**:

* Command/check: `wc -l src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/runtime/render-model.ts src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/views/runtime-canvas.tsx src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - Confirmed the main implementation and coverage files exist and scoped the large files for targeted inspection.
  * Evidence: Renderer is 1647 lines, render model 960, audio 475, runtime canvas 1198, renderer lifecycle test 88, runtime-canvas test 605, e2e runtime spec 384.
* Command/check: `rg -n "syncSprites|feedback:|hideInactive|ResizeObserver|resize\\(|requestAnimationFrame|cancelAnimationFrame|matchMedia|reduced|destroy\\(|mountAiRogueRuntime|__testing|createAiRogueAudio|AudioContext|decodeAudioData|dispose" src/extensions/ai-rogue/runtime/renderer.ts src/extensions/ai-rogue/runtime/render-model.ts src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/views/runtime-canvas.tsx src/extensions/ai-rogue/runtime/__tests__/renderer-lifecycle.test.ts src/extensions/ai-rogue/__tests__/runtime-canvas.test.tsx tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - Located all relevant lifecycle, resize, media-query, bridge, and audio seams.
  * Evidence: `syncSprites` calls `hideInactiveSprites`, resize observers call `resize()`, reduced-motion uses `matchMedia`, runtime-canvas catches mount rejection, and audio handles optional `AudioContext`.
* Command/check: Targeted reads of `renderer.ts`, `audio.ts`, `runtime-canvas.test.tsx`, `renderer-lifecycle.test.ts`, `types.ts`, and `tests/e2e/ai-rogue-runtime.spec.ts`
  * Result: PASS - Existing behavior and test gaps are understood before edits.
  * Evidence: Current characterization test asserts stale `feedback:*` sprites remain hidden and not destroyed; upcoming implementation must invert that expectation while preserving persistent sprite hiding.
* UI product-surface check: N/A - Source inspection only; no product surface changed.
* UI craft check: N/A - No UI implementation changed.

**BQC Fixes**:

* Resource cleanup: Identified renderer sprite, RAF, listener, Pixi app, and audio cleanup paths that must remain idempotent during implementation.
* Failure path completeness: Identified runtime-canvas rejected mount path and audio silent fallback paths for focused coverage.

***

### 2026-06-26 - Session Start

**Environment verified**:

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

***

### Task T001 - Verify Session 04 scope and prerequisite evidence

**Started**: 2026-06-26 04:09 **Completed**: 2026-06-26 04:10 **Duration**: 1 minute

**Notes**:

* Confirmed analyzer selected `phase34-session04-renderer-lifecycle-and-robustness` as the active current session for Phase 34.
* Verified Phase 34 Session 04 maps to AR-D4-001, AR-D4-003, AR-D7-001, and AR-D8-002.
* Verified Sessions 01, 02, and 03 have PASS validation reports and are listed as completed prerequisites.

**Files Changed**:

* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/implementation-notes.md` - Created implementation log and recorded scope evidence.
* `.spec_system/specs/phase34-session04-renderer-lifecycle-and-robustness/tasks.md` - Added progress summary and marked T001 complete.

**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/skills/apex-spec/scripts/analyze-project.sh --json; fi`
  * Result: PASS - Analyzer reported current phase 34 and current session `phase34-session04-renderer-lifecycle-and-robustness`.
  * Evidence: Candidate sessions show Sessions 01-03 completed and Session 04 as first incomplete current-phase candidate.
* Command/check: `rg -n "AR-D4-001|AR-D4-003|AR-D7-001|AR-D8-002" .spec_system/PRD/phase_34/session_04_renderer_lifecycle_and_robustness.md .spec_system/PRD/phase_34/PRD_phase_34.md .spec_system/PRD/phase_35/PRD_phase_35.md`
  * Result: PASS - Finding IDs and Session 04 mapping were present in session stub, Phase PRD, and audit findings.
  * Evidence: Session 04 stub lists all four finding IDs and scope items for transient sprite cleanup, resize coalescing, media-query hardening, and fallback coverage.
* Command/check: `sed -n '1,120p' .spec_system/specs/phase34-session01-characterization-test-harness/validation.md && sed -n '1,120p' .spec_system/specs/phase34-session02-accessibility-and-compact-input/validation.md && sed -n '1,120p' .spec_system/specs/phase34-session03-simulation-correctness-and-scenario-gate/validation.md`
  * Result: PASS - All three prerequisite validation reports show `Result: PASS`.
  * Evidence: Sessions 01, 02, and 03 each report task completion, tests, quality gates, security, behavioral quality, and UI product-surface PASS.
* UI product-surface check: N/A - Scope verification only; no user-facing route changed.
* UI craft check: N/A - No UI implementation changed.

***


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