> 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/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase39-session05-enemy-metadata-and-derived-asset-checks` **Started**: 2026-06-30 21:46 **Last Updated**: 2026-06-30 22:22

***

## Session Progress

| Metric              | Value     |
| ------------------- | --------- |
| Tasks Completed     | 18 / 18   |
| Estimated Remaining | 0 minutes |
| Blockers            | 0         |

***

## Task Log

### 2026-06-30 - Session Start

**Environment verified**:

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

***

### Task T001 - Verify prior Phase 39 artifacts and Session 05 boundaries

**Started**: 2026-06-30 21:46 **Completed**: 2026-06-30 21:47 **Duration**: 1 minute

**Notes**:

* Verified Phase 39 Sessions 01-04 have generated spec directories with implementation, review, security, and validation artifacts.
* Confirmed prior session task checklists are complete and Session 05 is the next unfinished phase session.
* Identified current runtime validation boundaries: level specs and validator live under `runtime/content`, audio routing owns current enemy-family switch and asset maps, and atlas validation owns manual required gameplay frames.

**Files Changed**:

* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - 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/scripts/analyze-project.sh --json; fi`
  * Result: PASS - Active session resolved to `phase39-session05-enemy-metadata-and-derived-asset-checks`.
  * Evidence: Output showed Phase 39 in progress with Sessions 01-04 completed and Session 05 incomplete.
* Command/check: `for d in .spec_system/specs/phase39-session0[1-4]*; do printf '%s\n' "$d"; find "$d" -maxdepth 1 -type f -printf ' %f\n' | sort; done`
  * Result: PASS - Prior session artifact directories exist.
  * Evidence: Sessions 01-04 each include `spec.md`, `tasks.md`, `implementation-notes.md`, `code-review.md`, `security-compliance.md`, and `validation.md`.
* Command/check: `rg -n "^- \[[ x]\] T|Tasks Completed|Session implementation complete|Validation" .spec_system/specs/phase39-session0[1-4]* -g '*.md'`
  * Result: PASS - Prior session task checklists are complete.
  * Evidence: Session 01 reports 16/16 tasks, Session 02 reports 20/20 tasks, Session 03 reports 16/16 tasks, and Session 04 reports 16/16 tasks.
* Command/check: `rg -n "AI_ROGUE_LEVEL_SPECS|validateAiRogueContentRegistry|levelSpecForDepth|AI_ROGUE_MAX_DEPTH" src/extensions/ai-rogue/runtime/content src/extensions/ai-rogue/runtime -g '*.ts'`
  * Result: PASS - Runtime registry and validation boundaries are present.
  * Evidence: Found authored level specs, depth lookup helpers, registry validator, and max-depth derivation from the level specs.
* UI product-surface check: N/A - Artifact and source-boundary audit only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* N/A - No application code changed in this task.

***

### Task T018 - Validate ASCII and LF requirements

**Started**: 2026-06-30 22:20 **Completed**: 2026-06-30 22:22 **Duration**: 2 minutes

**Notes**:

* Formatted touched TypeScript test, runtime, content, asset, and session Markdown files.
* Validated typecheck after formatting plus whitespace, ASCII, and LF requirements for touched session and AI Rogue files.

**Files Changed**:

* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added final validation evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T018 complete and updated completion checklist.

**Verification**:

* Command/check: `bunx prettier --write src/extensions/ai-rogue/runtime/types-entities.ts src/extensions/ai-rogue/runtime/entities.ts src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/runtime/content/types.ts src/extensions/ai-rogue/runtime/content/validate.ts src/extensions/ai-rogue/runtime/content/index.ts src/extensions/ai-rogue/runtime/assets.ts src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/runtime/__tests__/assets.test.ts src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md`
  * Result: PASS - Touched files were formatted.
  * Evidence: Prettier completed successfully for all listed files.
* Command/check: `bun run typecheck && git diff --check -- src/extensions/ai-rogue/runtime/types-entities.ts src/extensions/ai-rogue/runtime/entities.ts src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/runtime/content/types.ts src/extensions/ai-rogue/runtime/content/validate.ts src/extensions/ai-rogue/runtime/content/index.ts src/extensions/ai-rogue/runtime/assets.ts src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/runtime/__tests__/assets.test.ts src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md && if rg -n --pcre2 '[^\x00-\x7F]' src/extensions/ai-rogue/runtime/types-entities.ts src/extensions/ai-rogue/runtime/entities.ts src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/runtime/content/types.ts src/extensions/ai-rogue/runtime/content/validate.ts src/extensions/ai-rogue/runtime/content/index.ts src/extensions/ai-rogue/runtime/assets.ts src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/runtime/__tests__/assets.test.ts src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md; then exit 1; else echo 'ASCII OK'; fi && if rg -n $'\r' src/extensions/ai-rogue/runtime/types-entities.ts src/extensions/ai-rogue/runtime/entities.ts src/extensions/ai-rogue/runtime/audio.ts src/extensions/ai-rogue/runtime/content/types.ts src/extensions/ai-rogue/runtime/content/validate.ts src/extensions/ai-rogue/runtime/content/index.ts src/extensions/ai-rogue/runtime/assets.ts src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/runtime/__tests__/assets.test.ts src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md; then exit 1; else echo 'LF OK'; fi`
  * Result: PASS - Typecheck, whitespace, ASCII, and LF checks passed.
  * Evidence: `tsc --noEmit` succeeded; command printed `ASCII OK` and `LF OK`.
* Command/check: `git diff --check -- .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md && if rg -n --pcre2 '[^\x00-\x7F]' .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md; then exit 1; else echo 'ASCII OK'; fi && if rg -n $'\r' .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md .spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md; then exit 1; else echo 'LF OK'; fi`
  * Result: PASS - Final session artifacts passed whitespace, ASCII, and LF checks after updating the completion checklist.
  * Evidence: Command printed `ASCII OK` and `LF OK`.
* UI product-surface check: N/A - Validation command task only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* N/A - Validation command task only.

***

### Task T003 - Define enemy metadata types

**Started**: 2026-06-30 21:48 **Completed**: 2026-06-30 21:51 **Duration**: 3 minutes

**Notes**:

* Added typed enemy audio-family values plus exhaustive key lists for standard enemy frame sets and boss frame sets.
* Added source-only template metadata contracts without adding any fields to `AiRogueEnemyState`.
* Typed standard enemy frame metadata against existing committed enemy frame names, including the legacy errant/firewall animation frames that are not currently runtime entity sprites.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/types-entities.ts` - Added `AiRogueEnemyAudioFamily`, frame-set key arrays, frame-name unions, and template metadata types.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T003 complete.

**Verification**:

* Command/check: `sed -n '45,140p' src/extensions/ai-rogue/runtime/types-assets.ts && rg -n "type AiRogueGameplayFrameName|ReducedMotion|FrameName =" src/extensions/ai-rogue/runtime/types-assets.ts`
  * Result: PASS - Existing frame-name type boundaries were inspected before defining metadata.
  * Evidence: Standard enemy animation frames include some committed frame names outside `AiRogueEntityFrameName`, while boss state frames already have a narrow G5 type.
* Command/check: `bun run typecheck`
  * Result: PASS - TypeScript accepted the new exported metadata contracts.
  * Evidence: Command completed successfully with `tsc --noEmit`.
* UI product-surface check: N/A - Runtime type-only change; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Added exhaustive metadata key lists and did not widen saved enemy state (`src/extensions/ai-rogue/runtime/types-entities.ts`).

***

### Task T004 - Update enemy template typing and runtime projection

**Started**: 2026-06-30 21:51 **Completed**: 2026-06-30 21:53 **Duration**: 2 minutes

**Notes**:

* Added `AiRogueEnemyTemplate` as the source-template type combining runtime template fields with metadata.
* Changed `AI_ROGUE_ENEMY_TEMPLATES` to use the new metadata-aware template type.
* Replaced `createAiRogueEnemy()` template spreading with explicit runtime-field projection so source metadata cannot leak into `AiRogueEnemyState`.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/entities.ts` - Added metadata-aware template typing and explicit runtime projection in `createAiRogueEnemy()`.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T004 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts`
  * Result: PASS - TypeScript and existing ecology behavior tests passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 6 tests passed.
* Command/check: `bun -e "import { createAiRogueEnemy } from './src/extensions/ai-rogue/runtime/entities.ts'; const enemy = createAiRogueEnemy({ kind: 'signal-gnat', position: { x: 1, y: 2 } }, 0); console.log(JSON.stringify({ hasAudioFamily: Object.hasOwn(enemy, 'audioFamily'), hasFrameSet: Object.hasOwn(enemy, 'frameSet'), hasBossFrameSet: Object.hasOwn(enemy, 'bossFrameSet'), keys: Object.keys(enemy).sort() }));"`
  * Result: PASS - Created runtime enemy state excludes source metadata.
  * Evidence: Output reported `hasAudioFamily:false`, `hasFrameSet:false`, and `hasBossFrameSet:false`.
* UI product-surface check: N/A - Runtime projection change only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Runtime projection now lists saved enemy-state fields explicitly, preventing metadata/schema drift (`src/extensions/ai-rogue/runtime/entities.ts`).

***

### Task T005 - Populate standard enemy audio-family and frame-set metadata

**Started**: 2026-06-30 21:53 **Completed**: 2026-06-30 21:54 **Duration**: 1 minute

**Notes**:

* Added `audioFamily` and standard frame-set metadata for the 11 non-boss enemy templates.
* Preserved the previous audio family grouping: generic, sentry, fast, thief, and corruption.
* Declared idle, alternate idle, attack, hit, and defeated arrays for each standard enemy; enemies without committed defeated frames use an empty `defeated` array.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/entities.ts` - Added standard enemy audio-family and frame-set metadata.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T005 complete.

**Verification**:

* Command/check: `bun -e "import { AI_ROGUE_ENEMY_TEMPLATES } from './src/extensions/ai-rogue/runtime/entities.ts'; import gameplayAtlas from './src/assets/ai-rogue/gameplay-atlas.json'; const requiredKeys = ['idle','alternateIdle','attack','hit','defeated']; const standard = Object.entries(AI_ROGUE_ENEMY_TEMPLATES).filter(([, template]) => template.audioFamily !== 'boss'); const failures = []; const familyCounts = {}; for (const [kind, template] of standard) { familyCounts[template.audioFamily] = (familyCounts[template.audioFamily] ?? 0) + 1; if (!('frameSet' in template)) failures.push(kind + ': missing frameSet'); for (const key of requiredKeys) { const frames = template.frameSet?.[key]; if (!Array.isArray(frames)) failures.push(kind + ': ' + key + ' is not an array'); if (key !== 'defeated' && (!frames || frames.length === 0)) failures.push(kind + ': ' + key + ' is empty'); for (const frame of frames ?? []) { if (!gameplayAtlas.frames[frame]) failures.push(kind + ': missing atlas frame ' + frame); } } } if (standard.length !== 11) failures.push('expected 11 standard enemies, got ' + standard.length); if (failures.length > 0) { console.error(failures.join('\n')); process.exit(1); } console.log(JSON.stringify({ standardEnemies: standard.length, familyCounts, keys: requiredKeys }, null, 2));"`
  * Result: PASS - Every standard enemy has metadata and every declared non-empty frame exists in the committed gameplay atlas.
  * Evidence: Output reported 11 standard enemies with family counts `{ generic: 1, sentry: 1, fast: 4, thief: 1, corruption: 4 }`.
* UI product-surface check: N/A - Runtime content metadata only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Standard enemy metadata is typed and atlas-backed, with explicit empty defeated arrays where no defeated frame exists (`src/extensions/ai-rogue/runtime/entities.ts`).

***

### Task T006 - Add Kernel Sentinel boss frame metadata

**Started**: 2026-06-30 21:54 **Completed**: 2026-06-30 21:55 **Duration**: 1 minute

**Notes**:

* Added `bossFrameSet` metadata to the Kernel Sentinel template for idle, charge, telegraph, attack, shielded, hit, and shutdown.
* Kept this to current frame declarations only; no reusable boss behavior contract or finale routing changes were introduced.
* Included the current legacy idle frame in the idle set so derived validation keeps existing committed atlas coverage.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/entities.ts` - Added Kernel Sentinel boss frame metadata.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T006 complete.

**Verification**:

* Command/check: `bun -e "import { AI_ROGUE_ENEMY_TEMPLATES } from './src/extensions/ai-rogue/runtime/entities.ts'; import gameplayAtlas from './src/assets/ai-rogue/gameplay-atlas.json'; const expectedKeys = ['idle','charge','telegraph','attack','shielded','hit','shutdown']; const sentinel = AI_ROGUE_ENEMY_TEMPLATES['kernel-sentinel']; const failures = []; if (sentinel.audioFamily !== 'boss') failures.push('kernel-sentinel audioFamily is not boss'); if (!('bossFrameSet' in sentinel)) failures.push('kernel-sentinel missing bossFrameSet'); for (const key of expectedKeys) { const frames = sentinel.bossFrameSet?.[key]; if (!Array.isArray(frames) || frames.length === 0) failures.push('kernel-sentinel ' + key + ' frames missing'); for (const frame of frames ?? []) { if (!gameplayAtlas.frames[frame]) failures.push('missing atlas frame ' + frame); } } if ('frameSet' in sentinel) failures.push('kernel-sentinel should not declare standard frameSet'); if (failures.length > 0) { console.error(failures.join('\n')); process.exit(1); } console.log(JSON.stringify({ kind: sentinel.kind, audioFamily: sentinel.audioFamily, keys: expectedKeys, idleFrames: sentinel.bossFrameSet.idle }, null, 2));"`
  * Result: PASS - Kernel Sentinel has boss-only frame metadata and every declared frame exists in the committed gameplay atlas.
  * Evidence: Output reported `audioFamily:"boss"` and frame keys `idle`, `charge`, `telegraph`, `attack`, `shielded`, `hit`, and `shutdown`.
* UI product-surface check: N/A - Runtime content metadata only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Boss frame declarations are typed and atlas-backed without changing boss behavior or saved state (`src/extensions/ai-rogue/runtime/entities.ts`).

***

### Task T007 - Add metadata lookup helpers and template completeness tests

**Started**: 2026-06-30 21:55 **Completed**: 2026-06-30 21:58 **Duration**: 3 minutes

**Notes**:

* Added template, audio-family, standard frame-set, and boss frame-set lookup helpers with null fallbacks for unknown values.
* Added ecology coverage for exhaustive enemy-kind metadata, helper output, atlas-backed frame declarations, and runtime projection boundaries.
* Fixed typecheck feedback by importing value constants from `types-entities.ts` and null-coalescing optional union fields in lookup helpers.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/entities.ts` - Added metadata lookup helpers.
* `src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts` - Added metadata completeness and lookup tests.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T007 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts`
  * Result: PASS - TypeScript and metadata completeness tests passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 7 tests passed.
* UI product-surface check: N/A - Runtime metadata helpers and tests only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Lookup helpers return `null` for unknown or mismatched metadata instead of exposing undefined union fields (`src/extensions/ai-rogue/runtime/entities.ts`).

***

### Task T008 - Route audio family lookup through enemy metadata

**Started**: 2026-06-30 21:58 **Completed**: 2026-06-30 21:59 **Duration**: 1 minute

**Notes**:

* Replaced the private `audioFamilyForEnemyKind()` enemy-kind switch with `enemyAudioFamilyForKind()`.
* Preserved the generic fallback for undefined or unknown enemy metadata.
* Left actor-kind-only sentry and boss fallbacks in place for metadata that intentionally omits an enemy kind.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/audio.ts` - Imported the enemy metadata helper and removed the manual enemy-family switch.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T008 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - TypeScript and focused audio behavior tests passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 30 tests passed.
* UI product-surface check: N/A - Runtime audio routing only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Audio cue selection now reads the enemy metadata contract with a controlled generic fallback (`src/extensions/ai-rogue/runtime/audio.ts`).

***

### Task T009 - Extend audio metadata routing tests

**Started**: 2026-06-30 21:59 **Completed**: 2026-06-30 22:02 **Duration**: 3 minutes

**Notes**:

* Extended existing enemy-family audio tests to include the generic family.
* Added actor-kind-only fallback coverage for sentry and boss charge/fire/hit/defeat paths.
* Added unknown enemy-kind metadata coverage proving metadata lookup falls back to generic cues instead of another family.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts` - Added generic family, actor-kind-only fallback, and unknown metadata fallback cases.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T009 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - TypeScript and expanded audio suite passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 31 tests passed.
* UI product-surface check: N/A - Audio tests only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Failure path completeness: Added explicit fallback coverage for missing or unknown enemy metadata so cue routing remains caller-visible and deterministic (`src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`).

***

### Task T010 - Add derived content gameplay frame requirement helpers

**Started**: 2026-06-30 22:02 **Completed**: 2026-06-30 22:07 **Duration**: 5 minutes

**Notes**:

* Added structured derived gameplay frame requirement helpers that first validate the level registry input and return stable validation issues for malformed input.
* Derived requirements from theme visuals, enemy and boss metadata, protocols, objectives, statuses, pickups, and authored level references.
* Exported the helper and unique-frame list through the content barrel for asset validation and tests.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/content/types.ts` - Added frame requirement result types and the `invalid-frame-reference` issue code.
* `src/extensions/ai-rogue/runtime/content/validate.ts` - Added derived gameplay frame requirement collectors and unique frame-name helper.
* `src/extensions/ai-rogue/runtime/content/index.ts` - Exported the new derived-frame helpers.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T010 complete.

**Verification**:

* Command/check: `bun run typecheck`
  * Result: PASS - TypeScript accepted the derived-frame helper types and implementation.
  * Evidence: Command completed successfully with `tsc --noEmit`.
* Command/check: `bun -e "import { deriveAiRogueContentGameplayFrameRequirements, listAiRogueContentGameplayFrameNames } from './src/extensions/ai-rogue/runtime/content/index.ts'; const result = deriveAiRogueContentGameplayFrameRequirements(); const frames = listAiRogueContentGameplayFrameNames(); console.log(JSON.stringify({ ok: result.ok, issues: result.issues.length, requirements: result.requirements.length, uniqueFrames: frames.length, firstFive: frames.slice(0, 5), includes: { errantAttack: frames.includes('enemy_errant_process_attack'), bossShutdown: frames.includes('boss_kernel_sentinel_shutdown_0'), themeVault: frames.includes('tile_g3_model_vault_floor'), protocolTrace: frames.includes('fx_trace_lance_beam'), objectiveLock: frames.includes('tile_objective_lock'), statusBurning: frames.includes('status_overlay_burning'), pickupKey: frames.includes('pickup_key_fragment') } }, null, 2));"`
  * Result: PASS - Default registry derived frame requirements without issues.
  * Evidence: Output reported `ok:true`, 0 issues, 336 requirements, 140 unique frames, and representative required frames present across all requested source categories.
* Command/check: `bunx vitest run src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts`
  * Result: PASS - Existing content registry validation behavior remains green.
  * Evidence: Vitest reported 1 test file and 6 tests passed.
* UI product-surface check: N/A - Pure runtime validation helper; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Trust boundary enforcement: Derived frame helpers validate unknown input through the existing registry validator before reading level references (`src/extensions/ai-rogue/runtime/content/validate.ts`).
* Error information boundaries: Malformed input returns stable issue codes and paths without raw private values (`src/extensions/ai-rogue/runtime/content/validate.ts`).

***

### Task T011 - Split static and derived gameplay frame requirements

**Started**: 2026-06-30 22:07 **Completed**: 2026-06-30 22:10 **Duration**: 3 minutes

**Notes**:

* Added `DERIVED_GAMEPLAY_FRAME_NAMES` from the content validation helper.
* Split shared renderer/gameplay infrastructure into `STATIC_GAMEPLAY_FRAME_NAMES`.
* Preserved `REQUIRED_GAMEPLAY_FRAME_NAMES` as the full static-plus-derived validation surface.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/assets.ts` - Split static and derived required gameplay frame lists while preserving full atlas validation coverage.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T011 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/__tests__/assets.test.ts`
  * Result: PASS - TypeScript and focused asset atlas tests passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 19 tests passed.
* Command/check: `bun -e "import { DERIVED_GAMEPLAY_FRAME_NAMES, REQUIRED_GAMEPLAY_FRAME_NAMES, STATIC_GAMEPLAY_FRAME_NAMES } from './src/extensions/ai-rogue/runtime/assets.ts'; const derived = new Set(DERIVED_GAMEPLAY_FRAME_NAMES); const staticOverlap = STATIC_GAMEPLAY_FRAME_NAMES.filter((frame) => derived.has(frame)); const required = new Set(REQUIRED_GAMEPLAY_FRAME_NAMES); const derivedMissing = DERIVED_GAMEPLAY_FRAME_NAMES.filter((frame) => !required.has(frame)); console.log(JSON.stringify({ static: STATIC_GAMEPLAY_FRAME_NAMES.length, derived: DERIVED_GAMEPLAY_FRAME_NAMES.length, required: REQUIRED_GAMEPLAY_FRAME_NAMES.length, staticOverlap: staticOverlap.length, derivedMissing: derivedMissing.length }, null, 2));"`
  * Result: PASS - Static and derived frame lists are disjoint and complete.
  * Evidence: Output reported 83 static frames, 140 derived frames, 223 required frames, 0 static overlap, and 0 derived missing.
* UI product-surface check: N/A - Runtime asset validation list split only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Atlas validation now consumes the derived content frame contract while preserving the existing required frame surface (`src/extensions/ai-rogue/runtime/assets.ts`).

***

### Task T012 - Add asset validation tests for derived gameplay frames

**Started**: 2026-06-30 22:10 **Completed**: 2026-06-30 22:13 **Duration**: 3 minutes

**Notes**:

* Added tests proving derived content frames are disjoint from static gameplay frames and all frames remain in required atlas validation.
* Added representative derived-source assertions for enemies, boss, themes, protocols, objectives, statuses, and pickups.
* Added deterministic missing-frame coverage for derived frames and the existing atlas assertion error message.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/__tests__/assets.test.ts` - Added derived/static frame boundary and deterministic missing-frame tests.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T012 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/__tests__/assets.test.ts`
  * Result: PASS - TypeScript and expanded asset suite passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 21 tests passed.
* UI product-surface check: N/A - Asset validation tests only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Failure path completeness: Added deterministic missing-frame assertions for derived content frames (`src/extensions/ai-rogue/runtime/__tests__/assets.test.ts`).

***

### Task T013 - Add audio asset and provenance validation tests

**Started**: 2026-06-30 22:13 **Completed**: 2026-06-30 22:16 **Duration**: 3 minutes

**Notes**:

* Added a narrow audio asset manifest helper that exposes declared SFX, music, and ambience basenames with their imported Ogg URLs.
* Added audio tests verifying every declared basename resolves to an imported Ogg URL.
* Added provenance tests verifying every declared SFX basename is covered by SFX provenance `cues` and every music or ambience basename is covered by music provenance `tracks`.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/audio.ts` - Added `listAiRogueAudioAssetReferences()` and supporting manifest types.
* `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts` - Added audio URL and provenance coverage tests.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T013 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`
  * Result: PASS - TypeScript and expanded audio suite passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 33 tests passed.
* Command/check: `bunx vitest run src/extensions/ai-rogue/runtime/__tests__/audio.test.ts -t "AI Rogue audio asset manifests"`
  * Result: PASS - Focused audio manifest tests passed.
  * Evidence: Vitest reported 2 manifest tests passed and 31 skipped.
* UI product-surface check: N/A - Runtime audio manifest and tests only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Contract alignment: Audio asset declarations now have tests tying cue IDs to imported Ogg URLs and provenance records (`src/extensions/ai-rogue/runtime/audio.ts`, `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`).

***

### Task T014 - Align content registry tests with derived validation

**Started**: 2026-06-30 22:16 **Completed**: 2026-06-30 22:18 **Duration**: 2 minutes

**Notes**:

* Added content registry tests for derived gameplay frame output across enemy, boss, theme, protocol, objective, status, and pickup sources.
* Added malformed music and ambience reference checks through the derived-frame helper so audio references block derivation with stable issue codes.
* Added a controlled malformed enemy metadata case that returns `invalid-frame-reference` without leaking unsafe values.

**Files Changed**:

* `src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts` - Added derived validation and safe issue mapping coverage.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T014 complete.

**Verification**:

* Command/check: `bun run typecheck && bunx vitest run src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts`
  * Result: PASS - TypeScript and expanded content registry suite passed.
  * Evidence: `tsc --noEmit` succeeded; Vitest reported 1 test file and 7 tests passed.
* UI product-surface check: N/A - Content validation tests only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* Trust boundary enforcement: Added tests proving derived validation refuses malformed audio references before deriving frame requirements (`src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts`).
* Error information boundaries: Added tests proving unsafe local-looking reference strings are not echoed in derived validation issues (`src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts`).

***

### Task T015 - Run focused metadata, audio, asset, and content validation suites

**Started**: 2026-06-30 22:18 **Completed**: 2026-06-30 22:19 **Duration**: 1 minute

**Notes**:

* Ran the focused suites specified by the task checklist for metadata completeness, audio routing/assets, atlas validation, and content registry validation.

**Files Changed**:

* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T015 complete.

**Verification**:

* Command/check: `bunx vitest run src/extensions/ai-rogue/runtime/__tests__/ecology.test.ts src/extensions/ai-rogue/runtime/__tests__/audio.test.ts src/extensions/ai-rogue/runtime/__tests__/assets.test.ts src/extensions/ai-rogue/runtime/content/__tests__/levels.test.ts`
  * Result: PASS - Focused metadata, audio, asset, and content validation suites passed.
  * Evidence: Vitest reported 4 test files and 68 tests passed.
* UI product-surface check: N/A - Validation command task only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* N/A - Validation command task only.

***

### Task T017 - Run typecheck and asset-size verification

**Started**: 2026-06-30 22:19 **Completed**: 2026-06-30 22:20 **Duration**: 1 minute

**Notes**:

* Ran the full app typecheck and repository asset-size gate after changing audio asset manifests and asset validation.

**Files Changed**:

* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T017 complete.

**Verification**:

* Command/check: `bun run typecheck && bash scripts/check-asset-sizes.sh`
  * Result: PASS - Typecheck and asset-size gate passed.
  * Evidence: `tsc --noEmit` succeeded; asset script reported all assets within configured size limits with total 15M.
* UI product-surface check: N/A - Validation command task only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* N/A - Validation command task only.

***

### Task T016 - Run focused behavior-preservation suites

**Started**: 2026-06-30 22:19 **Completed**: 2026-06-30 22:19 **Duration**: 1 minute

**Notes**:

* Ran the behavior-preservation suites specified by the task checklist for combat, boss presentation, render model, and renderer audio adapter behavior.

**Files Changed**:

* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T016 complete.

**Verification**:

* Command/check: `bunx vitest run src/extensions/ai-rogue/runtime/__tests__/combat.test.ts src/extensions/ai-rogue/runtime/__tests__/boss-presentation.test.ts src/extensions/ai-rogue/runtime/__tests__/render-model.test.ts src/extensions/ai-rogue/runtime/__tests__/renderer-audio-adapter.test.ts`
  * Result: PASS - Focused behavior-preservation suites passed.
  * Evidence: Vitest reported 4 test files and 47 tests passed.
* UI product-surface check: N/A - Validation command task only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* N/A - Validation command task only.

***

### Task T002 - Audit current enemy, audio, asset, and provenance boundaries

**Started**: 2026-06-30 21:47 **Completed**: 2026-06-30 21:48 **Duration**: 1 minute

**Notes**:

* Confirmed `AI_ROGUE_ENEMY_TEMPLATES` is currently typed as runtime-state fields and `createAiRogueEnemy()` spreads the full template into saved enemy state.
* Confirmed `audioFamilyForEnemyKind()` manually switches on every enemy kind, while actor-kind-only sentry and boss paths already have explicit fallbacks.
* Confirmed `REQUIRED_GAMEPLAY_FRAME_NAMES` currently mixes content-owned enemy and boss frames with shared renderer/static frames.
* Confirmed audio imported Ogg URL maps are built from basename maps, and provenance files use `cues` and `tracks` collections rather than a generic `entries` array.

**Files Changed**:

* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/implementation-notes.md` - Added task evidence and progress.
* `.spec_system/specs/phase39-session05-enemy-metadata-and-derived-asset-checks/tasks.md` - Marked T002 complete.

**Verification**:

* Command/check: `sed -n '1,260p' src/extensions/ai-rogue/runtime/types-entities.ts`
  * Result: PASS - Existing entity state types were reviewed.
  * Evidence: `AiRogueEnemyState` has no metadata fields, which must remain true after source metadata is added.
* Command/check: `sed -n '1,620p' src/extensions/ai-rogue/runtime/entities.ts`
  * Result: PASS - Template and projection behavior were reviewed.
  * Evidence: Enemy templates are currently runtime-shaped and `createAiRogueEnemy()` spreads `...template`, so future metadata requires explicit projection.
* Command/check: `sed -n '1,220p' src/extensions/ai-rogue/runtime/audio.ts` and `sed -n '820,1010p' src/extensions/ai-rogue/runtime/audio.ts`
  * Result: PASS - Audio basename maps and current family switch were reviewed.
  * Evidence: `SFX_FILE_BASENAMES`, music and ambience maps, URL lookup construction, and the manual enemy-family switch are the active boundary.
* Command/check: `sed -n '1,380p' src/extensions/ai-rogue/runtime/assets.ts`
  * Result: PASS - Manual required gameplay frame list was reviewed.
  * Evidence: Enemy, boss, FX, protocol, pickup, theme, player, tile, and UI-adjacent gameplay frames currently share one manual required gameplay list.
* Command/check: `find src/assets/ai-rogue/audio -maxdepth 3 -type f \( -name '*.ogg' -o -name 'provenance.json' \) | sort`
  * Result: PASS - Current audio asset files and provenance files were found.
  * Evidence: SFX Oggs 01-64, music/ambience Oggs, and both provenance files exist.
* Command/check: `node -e "const s=require('./src/assets/ai-rogue/audio/sfx/provenance.json'); const m=require('./src/assets/ai-rogue/audio/music/provenance.json'); console.log(JSON.stringify({sfxEntries:Array.isArray(s.entries)?s.entries.length:null,musicEntries:Array.isArray(m.entries)?m.entries.length:null,sfxKeys:Object.keys(s),musicKeys:Object.keys(m)}, null, 2))"`
  * Result: PASS - Provenance shape was inspected without exposing private paths.
  * Evidence: SFX provenance owns `cues`; music provenance owns `tracks`.
* UI product-surface check: N/A - Source-boundary audit only; no user-facing route changed.
* UI craft check: N/A - No UI changed.

**BQC Fixes**:

* N/A - No application code changed in this task.

***


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