> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase36-session07-adaptive-stinger-pack/implementation_summary.md).

# Implementation Summary

**Session ID**: `phase36-session07-adaptive-stinger-pack` **Completed**: 2026-06-28 **Duration**: 1 hour

***

## Overview

Session 07 replaced the provisional adaptive-audio cues from Session 06 with seven dedicated AI Rogue stinger assets for combat start, low HP, boss reveal, objective unlock, final defense, victory transition, and defeat transition. The work preserved the existing adaptive request IDs, cooldowns, ducking, mute/volume behavior, autoplay unlock, lazy decode, and silent fallback paths. It also added generation safeguards, provenance, focused tests, browser proof, and documentation while keeping adaptive audio presentation-only.

***

## Deliverables

### Files Created

| File                                                                                 | Purpose                                                   | Lines  |
| ------------------------------------------------------------------------------------ | --------------------------------------------------------- | ------ |
| `src/assets/ai-rogue/audio/sfx/58_stinger_combat_start.ogg`                          | Dedicated combat-start adaptive stinger.                  | binary |
| `src/assets/ai-rogue/audio/sfx/59_stinger_low_hp.ogg`                                | Dedicated low-HP pressure adaptive stinger.               | binary |
| `src/assets/ai-rogue/audio/sfx/60_stinger_boss_reveal.ogg`                           | Dedicated boss-reveal adaptive stinger.                   | binary |
| `src/assets/ai-rogue/audio/sfx/61_stinger_objective_unlock.ogg`                      | Dedicated objective-unlock adaptive stinger.              | binary |
| `src/assets/ai-rogue/audio/sfx/62_stinger_final_defense.ogg`                         | Dedicated final-defense adaptive stinger.                 | binary |
| `src/assets/ai-rogue/audio/sfx/63_stinger_victory_transition.ogg`                    | Dedicated victory-transition adaptive stinger.            | binary |
| `src/assets/ai-rogue/audio/sfx/64_stinger_defeat_transition.ogg`                     | Dedicated defeat-transition adaptive stinger.             | binary |
| `scripts/generate-ai-rogue-adaptive-stingers.ts`                                     | Local ffmpeg synthesis script for adaptive stingers.      | \~447  |
| `scripts/lib/__tests__/ai-rogue-audio-sfx-generation.test.ts`                        | Generator retry and raw-file failure regression coverage. | \~57   |
| `.spec_system/specs/phase36-session07-adaptive-stinger-pack/spec.md`                 | Session specification and contract.                       | \~391  |
| `.spec_system/specs/phase36-session07-adaptive-stinger-pack/tasks.md`                | Session task checklist and completion tracking.           | \~76   |
| `.spec_system/specs/phase36-session07-adaptive-stinger-pack/implementation-notes.md` | Implementation decisions, evidence, and command log.      | \~792  |
| `.spec_system/specs/phase36-session07-adaptive-stinger-pack/code-review.md`          | Code review and repair report.                            | \~90   |
| `.spec_system/specs/phase36-session07-adaptive-stinger-pack/security-compliance.md`  | Security and GDPR review report.                          | \~92   |
| `.spec_system/specs/phase36-session07-adaptive-stinger-pack/validation.md`           | Validation report and evidence ledger.                    | \~217  |

### Files Modified

| File                                                                       | Changes                                                                                                                     |
| -------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
| `scripts/generate-ai-rogue-audio-sfx.ts`                                   | Added seven adaptive stinger cue definitions and hardened retry behavior for non-retryable responses and raw-file failures. |
| `src/extensions/ai-rogue/runtime/types-simulation.ts`                      | Added dedicated adaptive stinger cue IDs to the audio cue contract.                                                         |
| `src/extensions/ai-rogue/runtime/audio.ts`                                 | Registered stinger files and mapped adaptive profiles to dedicated cues with conservative volume and fallback behavior.     |
| `src/extensions/ai-rogue/runtime/renderer-audio-adapter.ts`                | Allowed dedicated stingers to play once where provisional duplicate suppression previously muted reused cues.               |
| `src/extensions/ai-rogue/runtime/__tests__/audio.test.ts`                  | Added stinger URL, cooldown, ducking, mute/volume, failure, and disposal coverage.                                          |
| `src/extensions/ai-rogue/runtime/__tests__/renderer-audio-adapter.test.ts` | Covered all seven adaptive moments and no-repeat transition behavior.                                                       |
| `tests/e2e/ai-rogue-runtime.spec.ts`                                       | Updated desktop/mobile browser proof for dedicated stinger fetches, source starts, fallback, and product-copy checks.       |
| `src/assets/ai-rogue/audio/sfx/provenance.json`                            | Added stinger prompt, synthesis, render, byte-count, duration, codec, channel, and sample-rate metadata.                    |
| `docs/extensions/ai-rogue/game-feel.md`                                    | Documented the shipped stinger pack, fallback behavior, and Session 08 acoustic-listening scope.                            |
| `docs/extensions/ai-rogue/README.md`                                       | Updated the AI Rogue audio summary for dedicated adaptive stingers.                                                         |
| `.spec_system/PRD/phase_36/session_07_adaptive_stinger_pack.md`            | Recorded delivered assets, validation evidence, review caveats, completion date, and Session 08 handoff.                    |
| `.spec_system/PRD/phase_36/PRD_phase_36.md`                                | Marked Session 07 complete and updated Phase 36 progress to 7/8.                                                            |
| `.spec_system/state.json`                                                  | Added Session 07 to completed sessions, appended completion history, and cleared current session.                           |
| `README.md`                                                                | Updated the version line to 0.5.63.                                                                                         |
| `docs/CHANGELOG.md`                                                        | Added the Phase 36 Session 07 closeout entry.                                                                               |
| `package.json`                                                             | Bumped package version from 0.5.62 to 0.5.63.                                                                               |

***

## Technical Decisions

1. **Dedicated cues behind stable request IDs**: Existing adaptive request IDs remain unchanged while their profiles now point at dedicated stinger cues.
2. **Local synthesis for this pack**: The committed stingers are local ffmpeg synthesis outputs with explicit provenance, avoiding an external generation blocker while preserving future replacement scope.
3. **Presentation-only routing**: Adaptive triggers remain in runtime and renderer-adapter layers and do not change simulation state, RNG, saves, or progression.
4. **Failure-safe playback**: Missing URLs, failed fetches, failed decodes, unavailable Web Audio, mute, volume changes, cooldowns, and disposal stay no-throw paths.

***

## Test Results

| Metric                           | Value             |
| -------------------------------- | ----------------- |
| Full Vitest                      | 4410 passed       |
| Focused runtime/script tests     | 68 passed         |
| Focused Playwright browser proof | 2 Chromium passed |
| Typecheck                        | Passed            |
| Script typecheck                 | Passed            |
| Lint                             | Passed            |
| Asset-size check                 | Passed            |
| Coverage                         | Not collected     |

***

## Lessons Learned

1. Stable adaptive request IDs made it possible to swap provisional cues for dedicated stingers without spreading changes into simulation modules.
2. Browser audio proof can validate fetches, source starts, fallback, and copy cleanliness, but it still cannot replace human acoustic listening.
3. Generator retry boundaries need tests because media scripts can otherwise spend extra external calls on non-retryable local or HTTP failures.

***

## Future Considerations

Items for future sessions:

1. Session 08 should perform final full-pack human listening for masking, fatigue, loudness balance, and cue clarity.
2. Decide whether the locally synthesized stingers should remain final or be replaced by credentialed external SFX masters.
3. Keep adaptive stingers restrained and presentation-only unless a later PRD explicitly asks for new saved preferences or gameplay-affecting audio state.

***

## Session Statistics

* **Tasks**: 20 completed
* **Files Created**: 16
* **Files Modified**: 16
* **Tests Added**: focused engine, adapter, generator, and browser proof coverage
* **Blockers**: 0 resolved


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