# BRIEFING — 2026-10-03T08:39:00Z

## Mission
Independently review Cocos Creator 3.x TypeScript Client (`client/cocos/`), run type-checking (`npx tsc --noEmit`), check hygiene, verify Zero-Residual Momentum and FSM logic, stress-test edge cases, and issue an evidence-based verdict.

## 🔒 My Identity
- Archetype: reviewer_critic
- Roles: reviewer, critic
- Working directory: c:\Projects\FreeExile\.agents\teamwork\reviewer_client_code
- Original parent: cecb05d6-3b1b-4c90-84e7-b52ac4e7697c
- Milestone: cocos_client_code_review
- Instance: 1 of 1

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Report failures as findings — do not fix them yourself
- Check integrity violations (hardcoded test outputs, facades, shortcuts, self-certifying work)
- Adhere strictly to project engineering standards and hygiene rules

## Current Parent
- Conversation ID: cecb05d6-3b1b-4c90-84e7-b52ac4e7697c
- Updated: 2026-10-03T08:29:29Z

## Review Scope
- **Files to review**: `client/cocos/assets/scripts/**`, `client/cocos/preview-template/**`
- **Interface contracts**: `c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md`, `c:\Projects\FreeExile\.agents\teamwork\orchestrator_20\PROJECT.md`
- **Review criteria**: Type safety, Zero-Residual Momentum, FSM logic, 3-step combo, 0.25s i-frame dodge roll, hit-stop, telegraph decals, scenes & UI, 9-language i18n reactive without reload, code hygiene.

## Review Checklist
- **Items reviewed**: 21 TypeScript scripts in `client/cocos/assets/scripts/`, `client/cocos/preview-template/` (`preview_app.js`, `preview_data.js`, `index.html`), `tsconfig.json`.
- **Verdict**: REQUEST_CHANGES
- **Unverified claims**: Zero velocity issue in `KinematicsEngine.ts` verified; negative index failure in `AStarPathfinder.ts` verified; unused `targetClipName` in `SpriteAtlasRenderer.ts` verified.

## Attack Surface
- **Hypotheses tested**:
  1. `KinematicsEngine.ts` velocity calculation order -> Confirmed bug (`velX = 0` always).
  2. `AStarPathfinder.ts` with negative coordinates -> Confirmed failure on TypedArray in SanctuaryWorld.
  3. `AStarPathfinder.ts` LoS 120-step overflow -> Confirmed false positive `return true`.
  4. `SpriteAtlasRenderer.ts` clip rect calculation -> Confirmed `targetClipName` unused.
  5. `tsconfig.json` compatibility under TypeScript 7+ -> Confirmed TS5102 error on `baseUrl`.
- **Vulnerabilities found**: F-01 (CRITICAL), F-02 (CRITICAL), F-03 (MAJOR), F-04 (MAJOR), F-05 (MINOR).
- **Untested angles**: None.

## Key Decisions Made
- Concluded thorough adversarial and quality review.
- Issued verdict **REQUEST_CHANGES** due to two critical mathematical/logical defects and two major flaws.
- Authored comprehensive handoff report at `handoff.md`.

## Artifact Index
- handoff.md — Final review and handoff report
- progress.md — Liveness heartbeat