# BRIEFING — 2026-10-02T02:38:00Z

## Mission
Perform independent review and adversarial stress-testing of Milestone 2 (30 isometric map styles, 360 tile assets, normal maps compliance, size limits, test suites, and hygiene).

## 🔒 My Identity
- Archetype: reviewer
- Roles: reviewer, critic
- Working directory: c:\Projects\FreeExile\.agents\teamwork\reviewer_m2_2\
- Original parent: 327366ba-dd05-4805-b53b-659a199b1450
- Milestone: Milestone 2
- Instance: 2 of 2 (reviewer_m2_2)

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code
- Actively check for integrity violations (hardcoded test results, facade implementations, shortcuts, fabricated verification, self-certifying work)
- If any integrity violations are detected, verdict MUST be REQUEST_CHANGES with a Critical finding tagged as INTEGRITY VIOLATION
- File and directory path discipline (.agents/teamwork/reviewer_m2_2/ only for metadata)

## Current Parent
- Conversation ID: 327366ba-dd05-4805-b53b-659a199b1450
- Updated: 2026-10-02T02:38:00Z

## Review Scope
- **Files to review**: `client/webapp/assets/map/styles/`, generator scripts in `tools/asset_pipeline/`, tests in `tests/unit/test_map_style_assets_integrity.py`, handoff reports from worker_m2 and test_writer_m2
- **Interface contracts**: `c:\Projects\FreeExile\.agents\teamwork\orchestrator_14\PROJECT.md`, `c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md`
- **Review criteria**: 30 styles, 360 files, tangent-space normal maps (B_mean > 128), total size < 6MB, tile size < 50KB, tests pass, hygiene checks pass

## Review Checklist
- **Items reviewed**:
  - `client/webapp/assets/map/styles/` (all 30 styles, 360 files)
  - `tools/asset_pipeline/generate_30_map_styles_assets.py` (procedural asset generator)
  - `tools/asset_pipeline/m4_normal_utils.py` (Sobel tangent normal operator)
  - `tests/unit/test_map_style_assets_integrity.py` (249 unit tests)
  - Related test suites: `test_map_styles_db.py`, `test_map_styles_catalog_sync.py`, `test_map_styles_adversarial.py`, `test_wilderness_map_generator.py`, `test_tile_collision.py`, `test_war_fog_and_procedural_map.py` (392 tests total)
  - Hygiene linter: `python tools/lint/check_code_and_doc_hygiene.py --strict`
- **Verdict**: APPROVE
- **Unverified claims**: None. All claims verified via independent commands, byte-level and pixel-level scripts.

## Attack Surface
- **Hypotheses tested**:
  - Dummy/facade image generation: Disproven. Multi-octave harmonic noise and Worley crack generation verified.
  - Sub-128 Blue channel in normal maps: Disproven. All 1,228,800 pixels verified with $B \ge 128$, B_mean in $[246.05, 254.05]$.
  - Vector normalization: Confirmed average $\|\vec{N}\| = 0.9976 \approx 1.0$.
  - Truncated or empty PNGs: Disproven. All 360 files verified with valid PNG header magic.
  - Size budget overrun: Disproven. Total size 1.57 MB (< 6 MB), max tile 12.17 KB (< 50 KB).
  - Code hygiene hard cap violations: Disproven. 0 hard cap violations.
- **Vulnerabilities found**: None critical/major. Identified minor semantic prop grouping leading to 18 duplicate prop image hashes across styles, and direct alpha writing on path pebbles.
- **Untested angles**: WebGL in-browser shader execution (deferred to Milestone 4 QA Gate).

## Key Decisions Made
- Independent verification confirmed full compliance of Milestone 2 deliverables.
- Verdict formulated as APPROVE.

## Artifact Index
- DISPATCH.md — dispatch log
- progress.md — liveness heartbeat
- BRIEFING.md — working memory
- handoff.md — structured review and verification report