# Progress - reviewer_m4_1

Last visited: 2026-10-02T04:28:00Z
Status: Complete (Milestone 4 Graphics Overhaul Review)

## Tasks
- [x] Process dispatch message and append to DISPATCH.md
- [x] Re-read BRIEFING.md and update context for M4 30 Biomes & Graphics Overhaul
- [x] Read authoritative request (ORIGINAL_REQUEST.md ## 2026-10-02T02:00:04Z), PROJECT.md, and worker_m4_qa/handoff.md
- [x] Inspect codebases: `tile_map_renderer.js` and `biome_texture_manager.js`
- [x] Run independent verification suite:
  - Pytest baseline: `tests/unit/test_map_styles_db.py`, `tests/unit/test_map_styles_catalog_sync.py`, `tests/unit/test_map_style_assets_integrity.py`, `tests/e2e/test_30_biomes_generation_e2e.py`, `tests/security_fuzzing/test_map_styles_adversarial.py`, `tests/unit/test_map_styles_adversarial.py`, `tests/unit/test_map_styles_adversarial_stress.py` (379/379 passed in 9.81s)
  - Node.js tests: `node tests/unit/test_biome_texture_manager.js` (8/8 passed)
  - Challenger stress tests (ALL passed)
  - Hygiene linter: `python tools/lint/check_code_and_doc_hygiene.py --strict` (0 hard cap violations)
- [x] Adversarial critic stress-testing:
  - Authenticity of CanvasPattern / drawImage verified
  - Dirty flag & zero redundant re-bakes on static frames verified
  - RAM ceiling adherence (16.01 MB <= 16.5 MB) verified
  - Graceful procedural fallback verified
  - Code hygiene & soft cap (`tile_map_renderer.js`: 334 lines, `biome_texture_manager.js`: 301 lines <= 350) verified
  - Integrity violation checks (0 violations confirmed)
- [x] Complete handoff.md with structured review & adversarial challenge verdict (APPROVE)
- [x] Notify parent via send_message