# Progress - reviewer_m4_2

Last visited: 2026-10-02T04:28:45Z
Current Status: Independent verification complete. Writing final handoff.md.

## Tasks
- [x] Initialized DISPATCH.md and BRIEFING.md
- [x] Read ORIGINAL_REQUEST.md (## 2026-10-02T02:00:04Z)
- [x] Read PROJECT.md (orchestrator_14)
- [x] Read worker_m4_qa handoff.md
- [x] Step 1: Independent verification of data/map_styles.db (30 styles, 600 tiles, 90 props, WAL, FK)
- [x] Step 2: Code inspection of map_style_catalog.py, map_biome_catalog.py, map_binary_serializer.py
- [x] Step 3: Asset pipeline verification (360 PNGs valid, 120 normal maps with blue channel mean 246-254 > 128.0)
- [x] Step 4: Backward compatibility check with legacy biomes 1-5 and canonical zones (100% pass)
- [x] Step 5: Code & doc hygiene audit (tools/lint/check_code_and_doc_hygiene.py --strict, 0 hard cap violations)
- [x] Step 6: Adversarial stress testing (edge cases, corrupt inputs, boundary conditions)
- [x] Step 7: Integrity violation audit (0 violations found)
- [x] Step 8: Live browser visual audit via Chrome DevTools MCP (unobscured screenshots captured for Biomes 3, 10, 30; 65-75 FPS, 16.01 MB RAM)
- [ ] Step 9: Compile handoff.md and report verdict to parent