# Progress Heartbeat - reviewer_m5_fix_1

Last visited: 2026-10-01T22:54:30Z
Current state: Reading worker handoff and original request.

## Steps
- [x] Received dispatch and initialized BRIEFING.md
- [x] Read ORIGINAL_REQUEST.md (R5) and worker_m5_fix_1/handoff.md
- [x] Inspect implementation files and changes:
  - [x] client/webapp/js/engine/monster_pack_system.js
  - [x] client/webapp/js/engine/ambush_trigger_system.js
  - [x] client/webapp/js/engine/grid_pathfinder.js
  - [x] tests/unit/test_encounter_zones.py
- [x] Check integrity violations (hardcoded values, fake logic, test shortcuts)
- [x] Adversarial stress test & edge case analysis
- [x] Run test commands:
  - [x] pytest tests/unit/test_encounter_zones.py -v (16/16 PASSED)
  - [x] pytest tests/unit/test_waypoint_safe_radius.py -v (17/17 PASSED)
  - [x] pytest tests/unit/test_monster_poise_and_leash.py -v (10/10 PASSED)
  - [x] pytest tests/unit/test_fog_and_minimap.py -v (14/14 PASSED)
  - [x] pytest tests/unit/test_tile_collision.py -v (11/11 PASSED)
  - [x] pytest tests/e2e/test_poe2_map_system_e2e.py -v (81/81 PASSED)
  - [x] python tools/lint/check_code_and_doc_hygiene.py --strict (0 violations)
  - [x] pytest tests/unit/ -q (1220/1220 PASSED)
  - [x] node --expose-gc tools/perf/stress_test_grid_pathfinder.js (PASS, 0 GC thrash, 0 LoS false pos)
  - [x] node tools/perf/map_render_benchmark.js (PASS, 159k FPS)
- [x] Check line count limits on all 4 files (all under caps)
- [ ] Write handoff.md with verdict (APPROVE)
- [ ] Send message to parent