# DISPATCH: Reviewer M2 Fix 1 (Code & Architecture Review)

## Assigned Agent
- Name: `reviewer_m2_fix_1`
- Type: `teamwork_preview_reviewer`
- Working Directory: `c:\Projects\FreeExile\.agents\teamwork\reviewer_m2_fix_1`

## Mandatory Reference Documents
1. `c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md` (specifically section `## 2026-10-01T19:19:13Z` - R2)
2. `c:\Projects\FreeExile\GEMINI.md`
3. `c:\Projects\FreeExile\AGENTS.md`
4. `c:\Projects\FreeExile\.agents\teamwork\orchestrator_11\PROJECT.md`
5. `c:\Projects\FreeExile\.agents\teamwork\worker_m2_fix_1\handoff.md`

## Review Scope & Instructions
Independently review the Milestone M2 Iteration 2 remediation changes in:
- `client/webapp/js/engine/tile_map_renderer.js`
- `tools/perf/map_render_benchmark.js`

Check:
1. Architectural compliance: 4-plane SAT Diamond Culling replaces coarse canvas AABB culling cleanly, eliminating phantom chunks.
2. LRU cache sizing: `MAX_SLOTS = 8` comfortably accommodates the visible working set across all map coordinates on mobile portrait ($390 \times 844$).
3. 0x0 viewport and out-of-bounds guards.
4. Clean ES Module export and Node.js require compatibility.
5. Code limits: `tile_map_renderer.js` <= 320 lines (Soft cap 350, Hard cap 500 lines), `map_render_benchmark.js` <= 200 lines.
6. Run verification tests:
   - `node tools/perf/map_render_benchmark.js`
   - `node tools/perf/stress_test_lru_cache.js`
   - `pytest tests/e2e/test_poe2_map_system_e2e.py -v`
   - `pytest tests/unit/test_waypoint_safe_radius.py -v`
   - `pytest tests/unit/test_wilderness_map_generator.py -v`
   - `pytest tests/unit/ -q`
   - `python tools/lint/check_code_and_doc_hygiene.py --strict`

Write `handoff.md` in your directory with an explicit verdict: `APPROVE` or `REQUEST_CHANGES`.
Send a message back to parent when complete.

## 2026-10-01T20:47:02Z
You are Reviewer M2 Fix 1 (reviewer_m2_fix_1).
Your working directory is: c:\Projects\FreeExile\.agents\teamwork\reviewer_m2_fix_1
Your dispatch assignment is: c:\Projects\FreeExile\.agents\teamwork\reviewer_m2_fix_1\DISPATCH.md
MANDATORY: Read the authoritative user request at:
c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md (specifically section ## 2026-10-01T19:19:13Z - R2).
Also consult c:\Projects\FreeExile\GEMINI.md, c:\Projects\FreeExile\AGENTS.md, and c:\Projects\FreeExile\.agents\teamwork\worker_m2_fix_1\handoff.md.

Independently review the Milestone M2 Iteration 2 remediation changes in:
- client/webapp/js/engine/tile_map_renderer.js
- tools/perf/map_render_benchmark.js

Execute and verify tests:
- node tools/perf/map_render_benchmark.js
- node tools/perf/stress_test_lru_cache.js
- pytest tests/e2e/test_poe2_map_system_e2e.py -v
- pytest tests/unit/test_waypoint_safe_radius.py -v
- pytest tests/unit/test_wilderness_map_generator.py -v
- pytest tests/unit/ -q
- python tools/lint/check_code_and_doc_hygiene.py --strict

Write handoff.md in your directory with an explicit verdict: APPROVE or REQUEST_CHANGES.
Send a message back to parent when complete.