# Dispatch: Challenger M5 Fix 1 (challenger_m5_fix_1)

**Target Role**: `teamwork_preview_challenger`
**Working Directory**: `c:\Projects\FreeExile\.agents\teamwork\challenger_m5_fix_1`
**Authoritative User Request**: `c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md` (specifically section `## 2026-10-01T19:19:13Z` - R5)
**Challenger Iteration 1 Report**: `c:\Projects\FreeExile\.agents\teamwork\challenger_m5_1\handoff.md`
**Worker Remediation Handoff**: `c:\Projects\FreeExile\.agents\teamwork\worker_m5_fix_1\handoff.md`

---

## Mission
Empirically stress-test the remediated grid pathfinding engine (`grid_pathfinder.js`):
1. Re-test Long-Range DDA Raycasting:
   Run `node --expose-gc tools/perf/stress_test_grid_pathfinder.js` and custom raycast stress tests across rays spanning 70–120 tiles on a 120x90 grid.
   Verify that rays with intervening walls return `false` 100% of the time (0 false positives).
2. Re-test A* Path Reconstruction Buffer:
   Verify that on long paths (e.g. 80-tile open corridor), the first returned waypoint `outX[0], outY[0]` is immediately adjacent to the starting tile (`dist <= 1.5` tiles), eliminating waypoint disconnection.
3. Verify Zero-Heap Allocation:
   Confirm 0 GC events over 5,000 rapid pathfinding queries.
4. Non-regression of existing test suites:
   - `pytest tests/unit/test_encounter_zones.py -v`
   - `pytest tests/unit/test_tile_collision.py -v`
   - `pytest tests/e2e/test_poe2_map_system_e2e.py -v`

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

## 2026-10-01T22:53:32Z
You are Challenger M5 Fix 1 (challenger_m5_fix_1).
Your working directory is: c:\Projects\FreeExile\.agents\teamwork\challenger_m5_fix_1
Your dispatch assignment is: c:\Projects\FreeExile\.agents\teamwork\challenger_m5_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 - R5).
Also read c:\Projects\FreeExile\GEMINI.md, c:\Projects\FreeExile\AGENTS.md, c:\Projects\FreeExile\.agents\teamwork\challenger_m5_1\handoff.md, and c:\Projects\FreeExile\.agents\teamwork\worker_m5_fix_1\handoff.md.

Empirically stress-test the remediated grid pathfinding engine (grid_pathfinder.js):
1. Re-test Long-Range DDA Raycasting:
   Run node --expose-gc tools/perf/stress_test_grid_pathfinder.js and custom raycast stress tests across rays spanning 70–120 tiles on a 120x90 grid.
   Verify that rays with intervening walls return false 100% of the time (0 false positives).
2. Re-test A* Path Reconstruction Buffer:
   Verify that on long paths (e.g. 80-tile open corridor), the first returned waypoint outX[0], outY[0] is immediately adjacent to the starting tile (dist <= 1.5 tiles), eliminating waypoint disconnection.
3. Verify Zero-Heap Allocation:
   Confirm 0 GC events over 5,000 rapid pathfinding queries.
4. Non-regression of existing test suites:
   - pytest tests/unit/test_encounter_zones.py -v
   - pytest tests/unit/test_tile_collision.py -v
   - pytest tests/e2e/test_poe2_map_system_e2e.py -v

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