# Progress Tracker — challenger_m2_1_gen4b

Last visited: 2026-10-01T07:15:40Z

## Status
Initializing empirical challenge sequence.

## Planned Steps
1. [x] Setup DISPATCH.md, BRIEFING.md, and progress.md.
2. [ ] Run full adversarial suite `pytest tests/unit/test_challenger_m2_adversarial.py -v` and inspect the 89 test cases (specifically the 9 previously failing tests).
3. [ ] Run other baseline suites: `tests/unit/test_m2_animation_and_combat_feel.py`, `tests/e2e/test_poe2_ui_animation_vfx_e2e.py`, and hygiene lint.
4. [ ] Build & run empirical stress test harness for `CombatFeelEngine`:
   - `getShakeOffset()` under rapid `triggerScreenShake` calls, zero intensity, long duration, frame decay.
   - `hitStopTimer` decay under irregular `dt` intervals (dt=0, dt=0.001, dt=1.0, negative dt, NaN dt).
5. [ ] Build & run empirical stress test harness for `AnimationEngine`:
   - Rapid action cancellation: trigger attack -> cancel -> trigger attack -> cancel in tight loops.
   - High attack speeds (2.0x, 3.0x, 5.0x) and variable FPS (15, 30, 60, 120 FPS) verifying `kineticPhase` synchronization and state consistency.
6. [ ] Build & run empirical stress test harness for `WeaponSwingRenderer`:
   - Trigger swings across Slash, Thrust, Slam, Bolt archetypes -> cancelWindup() -> assert no phantom visual artifacts or leaks.
7. [ ] Synthesize findings, update BRIEFING.md, and author `handoff.md` with explicit verdict.