# Progress Log — Challenger 2 (Milestone M1 Iteration 2 Gate Verification)

- **Status**: Completed empirical probing, verification suites, and handoff compilation.
- **Last visited**: 2026-10-09T05:08:30Z

## Checklist
- [x] Received dispatch & initialized BRIEFING.md
- [x] Read ORIGINAL_REQUEST.md, PROJECT.md, and worker_m1_remediation_2/handoff.md
- [x] Empirically run `tests/test_m1_challenger2_probe.py` (41/41 PASS, 0 anomalies)
- [x] Empirically probe Scene 10, Scene 06, Scene 05 live shot resolutions (100% verified)
- [x] Test adversarial metadata injection (corrupted character_asset_ref opposite to character anchor - 100% override confirmed)
- [x] Run `tests/test_critic_gate.py` (30/30 PASS) and `tests/test_m2_hygiene.py` (6/6 PASS)
- [x] Run `tests/test_tier1_features.py -k "not test_render"` (65/65 PASS)
- [x] Author `tests/test_adversarial_deep_probe.py` (13/13 PASS)
- [x] Discovered and documented advisory defect on `tieu_dong_kim_trong` substring shadowing
- [x] Update BRIEFING.md with Attack Surface and findings
- [x] Compile handoff.md with final empirical verdict: APPROVE
- [ ] Send completion message to parent orchestrator