# Progress — challenger_18_2

Last visited: 2026-10-02T07:00:00Z

- [x] Initialized DISPATCH.md and BRIEFING.md
- [x] Reviewed reference documents (`ORIGINAL_REQUEST.md`, `PROJECT.md`, `TEST_READY.md`, `worker_iter3/handoff.md`)
- [x] Inspected `client/web_pc/` and test suites
- [x] Ran targeted layout/E2E test suite (4 passed, 100% clean)
- [x] Wrote comprehensive adversarial test harness (`adversarial_resilience_test.py`)
- [x] Executed adversarial resilience test harness
- [x] Uncovered 2 uncaught JavaScript runtime exceptions with full stack traces (`trace_errors.py`)
- [x] Ran layout unit test suite (`test_pc_web_client_layout.py` - 10 passed in 0.15s)
- [x] Updated BRIEFING.md with empirical findings and attack surface metrics
- [ ] Write handoff.md with 5 components and clear verdict (REJECT)
- [ ] Notify parent via send_message