# Progress — challenger_i18n_m2_2

- Last visited: 2026-10-02T02:45:30Z
- Status: Adversarial challenge completed. Verdict: CONFIRM_CORRECT. Reports generated.

## Steps
- [x] Step 1: Initialize DISPATCH.md, BRIEFING.md, and progress.md
- [x] Step 2: Read ORIGINAL_REQUEST.md, PROJECT.md, and worker_m2_1 handoff/report
- [x] Step 3: Inspect existing tests (`test_i18n_event_bus.py`, `test_i18n_reactive_switching_e2e.py`) and implementation
- [x] Step 4: Formulate adversarial stress testing plan & test harnesses
- [x] Step 5: Write adversarial stress test script `tests/e2e/test_challenger_i18n_m2_stress.py` (320 lines)
- [x] Step 6: Write unit-level high-throughput stress test `tests/unit/test_challenger_m2_i18n_stress.py` (251 lines)
- [x] Step 7: Execute adversarial tests empirically (all 14 passed in 17.45s)
- [x] Step 8: Update BRIEFING.md with attack surface results
- [x] Step 9: Produce challenge_report.md and handoff.md with verdict: CONFIRM_CORRECT
- [x] Step 10: Send message to orchestrator_13