# Progress — worker_chat_m1_1

Last visited: 2026-10-01T01:05:00Z

## Status
- [x] Initialized DISPATCH.md and BRIEFING.md
- [x] Inspect current files in `server/chat/` and `tests/unit/`
- [x] Implement Item 1: `chat_cluster_router.py` sync callback handling & Redis 7 sharded pub/sub hooks
- [x] Implement Item 2: `channel_manager.py` persistent mute, duplicate spam check, ring buffer
- [x] Implement Item 3: `moderation.py` Tier 1 Trie diacritic/homoglyph/boundary masking & Tier 2 RMT detection
- [x] Implement Item 4: `item_link_service.py` full attributes HMAC verification & 24h TTL cache purge
- [x] Implement Item 5: `chat_service.py` persistent mute on auto-mute & facade hardening
- [x] Enhance unit tests in `tests/unit/test_chat_service.py` and `tests/unit/test_chat_and_moderation.py`
- [x] Run test suite, mypy strict, hygiene check, stress benchmark, security audit
- [ ] Write handoff.md and report to orchestrator