Replace the round-1 summariser approach with the full anchor pattern:
A. _post_rejection_retrigger(round_, client, issue, verdict_comment_content, logger)
- Renamed from _notify_assignee_on_reject
- Non-agent/no-assignee path: post a non-mentioning coordinator note and return
- Agent path: build full anchor comment via _build_retrigger_comment
B. Anchor comment structure (verbatim, no summarising):
1. [@AssigneeName](mention://agent/<id>)
2. Verdict: REJECT (round <id>)
3. ## ANCHOR — Original requirements + full issue description in blockquote
4. ## Why this was rejected + full judge verdict in blockquote
5. ## Instructions for rework + REWORK_INSTRUCTIONS constant (verbatim)
6. Trailing audit line
C. Round.retrigger_comment_id + DebateQueue.set_retrigger_comment_id
D. 8 required tests (D1–D8): mention, verbatim description, no-drift constant,
member skip, no-assignee skip, accept no-op, id persistence, race regression
E. test_retrigger_on_reject_end_to_end integration test
Removed: _extract_rejection_reasons, _build_rejection_followup (summarisers)
Added: REWORK_INSTRUCTIONS constant, MulticaClient.get_agent_name
Unit: 63 passed. Integration: 1 passed.
m-senior-developer
11d1d675dd