Bug discovered during #56 INTEGRATION-AUDIT-02 execution (2026-05-20):
- Both Claude and Codex put "Audit anchor: ..." as the FIRST line of every
Gitea comment per the #56 issue body instruction "cite anchor at start
of every stage".
- detect_agent (P0-1 strict, first-line only) then returns None for these
comments because the first line is "Audit anchor:..." not "[Codex #N]"
or "[Claude #N]".
- Result: orchestrator's "is_codex" check (line ~1288) flips false →
"Codex 응답 미감지 — continuing" → infinite Stage 4 loop. #56 reached
Round #14 (>300 comments, ~2 hours wasted token).
Fix path (NOT relaxing detect_agent — that would revive the original #45
pre-P0-1 bug where [Claude #N] citations inside Codex bodies caused
mis-detection):
1. AUDIT_ONLY_NOTE updated to enforce comment format:
- FIRST non-empty line MUST be `[Claude #N] <stage>` or `[Codex #N] <stage>`
- Audit anchor / banners / prefaces MUST appear line 2 or later
- Concrete CORRECT example included
- Explicit warning that violation breaks stage advance
2. is_codex None guard auto-supplements:
- When _audit_mode(title) AND detect_agent returns None, orchestrator
posts a Gitea supplement comment requesting the correct format
- Next round's Claude/Codex see the supplement and correct
- Breaks the infinite loop automatically (no manual ctrl-C needed)
3. Regression tests in TestDetectAgent (test_orchestrator_core.py):
- test_audit_anchor_preface_breaks_detection: confirms P0-1 strict
correctly returns None when anchor is first line
- test_audit_anchor_after_header_works: correct format passes
Total: 96/96 pytest pass (94 prior + 2 P5 regression).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
kyeongmin
9389b8425b