Jesse_ChenandClaude Opus 5.5
e62d0a3257
The answered choice persists the acknowledgement, a blank line, and the rewritten delivery. The exit fill-in required equality and wrote the deterministic delivery again. Check containment instead, and pin it on the real answer path. The suspected widen staleness regression did not hold; keep a guard test. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N4f2nya58RoRu4yEmJgRGE