It checked its own plain flag first and returned, so the turn was never read and never tracked; the effect ran once and slept. The turn is read first now, and the flag is reactive. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Jm2auWk6RP71CjaAb4FMoG