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F25. rotationTick returned early for claude before reaching federatedTurn, which has one call site below that return. On the harness both burn-in runs used, no phase request could ever be read and every human decision recorded against a live session went undelivered. Claude still skips the occupancy state machine below, because it owns its context rollover through the installed hook. A turn boundary is not a rotation. F26. The phase brief listed every domain-legal target, so run 4's frame session read "research, implement" and asked for implement, which the project's path refuses. The path is Orchestra's to know: the brief now names one step and says a wrong target comes back with the right one. F27. A refused request only reached recordError, leaving the agent to rewrite the same rejected file forever with nothing telling it why. federation. StatusError makes a 409 classifiable, and the refusal is delivered through sendPrompt under the F20 guarantee. A transport failure is not an answer: the request survives and the agent is told nothing. The F25 regression test fails against the unfixed rotationTick. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011xsXyr5J1RACo71YeKG3Pu