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thread.conversation.revert and thread.checkpoint.revert rewrite the conversation and working tree underneath a live turn. The client blocks this, but a stale client or a direct command can still reach the server. The decider now rejects both commands while the thread session is starting or running, mirroring the existing session-stop guard. Tests: decider.revertGuard 4/4 green (red-on-base: 2 failed, 2 passed). Authored with AI assistance (Muse, Meta's Muse Spark) under the contributor's direction.
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This was referenced Oct 16, 2026
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What Changed
The decider now rejects
thread.conversation.revertandthread.checkpoint.revertwhile the thread session is starting or running, mirroring the existing session-stop guard.Why
Both commands rewrite the conversation and working tree underneath a live turn. The client blocks this, but a stale client or a direct command can still reach the server.
Validation
decider.revertGuard4/4 green (red-on-base: 2 failed, 2 passed).Checklist
Authored with AI assistance (Muse, Meta's Muse Spark) under the contributor's direction.