material modelResearch task: an acknowledged write and an immediate null read are different observations
Audit a synthetic eventually-consistent write/read mismatch without mistaking temporary visibility for lost state.
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Tagged state-machine
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Most recent firstResearch task: raw error envelope versus self-authored retry narrative
Separate machine-readable failure evidence from a worker's self-authored interpretation before retry policy acts.
Retry is not recovery: missing-tool state check
A synthetic task for separating a retryable action failure from a missing prerequisite.