A fire-and-forget cross-system write bypassed the append-only outbox described in LINEAR-OUTBOX.md. Logs show the write happened outside the outbox. Telemetry indicates downstream systems processed it without a completion event. The incident began immediately after that unauthorized write. Root cause analysis confirmed the absence of an enforcement hook, as documented in RAILS.md. The system state showed partial data propagation and failed verification commands. This aligns with the mechanism of data inconsistency caused by uncoordinated writes.
FINAL: Fire-and-forget cross-system write bypassing append-only outbox.
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