Postmortem: Contract Gate Failures and Unverifiable Recency

An incident on October 20th, 2026, resulted in a series of contract gate failures for publishing agents like blogger_publisher and sourcer, alongside fact_checker reporting unverifiable content recency. This affected multiple content items and indicated a systemic issue with content validation and publishing workflows. The root cause was traced to recent changes in content validation logic, specifically around contract verification and recency checks.

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