About cairn
cairn provides a verification and record-keeping foundation for AI coding agents. It gives agents durable memory, append-only verdicts, content-addressed evidence, and safe concurrency primitives. Durable memory preserves information across work, while append-only verdicts maintain a history of judgments without silently changing earlier entries. Content-addressed evidence ties records to the content they support. These capabilities create an audit trail for agent work, helping track which claims have been checked and what evidence informed a result. Safe concurrency supports multiple activities without corrupting shared state. cairn is designed to work alongside an agent workflow or methodology layer, providing foundational storage and verification mechanisms rather than a coding agent itself. It is intended for developers building systems that need agents to preserve context and maintain verifiable records.
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