agent-frame

A pure Rust derivation and causal-event kernel. It has no filesystem, async, HTTP, or inference dependency. The newt-harness crate adds durable storage, ordered request projection, navigation policy, and restoration; agent-harness-py exposes the same admission boundaries to Python through PyO3.

Unit and Derivation identify source spans and verify proof-carrying elision. RootEvent identifies admitted source material. Packet remains a chain with at most one predecessor and an ordered list of unit identities. Event adds causal DAG links for observations, interventions, verdicts, retrieval, and elision without changing packet geometry. Every identity and canonical encoding comes from content-addressable.

Decode an event into RawEvent, then call Event::admit with a resolver for all referenced causal events. Construction and admission enforce the same origin, source-membership, and derivation-depth rules. Observations have depth zero; generated material has depth at most one; retrieval and elision preserve source origin and depth. The host separately resolves root and payload bytes, verifies elision units, and enforces authority. A generated reply verdict proves its schema and provenance; it does not establish factual truth or task correctness.

EventOrigin::Historical identifies imported transcript data whose original execution was not accounted by this Frame. It is a source observation for catalogs, elision, and retrieval, which preserve that origin. It cannot stand in for a current operator anchor, an observed tool output, or a model-verdict target. Quoted historical claims remain claims even when their stored bytes have been verified.

Licensed under the workspace Apache-2.0 license.