# chappi-core
`chappi-core` implements Chappi v1's typed cognitive graph, semantic
validation, immutable patch replay, focus streams, deterministic reentry
capsules, projections, and measurement engine.
It depends on `chappi-syntax` for parsing and canonical S-expression handling.
The core has no network, model, tool-execution, or platform-specific runtime
dependency. API documentation is available on
[docs.rs](https://docs.rs/chappi-core/0.1.0/).
Chappi stores explicit resumable semantic state; it is not a format for hidden
chain-of-thought.