AI Core DocsPublic SDK and runtime documentation

FFI boundary, runtime contracts, AI packages, pipelines, and local model providers.

Versioned docs

The current public site tracks `v0.1`, while older published versions stay available from the Version menu in the top navigation.

The docs cover the public FFI boundary, bindings, and integration-facing APIs instead of internal repository workflow.

Quick start, runtime contracts, AI packages, speech, and local model provider pages stay grouped under the same versioned structure.