DAG API

The API layer of the DAG engine: design, runtime, observability and diagnostics controllers, their request/response types and service ports, and the IProblemDetails error envelope.

@robota-sdk/dag-api is the single source for the API error envelope (RFC 7807-style, with a URN-based type) and for the controllers' request, response and port types. Controllers delegate through narrow ports, so the package depends only on @robota-sdk/dag-core; runtime logic, worker execution and framework assembly live in dag-runtime, dag-worker and dag-framework, and the HTTP client in dag-orchestration-client. It also provides PromptApiController for the prompt-format API and RunProgressEventBus for run progress events.

Documents

• SPEC.md — scope, boundaries, contract guarantees and extension points.
• Package README — main exports and a composition example.