Agent Front Door
The only public way into the Fabric. Entitles the caller, freezes the route, and starts Runtime. Chat and jobs share one contract.
Agent Plane
Catalogue and classify. The Agent Control Plane and Agent Data Plane sit here. Neither pins a route nor starts Runtime.
Agent Runtime
Where the agent actually runs. Pins the freeze, hydrates capabilities, and executes the graph. Does not classify the next utterance.
Agent Audit
Append-only evidence for every run. Producers emit asynchronously. Examine a chain by correlation_id. Not on the decide hot path.
Agent Capability Plane
Publishers append id@version. Routes refer. Runtime hydrates once at pin. Not a client the loop calls on every turn.