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Forge architecture

Architecture reference for Forge's versioned workflow control plane, typed stations, reconciliation, durable effects, execution inspection, and model-output boundaries.

For workflow details, see the Feature, Bug, and Task guides. For API reference, see the OpenAPI spec at /docs when the gateway is running.

Part Contents
Control-plane architecture Ownership boundaries and safe project/core extension paths
System and components Control-plane structure and component responsibilities
Runtime internals State authority, reconciliation, stations, effects, and security
Reference Architectural decisions, known limitations, workflow lifecycles
Structured model output Typed model responses and provider fallback behavior