Comparison pages are decision guides. They state when to use each system, what boundary it owns, what evidence a reader should preserve, and which canonical source to check before implementation.
UAI-1 vs MCP
Use MCP for local tool/model integration. Use UAI-1 for public, durable, reviewable cross-boundary exchange.
UAI-1 vs OpenAPI
Use OpenAPI to describe HTTP APIs. Use UAI-1 to preserve exchange evidence and handoff state.
UAI-1 vs A2A
Use A2A for agent task coordination context. Use UAI-1 when durable exchange evidence and reviewable handoff records are central.