agent_mcp

The bridge that exposes a C+ app's agent surface to an external agent over MCP. It speaks JSON-RPC 2.0 — describe_ui, actions, and events — over Unix-domain sockets:

• serve_uds — serve on a Unix-domain socket path.
• serve_fd — serve on an already-open file descriptor.

Every request passes through an agent_core consent AuthGate before it reaches the app, so the wire protocol grants no authority of its own: the same consent and affordance-ceiling rules apply whether a call arrives in-process or over the socket.

Point an MCP client at the socket to let an agent describe, drive, and observe the app. The appkit_agent recipe wires this together with agent_appkit.