MCP Servers

A custom MCP reference identifies a server already owned by the organization:

{"kind":"custom","serverId":"550e8400-e29b-41d4-a716-446655440000"}

Agent configuration

Add the reference to the Agent's mcpServers array. The server ID must be a UUID owned by the same organization as the Agent.

Credentials

Credentials and connection grants are stored separately in Rebyte. Do not put secrets in the Agent definition or agent.toml.

Execution events

MCP calls appear in the Responses stream as response.mcp_call.* events and as durable mcp_call output items on the completed Response.