Creates the session record, appends the initial instruction as a user message event, and triggers the agent workflow — all in a single call. The session_id must be a client-generated UUID v4 and is used to idempotently reference the session afterward.
Organization ID
Client-generated UUID v4 for the session
Session start parameters
ID of the agent to run for this session.
Initial instruction sent to the agent as the first user message.
Human-readable label for the session.
Caller identifier (e.g. command-center, api).
ID of an existing prospect to associate with the session.
Session started
The UUID of the newly started session.