Post a message to a work session
Writes your message onto the timeline and starts one turn per agent you mention.
mentions takes agent handles or ids. A handle that resolves to no published agent is returned in unresolvedMentions and starts nothing — it is never an error; an agent whose turn the platform could not start is returned in failedMentions, so you can retry that one. startedTurnIds names the turns this message began; a mention of an agent that is already working steers its live turn instead and is not listed. Files in fileIds join the session’s working set for good.
Turns start before the message is written, so a turn_started entry holds a lower seq than the message that caused it; the message names the turns it started.
Learn more: Work sessions
Authentication
Bearer authentication of the form Bearer <token>, where token is your auth token.