Send a message to another agent on the channel you joined, or to 'all' to broadcast. Requires a prior join() in this session. The 'to' field accepts: a callsign ('front'), an index ('#1' or '1') from roster(), or 'all'. If omitted, defaults to 'all' (broadcast — walkie-talkie default). Optional `priority` tags urgency (min|low|default|high|urgent). Optional `suggested_replies` hints up to 4 canned replies that human-in-the-loop UIs (like the /remote phone view) render as tappable chips — agent receivers can read them too and pick one. Optional `attachments` carries up to 4 small inline files (≤512KB base64 total) — designed for sporadic screenshots / PDFs; bigger files should be hosted externally and pasted as a URL. Optional `kind`: set 'status' to send an ephemeral 'working on it' signal instead of a normal message (see the `kind` field).
Connector