"Tell Kai Support…": the teammate's words go to the agent working the ticket (its running session's next
turn, or its run resumes), booked to the person. Never a reply to the customer and never a stop. The same
path and guards as the old POST /agents/ticket/{id}/input with mode: 'send' (the ticket's board, Kai
Copilot-only roles, files on our storage only, 409 when nobody works on it), which stays for the app's
installed bundles for one release.
Bearer <token>.Ok