Coordinator threads in Platform Chat and the Framework
In the UI: with Chat threads turned on in Settings → Features,
Platform Chat can hand work to threads, which are child sessions. A Threads
button lists conversations and ongoing work, and background work shows its
progress, questions and failures. Custom agents use the same pattern through
the coordination capability.
In code: the Framework’s everruns::coordination capability runs threads
as sessions of the same engine. Threads wake the coordinator with automatic
updates, and coordination::threads returns each thread’s status, such as
NeedsYou, Working or ReadyForReview.
See Chat and threads, Coordination and #4372, #4377.