Files
BrowserOS/packages/browseros-agent/apps/server/tests
Dani Akash a228c278c6 feat(agents): background-resilient chat — turns survive tab disconnect (#863)
* feat(agents): decouple chat turn lifecycle from SSE response

Introduce a per-process ActiveTurnRegistry that owns each agent turn's
lifecycle and a ring-buffered event stream, so chat tabs that close,
refresh, or navigate away no longer cancel the in-flight turn. New
endpoints:

  POST   /agents/:id/chat          starts a turn (now returns 409 when
                                   one is already running, with the
                                   active turnId for attaching)
  GET    /agents/:id/chat/active   reports the running turn for a UI
                                   that just mounted
  GET    /agents/:id/chat/stream   subscribes to a turn; supports
                                   Last-Event-ID resume via per-event
                                   seq ids
  POST   /agents/:id/chat/cancel   explicit cancel — fetch abort no
                                   longer affects the underlying turn

The chat hook now captures X-Turn-Id, tracks lastSeq from SSE id lines,
re-attaches on mount when the server still has an active turn, and
routes Stop through the cancel endpoint. The runtime call uses the
registry's per-turn AbortController instead of the HTTP request signal,
which is the core decoupling that lets turns outlive their initiator.

* feat(agents): add ActiveTurnRegistry primitive backing the new chat lifecycle

The previous commit referenced these files in tests and the harness
service but global gitignore swallowed them on the first add.

The registry owns the per-turn ring buffer (drop-oldest, terminal frame
preserved), the per-turn AbortController, and subscriber fan-out used
by /chat/stream resume.
2026-04-29 21:01:06 +05:30
..
2026-04-24 10:41:20 -07:00
2026-04-24 10:41:20 -07:00