drakezhangandCursor 5e91178e03 Add heartbeat event and daemon browser-liveness reaper ...

Introduce a `system.heartbeat` protocol event and use it as a
liveness signal on the daemon side.

- Track `last_seen` per connected browser, bumped on every inbound
  WS frame (tool response, event, ping/pong, or heartbeat).
- Add a reaper task that drops any browser silent past a 60s window
  and purges its sessions, mirroring the WS disconnect cleanup. This
  releases half-open connections left behind when the OS resumes from
  sleep and kills the service worker without delivering a close frame,
  so the daemon no longer pins a phantom "connected" browser and can
  idle-exit normally.
- Wire the reaper into both the foreground daemon and the test/embed
  entry point, aborting it on shutdown.

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-07-22 12:16:56 +08:00

..

bsk-cli

Add heartbeat event and daemon browser-liveness reaper

2026-07-22 12:16:56 +08:00

bsk-protocol

Add heartbeat event and daemon browser-liveness reaper

2026-07-22 12:16:56 +08:00