Asyncio tasks created with create_task() but never stored can be
garbage collected mid-execution. Add self._background_tasks set to
hold references, with add_done_callback cleanup. Tracks:
- /background command task
- session-reset memory flush task
- session-resume memory flush task
Cancel all pending tasks in stop().
Update test fixtures that construct GatewayRunner via object.__new__()
to include the new _background_tasks attribute.
Cherry-picked from PR #3167 by memosr. The original PR also deleted
the DM topic auto-skill loading code — that deletion was excluded
from this salvage as it removes a shipped feature (#2598).
Co-authored-by: memosr.eth <96793918+memosr@users.noreply.github.com>
When an agent thread hangs (truly blocked, never checks _interrupt_requested),
/stop now force-cleans _running_agents to unlock the session immediately.
Two changes:
- Early /stop intercept in the running-agent guard: bypasses normal command
dispatch to force-interrupt and unlock the session. Follows the same pattern
as the existing /new intercept.
- Sentinel /stop: force-cleans the sentinel instead of returning 'nothing to
stop yet', so /stop during slow startup actually unlocks the session.
Follow-up improvements over original PR:
- Consolidated duplicate resolve_command imports into single early resolution
- Updated _handle_stop_command to also force-clean for consistency
- Removed 10-minute hard timeout on the executor (would kill legitimate
long-running agent tasks; the /stop force-clean handles recovery)
Cherry-picked from Mibayy's PR #2498.
Co-authored-by: Mibayy <Mibayy@users.noreply.github.com>
Place a sentinel in _running_agents immediately after the "already
running" guard check passes — before any await. Without this, the
numerous await points between the guard (line 1324) and agent
registration (track_agent at line 4790) create a window where a
second message for the same session can bypass the guard and start
a duplicate agent, corrupting the transcript.
The await gap includes: hook emissions, vision enrichment (external
API call), audio transcription (external API call), session hygiene
compression, and the run_in_executor call itself. For messages with
media attachments the window can be several seconds wide.
The sentinel is wrapped in try/finally so it is always cleaned up —
even if the handler raises or takes an early-return path. When the
real AIAgent is created, track_agent() overwrites the sentinel with
the actual instance (preserving interrupt support).
Also handles the edge case where a message arrives while the sentinel
is set but no real agent exists yet: the message is queued via the
adapter's pending-message mechanism instead of attempting to call
interrupt() on the sentinel object.
