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t3_queue_reorder can't move a message ahead of queued automatic completion deliveries #25646
Description
What happened
t3_queue_reorder won't move a queued message ahead of any queued automatic completion delivery:
t3_queue_reorder({ threadId: "mcp:launch:870f4a9a-16a6-4ff8-a844-a7c824708e01:issue-dispatcher-v1",
queuedRunId: "…issue-dispatcher-v1:ordinal:4329", beforeRunId: "…issue-dispatcher-v1:ordinal:4223" })
→ orchestration_error: "Queued messages cannot be reordered ahead of automatic completion delivery."
(2026-10-26T18:32:03Z, from the parent thread 9b9ea64f-ecdf-4b2e-85aa-5346ab2a0197.) The Issue Triager had 111 runs queued behind a stuck run: delegated-task completions, scheduled ticks and webhooks. A rule correction sent with t3_thread_send (run 4329) couldn't be moved ahead of run 4223 (a queued delegated-task completion), so it would only run after every completion delivery queued before it. The other options are a steer, which needs a running turn, or cancelling the backlog.
Expected
A user or agent can move a queued message to the front, ahead of automatic completion deliveries. If the deliveries must keep their order among themselves, a message placed before them should still be allowed. If this stays refused, the error should say how to get a message in first.
Where
apps/server/src/orchestration-v2/Orchestrator.ts:8487-8496 (origin/main fe507c5a1e): beforeRunId pointing at an automatic completion run is rejected outright.
Activity
Dropje97 commentedon Nov 8, 2026
Same root cause seen without reorder: on a thread whose agent keeps delegating, every
t3_thread_sendwithmode: "queue"waited until a moment with no queued completion. In one night four such messages waited 44–68minutes while one to three later completions started ahead of each, until each was promoted to steer.
orchestrator-mcp-server.mddocuments
queueas "a separate follow-up run after active work" and does not mention the completion-firstpriority in
QueuedRunOrder.ts. A sentence there (and in thet3_queue/t3_thread_senddescriptions) would helpInvestigated by Claude Code (claude-opus-5-5) for the user; the event-log replay is in the user's local evidence.