feat(merge): make merge asynchronous via runway#247
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This was referenced Jun 16, 2026
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Rework the merge stage from a synchronous in-process pusher call into a runway round-trip, mirroring the merge-conflict check. The merge controller now builds a full runway MergeRequest from the batch's member requests (one MergeStep per request, in Contains order) and publishes it to the runway-owned merger queue, keyed by the batch id as the correlation id. A new mergesignal controller consumes the MergeResult off merger-signal, transitions the batch to Succeeded/Failed, and fans out to conclude and speculate; a mergesignal DLQ reconciler fails the batch on an unprocessable result. The in-process pusher extension is retired from the orchestrator wiring (left in-tree but unused, like mergechecker); removal is a follow-up. workflow.md and extension-contract.md updated to reflect both the check and the merge crossing into runway over the shared MergeRequest/ MergeResult contract. Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
Rework the merge stage from a synchronous in-process pusher call into a
runway round-trip, mirroring the merge-conflict check. The merge
controller now builds a full runway MergeRequest from the batch's member
requests (one MergeStep per request, in Contains order) and publishes it
to the runway-owned merger queue, keyed by the batch id as the
correlation id. A new mergesignal controller consumes the MergeResult off
merger-signal, transitions the batch to Succeeded/Failed, and fans out to
conclude and speculate; a mergesignal DLQ reconciler fails the batch on
an unprocessable result.
The in-process pusher extension is retired from the orchestrator wiring
(left in-tree but unused, like mergechecker); removal is a follow-up.
workflow.md and extension-contract.md updated to reflect both the check
and the merge crossing into runway over the shared MergeRequest/
MergeResult contract.
Co-authored-by: Cursor cursoragent@cursor.com
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