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codex/codex-rs/app-server-client/src
Benjamin Carlsson a142c90e26 Handle TUI message submission receipts and preserve uncertain drafts (#59817)
## Why

The TUI's cached active turn can be stale when a cloud message is submitted. A lost reply also leaves delivery uncertain, so automatically resending the draft risks submitting it twice.

## What changed

- Let the cloud server choose whether an Enter submission starts or steers a turn, and apply its receipt to the matching client message ID.
- Keep Tab-queued input waiting until the admitted turn finishes, including before its start notification arrives.
- Restore rejected submissions to the composer. Hold duplicate or unconfirmed submissions out of automatic delivery until history confirms them.
- Reconcile saved drafts and pending steers by client message ID when resuming sessions, and preserve submissions belonging to other turns during interruption recovery.
- Classify cloud preflight failures as invalid parameters so rejected queued input can be restored safely.

## Testing

Add regression coverage for cloud receipt outcomes, queued-input ordering, rejected drafts, lost replies, interruption recovery, and session resume with identical message text but distinct client IDs.

GitOrigin-RevId: ec4eb581e450488434bc4614ec59273d73ffd0a1
2026-11-06 03:51:37 +00:00
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