Files
codex/codex-rs/protocol/src
sayan-oai fbd0c0d96c Add direct replies for thread settings updates (#47937)
## Why

Callers need to await acceptance or rejection of thread settings without consuming the thread event stream. Acceptance must precede event delivery because the caller may hold a lock needed by the event consumer.

## What changed

- Add `CodexThread::update_thread_settings` and re-export `ThreadSettingsOverrides` from `core-api`.
- Add an optional reply channel to `Op::ThreadSettings`. Return validation failures as `InvalidRequest` through that channel, retaining error events for callers without a reply channel.
- Reply to successful updates before emitting `ThreadSettingsApplied`, while holding the settings persistence lock through notification.

## Testing

Extend settings constraint coverage to direct replies, including rejection without an error event and successful notification. Verify that acceptance and continuation invalidation precede blocked event delivery, while checkpointing waits for notification.

GitOrigin-RevId: e09b0d3cc4b6750709c173371632f19619e5c250
2026-09-24 20:59:51 +00:00
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