Files
codex/codex-rs/protocol
Shijie Rao 7f135e1314 Make Ultra reasoning fallback model-aware (#41206)
## What changed

- Add an optional `multi_agent_reasoning_effort` field to model metadata.
- When `Ultra` is selected, use a supported catalog override when present. Otherwise, prefer `max`, then the highest supported non-`ultra` effort, and finally `medium` when the model has no reasoning levels.
- Preserve existing request behavior for other reasoning efforts, including mapping `persistent` to `disabled`.

## Testing

- Cover configured, missing, unsupported, and empty-catalog fallbacks for both parent and spawned-agent requests.

GitOrigin-RevId: b7ef576f32e0ea95ef38bf95c25789ed16aae94e
2026-08-27 21:03:09 +00:00
..

codex-protocol

This crate defines the "types" for the protocol used by Codex CLI, which includes both "internal types" for communication between codex-core and codex-tui, as well as "external types" used with codex app-server.

This crate should have minimal dependencies.

Ideally, we should avoid "material business logic" in this crate, as we can always introduce Ext-style traits to add functionality to types in other crates.