Files
codex/codex-rs
Eric Traut 0e9589ffae Let the app server resolve implicit model settings for CLI forks (#43355)
## Why

Client defaults can override the fork destination's model and reasoning effort or trigger a migration prompt for a stale model.

## What changed

- Omit implicit model and reasoning effort overrides during CLI fork startup, while preserving explicit launch settings.
- Skip the model migration prompt and service tier inference when the fork's model is left for the server to resolve.
- Initialize unspecified reasoning effort from the forked session's response.

## Testing

Add a startup regression test that changes server defaults after bootstrap and verifies that `thread/fork` proceeds without a migration prompt, model or reasoning effort overrides, an inferred service tier, or a `config/read` request.

GitOrigin-RevId: 858f0fe3c72b90bdcaf31b400144d37af5bc6ed7
2026-09-07 04:42:28 +00:00
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2026-07-29 13:53:15 +00:00
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2026-07-29 13:53:15 +00:00
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