felixxia-oai 56a8470aa0 Record reasoning effort changes in conversation history behind a flag (#43110) ...

## What changed

Add the disabled-by-default `reasoning_effort_override` feature for OpenAI models with `use_responses_lite` enabled. Append a trusted `configuration_update` after accepted input when no effort is established in surviving history or the resolved effort changes. Preserve the existing history prefix and continue sending the request-level reasoning effort.

Share effort normalization through `ModelInfo::resolve_reasoning_effort` so requests and history updates resolve `ultra` consistently and translate `persistent` to `disabled`. Exclude other custom effort values from history updates, and compare only against harness-authored configuration items.

## Testing

Add integration coverage for effort transitions, deduplication, history prefix and cache-key preservation, alias normalization, and feature/provider/model gating. Add unit coverage for model-specific `ultra` resolution, fallbacks, and `persistent` translation.

GitOrigin-RevId: c3fe7050058076454d8ea20054a618bca9d48c7c

2026-09-05 21:56:43 +00:00

..

src

Record reasoning effort changes in conversation history behind a flag (#43110)

2026-09-05 21:56:43 +00:00

BUILD.bazel

build: run buildifier from just fmt (#28125)

2026-06-13 21:43:39 -07:00

Cargo.toml

Refactor config types into a separate crate (#16962)

2026-04-07 00:32:41 +00:00