Ahmed Ibrahim 335c7f8eca Gate stable environment tool exposure behind a feature flag (#50962) ...

## What changed

Add the default-off `stable_environment_tools` feature flag. When enabled, advertise environment-backed tools before an executor is ready, keep environment selectors stable as readiness changes, and include the `shell` and `login` parameters. Execution still requires a usable environment and its policy.

When disabled, expose environment-backed tools only when a usable environment exists, derive selectors from usable environments, and condition shell parameters on the execution configuration. Restore tool-specific unavailable-environment errors and skip the environment readiness check for `write_stdin`.

## Testing

Parameterize the empty-environment tool availability test for both flag states, check that commands require a ready transport by default, and explicitly opt tests that rely on stable tool exposure into the feature.

GitOrigin-RevId: 68c6240fb3adf85d7f9b407804d4823c515abfdc

2026-10-04 21:08:31 +00:00

..

src

Gate stable environment tool exposure behind a feature flag (#50962)

2026-10-04 21:08:31 +00:00

BUILD.bazel

build: run buildifier from just fmt (#28125)

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

Cargo.toml

Support remote agent message boards in multi-agent sessions (#49267)

2026-09-29 13:52:04 +00:00