liame-oai ec8251c545 Add experimental prediction forks that inherit parent context (#51884) ...

## Why

Prediction forks need to preserve the parent's effective context and request settings to maximize prompt-cache reuse.

## What changed

- Add `experimentalPredictionMode` to `thread/fork` for ephemeral forks of loaded, persisted parents. Reject configuration overrides, `path`, `lastTurnId`, and `beforeTurnId` in this mode.
- Inherit the parent's effective configuration, tools, environments, collaboration settings, disabled plugins, and persisted history.
- Enable `features.reasoning_effort_override` on the fork while preserving the parent's request-effort baseline, including when overrides were disabled on the parent.
- Report the fork's effective model, service tier, and reasoning effort in the response.

## Testing

Add coverage for matching parent and fork requests and prompt-cache keys across legacy and paginated history, invalid fork parameters, and reasoning-effort inheritance. Add a context snapshot for identical parent and fork continuations.

GitOrigin-RevId: 46b41f2ac331562b441dadff1a0a9f926c94880d

2026-10-08 00:09:03 +00:00

..

schema

Add experimental prediction forks that inherit parent context (#51884)

2026-10-08 00:09:03 +00:00

scripts

Generate Python SDK types from repository app-server schemas (#44032)

2026-09-09 03:27:31 +00:00

src

Add experimental prediction forks that inherit parent context (#51884)

2026-10-08 00:09:03 +00:00

BUILD.bazel

Add a cacheable Bazel app-server schema bundle (#42174)

2026-09-02 02:00:18 +00:00

Cargo.toml

Keep credentials out of app-server logs (#39993)

2026-08-21 19:04:32 +00:00