olliem-oai 846a16852f Improve Guardian v2 risk classification (#39264) ...

## What changed

- Replace the minimal default classifier prompt with predictive security-review guidance covering authorization, action risk, untrusted evidence, and browser or computer use.
- Trigger full Guardian review at an `action_risk` score of `0.5` or higher for the new default prompt, while retaining the `0.8` calibration for custom and model-provided prompts unless they specify a threshold.
- Render security policy configuration into prompt templates before enforcing the classifier instruction token limit. Prompts without the policy placeholder retain the existing append-and-truncate behavior.

## Testing

- Cover default, custom, and model-provided prompt thresholds and precedence.
- Verify policy substitution, truncation, sampling requests, and full review at the threshold boundary.

GitOrigin-RevId: 7aad9e2d8c9fbea453dc52147a3d0a46bf191aec

2026-08-18 19:12:30 +00:00

..

common

Source Guardian v2 defaults from the model catalog (#38990)

2026-08-17 11:44:56 +00:00

suite

Improve Guardian v2 risk classification (#39264)

2026-08-18 19:12:30 +00:00

all.rs

[codex] Use expect in integration tests (#28441)

2026-06-15 21:53:47 -07:00