felixxia-oai 47a8bd7321 Avoid duplicate sync reviews in Guardian classifier continuations (#49795) ...

## Why

Retained Guardian classifier conversations already contain previously delivered synchronous reviews. Appending those reviews again repeats evidence and consumes input budget.

## What changed

Track each review completion with a stable identity in host-only history metadata. Filter already delivered reviews before composing and budgeting continuation input, while preserving distinct completions even when their text is identical.

Fresh conversations receive the review evidence again, and shortened messages no longer count as complete delivery. Delivery metadata stays out of model requests.

## Testing

Add coverage for delivering retained reviews once, appending newly completed reviews, restoring evidence after failed streams, and retaining reviews when history lacks complete delivery metadata.

GitOrigin-RevId: b8d58ffdd7d9c484676af707c65fa50020aae73c

2026-10-01 01:13:29 +00:00

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json

Persist explicit user goal edits in model history (#49598)

2026-09-30 11:58:03 +00:00

precomputed

Avoid duplicate sync reviews in Guardian classifier continuations (#49795)

2026-10-01 01:13:29 +00:00

typescript

Persist explicit user goal edits in model history (#49598)

2026-09-30 11:58:03 +00:00