ioanbudea-OAI cab328f275 Distinguish Guardian parent-compaction failure reasons (#53393) ...

## Why

The generic `parent_compaction_error` classification metric does not distinguish serialization failures, oversized compactions, and unusable compactions.

## What changed

Record separate `failure_reason` values for each case: `parent_compaction_serialization`, `parent_compaction_oversized`, and `parent_compaction_unusable`.

## Testing

Extend parent-compaction reuse tests to cover unusable checkpoints in parent-context mode and assert specific failure reasons. Verify rejected compactions receive the maximum risk score, provide no cached approval, and do not reuse stale context.

GitOrigin-RevId: 103c4173b2ebbdc33eb71bce7f8ecb56f73055f6

2026-10-12 14:16:27 +00:00

..

src

Distinguish Guardian parent-compaction failure reasons (#53393)

2026-10-12 14:16:27 +00:00

BUILD.bazel

Run Guardian conversation classifiers concurrently and preserve action order (#52061)

2026-10-08 10:42:28 +00:00

Cargo.toml

Run Guardian conversation classifiers concurrently and preserve action order (#52061)

2026-10-08 10:42:28 +00:00