taohong-oai db14d7508d Report auto-review overhead in turn critical-path analytics (#59260) ...

## What changed

Track Guardian compaction and review turn execution within each tool's auto-review interval, and expose `critical_path_auto_review_overhead_ms` in turn analytics. This measures the portion of `auto_review_ms` outside observed Guardian turn execution; it is a subset, not an additional duration.

Freeze review observations when the review or tool invocation ends. Report unknown overhead as `null`, including when denial reconsideration runs an unobserved follow-up turn.

## Testing

Add coverage for shared compaction and review observations, cached reviews, unfinished reviews, reused tool call IDs, and execution timing with child critical-path capture enabled or disabled. Extend analytics and app-server tests to check the new field.

GitOrigin-RevId: a63dec2a75571a3167c8c3f0c1d21e11e4a8d050

2026-11-03 23:49:01 +00:00

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src

Report auto-review overhead in turn critical-path analytics (#59260)

2026-11-03 23:49:01 +00:00

BUILD.bazel

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Cargo.toml

Capture direct-tool critical paths behind a feature flag (#57201)

2026-10-26 19:19:10 +00:00