Mostly efficient and free of basic-concept padding, but subagent discovery is restated across the Contract, 'Before You Start' step 4, and the dedicated 'For Codex specifically' paragraph, and several Contract bullets overlap the workflow steps.

Provides a copy-paste subagent prompt template, concrete git commands ('git diff --stat <base>...HEAD', 'pnpm test path/to/spec'), an explicit labeled output schema, and a worked example — all directly executable.

Clear sequenced process (numbered 'Before You Start' 1–6 plus a four-step Workflow) with explicit validation checkpoints: 'Block when missing context or proof prevents an honest verdict' and refreshing stale CI/branch heads before judging.

Sections are well-organized and references are clearly signaled one level deep, but the body points to references/reviewer-selection.md and references/reviewing.md while no references/ bundle directory exists, so the navigation path leads to missing files.

Lists multiple concrete actions — 'audit existing code, diffs, branches, or pull requests', 'spawning mandatory concern-specific reviewer subagents', 'synthesizing their evidence into a ship decision', and 'Produces a ship it / needs review / blocked verdict'.

Answers both what (independent multi-reviewer audit synthesizing a ship decision) and when, with an explicit 'Use when triaging PR risk, deciding whether someone else's change is safe to ship, or following up after runtime proof' clause.

Natural user phrases like 'triaging PR risk', 'whether someone else's change is safe to ship', and 'following up after runtime proof' alongside 'diffs, branches, or pull requests' give good coverage of terms users would actually say.

Clear niche of mandatory concern-specific reviewer subagents producing a ship verdict, with distinct triggers and an explicit 'Do not use to self-check a change you just authored' exclusion that reduces conflict risk.