The body is dense procedural guidance with no padding and no explanations of concepts Claude already knows; every section (boundaries, phases, output contract, rationalizations, red flags, verification) earns its place.

For an instruction-only skill the guidance is highly actionable — an exact four-value label set, three unsupported reasons, an ordered decision tree, an exact three-section output table, and anchoring rules telling Claude precisely what to produce.

Phase 1/2/3 are clearly sequenced with explicit validation checkpoints ('Complete all three steps before triaging ... If a step cannot be completed, report that and stop'), an ordered gate walk with 'stop at the first gate', and a closing verification checklist.

The body is a concise overview that offloads full gate criteria and worked examples to two real, one-level-deep, clearly signaled reference files, summarized in a 'Bundled references' table — textbook progressive disclosure.

The description lists several concrete actions — 'Runs Preflight, Claim Triage, and Validation, splits composite claims into atomic ones, and labels each' — matching the anchor for multiple specific concrete actions.

The 'what' is clearly answered, but there is no explicit 'Use when...' clause in the description field itself — the trigger guidance is split off into when_to_use, which caps completeness at 2 per the rubric guideline.

It names 'README, release notes, install and usage guides' and 'claims ... supported by ... evidence', but the natural user-voice triggers ('audit a README', 'find unsupported statements') live in when_to_use rather than the description, so common variations are missing.

The read-only documentation claim-check niche with explicit 'Runs no commands and writes no fixes' boundaries is highly specific and unlikely to trigger for the wrong skill.