Conciseness

The body is lean and assumes competence — the 用/不用 list, 6-step 操作规程, and fill-in template all earn their place — but the epigraph quote and the opening '实事求是' framing line are minor trimmable padding that keeps it just below anchor 5.

Actionability

Highly actionable for an instruction-only skill: concrete steps naming specific sources (git log, blame, source/config/data, run, logs) plus a copy-paste-ready output template; per the scoring notes, absence of code is not penalized when guidance is this concrete.

Workflow Clarity

A clear numbered 6-step sequence with explicit validation gates — the 'unknown' column acts as a stop-gate ('禁止在未知栏非空且关系到结论时下定论'), and the '改判断不改事实' rule plus budget discipline provide feedback loops and a checklist matching anchor 5.

Progressive Disclosure

Well-organized into clear sections (用/不用, 操作规程, 输出模板, 纪律, 交接) with the supplementary source material pushed to a separate file, but the referenced original-texts.md does not exist in the bundle, so the one external reference is a dead link — a minor gap below anchor 5.

Specificity

Names several concrete actions — 'Gather firsthand facts', 'produce a fact / inference / unknown ledger', 'Investigate before judging' — with a distinctive three-column output artifact, but stops short of the multi-verb comprehensive list of anchor 5.

Completeness

Explicitly answers both what (investigate, gather firsthand facts, produce a three-column ledger before any recommendation) and when (concrete trigger phrases plus a 'skip when' clause), matching the anchor for clearly answering both with concrete triggers.

Trigger Term Quality

Includes one clean user-uttered phrase ('the user says "look first"') but most triggers describe Claude's internal state ('context is incomplete', 'evidence is thin', 'answering from impression') rather than natural user utterances, and common synonyms like 'check first' or 'look before you leap' are missing.

Distinctiveness Conflict Risk

The fact/inference/unknown ledger and 'investigate before judging' framing carve a fairly distinct niche with an explicit skip clause, but 'investigation' broadly still overlaps with general research/exploration skills, keeping it just below anchor 5.