Short 2–4 line sections with no padding and no explanation of concepts Claude already knows (GitHub issues, Hugo modules, URLs) match the score-3 "lean and efficient; assumes Claude's competence" anchor rather than the score-2 "could be tightened" bar.

Provides a copy-paste-ready command ("gh issue view <number> --repo docker/docs --json ..."), exact directory paths ("_vendor/", "data/cli/", "content/reference/cli/", "content/includes/"), and a concrete model finding ("In `compose/networking.md`, the 'Custom networks' section, remove the note about `driver_opts`"). The remaining prose steps are appropriate for an instruction-only research skill, which the rubric does not penalize when guidance is actionable, keeping it above the score-2 "pseudocode / missing key details" anchor.

Seven numbered sections are clearly sequenced with explicit validation checkpoints — "confirm it contains the reported problem" (step 2), "Before planning any edit, verify the file is editable locally" (step 3), and "Do not plan a fix based on an unverified claim" / "report it as a blocker" (step 5) — matching the score-3 "clear sequence with explicit validation steps" anchor rather than score-2's implicit checkpoints.

A single well-organized file with clear section headings and one clearly-signaled one-level-deep external reference ("See the vendored content table in CLAUDE.md"); no nested/deep references and no inappropriately inline content, so it clears the score-3 bar for well-organized content rather than the score-2 "could be better organized / unsignaled references" anchor.

"locate affected files, understand the problem, identify what to change" lists multiple concrete actions, matching the score-3 anchor for several specific actions rather than the score-2 "some actions" anchor.

It states what the skill does ("Research a documentation topic — locate affected files...") and when to use it ("Use when investigating an issue..." plus explicit triggers), satisfying both halves required for score 3; it is not capped at 2 because the 'when' is explicit, not implied.

The explicit "Triggers on:" clause supplies six natural user utterances ("research issue 1234", "where is X documented", "is our docs page about Y accurate"), giving good coverage of terms a user would actually say, beyond the score-2 "some relevant keywords" bar.

The docs-research niche and issue-number/docs-page triggers ("research issue 1234", "where is X documented") form a distinct niche unlikely to fire for unrelated skills, matching the score-3 "clear niche with distinct triggers" anchor.