Conciseness

The body is dense, imperative instruction with zero concept explanation ('Lead each section with the recommended answer so the user can accept it in a word', 'Never create AGENTS.md when CLAUDE.md already exists'). Every line is a decision rule or a concrete check; conditional branches are stated only where they branch. Matches anchor 5 — assumes Claude's competence and every token earns its place; anchor 4 would require trimmable over-explanation, of which only the user-facing Section A explainer (justified as copy shown to the user) comes close.

Actionability

Concrete throughout: exact commands ('git remote -v'), exact paths ('docs/agents/issue-tracker.md', '.scratch/<feature>/'), exact label strings ('needs-triage', 'ready-for-agent', ...), an explicit file-selection decision tree ('If CLAUDE.md exists, edit it. Else if AGENTS.md exists, edit it'), and a copy-ready markdown template for the '## Agent skills' block. For an instruction-only skill this is fully executable guidance — anchor 5; not anchor 4, which expects minor gaps, and the placeholders ('[one-line summary of where issues are tracked]') are correctly generative rather than pseudocode.

Workflow Clarity

A clear five-phase sequence (Explore → Present findings and ask → Confirm and edit → Write → Done) with an explicit validation checkpoint: 'Show the user a draft... Let them edit before writing' before any file is touched, plus in-place-update and don't-overwrite rules as error-avoidance loops. The operation is interactive and non-destructive, so the destructive/batch cap does not apply; anchor 5's explicit checkpoints and feedback loops are present, while anchor 4 would require missing validation.

Progressive Disclosure

Good structure: five numbered sections, a clear overview, and five one-level-deep, well-signaled template references each with a one-line purpose ('[issue-tracker-github.md](./issue-tracker-github.md) — GitHub issue tracker'). It falls short of anchor 5 because the referenced seed templates do not exist alongside SKILL.md in this copy — the links cannot be verified as real files — and the templates sit at the skill root rather than under references/, which is a minor organization gap; it is clearly above anchor 3's inlined-content problem since nothing bulky is inlined.

Specificity

Quotes: 'set up its issue tracker, triage label vocabulary, and domain doc layout' — several concrete, named configuration targets matching the skill's full scope. Falls short of anchor 5 only because the leading verb 'Configure this repo for the engineering skills' is broad and the description omits the concrete artifacts written (docs/agents/*.md, the CLAUDE.md/AGENTS.md block); it is clearly above anchor 3, which expects just 1-2 actions with incomplete coverage.

Completeness

The 'what' is explicit ('set up its issue tracker, triage label vocabulary, and domain doc layout') and the 'when' is explicit and concrete ('Run once before first use of the other engineering skills'). Both are answered with concrete trigger phrasing, matching the anchor 5 example's structure; anchor 4's weaker, more generic 'when' clause does not fit.

Trigger Term Quality

Natural terms users would say are present: 'Configure', 'set up', 'issue tracker', 'triage label', 'domain doc'. Not anchor 5 because common synonyms and variations ('initialize', 'scaffold', 'onboarding') are absent; not anchor 3 because the keyword set is specific to this skill rather than generic file/document language.

Distinctiveness Conflict Risk

'Run once before first use of the other engineering skills' gives a distinct, ordered niche, but 'Configure this repo for the engineering skills' presupposes knowledge of which skill family is meant, leaving minor overlap with generic repo-setup/config skills. Anchor 5's fully self-contained distinct triggers are not quite met; anchor 3's broad overlap risk understates it.