Conciseness

The body is short, but the Instructions are generic filler ('Apply relevant best practices and validate outcomes') that assumes nothing beyond what Claude already knows, and the opening paragraph duplicates the frontmatter description verbatim. Mostly efficient with some unnecessary content matches anchor 3 — not 2, since the document is brief rather than padded, and not 4, since the filler bullets are genuinely removable.

Actionability

There is no code, no command, and no specific pattern anywhere in the body; the Instructions only describe ('Clarify goals... Apply relevant best practices') rather than instruct, and the single pointer to concrete material (`resources/implementation-playbook.md`) targets a file that does not exist in the bundle. This matches anchor 1 ('Entirely vague or abstract; no concrete code or commands; only describes rather than instructs').

Workflow Clarity

A rough sequence is implied (clarify goals → apply practices → validate → open the playbook), but no step is concretely defined and validation appears only as an abstract word with no checkpoint or error-recovery loop. Anchor 2 ('Rough sequence present but many gaps; validation absent') fits; not 3 because the steps are too vague to count as properly listed steps.

Progressive Disclosure

The body is sectioned well, but its only reference — `resources/implementation-playbook.md`, where all detailed patterns supposedly live — does not exist in the bundle, so navigation to the detailed content fails entirely. A broken single reference is worse than anchor 3's 'references present but not clearly signaled', landing at anchor 2 ('Minimal structure; ... references are buried').

Specificity

The description names the domain ("Node.js backend applications") but its only action is "building" wrapped in adjectives ("scalable, maintainable, and production-ready"); no concrete actions like designing REST APIs or implementing authentication are stated. This matches anchor 2 ('Names the domain but actions are minimal or generic') — not 3, since no concrete action is listed, and not 1, since the domain and scope are clearly named.

Completeness

The 'what' is present and reasonably clear (guidance for building Node.js backends), but the description contains no 'Use when...' clause or equivalent trigger guidance, capping completeness at 3 per the rubric guideline. Not 4 because 'when' is entirely absent rather than merely less explicit; not 2 because the 'what' is clear, not vague.

Trigger Term Quality

"Node.js", "backend", and "production" are natural trigger terms, but common phrases users would actually say — "REST API", "Express", "API server", "authentication", "microservices" — appear only in the body, not the description. Some relevant keywords with missing common variations matches anchor 3; anchor 4 would require substantially fuller term coverage.

Distinctiveness Conflict Risk

"Node.js backend applications" carves out a niche distinct from unrelated skills, but with no concrete capabilities listed it could overlap with generic web development, API, or database skills. This fits anchor 3 ('Somewhat specific but could still overlap with similar skills') rather than 4's 'minor overlap risk with closely related skills'.