Conciseness

The body is lean and well organized at ~34 lines with no filler explanations of concepts Claude already knows. Minor trimming is possible: the intro sentence overlaps the Quick Reference bullets, and Quick Reference's fourth bullet ('Do not change existing URLs just to remove stop words...') duplicates the Fix and Check guidance — anchor 4, not 5.

Actionability

The Check section gives a concrete before/after example ('/blog/the-best-ways-to-improve-your-seo' could be '/blog/best-ways-improve-seo') and the Fix names a specific mechanism ('configure the CMS or slug generator to strip common stop words automatically'), with clear scope rules (new pages vs. established pages). Minor gaps remain — no inline stop-word list or detection pattern — so anchor 4 rather than the fully copy-paste-ready anchor 5.

Workflow Clarity

This is a simple, single-purpose skill under 50 lines whose single action (flag stop words in slugs on new pages) is unambiguous, with explicit scope guidance and a verification mention in Code Review ('describe how to verify the final page output'). The destructive/batch validation cap does not apply — the rule explicitly advises against changing established URLs — so the simple-skill exception yields 5.

Progressive Disclosure

The body is a concise, well-sectioned overview (Quick Reference, Check, Fix, Explain, Code Review) that defers full details, code examples, and framework-specific guidance to a single, clearly signaled, one-level-deep reference ('see references/rule.md'), which exists and contains no nested skill references. This matches the under-50-line well-organized exception for a 5.

Specificity

The description names a domain ('building a slug naming convention', 'creating new content pages', 'redirect risk') but never states a concrete action the skill performs (e.g., removing stop words from URL slugs). It matches 'names the domain but actions are minimal or generic'; not score 1 because real domain terms are present, not 3 because no capability is actually described.

Completeness

Explicit 'Use when...' trigger clauses are present ('Use when applies primarily when creating new content pages... Use when building a slug naming convention'), but the 'what' is never stated — nothing says the skill checks or removes stop words from URL slugs. This matches anchor 2 ('only when is present without what'); it cannot be 3 because the what is only faintly implied, not clear.

Trigger Term Quality

Some relevant keywords appear ('new content pages', 'slug naming convention', 'redirect', 'indexed pages'), but the primary natural phrases a user would say ('stop words', 'URL', 'URLs', 'SEO', 'slugs') are entirely absent. This fits 'some relevant keywords but missing common variations or synonyms'; not 2 because more than one specific, natural domain keyword is present.

Distinctiveness Conflict Risk

'Building a slug naming convention' and 'new content pages' are somewhat specific, but the missing 'what' makes it likely to overlap with other URL/SEO/slug-related skills. It fits 'somewhat specific but could still overlap with similar skills'; not 4 because the trigger guidance is not concrete enough to cleanly separate it.