Conciseness

The body is lean and well-sectioned (Quick Reference, Check, Fix, Explain, Code Review) with almost no padding; the intro sentence ("Standalone <dt> or <dd> elements lose their semantic meaning...") and the meta-directive "Explain" section restate things Claude already knows and could be trimmed. Efficient with only minor over-explanation, matching the score-4 anchor rather than the every-token-earns-its-place anchor at 5.

Actionability

Concrete, executable instructions: "Locate any <dt> or <dd> elements that are not children of a <dl> element" and "Wrap orphaned <dt> and <dd> elements in a parent <dl> container", with runnable code examples in references/rule.md. Not 5 because the body gives no concrete locating mechanism (e.g., a grep pattern or the axe rule id) and defers all code to the reference file.

Workflow Clarity

For this simple single-purpose skill (body under 50 lines, one unambiguous action), the Check → Fix → Explain → Code Review sequence is clear and well-organized, with verification guidance ("note how to verify the fix with browser accessibility tooling or assistive tech") and a dedicated Verification section in the reference file. The simple-skill exception applies; this is not a destructive or batch operation, so no cap applies.

Progressive Disclosure

The body is a concise overview and appropriately pushes implementation details, code examples, and verification to a single well-signaled, one-level-deep reference: "For full implementation details, code examples, and framework-specific guidance, see references/rule.md" — and that file actually exists with exactly that content. Clear overview, appropriate split, easy navigation.

Specificity

Lists several concrete actions — "Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output" — but never states the core corrective action (wrapping dt/dd in a dl), leaving minor gaps in coverage. It is above score 3 because more than 1-2 specific actions are named, but below 5 because the skill's actual outcome is absent.

Completeness

Explicitly answers both: what ("Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output") and when ("Use when reviewing rendered HTML, interactive components, or design-system patterns related to Wrap definition items in a definition list"). Both are explicit with concrete trigger phrases, matching the top anchor rather than the score-4 anchor where the when-clause could be more specific.

Trigger Term Quality

Includes relevant keywords like "rendered HTML", "definition list", and "definition items", but misses the most natural synonyms users would say: the element names dl/dt/dd, "description list", or "glossary". It matches the anchor for some relevant keywords missing common variations rather than the good-coverage anchor at 4.

Distinctiveness Conflict Risk

The niche is somewhat specific ("definition items in a definition list") but the broad opening — "reviewing rendered HTML, interactive components, or design-system patterns" — and the generic inspection actions would match nearly any frontend accessibility review skill, creating overlap risk with siblings. Not 4, because the distinguishing definition-list phrase is buried at the end rather than leading the description.