Conciseness

Quotes: the intro 'the screen reader remains silent, leaving the user with no idea where their focus is' and the later 'Explain why focusable elements inside aria-hidden containers cause confusion for keyboard and screen reader users' restate the same rationale twice, and the 'Code Review' section largely reiterates Check/Explain. Not 4 because this duplication plus the template filler ('that affect Remove focusable elements from aria-hidden containers') accounts for roughly a third of the body; not 2 because there is no library-tutorial-style padding and the remaining lines are tight.

Actionability

Quotes: 'Scan `aria-hidden="true"` containers for focusable elements like links, buttons, or inputs.' and 'Add `tabindex="-1"` to focusable children inside `aria-hidden` containers or use the `inert` attribute.' — concrete scan targets and a specific, executable fix for an instruction-only skill. Not 5 because no example markup or selector is inline (it lives in references/rule.md) and the default-focusable element list is incomplete; not 3 because the given guidance has specific attribute values and named element types, not pseudocode.

Workflow Clarity

Quotes: 'Scan `aria-hidden="true"` containers...' (Check), 'Add `tabindex="-1"`...' (Fix), and 'note how to verify the fix with browser accessibility tooling or assistive tech' (verification hint) — a coherent check → fix → verify sequence for a simple single-rule skill. Not 5 because the verification pointer is vague (no named tool or step, and the detailed Verification section is only in the reference), and the 'Explain' section sits oddly in the sequence; not 3 because the steps are unambiguous and ordered with a verification cue present.

Progressive Disclosure

Quotes: 'For full implementation details, code examples, and framework-specific guidance, see `references/rule.md`.' — the body is a lean overview with a single, clearly signaled, one-level-deep reference that exists in the bundle and matches what it promises (code examples, rationale, verification details). This matches the 5 anchor: clear overview, well-signaled reference, appropriate content split; no nesting or buried references.

Specificity

Quotes: 'Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.' — several concrete, distinct inspection actions are named. Not 5 because the core remediation capability (adding tabindex="-1" or inert) is absent, leaving a minor gap in coverage; not 3 because the action list goes well beyond 1-2 actions and is domain-specific.

Completeness

Quotes: 'Use when reviewing rendered HTML, interactive components, or design-system patterns related to Remove focusable elements from aria-hidden containers' (explicit when with concrete triggers) and 'Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output' (explicit what). Both what and when are clearly and explicitly present with concrete trigger phrases, matching the 5 anchor; the awkward title-splice is a style issue, not a completeness gap.

Trigger Term Quality

Quotes: 'rendered HTML, interactive components, or design-system patterns' and 'aria-hidden containers... keyboard behavior, focus flow... screen-reader output' — good natural keyword coverage for this niche. Not 5 because common variations a user might say — 'accessibility', 'a11y', 'tab order', 'inert', 'focusable' — are missing; not 3 because it goes beyond a couple of generic terms with multiple relevant, naturally-spoken phrases.

Distinctiveness Conflict Risk

Quotes: 'related to Remove focusable elements from aria-hidden containers' — a clear niche (aria-hidden/focus interaction) with distinct triggers. Not 5 because the broad opening 'reviewing rendered HTML, interactive components, or design-system patterns' is a shared template likely used by sibling accessibility rule skills, creating minor overlap risk with closely related skills (e.g., focus-management); not 3 because the aria-hidden/focus specificity pins it to one rule.