Conciseness

The body is efficient: ten principles each stated in 1–2 sentences with no padding and no explanation of concepts Claude already knows; detail is correctly deferred to references. Minor trimming targets keep it from anchor 5 — the boilerplate closing section 'This skill is applicable to execute the workflow or actions described in the overview' earns nothing, and the attribution footer plus 'Related Skills' cross-listing add tokens with marginal value.

Actionability

The guidance is concrete and executable for an instruction-only skill: 'Button labels should be specific verbs ("Delete", "Save"), not "OK"', 'Destructive button style (red text)', 'On action sheets, cancel appears at the bottom, separated', plus a defined four-part output format and a question checklist. It is not anchor 5 because there is no worked example of a complete recommendation (e.g., a sample scenario mapped to a chosen component and alert text), leaving minor gaps in covering common cases.

Workflow Clarity

A workflow exists in pieces — 'Check for .claude/apple-design-context.md before asking questions', 'Questions to Ask', 'Reference Index', 'Output Format' — but it is never sequenced into an explicit ordered process (ask first or consult references first?), and there are no validation checkpoints (e.g., verifying a recommendation against the relevant reference before answering). This matches anchor 3: sequence present but implicit, checkpoints missing. No destructive/batch cap applies since the skill is advisory.

Progressive Disclosure

The body is a lean overview with a well-signaled reference index table ('[alerts.md](references/alerts.md)' etc.) giving topic and key content for each of five references; all five files exist, are one level deep, and contain no nested references. This matches anchor 5: clear overview, well-signaled one-level-deep references, content appropriately split, easy navigation.

Specificity

The description names the domain ('Apple HIG guidance for presentation components') and enumerates five concrete component categories ('alerts, action sheets, popovers, sheets, and digit entry views'), giving clear scope. However, it states no concrete actions — only the generic noun 'guidance' — so it does not reach anchor 4's 'several specific actions', while the five named components lift it above anchor 2's minimal/generic coverage.

Completeness

The 'what' is clear (HIG guidance for the five listed presentation components), but there is no 'Use when...' clause or equivalent trigger guidance anywhere in the description — the 'when' is entirely absent, which per the judging guidelines caps completeness at 3. This matches anchor 3 ('clear what but when missing or only weakly implied') and is not anchor 4, which requires both present.

Trigger Term Quality

Natural terms users would say are present: 'alerts', 'action sheets', 'popovers', 'sheets', 'digit entry views', 'Apple HIG'. Common variations a user might say are missing — 'dialog', 'modal', 'prompt', 'confirmation dialog', 'PIN entry' — so it stops short of anchor 5's comprehensive synonym coverage, but coverage is clearly better than anchor 3's partial keyword set.

Distinctiveness Conflict Risk

The description carves out a clear niche with distinct component-name triggers (alerts, action sheets, popovers, sheets, digit entry), largely matching anchor 5. It scores 4 rather than 5 because the broad phrase 'Apple HIG guidance' overlaps with sibling HIG skills (modality patterns, menus, controls) that cover adjacent territory, leaving minor overlap risk with closely related skills — exactly anchor 4.