Conciseness

The body is lean and imperative with no padding or explanations of known concepts, and it earns most of its tokens (gate boundary, do-not-re-ask rule, expectation-setting example). It falls short of 5 on minor repetition: 'play back the brief/minimum brief... in one pithy note' appears in both the intro section and handoff item 2, and the opening line restates the frontmatter description. Well above anchor 3 since there is no genuinely unnecessary explanation.

Actionability

Concrete guidance exists — the two clarify questions, the copy-paste expectation-setting note, and explicit do/don't boundaries — but key details are missing: 'question mode' is never defined, the skill's core output (the brief playback) has no example or format, and the workflow depends on external artifacts ($index, $critical-overrides, $user-context, its 'preflight script') that are not present in the bundle. This matches anchor 3 (some concrete guidance but incomplete, missing key details) rather than 4, where only minor gaps would remain.

Workflow Clarity

The sequence is clear with explicit checkpoints: 'When both are clear, play back the brief', the hard boundary 'do not implement UI... while the design target or intended user outcome is still missing', a defined done state, and a feedback loop ('If the user provides feedback, incorporate it and course-correct'). It is not 5 because there is no guidance for the failure path (what to do if clarification cannot be obtained) and the relative ordering of the Critical Overrides / User Context sections versus the clarify step is only implied.

Progressive Disclosure

For a sub-50-line skill with well-organized sections and clearly signaled one-level-deep references ($index, $critical-overrides, $user-context), the structure is good and every link is explicit with its purpose stated. It is not 5 because no bundle files exist in the skill and the referenced paths resolve outside it — the critical-overrides reference and the user-context 'preflight script' cannot be verified within the bundle, leaving a minor navigation/organization gap.

Specificity

Names the domain ('design-brief gate', 'product and outcome') and two concrete actions — 'clarify missing product information' and 'play back the brief' — but coverage is not comprehensive; it never says how clarification happens or what the gate produces. Anchor 3 ('names domain and 1-2 concrete actions, but not comprehensive') fits better than 4 because the second sentence largely repeats the first two actions rather than adding new ones.

Completeness

Both parts are explicit: what — 'clarifying the product and outcome... clarify missing product information and play back the brief'; when — 'Use before ideation, image-to-code builds, redesigns, or product UI work'. This mirrors the anchor-5 example structure of a concrete capability statement followed by an explicit 'Use when...' clause with concrete trigger phrases; it is not 4 because the 'when' is already specific and list-based rather than under-specified.

Trigger Term Quality

Relevant keywords exist ('redesigns', 'product UI work', 'ideation') but common natural variations users would actually say — 'design', 'prototype', 'mockup', 'clone', 'build a screen' — are missing, and 'image-to-code' is plugin jargon rather than a user phrase. This matches anchor 3 (some relevant keywords, missing common variations) better than 4, since several very common synonyms are absent.

Distinctiveness Conflict Risk

The 'design-brief gate' framing plus product-UI-scoped triggers give it a mostly distinct niche with only minor overlap risk against general design/ideation or implementation skills. It is not 5 because 'redesigns' and 'product UI work' could plausibly fire a design-implementation skill as well, and not 3 because the gate/clarify-before-building purpose is clearly differentiated from skills that actually produce UI.