Conciseness

Efficient, ~110 words of pure directive prose with no explanations of concepts Claude already knows, so it is well above the verbose anchors. Not a 5 because of minor trimmable duplication: "The reader is new to the subject" is restated as "Explain things as if the viewer is new here", and the opening sentence re-derives the frontmatter description.

Actionability

Concrete, specific constraints throughout: audience ("new to the subject and has a minute"), format ("one HTML page"), ratio ("big pictures and little words without withholding key details"), and prose rules ("clear, concise/terse, and avoid jargon"). Per the instruction-only scoring note, absent code is not penalized; it is not a 5 because "use your own taste, avoid lazy design" is non-specific and there is no example layout or skeleton to anchor the design.

Workflow Clarity

A simple, single-purpose skill where the action is unambiguous: "You are making a one-pager: one HTML page to share with teammates", with audience and success criteria stated. The simple-skill guideline allows a 5 for a single unambiguous action, and no destructive or batch operations exist to impose the validation cap.

Progressive Disclosure

The body is under 50 lines, the bundle contains no references/, scripts/, or assets/ directories, and the body references no external files — so nothing needs splitting out. Content is organized into logically ordered short paragraphs (context → visual approach → taste/selectivity → prose rules), satisfying the simple-skill exception for progressive disclosure.

Specificity

Names the artifact concretely ("one HTML page"), the design directive ("big pictures and little words"), and the actions "shares an idea with teammates early" / "recaps work" — but this is one core operation with two use contexts rather than several distinct actions, so it matches "names domain and 1-2 concrete actions, but not comprehensive". It sits above the anchor-2 'names domain only' level because the output and its characteristics are explicitly described.

Completeness

The 'what' is explicit ("Make a one-pager: one HTML page... with big pictures and little words") and the 'when' is explicitly written out through the two purposes ("shares an idea with teammates early, or recaps work for them") — not merely implied, so it is above anchor 3. But there is no "Use when..." phrasing or equivalent explicit trigger clause, so the 'when' could be more explicit, matching anchor 4.

Trigger Term Quality

"one-pager" is exactly the natural phrase a user would say when they need this skill, supported by "recaps work" and "shares an idea with teammates". A few natural terms are missing (e.g., "summary page", "single-page overview", ".html"), which fits "good keyword coverage; a few natural terms missing" rather than the comprehensive synonym coverage of anchor 5.

Distinctiveness Conflict Risk

"one-pager" carves a clear, distinctive niche with its own trigger vocabulary, so it is well above the generic 'works with document files' anchors. Minor overlap risk remains with generic HTML-page building or summarization skills, which keeps it at "mostly distinct; minor overlap risk" rather than the minimal-conflict anchor 5.