Conciseness

The body is lean and instructional throughout — crisp rules ("Descriptive only: do not judge, do not recommend, do not assign severity") and a tight 4-step procedure with no padding or explanation of concepts Claude already knows. It is not 5 because the "When to use" and "Example prompt that should trigger this skill" sections substantially duplicate the frontmatter description, and not 3 because there is no unnecessary explanation beyond that redundancy.

Actionability

Concrete input paths (ux_ui_map/requests/{page}.json, screenshots/{page}/desktop|tablet|mobile.png), a specified output (ux_ui_map/pages/{page}.md), and an enumerated output structure (Overview, ASCII layout diagram, Screenshot table, Regions) make the guidance mostly executable. It is not 5 because step 3's "using the template at ux_ui_map/pages/{page}.md" confusingly names the output file as a template (no template file exists), and a short example doc snippet would remove ambiguity.

Workflow Clarity

The procedure is a clearly sequenced 4-step workflow with an input checkpoint ("Load the request JSON to confirm route and expected screenshot paths"), an inspection order (desktop first, then tablet/mobile), and a hard stop ("Stop after writing this one page"). It is not 5 because there are no error-recovery steps (e.g. what to do if a screenshot or request JSON is missing) and no post-write verification, and not 3 because one explicit checkpoint and an unambiguous sequence are present.

Progressive Disclosure

The skill is ~35 lines with no bundle files (no references/, scripts/, or assets/ directories exist) and no external references to verify; all content fits inline in well-organized, clearly headed sections (When to use, Inputs, Output, Rules, Procedure, Example). Per the rubric's simple-skill guideline, a sub-50-line skill with no need for external references scores 5 with well-organized sections alone.

Specificity

"Analyze exactly one captured UI page (from ux_ui_map screenshots + request JSON) and immediately write/update ux_ui_map/pages/{page}.md in neutral descriptive language" names concrete inputs, actions, output artifact, and scope constraints. It sits between anchor 3 (1-2 concrete actions) and anchor 4 (several specific actions, minor gaps) — the actions are tightly specified but coverage is incomplete (what the analysis examines, e.g. layout/responsive changes, is omitted), so 4 rather than 3 because the precision exceeds anchor 3's generic examples, and not 5 because only two verbs are covered.

Completeness

The description explicitly answers both "what" (analyze one captured UI page and write/update the page doc in neutral descriptive language) and "when" (an explicit "Use when" clause with trigger phrases). It falls short of anchor 5 because the trigger phrases are unevenly concrete — "avoid memory/context saturation" is not a phrase a user would naturally say — matching anchor 4 (both present, 'when' could be more specific).

Trigger Term Quality

"Use when asked to analyze screenshots, rewrite corresponding analysis immediately, or avoid memory/context saturation" includes one natural phrase ("analyze screenshots") but "rewrite corresponding analysis immediately" is stilted phrasing users would not say verbatim and "avoid memory/context saturation" is agent-internal jargon. This matches anchor 3 (some relevant keywords but missing common variations such as "describe the page", "update the page doc", "UI screenshots") — not 4 because keyword coverage is not good enough, not 2 because the screenshots trigger is genuinely natural.

Distinctiveness Conflict Risk

"Analyze exactly one captured UI page (from ux_ui_map screenshots + request JSON)" carves out a clear niche tied to a specific repo workflow, making it mostly distinct with minimal conflict risk. It is not 5 because it could plausibly overlap with a closely related sibling skill that analyzes multiple UI pages, and not 3 because the single-page scoping and ux_ui_map paths are specific enough to disambiguate.