Conciseness

Dense and well-structured with no explanations of concepts Claude already knows, but contains minor redundancy: the "do not add a ## Colors section" rule is stated three times (Step 3 bullets, REQUIRED OUTPUT, validation checklist) and the designing-vizro-layouts pointer is duplicated between Step 2 and the Reference Files table. Anchor 4 (efficient, minor trimmable instances), not 5 due to this repetition and not 3 since there is no padded content.

Actionability

Highly actionable for an instruction-only skill: exact spec file paths, "Copy the template from [assets/...] to spec/..." instructions, a concrete decision flow mapping data shape to interaction pattern, and specific rules (visible=False, show_in_url=True, kpi_card, pie only for 2-5 slices). Minor gaps keep it below anchor 5: "suggest sample data" is vague, and it delegates to external skills (designing-vizro-layouts, wiring-vizro-actions, selecting-vizro-charts) with no inline fallback guidance.

Workflow Clarity

Explicit sequence ("Run Steps 1-3 in order; each step depends on the prior"), a progress-tracking checklist, per-step required outputs gated before proceeding ("save it BEFORE proceeding to Step 2"), per-step validation checklists, and exhaustive partial-context handling including the "just build it" case. Matches anchor 5's clear sequence with explicit validation checkpoints and checklists; not 4 because checkpoints are explicit gates rather than implicit.

Progressive Disclosure

The body is a clear overview with one-level-deep, well-signaled references, all of which exist in the bundle (references/information_architecture.md, references/common_mistakes.md, references/wireframe_templates.md, assets/1_information_architecture.md, assets/2_interaction_ux.md, assets/3_visual_design.md), plus a Reference Files table with a "When to Load" column for navigation. Content is appropriately split with no organization gaps, matching anchor 5.

Specificity

Names the domain (Vizro dashboards) and several concrete actions — "design or plan a dashboard", "Enforces a 3-step workflow (requirements, layout, visualization)" — but is not a comprehensive capability inventory (e.g., no mention of the spec-file outputs). Anchor 4 fits: several specific actions with minor gaps, more than the 1-2 actions of anchor 3 but short of anchor 5's full enumeration.

Completeness

Explicitly answers both: what ("Enforces a 3-step workflow (requirements, layout, visualization) before implementation") and when ("Use this skill first when the user wants to design or plan a dashboard... Activate when the user asks to create, design, or plan a dashboard") with concrete trigger phrases, matching anchor 5 exactly.

Trigger Term Quality

Includes natural phrases users would say — "design or plan a dashboard", "create, design, or plan a dashboard", "Vizro dashboards" — giving good keyword coverage. A few natural synonyms are missing (e.g., "build", "visualize"), so it falls short of anchor 5's comprehensive synonym coverage but exceeds anchor 3's partial coverage.

Distinctiveness Conflict Risk

"especially Vizro dashboards" plus the explicit boundary ("For implementation, use the dashboard-build skill after completing Steps 1-3") carves a mostly distinct niche with routing away from the sibling build skill. Not anchor 5 because bare "design a dashboard" triggers still overlap generic dashboard/visualization skills.