Conciseness

Efficient throughout — exact install/verify commands, a lean summary of the canonical workflow, and dense error/output tables with no padding or explanations of concepts Claude already knows. Minor trims possible: several Error Handling rows duplicate the reference file's troubleshooting, and the Output section is more granular than needed.

Actionability

Mostly executable guidance: exact commands ('npm install react-leaflet@^5 leaflet@^1.9', 'npx tsc --noEmit') and exact paths ('components/MapView.tsx', 'pages/[owner]/[slug].tsx', '/public/data/'). Not 5 because the MapView/Map component code and the gating check ('the dataset check shown in the Instructions') are described rather than shown — the executable detail is deferred to the external canonical workflow file.

Workflow Clarity

Eight clearly sequenced steps with explicit validation checkpoints ('Validate the portal directory', 'Verify with npx tsc --noEmit', 'Fix the first reported error before reporting success') and a symptom→cause→fix error table providing feedback loops for recovery. This matches the top anchor: explicit validation plus error-recovery guidance.

Progressive Disclosure

Verified against the actual bundle: references/reference.md exists, is one level deep, clearly signaled in Resources, and correctly holds the detail (props, SSR rationale, troubleshooting) while the body stays an overview. Not 5 because the most executable content — the full workflow and component code — is delegated to a remote GitHub URL outside the bundle rather than a bundled file.

Specificity

Names several concrete actions ('Render a GeoJSON dataset on an interactive Leaflet map', 'Installs react-leaflet and a Map component') with a precise target (Views section of a showcase), but coverage has minor gaps — the dataset-registration path covered in the body is absent, and 'renders the map' repeats the first clause.

Completeness

Explicitly answers both: what — 'Render a GeoJSON dataset on an interactive Leaflet map... Installs react-leaflet and a Map component'; when — 'Use when a dataset's data is geographic and a map view is needed alongside the showcase's default metadata and download'. The when-clause is explicit and states concrete trigger conditions, matching the top anchor.

Trigger Term Quality

Good natural keywords ('GeoJSON', 'Leaflet', 'map', 'map view', 'geographic', 'dataset') that users would plausibly say. Not 5 because common synonyms and extensions ('.geojson', 'shapefile', 'spatial', 'plot on a map') are missing; not 3 since several natural phrasings are present beyond domain jargon.

Distinctiveness Conflict Risk

A clear niche (GeoJSON + Leaflet + dataset showcase) with distinct triggers, but minor overlap risk with the closely related 'portaljs-add-chart' skill and with generic 'add a map' requests outside the PortalJS context. Not 5 because the ecosystem anchor ('showcase') is jargon rather than a user-spoken trigger.