Conciseness

The body is dense with host-specific facts Claude cannot know (tool names, projectDir semantics, outputTemplate, global entrypoint behavior) and contains no general-concept padding. It is not 5 because the "do not start scripts/start-canvas.sh" warning appears in both Workflow step 1 and Constraints, and the global-entrypoint paragraph could be tightened.

Actionability

Gives the exact tool name and its full host form ("mcp__cowart_mcp__render_cowart_canvas_widget"), a copy-paste-ready JSON argument {"projectDir": "/absolute/path/to/user/codex-project"}, concrete storage paths, and a specific failure-recovery path. Fully executable guidance for an instruction-only skill.

Workflow Clarity

Three numbered steps with an explicit validation checkpoint ("Confirm the widget opens for the user") and a feedback loop for error recovery (tool not visible → discovery → retry within the same task → only then suggest a new task). The operation is non-destructive, so no validation cap applies.

Progressive Disclosure

The skill is under 50 lines, needs no external reference files, and is organized into clear Workflow and Constraints sections, which merits a 5 per the simple-skill guideline. The mentioned scripts/start-canvas.sh is absent from the bundle but is explicitly designated a do-not-use local-development fallback, so it does not create buried navigation.

Specificity

"Open, reopen, or explicitly refresh the native Cowart canvas" lists multiple concrete actions that comprehensively cover this single-purpose skill's scope. It is not 4 because there are no gaps in the action coverage for what the skill does.

Completeness

Explicitly answers what ("Open, reopen, or explicitly refresh the native Cowart canvas") and when ("when the user asks to see it, or when a bare @Cowart invocation has no other requested workflow") with concrete trigger phrases. Both anchors for 4 are exceeded since neither half is vague or implicit.

Trigger Term Quality

Natural trigger terms are present — "open", "reopen", "refresh", "asks to see it", "@Cowart" — giving good keyword coverage. It is not 5 because common synonyms such as "show" or "display the canvas" are missing, and not 3 because coverage goes beyond partial.

Distinctiveness Conflict Risk

"native Cowart canvas" and "@Cowart" form a clear niche with distinct, product-specific triggers unlikely to fire for any other skill. Not 4 because overlap risk with related skills is minimal, not lower because the triggers are unambiguous.