Conciseness

The body states conversion rules directly with concrete Mermaid syntax (e.g., `([":data"])`, `jX(( ))`, `zero@{ label: "0", shape: rect }`) and assumes Claude knows Mermaid, so it is efficient. It is below 5 because the fan-out/fan-in section repeats structural patterns and markers like "IMPORTANT"/"MUST" add mild padding, but above 3 since nothing teaches concepts Claude already knows.

Actionability

Rules give copy-paste-ready Mermaid snippets and explicit labeled/unlabeled-edge examples ("x:res -> y → label edge as res"), which is mostly executable guidance. It is not 5 because the "Reference Example" shows only the Neva input with no corresponding Mermaid output, leaving the single most actionable artifact — a complete worked input→output example — missing; it stays above 3 because the rules themselves are concrete and executable rather than pseudocode.

Workflow Clarity

A clear four-step sequence (read → generate per rules → do not look up files → ensure playground-ready output) is present. It is below 5 because step 4 ("Ensure the output is ready to be pasted into the Mermaid playground") is a soft verification rather than an explicit validate-and-fix feedback loop, but above 3 because the sequence is unambiguous and this is a single-purpose conversion (not a destructive/batch operation that would trigger the 3-cap).

Progressive Disclosure

The skill is a single self-contained file with well-organized sections (Instructions, Reference Example) and no nested or buried references, and no bundle files exist to reference. It is below 5 because the body exceeds 50 lines (~85) so the simple-skill 5-exception does not fully apply, but above 3 because structure is clean and all content is appropriately placed in one file.

Specificity

"Convert Neva programs to valid Mermaid flowchart diagrams" names the domain and one concrete action (conversion to flowcharts), but offers only a single action rather than several specific capabilities. It is above 2 (the action is concrete, not minimal/generic) but below 4 (which requires several specific actions).

Completeness

It explicitly answers both "what" ("Convert Neva programs to valid Mermaid flowchart diagrams") and "when" ("Use when asked to visualize Neva code as Mermaid") with a concrete trigger phrase, matching the 5 anchor. It is not 4 because the "when" is explicit and specific, not merely implied.

Trigger Term Quality

Natural terms a user would say are present — "Neva", "Mermaid", "flowchart", "visualize Neva code as Mermaid" — giving good keyword coverage. It is below 5 because there are no synonyms or file extensions (e.g., ".neva") and the term set is narrow, but above 3 because the natural phrasing is well captured.

Distinctiveness Conflict Risk

The Neva-to-Mermaid niche is highly specific with distinct triggers, creating minimal conflict risk with other skills. It clearly matches the 5 anchor ("clear niche with distinct triggers").