beautiful-mermaid

Render Mermaid diagrams to SVG or ASCII/Unicode with beautiful-mermaid (Node/Bun/Deno/browser, no DOM). Use when you need Mermaid render without DOM.

Quality

83%

Does it follow best practices?

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Securityby

Passed

No findings from the security scan

Quality

Content

100%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The content is exemplary: concise, fully executable, and well-organized for a simple single-purpose skill. It assumes Claude's competence and provides everything needed to act immediately.

Dimension	Reasoning	Score
Conciseness	The body is lean and efficient with no padding or explanation of concepts Claude already knows; every section (Purpose, When, Install, API, opts, themes, Output) earns its place, matching the 5-anchor for a lean, competence-assuming skill.	5 / 5
Actionability	Provides a fully executable, copy-paste-ready TS example with real imports and both SVG and ASCII usage, plus concrete API signatures and option defaults covering the common cases, matching the 5-anchor.	5 / 5
Workflow Clarity	This is a simple single-purpose skill (render Mermaid) with an unambiguous single action and no destructive/batch operations, so the simple-skill exception applies and workflow clarity is fully satisfied; not penalized because no validation checkpoints are needed here.	5 / 5
Progressive Disclosure	The body is well under 50 lines, has no need for external references (none provided), and is organized into clear labeled sections, satisfying the guideline that short skills with no external-reference needs can score 5 on well-organized structure alone.	5 / 5
	Total	20 / 20 Passed

Description

66%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description clearly states what the skill does and gives a usable trigger, occupying a distinct niche. It is slightly held back by limited action variety and trigger phrasing that could be more natural and comprehensive.

Suggestions

Expand the action list beyond the two output formats (e.g. mention theming/styling) to lift specificity toward 4-5.

Add more natural trigger phrasing and synonyms users actually say, e.g. "Use when the user asks to render a Mermaid diagram, flowchart, or sequence diagram to SVG or terminal output without a browser/DOM."

Dimension	Reasoning	Score
Specificity	Names the domain (Mermaid diagrams) and two concrete actions ("to SVG or ASCII/Unicode"), matching the anchor for 1-2 concrete actions without comprehensive coverage; not a 4 because only two output formats are listed with no further action variety.	3 / 5
Completeness	Explicitly answers both what ("Render Mermaid diagrams to SVG or ASCII/Unicode") and when ("Use when you need Mermaid render without DOM"), matching the 4-anchor where both are present but the when could be more specific; not a 5 because the trigger phrase is narrow and somewhat awkwardly worded.	4 / 5
Trigger Term Quality	Includes relevant keywords ("Mermaid diagrams", "SVG", "ASCII/Unicode") but misses common variations/synonyms users might say (e.g. "flowchart", "diagram", file-format mentions); the phrase "Mermaid render" is also slightly unnatural, keeping it at 3 rather than 4.	3 / 5
Distinctiveness Conflict Risk	Targets a clear niche (Mermaid rendering without DOM) with distinct, narrow triggers and minimal overlap risk with other skills; fits the 5-anchor for a clear niche with distinct triggers.	5 / 5
	Total	15 / 20 Passed

Validation

100%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: marchatton/agent-skills
Path: .agents/skills/00-utilities/beautiful-mermaid/SKILL.md
Commit: a0eadb2

Reviewed: 3 days ago

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