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mermaid-designer

Convert textual specifications into valid Mermaid diagram source code.

Updated Oct 15, 2025
Search Tags:#documentation#accessibility#mermaid#flowchart#visualization#diagram#sequence-diagram
One-click install
npx skills add https://github.com/odeciojunior/claude-play --skill mermaid-designer
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mermaid-designer
Source: https://github.com/odeciojunior/claude-play/tree/main/plugins/productivity-tools/skills/mermaid-designer
Command: npx skills add https://github.com/odeciojunior/claude-play --skill mermaid-designer

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill removes the friction of producing accurate, accessible Mermaid diagrams by translating textual descriptions and documentation requirements into well-structured Mermaid syntax while avoiding common parser errors and rendering issues.

Core Features & Use Cases

  • Diagram selection & guidance: Recommends the optimal Mermaid diagram type (flowchart, sequenceDiagram, erDiagram, classDiagram, gantt, etc.) based on the user's intent.
  • Valid syntax generation: Produces Mermaid source that follows node ID rules, reserved-word avoidance, label length guidance, and diagram-specific gotchas.
  • Accessibility & compatibility: Inserts accTitle/accDescr where supported, includes required text descriptions for screen readers, and advises on GitHub rendering limitations.
  • Validation & quality checks: Enforces complexity thresholds, layout recommendations, naming conventions, and a final checklist to ensure the diagram will render and remain readable.
  • Use Case Example: Create architecture context diagrams, ER schemas for data models, sequence diagrams for API interactions, or Gantt timelines for roadmaps with accompanying descriptive text.

Quick Start

Create a left-to-right flowchart of the user signup to payment process, include accTitle and accDescr after the diagram keyword, and add a short descriptive paragraph explaining each step.

Frequently Asked Questions about mermaid-designer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I convert technical documentation into valid Mermaid diagrams?▼

To convert technical documentation into valid Mermaid diagrams, provide your textual specifications to the tool. It translates them into well-structured Mermaid syntax, automatically handling node IDs and reserved words to prevent common parser errors.

What is the best way to generate accessible Mermaid sequence diagrams for Markdown?▼

The best way to generate accessible Mermaid sequence diagrams is using a tool that automatically inserts accTitle and accDescr tags. This ensures your embedded Markdown diagrams include required text descriptions for screen readers.

Which Mermaid diagram type should I use for system architecture and data flows?▼

Choosing the right Mermaid diagram type for system architecture and data flows depends on your intent. The tool recommends optimal types like flowcharts, sequenceDiagrams, or erDiagrams based on the textual description you provide.

Does Mermaid syntax have complexity thresholds or layout limitations for GitHub rendering?▼

Yes, Mermaid syntax has complexity thresholds and layout limitations for GitHub rendering. This tool enforces naming conventions, layout recommendations, and GitHub-compatible rendering choices to ensure your diagrams render correctly and remain readable.

Why does my Mermaid flowchart fail to render due to reserved words?▼

Mermaid flowcharts often fail to render due to reserved words or invalid node IDs. By enforcing strict node ID rules and avoiding reserved words during syntax generation, this tool prevents these common rendering issues.

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