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mermaid-diagram

Generate Mermaid diagrams from plain text requirements and validate syntax.

Updated Apr 10, 2026
Search Tags:#documentation#mermaid#requirements#visualization#diagrams#mermaid-cli#diagram-generation
One-click install
npx skills add https://github.com/KwongFuk/codex-skills --skill mermaid-diagram-kwongfuk
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mermaid-diagram
Source: https://github.com/KwongFuk/codex-skills/tree/main/global/mermaid-diagram
Command: npx skills add https://github.com/KwongFuk/codex-skills --skill mermaid-diagram-kwongfuk

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Mermaid diagram generation from user requirements enables rapid visual representation of complex ideas, reducing miscommunication and speeding decisions.

Core Features & Use Cases

  • Generate Mermaid code from natural language requirements for multiple diagram types (flowchart, sequence, class, ER, Gantt, and more).
  • Save two files per diagram: figures/<diagram-name>.mmd and figures/<diagram-name>.md, with syntax verification and a preview-ready Markdown wrapper.
  • Verify Mermaid syntax using the Mermaid CLI and render a PNG for quick validation.
  • Use case: convert a product spec or system design description into a ready-to-share visual diagram to align teams.

Quick Start

Provide a textual diagram description, and the system will generate and verify the corresponding Mermaid files under figures/.

Frequently Asked Questions about mermaid-diagram

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

FAQPage Schema
How do I generate Mermaid diagrams from plain text requirements?▼

To generate Mermaid diagrams from plain text, provide your natural language requirements to the system, which outputs syntax-verified Mermaid code and saves it as .mmd and .md files under a figures directory. This process directly converts textual descriptions into ready-to-share visual diagrams for team alignment.

What diagram types can I create using Mermaid for system design?▼

Using Mermaid for system design, you can create flowcharts, sequence diagrams, class diagrams, ER diagrams, and Gantt charts. These diagram types help visualize complex ideas, reducing miscommunication and speeding up decisions during product spec alignment and documentation workflows.

Does the Mermaid diagram generation process validate syntax automatically?▼

Yes, the Mermaid diagram generation process validates syntax automatically using the Mermaid CLI. It verifies the generated code, renders a PNG for quick validation, and performs a post-render review to ensure the output is preview-ready within a Markdown wrapper.

Can I use Mermaid CLI to save diagram files directly into a figures directory?▼

Yes, you can save diagram files directly into a figures directory. The system saves two files per generated diagram: figures/<diagram-name>.mmd for raw Mermaid code and figures/<diagram-name>.md with a syntax-verified, preview-ready Markdown wrapper.

What is the best way to convert a product spec into a visual flowchart?▼

The best way to convert a product spec into a visual flowchart is using Mermaid diagram generation. It turns plain text requests into flowcharts and other diagram types, applying syntax verification with Mermaid CLI to produce ready-to-share visuals for design communication.

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