mermaid

Generate Mermaid diagram code from natural language requirements.

2|1|Updated Mar 1, 2026
One-click install
npx skills add https://github.com/junDevCodes/Claude-Harness --skill mermaid-jundevcodes
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mermaid
Source: https://github.com/junDevCodes/Claude-Harness/tree/main/.claude/skills/mermaid
Command: npx skills add https://github.com/junDevCodes/Claude-Harness --skill mermaid-jundevcodes

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Mermaid diagram generation from natural language requirements to visualize ideas quickly.

Core Features & Use Cases

  • Generates Mermaid code for flowcharts, sequences, classes, ER diagrams, Gantt charts, and more based on user prompts.
  • Reads diagram-type references and applies theming and directives to tailor the output.
  • Useful for rapid prototyping, documentation, and design reviews by turning requirements into ready-to-render diagrams.

Quick Start

Describe your diagram requirement and I will generate the Mermaid diagram code.

Frequently Asked Questions about mermaid

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

FAQPage Schema
How do I generate Mermaid diagrams from natural language prompts?

To generate Mermaid diagrams from natural language, describe your visual requirement such as a process flow or system interaction. The tool maps your text to suitable diagram types like flowcharts or ER diagrams and outputs ready-to-render Mermaid code.

Can I create an ER diagram and sequence diagram using Mermaid automation?

Yes, you can automate ER diagram and sequence diagram generation by providing text requirements. The tool supports ER diagrams, sequence diagrams, class diagrams, Gantt charts, and more, converting your descriptions directly into valid Mermaid syntax.

What is the best way to customize Mermaid diagram theming and configuration?

The best way to customize Mermaid diagram theming is by using frontmatter config and directives. The tool reads diagram-type references to apply theming and directives, allowing you to tailor the visual output of your flowcharts and sequence diagrams.

Does Mermaid support Gantt charts and class diagrams for documentation?

Mermaid supports Gantt charts and class diagrams for documentation by translating your text prompts into structured code. This allows you to rapidly prototype visual project timelines and system architectures directly from your design requirements.

What are the limitations of generating Mermaid flowcharts from text?

A limitation of generating Mermaid flowcharts from text is that complex or ambiguous natural language prompts may require iterative refinement. You must review the output code and apply specific frontmatter directives to ensure the diagram renders exactly as intended.