diagram-expert

Generate flowcharts, UML diagrams, and network graphs using Mermaid, PlantUML, or GraphViz.

1|Updated Mar 19, 2026

Search Tags:#architecture #mermaid #flowchart #visualization #diagram #graphviz #uml

Ready to run

npx skills add https://github.com/wwsun/skills --skill diagram-expert-wwsun

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: diagram-expert
Source: https://github.com/wwsun/skills/tree/main/skills/diagram-expert
Command: npx skills add https://github.com/wwsun/skills --skill diagram-expert-wwsun

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps users generate accurate and visually appealing technical diagrams without needing extensive drawing skills or diagramming tools.

Core Features & Use Cases

Diagram Creation: Supports generating flowcharts, sequence diagrams, architecture graphs, ER diagrams, and Gantt charts.
Tool Selection: Recommends appropriate diagramming tools like Mermaid, PlantUML, or GraphViz based on the user's needs.
Use Case: A software engineer wants to visualize a system architecture; they describe the diagram, and this Skill provides the code in the selected format for easy rendering.

Quick Start

Ask the AI to generate a flowchart illustrating the user login process using Mermaid syntax.

Frequently Asked Questions about diagram-expert

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

FAQPage Schema

How do I generate a flowchart using Mermaid syntax?▼

To generate a Mermaid flowchart, describe the logical steps of your process to the AI, which outputs the correct Mermaid syntax for immediate rendering into a visual diagram.

What is the best way to create UML diagrams without drawing tools?▼

Creating UML diagrams without drawing tools involves generating code-based outputs using tools like PlantUML or Mermaid, where you describe the system architecture to produce professional visual graphs.

Can I use GraphViz to visualize system architecture?▼

Yes, you can use GraphViz to visualize system architecture by providing a text description of your components, which generates the appropriate GraphViz code for rendering network graphs.

Does this approach support generating ER diagrams and Gantt charts?▼

Yes, code-based diagram generation supports ER diagrams and Gantt charts, recommending appropriate syntax and applying proper color schemes for professional presentation.

How do I choose between Mermaid, PlantUML, and GraphViz for diagrams?▼

Choosing between Mermaid, PlantUML, and GraphViz depends on your diagram complexity and style requirements, with recommendations provided to match the specific visualization task.

Why use code-based tools instead of visual editors for technical diagrams?▼

Code-based diagramming tools streamline visualization tasks for engineers by ensuring proper syntax and professional color schemes without requiring extensive manual drawing skills.