What diagram types are supported by this skill?

It supports over 24 types, including flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, user journeys, and timelines.

How do I customize the appearance of my diagrams?

You can use frontmatter configuration to apply themes like 'dark', 'forest', or 'neutral', and even apply custom CSS for specific styling.

Does it support the latest Mermaid.js features?

Yes, this skill is specifically designed for Mermaid.js v11, including advanced features like accessibility support and the latest diagram syntax.

Can I export these diagrams to images?

Yes, the skill includes guidance for using the Mermaid CLI (mmdc) to render your text-based diagrams into SVG, PNG, or PDF formats.

Is this compatible with standard Markdown files?

Absolutely. Mermaid.js is natively supported by many Markdown previewers (like GitHub and VS Code), and this skill follows the standard triple-backtick syntax.

Mermaid.js v11 Diagrams

Name: Mermaid.js v11 Diagrams
Author: mrgoonie

bymrgoonie

•

1,395

Learning & Documentation

Generates professional technical diagrams and visual workflows using Mermaid.js v11 declarative syntax.

About

The Mermaid.js v11 skill enables Claude to create high-quality, text-based visualizations directly within your development environment. It supports over 24 distinct diagram types, including flowcharts, sequence diagrams, and entity-relationship models, making it an essential tool for documenting complex system architectures and data structures. With built-in support for CLI rendering to SVG/PNG, custom theming, and accessibility features, this skill bridges the gap between technical logic and visual communication for developers, architects, and project managers.

Key Features

Comprehensive theming options including dark mode, forest, and hand-drawn styles
Declarative markdown syntax for easy version control and team collaboration
1,395 GitHub stars
Seamless JavaScript API patterns for embedding diagrams into web applications
Support for 24+ diagram types including Gantt charts, ER diagrams, and state machines
CLI integration for automated conversion of .mmd files to SVG, PNG, and PDF

Use Cases

Creating project roadmaps and user journey maps for product planning
Documenting microservices architecture and API sequence flows
Mapping database schemas and entity relationships for backend development

About

Key Features

Comprehensive theming options including dark mode, forest, and hand-drawn styles
Declarative markdown syntax for easy version control and team collaboration
1,395 GitHub stars
Seamless JavaScript API patterns for embedding diagrams into web applications
Support for 24+ diagram types including Gantt charts, ER diagrams, and state machines
CLI integration for automated conversion of .mmd files to SVG, PNG, and PDF

Use Cases

Creating project roadmaps and user journey maps for product planning
Documenting microservices architecture and API sequence flows
Mapping database schemas and entity relationships for backend development