What is Mermaid syntax?

Mermaid is a Markdown-inspired text syntax used to generate diagrams like flowcharts and sequence diagrams. It renders as SVG and is natively supported by platforms like GitHub.

Does this skill support database modeling?

Yes, it provides comprehensive syntax for Entity-Relationship (ER) diagrams, including primary keys, foreign keys, and cardinality notation.

Where can I render the diagrams generated by this skill?

Diagrams generated using this skill can be rendered directly in GitHub READMEs, GitLab, Notion, Obsidian, and VS Code with the appropriate extensions.

Which diagram types can Claude generate with this skill?

Claude can generate flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, Git graphs, mindmaps, and C4 architecture models.

Is this better than using PlantUML?

Mermaid is often preferred for documentation because it requires zero setup and is natively integrated into most modern Markdown-based developer tools.

Mermaid Diagram Syntax Reference

Name: Mermaid Diagram Syntax Reference
Author: melodic-software

bymelodic-software

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Learning & Documentation

Generates accurate Mermaid.js diagram code for flowcharts, sequence flows, database schemas, and technical documentation.

About

This skill serves as an authoritative reference for Mermaid.js syntax, enabling Claude to generate precise, production-ready diagrams directly within Markdown files. It covers a vast range of visualization types including flowcharts, sequence diagrams, class structures, state machines, and entity-relationship models. By providing specific implementation patterns and platform integration guidance, it allows developers to visualize complex system architectures and logic flows without needing external design tools or leaving their coding environment.

Key Features

Standardized patterns for database Entity-Relationship (ER) diagrams
Detailed reference for node shapes, arrow styles, and subgraphs
Support for advanced features like C4 architecture models and mindmaps
Comprehensive syntax for 10+ diagram types including Gantt charts and Git graphs
Native integration guidance for GitHub, GitLab, Obsidian, and VS Code
1 GitHub stars

Use Cases

Mapping out project timelines and development roadmaps using Gantt syntax
Visualizing complex microservices interactions and API sequence flows
Documenting database schemas and entity relationships in technical wikis

About

Key Features

Standardized patterns for database Entity-Relationship (ER) diagrams
Detailed reference for node shapes, arrow styles, and subgraphs
Support for advanced features like C4 architecture models and mindmaps
Comprehensive syntax for 10+ diagram types including Gantt charts and Git graphs
Native integration guidance for GitHub, GitLab, Obsidian, and VS Code
1 GitHub stars

Use Cases

Mapping out project timelines and development roadmaps using Gantt syntax
Visualizing complex microservices interactions and API sequence flows
Documenting database schemas and entity relationships in technical wikis