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mermaid-diagram-generator

Generates Mermaid syntax diagrams for flowcharts, sequence diagrams, ERDs, and architecture visualizations in markdown.

2|Updated Jun 5, 2026
Search Tags:#documentation#markdown#mermaid#flowchart#ERD#sequence diagram#diagram
One-click install
npx skills add https://github.com/sathishssj3/NexVR-Engine --skill mermaid-diagram-generator-sathishssj3
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mermaid-diagram-generator
Source: https://github.com/sathishssj3/NexVR-Engine/tree/main/.agents/skills/mermaid-diagram-generator
Command: npx skills add https://github.com/sathishssj3/NexVR-Engine --skill mermaid-diagram-generator-sathishssj3

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Writing Mermaid diagram syntax from scratch is error-prone and requires memorizing many diagram-specific grammars, slowing down documentation work. ## Core Features & Use Cases - Multiple Diagram Types: Produces flowcharts, sequence diagrams, ERDs, state diagrams, class diagrams, git graphs, pie charts, timelines, and mindmaps. - Styling and Structure: Applies subgraphs, classDef styles, node shapes, notes, loops, and conditional blocks for readable diagrams. - Use Case: When documenting a microservices system, generate a complete architecture diagram with client, API, service, and data layers grouped in subgraphs, ready to embed in a markdown README. ## Quick Start Ask the AI to create a Mermaid sequence diagram showing the login flow between a user, client, API, auth service, and database.

Frequently Asked Questions about mermaid-diagram-generator

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

FAQPage Schema
How do I create a flowchart in Mermaid?▼

Start with 'flowchart TD' or 'flowchart LR' to set direction, then define nodes with labels and connect them using arrows like A --> B. Add decision branches with diamond nodes using curly braces, such as B{Is valid?}.

How to make a sequence diagram with Mermaid?▼

Begin with 'sequenceDiagram', declare participants, then write messages using arrows like Client->>API for requests and API-->>Client for responses. Use loop, alt, and note blocks to model polling, conditional paths, and annotations.

What diagram types does Mermaid support?▼

Mermaid supports flowcharts, sequence diagrams, entity relationship diagrams, state diagrams, class diagrams, git graphs, pie charts, timelines, and mindmaps. Each type uses its own keyword and grammar within a mermaid code block.

Does Mermaid support styling and colors in diagrams?▼

Yes, Mermaid supports styling through the 'style' keyword for individual nodes and 'classDef' for reusable style classes applied with 'class'. You can set fill colors, strokes, and text colors to highlight errors, successes, or system boundaries.

Why is my Mermaid diagram not rendering in markdown?▼

Rendering fails when the syntax is invalid for the diagram type or the viewer lacks Mermaid support. Validate keywords, arrow directions, and bracket matching, and confirm the platform (such as GitHub or a docs site) enables Mermaid code blocks.

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