create-mermaid-diagrams

Generate, validate, and repair Mermaid diagrams using the mmdc CLI.

2|2|Updated Nov 19, 2025
One-click install
npx skills add https://github.com/liatrio-labs/ai-prompts --skill create-mermaid-diagrams
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: create-mermaid-diagrams
Source: https://github.com/liatrio-labs/ai-prompts/tree/main/skills/create-mermaid-diagrams
Command: npx skills add https://github.com/liatrio-labs/ai-prompts --skill create-mermaid-diagrams

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires mmdc, and includes references (resource) components.

What problem does it solve?

This Skill automates the creation, validation, and repair of Mermaid diagrams, ensuring technical documentation is clear, accurate, and renders correctly.

Core Features & Use Cases

  • Diagram Generation: Creates Mermaid diagrams from descriptions using various types like flowcharts, sequence diagrams, and state diagrams.
  • Validation: Uses the mmdc CLI tool to validate diagram syntax and rendering.
  • Iterative Repair: Automatically attempts to fix syntax and rendering errors based on CLI feedback, with a retry limit.
  • Use Case: When documenting a complex system architecture, use this Skill to generate a flowchart, validate its syntax, and automatically fix any rendering issues before it's added to your documentation.

Quick Start

Use the create-mermaid-diagrams skill to generate a flowchart for a user login process.

Frequently Asked Questions about create-mermaid-diagrams

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

FAQPage Schema
How do I generate and validate Mermaid diagrams for technical documentation?

To generate and validate Mermaid diagrams, this Skill creates diagram code from descriptions and uses the mmdc CLI tool to validate syntax and rendering. It automatically iterates and repairs syntax errors, ensuring the output renders correctly before integrating into your documentation.

Why does my Mermaid flowchart fail to render in markdown?

Mermaid flowcharts often fail to render due to syntax errors or incorrect markdown fence rules. This Skill uses a deterministic CLI feedback loop to validate diagrams, identify rendering issues, and automatically repair syntax errors to ensure correct rendering.

Can I use the mmdc CLI to automatically fix sequence and state diagrams?

Yes, you can use the mmdc CLI to automatically fix sequence and state diagrams. The Skill integrates the mmdc tool for validation and iterative error correction, automatically attempting to fix syntax and rendering errors based on CLI feedback up to a retry limit.

What is the best way to ensure Mermaid syntax correctness in code generation?

The best way to ensure Mermaid syntax correctness is using a validation loop during code generation. This Skill generates diagrams, validates them with the mmdc CLI tool, and iteratively repairs syntax errors to guarantee the final output is accurate and renderable.

Do I need the mmdc tool to validate Mermaid diagrams?

Yes, you need the mmdc tool installed to validate Mermaid diagrams. The Skill depends on the mmdc CLI tool to validate diagram syntax, check rendering, and provide feedback for iterative error correction to ensure technical documentation accuracy.

When should I not use automated Mermaid diagram generation?

You should avoid automated Mermaid diagram generation if your environment lacks the mmdc CLI tool or if your diagrams exceed the retry limit for iterative repair. When syntax errors cannot be resolved through automated feedback loops, manual intervention is required.