Mermaid Diagram Linter

Validates Mermaid diagrams in Markdown files for syntax errors, text overflow, and configuration requirements.

7|Updated Dec 23, 2025

Search Tags:#documentation #mermaid #validation #diagrams #syntax check #linter

Ready to run

npx skills add https://github.com/Data-Wise/claude-plugins --skill mermaid-diagram-linter

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Please help me install this Agent Skill.
Skill: Mermaid Diagram Linter
Source: https://github.com/Data-Wise/claude-plugins/tree/main/craft/skills/docs/mermaid-linter
Command: npx skills add https://github.com/Data-Wise/claude-plugins --skill mermaid-diagram-linter

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill automatically validates Mermaid diagrams within your documentation, catching syntax errors, text overflow issues, and common configuration mistakes before deployment.

Core Features & Use Cases

Syntax Validation: Checks for correct Mermaid syntax across all supported diagram types.
Configuration Checks: Verifies mkdocs.yml settings and CSS for optimal rendering.
Text Overflow Prevention: Identifies nodes with text exceeding recommended length.
Use Case: Before merging a documentation update, run this Skill to ensure all embedded Mermaid diagrams are syntactically correct, won't break on rendering, and display well on different screen sizes.

Quick Start

Run the mermaid-linter skill to validate all diagrams in the docs directory.

Frequently Asked Questions about Mermaid Diagram Linter

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

FAQPage Schema

How do I check Mermaid diagrams for syntax errors in markdown files?▼

To check Mermaid diagrams for syntax errors in markdown files, you can validate them against Mermaid syntax rules to identify potential rendering issues and receive actionable recommendations for improvement.

How do I prevent text overflow in Mermaid diagrams?▼

To prevent text overflow in Mermaid diagrams, you can identify nodes with text exceeding recommended length limits and apply text formatting best practices to ensure diagrams display well on different screen sizes.

How do I validate MkDocs configuration for optimal Mermaid rendering?▼

To validate MkDocs configuration for optimal Mermaid rendering, you can verify mkdocs.yml settings and check CSS stylesheets to ensure adherence to Mermaid syntax rules and configuration requirements.

Why do my Mermaid diagrams break when rendering in documentation?▼

Mermaid diagrams break when rendering in documentation due to syntax errors, configuration mistakes in mkdocs.yml, or CSS stylesheet conflicts, which can be caught by validating diagrams before deployment.

Can I automate Mermaid diagram validation before merging documentation updates?▼

Yes, you can automate Mermaid diagram validation before merging documentation updates by running a linter to ensure all embedded Mermaid diagrams are syntactically correct and will not break on rendering.

What is the best way to lint Mermaid diagrams across all supported diagram types?▼

The best way to lint Mermaid diagrams across all supported diagram types is to perform automated syntax validation checks that catch configuration mistakes and text overflow issues before deployment.