mermaid

Create, validate, and export Mermaid diagrams from Markdown sources.

Updated Aug 23, 2026

Search Tags:#markdown #mermaid #validation #diagrams #export #diagram-rendering

Ready to run

npx skills add https://github.com/larsboes/pai-marketplace --skill mermaid-larsboes

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: mermaid
Source: https://github.com/larsboes/pai-marketplace/tree/main/marketplace/plugins/content/skills/mermaid
Command: npx skills add https://github.com/larsboes/pai-marketplace --skill mermaid-larsboes

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Mermaid diagrams are often created in isolation and manually rendered, which slows documentation and knowledge sharing. This Skill provides a cohesive toolkit to create, validate, extract from Markdown, batch validate, and export diagrams.

Core Features & Use Cases

Generate Mermaid diagrams from text or code blocks
Validate syntax and export to PNG, SVG, or PDF
Extract Mermaid blocks from Markdown documents and batch process diagrams
Use with Markdown docs, design specs, and knowledge bases to produce ready-to-share visuals

Quick Start

Create a new Mermaid diagram file and render it to PNG or SVG with the included tooling.

Frequently Asked Questions about mermaid

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

FAQPage Schema

How do I extract and batch validate Mermaid diagrams from Markdown files?▼

Extract and batch validate Mermaid diagrams from Markdown files by identifying embedded code blocks and parsing them with mermaid-cli. This automates syntax checking across documentation, ensuring all diagrams are valid before rendering or sharing.

Can I export Mermaid diagrams to PNG, SVG, or PDF?▼

Export Mermaid diagrams to PNG, SVG, or PDF using the integrated mermaid-cli rendering engine. The tool supports various output formats, allowing you to customize theme, size, and background during the export process.

Does the mermaid-cli tool support custom themes and background colors?▼

The mermaid-cli tool supports custom themes and background colors for diagram rendering. You can configure these visual options alongside size adjustments to produce tailored PNG, SVG, or PDF outputs for your documentation.

What is the best way to automate Mermaid diagram creation and validation in documentation workflows?▼

Automate Mermaid diagram creation and validation by processing Markdown sources in batches. The toolkit extracts diagram blocks, validates syntax, and renders visuals, streamlining documentation and knowledge sharing workflows.

Why do my Mermaid diagrams fail to render from Markdown sources?▼

Mermaid diagrams fail to render from Markdown sources due to syntax errors or incorrect block extraction. Use the validation feature to parse and check diagram syntax with mermaid-cli before attempting to export.

Do I need mermaid-cli installed to batch process Mermaid diagrams?▼

You need mermaid-cli (mmdc) to parse and render Mermaid diagrams. The Skill relies on this dependency to extract blocks from Markdown, validate syntax, and execute batch exports to image or PDF formats.