Mermaid Tools

---

name: mermaid-tools description: Extracts Mermaid diagrams from markdown files and generates high-quality PNG images using bundled scripts. Activates when working with Mermaid diagrams, converting diagrams to PNG, extracting diagrams from markdown, or processing markdown files with embedded Mermaid code.

Mermaid Tools

Overview

This skill enables extraction of Mermaid diagrams from markdown files and generation of high-quality PNG images. The skill bundles all necessary scripts (

extract-and-generate.sh

,

extract_diagrams.py

, and

puppeteer-config.json

) in the

scripts/

directory for portability and reliability.

Core Workflow

Standard Diagram Extraction and Generation

Extract Mermaid diagrams from a markdown file and generate PNG images using the bundled

extract-and-generate.sh

script:

cd ~/.claude/skills/mermaid-tools/scripts
./extract-and-generate.sh "<markdown_file>" "<output_directory>"

Parameters:

• <markdown_file>

  : Path to the ma

Code Examples

README.md

# Skill Demonstrations

This directory contains automated demonstrations of each skill using [VHS (Video Home System)](https://github.com/charmbracelet/vhs) by Charmbracelet.

VHS allows you to write terminal recordings as code, making demos reproducible, version-controllable, and typo-free.

## 📁 Demo Structure

demos/ ├── skill-creator/ │ ├── init-skill.tape # Initialize a new skill │ ├── validate-skill.tape # Validate skill quality │ └── package-skill.tape # Package for distribution ├── github-ops/ │ └── create-pr.tape # Create pull requests ├── markdown-tools/ │ └── convert-docs.tape # Convert documents └── generate_all_demos.sh # Generate all GIFs

## 🎬 Generating Demos

### Prerequisites

Install VHS:

**macOS:**
```bash
brew install vhs

Linux (with Go):

go install github.com/charmbracelet/vhs@latest

Or download from: https://github.com/charmbracelet/vhs/releases

Generate All Demos

### generate_all_demos.sh

#!/bin/bash set -e

echo "================================================" echo "Generating Claude Code Skills Demo GIFs" echo "================================================" echo ""

Colors for output

GREEN='\033[0;32m' YELLOW='\033[1;33m' RED='\033[0;31m' NC='\033[0m' # No Color

Check if VHS is installed

if ! command -v vhs &> /dev/null; then echo -e "${RED}Error: VHS is not installed!${NC}" echo "" echo "Install VHS to generate demo GIFs:" echo "" echo "macOS:" echo " brew install vhs" echo "" echo "Linux (with Go):" echo " go install github.com/charmbracelet/vhs@latest" echo "" echo "Or download from: https://github.com/charmbracelet/vhs/releases" echo "" exit 1 fi

echo -e "${GREEN}✓ VHS found${NC}" echo ""

Find all .tape files

TAPE_FILES=$(find demos -name "*.tape" -type f | sort) TOTAL=$(echo "$TAPE_FILES" | wc -l | tr -d ' ') CURRENT=0

echo "Found $TOTAL demo tape files" echo ""

Generate each demo

for tape_fi

### index.html

Claude Code Skills Marketplace - Demo Gallery * { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: #333; line-height: 1.6; } .container { max-width: 1400px; margin: 0 auto; padding: 20px; } header { text-align: center; padding: 60px 20px; color: white; } header h1 { font-size: 3rem; margin-bottom: 10px; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); } header p