mermaid

Installation
SKILL.md

Mermaid Skill

Use this skill to quickly validate Mermaid diagrams by parsing + rendering them with the official Mermaid CLI.

Prerequisites

  • Node.js + npm (for npx).
  • First run downloads a headless Chromium via Puppeteer. If Chromium is missing, set PUPPETEER_EXECUTABLE_PATH.

Tool

Validate a diagram

./tools/validate.sh diagram.mmd [output.svg]
  • Parses and renders the Mermaid source.
  • Non-zero exit = invalid Mermaid syntax.
Related skills
Installs
20
GitHub Stars
2.4K
First Seen
Feb 12, 2026