Fix Mermaid

Q: What is a Claude Code skill and how does the Fix Mermaid skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Fix Mermaid is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: General · Sub-category: automation · Last updated: 2026-05-28

Validates and repairs mermaid diagrams in markdown files. Scans for mermaid blocks, validates syntax, and auto-repairs common errors.

From the source SKILL.md

This command validates and repairs Mermaid.js diagrams in markdown files.

What this skill does

Fix Mermaid is a community-contributed Claude Code skill in the automation sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/fix-mermaid/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Fix Mermaid Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 76,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/fix-mermaid
curl -L https://claudskills.com/skills/fix-mermaid/SKILL.md \
  -o ~/.claude/skills/fix-mermaid/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/fix-mermaid/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/fix-mermaid/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\fix-mermaid\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Fix Mermaid Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/fix-mermaid/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Fix Mermaid skill do?

Validates and repairs mermaid diagrams in markdown files. Scans for mermaid blocks, validates syntax, and auto-repairs common errors.

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Fix Mermaid skill?

Use Fix Mermaid when your Claude Code task falls under the General category — specifically in the automation area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Fix Mermaid" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Fix Mermaid skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Fix Mermaid is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/rp1-run/rp1/blob/HEAD/plugins/base/skills/fix-mermaid/SKILL.md
License: Apache-2.0
Author: rp1-run
Website: https://rp1.run

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

rp1-run. (2026). Fix Mermaid [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/fix-mermaid/

BibTeX

@misc{fix-mermaid-2026,
  author    = {rp1-run},
  title     = {Fix Mermaid [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/fix-mermaid/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/fix-mermaid.svg)](https://claudskills.com/skills/fix-mermaid/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel