by oh-my-mermaid · Claude Skill · ★ 2.2k
Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h
🔒 Is oh-my-mermaid safe to install? View the security audit →
English 中文 Oh-my-mermaid AI writes code in seconds. Humans understand it in hours. But skip understanding, the codebase becomes a black box — even to you. omm closes the gap — architecture docs, generated by AI, for humans. Quick Start Paste this in your terminal: Then open your AI coding tool and use the skill: That's it. View the result: Example omm scanned itself. This is what it found. How It Works Your AI analyzes the codebase and generates perspectives — different lenses on your architecture (structure, data flow, integrations...). Each perspective contains a Mermaid diagram and documentation fields. Every node gets recursively
npm install -g oh-my-mermaid && omm setup
git clone https://github.com/oh-my-mermaid/oh-my-mermaid.gitTaken from the project's README on GitHub. Check the security audit before running it.
No red flags found in any of the 11 categories — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →
| Stars | 2,167 |
| Forks | 185 |
| Language | TypeScript |
| Category | Claude Skill |
| License | MIT |
| Quality Score | 67.4446706848227/100 |
| Open Issues | 10 |
| Last Updated | 2026-04-07 |
| Created | 2026-03-22 |
| Platforms | claude-code, cli, node |
| Est. Tokens | ~159k |
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oh-my-mermaid is Turn complex codebases into clear, navigable architecture diagrams with Claude Code.. It is categorized as a Claude Skill with 2.2k GitHub stars.
oh-my-mermaid is primarily written in TypeScript. It covers topics such as ai, architecture, claude-code.
The README on GitHub (github.com/oh-my-mermaid/oh-my-mermaid) gives: npm install -g oh-my-mermaid && omm setup , then git clone https://github.com/oh-my-mermaid/oh-my-mermaid.git. Usage details are in the same README.
oh-my-mermaid is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to oh-my-mermaid on Agent Skills Hub include readme-ai, claude-ads, code-graph-rag. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.
Grades come from a rule-based scan built on the SlowMist agent-security taxonomy, covering 11 red-flag categories including credential harvesting, data exfiltration, and curl | sh installers. It is a first-layer scan, not a manual audit — we say so rather than overstate it.
The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.
Sources & who's responsible: