Turn complex codebases into clear, navigable architecture diagrams with Claude Code.
# Add to your Claude Code skills
git clone https://github.com/oh-my-mermaid/oh-my-mermaidGuides for using cli tools skills like oh-my-mermaid.
Last scanned: 5/2/2026
{
"issues": [
{
"type": "npm-audit",
"message": "picomatch: Picomatch: Method Injection in POSIX Character Classes causes incorrect Glob Matching",
"severity": "high"
},
{
"type": "npm-audit",
"message": "postcss: PostCSS has XSS via Unescaped </style> in its CSS Stringify Output",
"severity": "medium"
},
{
"type": "npm-audit",
"message": "vite: Vite Vulnerable to Path Traversal in Optimized Deps `.map` Handling",
"severity": "high"
}
],
"status": "WARNING",
"scannedAt": "2026-05-02T06:06:37.107Z",
"semgrepRan": false,
"npmAuditRan": true,
"pipAuditRan": true
}English | Türkçe | 한국어 | 日本語 | 中文
Paste this in your terminal:
npm install -g oh-my-mermaid && omm setup
Then open your AI coding tool and use the /omm-scan skill:
/omm-scan
That's it. View the result:
omm view
omm scanned itself. This is what it found.
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 analyzed. Complex nodes become nested child elements with their own diagrams. Simple ones stay as leaves. The filesystem reflects the tree:
.omm/
├── overall-architecture/ ← perspective
│ ├── description.md
│ ├── diagram.mmd
│ ├── context.md
│ ├── main-process/ ← nested element
│ │ ├── description.md
│ │ ├── diagram.mmd
│ │ └── auth-service/ ← deeper nesting
│ │ └── ...
│ └── renderer/
│ └── ...
├── data-flow/
└── external-integrations/
The viewer auto-detects nesting from the filesystem — elements with children render as expandable groups, others as nodes.
Each element carries up to 7 fields: description, diagram, context, constraint, concern, todo, note.
omm setup # Register skills with your AI tools
omm view # Open interactive viewer
omm config language ko # Set content language
omm update # Update to latest version
Run omm help for the full command list.
Skills are commands you run inside your AI coding tool (not the terminal). They start with /.
| Skill | What it does |
| --- | --- |
| /omm-scan | Analyze codebase → generate architecture docs |
| /omm-push | Login + link + push to cloud in one step |
You can store your architecture in the cloud via ohmymermaid.com.
omm login && omm link && omm push
It's private by default. Share with your team, or make it public like this example.
| Platform | Setup |
| --- | --- |
| Claude Code | omm setup claude |
| Codex | omm setup codex |
| Cursor | omm setup cursor |
| OpenClaw | omm setup openclaw |
| Antigravity | omm setup antigravity |
Run omm setup to auto-detect and configure all installed tools.
See docs/ROADMAP.md.
git clone https://github.com/oh-my-mermaid/oh-my-mermaid.git
cd oh-my-mermaid
npm install && npm run build
npm test
Issues and PRs welcome. Use Conventional Commits.
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