oh-my-mermaid/

oh-my-mermaid

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Oh-my-mermaid is a TypeScript CLI tool that generates architecture diagrams from codebases using AI, presenting perspectives with Mermaid diagrams and documentation. It includes CLI commands, plugin architecture, and cross-tool support.

2.0kstars

168forks

9issues

MITlicense

2026since

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Reviewgenerated from repository data · Aug 5, 2026

What it is

Oh-my-mermaid is a TypeScript-based CLI tool that analyzes a codebase to generate architecture documentation and Mermaid diagrams. It organizes output as perspectives (structure, data flow, integrations) and nests elements to reflect the filesystem. It provides a viewer and a set of CLI commands to setup, view, configure language, and update.

How it works

The tool analyzes the codebase with AI to produce perspectives, each containing a diagram and documentation fields. Nodes may nest deeper elements, mirrored by the filesystem layout under .omm/. Perspectives include fields such as description, diagram, context, constraint, concern, todo, note. The viewer renders expandable groups for elements with children and nodes for leaf elements.

Getting started

"npm install -g oh-my-mermaid" && "omm setup" and then use the /omm-scan skill in an AI coding tool, followed by "omm view" to view results. Additional CLI usage:

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

Supported AI Tools include Claude Code, Codex, Cursor, OpenClaw, and Antigravity, with setup through "omm setup" commands.

Recent releases

v0.2.0 (2026-03-25): Perspective Class Tree by @hitkoo in pull request #17
v0.1.8 (2026-03-24): Transition to plugin architecture with multi-platform omm setup by @hitkoo in pull request #1; rename omm serve → omm view
v0.1.7 (2026-03-24): Transition to plugin architecture with multi-platform omm setup by @hitkoo in pull request #1; rename omm serve → omm view
v0.1.6 (2026-03-24): Transition to plugin architecture with multi-platform omm setup by @hitkoo in pull request #1; rename omm serve → omm view

Traction

2047 stars, 168 forks, 9 open issues

License

MIT

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