Oh-my-mermaid: AI-Driven Architecture Diagrams for Codebases

Repositoryoh-my-mermaid/oh-my-mermaid9 October 2026Tool

Oh-my-mermaid (omm) is a CLI tool and AI skill that analyses complex codebases to generate hierarchical architecture documentation powered by Mermaid diagrams.

Key points

Addresses the black-box problem caused when AI writes code faster than humans can understand it
Installs via npm and integrates as a skill into AI coding assistants such as Claude Code
Uses the /omm-scan skill to recursively generate perspectives on structure, data flows, and integrations within a local .omm directory
Stores element-level metadata including descriptions, Mermaid diagram files (.mmd), context, constraints, concerns, and notes
Includes an interactive local viewer (omm view) and optional cloud synchronisation via ohmymermaid.com

Why it matters

As AI code generation accelerates, software architecture risks becoming opaque. Oh-my-mermaid provides structured, visual documentation generated by AI to keep system designs transparent and navigable for human engineers.

Analysis

Targeted at developers using AI coding tools, the TypeScript project provides a clean bridge between code generation and architecture comprehension. With nearly 2,500 GitHub stars, an MIT licence, an active npm release, and cloud integration, it shows solid community traction and practical utility.

Mentioned links

Found in

oh-my-mermaid: Generating Architecture Diagrams from Codebases via AIX post

Summary generated by AI (Gemini 3.8 Flash, 9 October 2026). It may contain errors – the original source is authoritative.

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