lum1104/understand-anything

Understand Anything is a plugin for AI coding assistants (such as Claude Code, GitHub Copilot, Gemini CLI, and others) that takes any codebase and turns it into a visual, interactive knowledge graph you can explore in a browser. The idea is to help someone who is new to a large project see how all the pieces fit together, rather than reading thousands of lines of code from scratch. When you run the main command inside your project, the tool scans every file, function, class, and dependency and builds a graph where each piece of code is a node. You can click on any node to read a plain-English summary of what it does, see how it connects to other parts, and follow a guided tour that walks through the architecture in a logical order. The dashboard is color-coded by architectural layer, such as API, data, service, and UI, so you can quickly orient yourself. Beyond basic code structure, the tool offers a domain view that maps your code to the real-world business processes it models, such as checkout flows or user authentication steps. There is also a search feature that understands meaning: you can type a question like "which parts handle payment?" and it will find relevant nodes even if none of them are literally named "payment." A diff analysis feature shows which parts of the system would be affected if you changed a specific file, useful before making edits in an unfamiliar area. The tool also supports analyzing written knowledge bases, not just code. If you have a personal wiki of notes structured in a particular way, the tool can build a graph of the ideas and relationships within it. Installation is a single command in supported AI coding environments. The dashboard itself runs locally and supports multiple languages including Chinese, Japanese, and Korean for teams working in those languages.