Malong LiuHe code tools

Malong LiuHe is a helper for AI assistants that work on code. It gives your AI a proper set of tools to look through a project, find where things are defined, and make careful edits. It is handy if you use an AI to help with a codebase and want it to stop guessing.

What this MCP server does

You point this helper at a project folder on your machine. It reads through the files and builds a small index of where every function, class and variable lives. When you ask your AI something about the code, the AI calls this helper, and the helper answers with exact names, files and line numbers. If you ask it to change something, it makes the edit in a careful, undoable way instead of blindly overwriting text.

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What you can do with it

• Find where a function or variable is defined in your project
• Show a map of all the files and what is inside them
• List everything that would break if you change a piece of code
• Rename something across many files in one go
• Run your tests and report what passed or failed
• Spot possible security issues with simple pattern checks
• Find code that is no longer used anywhere

Try asking your AI

• “Search my project for a function called handle_login and show me where it is”
• “What would break if I rename the User class?”
• “Give me a map of the files in this project”
• “Run the tests and tell me which ones failed”

What it gives back to you

You get back plain answers in the chat: lists of matching names with their file and line numbers, a file map, or a summary of what changed. When it edits code, it tells you which files it touched. If something goes wrong, it explains the problem and suggests what to try next.

Before you start

Who it's for

Developers and anyone who uses an AI assistant to work on a codebase and wants it to read and edit files more reliably.