vs-token-safer MCP server

vs-token-safer is a helper for coding assistants like Claude Code. It sits between your AI and your code, so instead of pasting huge chunks of source into the chat, your AI gets short answers like a file and line number. It is handy if you work in a big codebase and keep running out of room in the conversation.

What this MCP server does

You ask your AI a question about your code, like where a function is or what uses it. Your AI sends that question to vs-token-safer. The helper looks it up in a code index built by a language server, which is the same engine your editor uses for things like go-to-definition. It sends back a short list of file and line numbers, not the whole source. If you ask it to change something, it can edit just that one function by name, and it shows you a preview before writing anything.

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What you can do with it

• Find where a function or class is defined by name
• See every place a function is called
• Read just one function instead of a whole file
• Replace or delete one function by naming it
• Rename something everywhere it is used
• Search for a concept when you forgot the exact name
• Look up a section in a Markdown or config file by its heading

Try asking your AI

• “Where is createSession defined?”
• “What calls the AuthService class?”
• “Show me the body of the parseConfig function”
• “Find the code that handles user login, I forgot what it's called”

What it gives back to you

You get short answers in the chat, usually a list of file paths with line numbers. For a search, it might say the function name, which class it belongs to, and the file and line. For an edit, it shows a preview of the change first, then confirms once it is applied. It never dumps whole source files into the chat unless you ask for one specific function.

Before you start

Who it's for

Developers and anyone who uses an AI coding assistant on a medium or large codebase and wants to keep the conversation from filling up with pasted code.