coldstart MCP server

coldstart is a helper for AI coding assistants. It gives your AI two things: a notebook of notes about how your project works, and a fast way to find which files matter for a task. It is handy if you use Claude Code, Codex, or Cursor on a real project and you are tired of the AI starting from scratch every session.

What this MCP server does

You ask your AI something like which files handle login. The AI uses coldstart to search your project by file names, symbol names, and imports, and gets back a ranked list of likely files. It can then ask coldstart about one file to see its main pieces and who uses them. coldstart also keeps a notebook of notes that past AI sessions wrote about your code, and it hands those notes back when they match your current task. If the code changed since a note was written, coldstart marks that note as possibly out of date instead of pretending it is still true.

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What you can do with it

• Find which files in your project relate to a topic you name
• See the main symbols in a file and who imports or calls them
• Save notes about how your code works so later sessions can reuse them
• Search those saved notes by task words, symbols, or file names
• Look up everything known about one exact file or symbol
• Get a warning when a saved note no longer matches the code
• Open a simple browser page to read the notebook

Try asking your AI

• “Which files handle user login and sessions?”
• “Show me the shape of src/auth/service.ts and who calls into it”
• “What do we already know about the Tile model?”
• “Find files related to payment retries and webhooks”

What it gives back to you

You get back lists of file paths ranked by how well they match your words, with short previews of where your terms appear. For a single file you get its main symbols with line numbers and a list of who imports or calls them. Saved notes come back as a short title, a one-line gist, and the file path they refer to. If a note's evidence changed, you see a label saying so instead of a confident answer.

Before you start

Who it's for

Developers and technical teams who use an AI coding assistant on a codebase and want it to stop re-learning the project every session.