Osnova MCP server

Osnova is a helper that reads your code folder and builds a map of it. The map shows which functions and classes exist, where they are, and which ones call which. It is handy if you use an AI assistant to work on code and want it to stop guessing about how the pieces fit together.

What this MCP server does

You ask your AI something about your code, like who calls a certain function. Your AI passes the question to Osnova. Osnova has already read your project and built a map of names and calls. It looks up the answer in that map and sends it back. Your AI then explains the result to you in the chat.

What you can do with it

• Find where a function or class is defined, with the exact file and line
• List the places that call a function, directly or further down the chain
• Show the outline of one file: its functions, classes and line ranges
• See what a change touches, so you know what else might break
• Find test files that mention a symbol you care about
• Search your code by keyword or by text pattern
• Spot definitions that nothing seems to call

Try asking your AI

• “Who calls refreshWorkspace in this project?”
• “Show me the outline of src/api.ts”
• “What would break if I change the Command.Root function?”
• “Which test files mention the Configurator class?”

What it gives back to you

You get answers in the chat, written as lists with file names and line numbers. For a callers question, you see each caller, the lines where it calls, and a short note about why Osnova believes it is a real call. It also tells you what it could not confirm, so you know the limits of the answer.

Before you start

Who it's for

Developers and anyone who uses an AI assistant to read or change code and wants answers based on the real project, not guesses.

Jobs it suits