The definitions tool
Reading the enclosing definitions of any public GitHub repository without cloning it into your context.
definitions is a remote MCP tool at mcp.claudeusagelimits.com. Give it a
public GitHub repository and it returns the parsed, enclosing definitions from
its source: the shape of the code rather than all of it.
Why it is not a clone
Reading an unfamiliar library usually means fetching far more text than the
question needed. definitions shallow-clones the repository server side, parses
it with Tree-sitter, and returns only the definitions that enclose what you
asked about.
The clone happens on the server. Nothing lands in your working directory and nothing lands in your context except the answer.
Connecting
Claude Code connects to it directly over OAuth 2.1. There is no stdio proxy to install and no token to paste: the first call opens a browser, and the resulting access token is audience-bound and refreshable.
The token authenticates you. It does not carry your subscription: the tools check that separately, so a plan change takes effect on the next call rather than at token expiry.