How do you implement a list tools function in an MCP client?

The list tools function gets all available tools from the MCP server. The implementation is straightforward: you access your stored session, which is the connection to the server, you call its built-in list tools method, and you return the tools from the result. From the application's perspective, this is a simple async function that returns a list of tool definitions. The session and protocol details are completely hidden, so the rest of your application just sees a clean list of tools it can pass to Claude when constructing a request.