Module 3: Tools

What you need first

• Module 1: the notes-assistant repository from its lab, NoteStore, chat(), and a first MCP server and client in memory and over stdio.
• Module 2: messages on the wire, errors and transports. The lab rebuilds Modules 1 and 2's files if any are missing.
• Python type hints, and Pydantic models at the level of a field with a description.