Lab: Save the prototype server and check its wire

Module 2 · Lab · About 60 minutes · Needs: lessons 1 to 4 of this module, the Module 1 lab (or Step 2's cells), and a Groq or Gemini key in Colab's Secrets panel (Step 1 copies it; no model is called)

What you are building

It is Thursday 10 September 2026, still week 1. This week's lessons built a prototype notes server with every part of the protocol, drove it with a client that has no SDK, and broke it on purpose over stdio and over HTTP. All of that lives in notebook folders. This lab saves it in the notes-assistant repository: Lesson 1's server as examples/m02_server.py, Lesson 1's raw driver as examples/m02_wire.py, and a new script, examples/m02_lab.py, that turns the module's lessons into one wire report: seventeen checks, each one request, its expected reply and the reply that came back. Tests run the same report, so a later change that breaks the wire fails a test. No package file changes and no model is called.