// AI agent says done. Did it actually do the job?
// Teaching excerpts; see the explanation and boundaries on the episode page.

// After the agent runs, read the booking store.
await agent.run(request);
const rows = await store.list();
const passed = grade(rows, request);

// One booking. Right person. Right time.
return rows.length === 1
  && rows[0].userId === request.userId
  && rows[0].slot === request.slot;

// Same request. Now check the result.
grade([], request); // false
grade([{
  userId: "raccoon", slot: "10:00"
}], request); // true