Build Your Always-On AI Agent From Scratch · nineteen-chapter edition · 9 September 2026
Study worked implementations and their reasoning after attempting the exercises. Each notebook repeats the required setup and concepts, includes the full exercise context and tests additional cases.
Set up your environment · Download this complete asset
The edition has nineteen chapter slots. Sixteen chapters currently have two ninety-minute units each: 32 units and 48 hours of available practice. Chapters 4, 7 and 13 are planned construction briefs. The finished plan calls for 38 units and 57 hours; those six additional units are not yet published. Existing units use a supplied runtime and can be studied while the new foundations are authored. No completed notebook is represented by an empty placeholder.
| Chapter | Topic | Availability |
|---|---|---|
| 1 | Make the first model call for Lucy | Available draft — A and B, 90 minutes each |
| 2 | Give the agent reliable shop tools | Available draft — A and B, 90 minutes each |
| 3 | Build the model and tool loop | Available draft — A and B, 90 minutes each |
| 4 | Build durable SQLite state | PLANNED — brief only |
| 5 | Remember across conversations | Available draft — A and B, 90 minutes each |
| 6 | Reuse a tested opening procedure | Available draft — A and B, 90 minutes each |
| 7 | Build a durable work inbox and report outbox | PLANNED — brief only |
| 8 | Talk to the agent from your phone | Available draft — A and B, 90 minutes each |
| 9 | Wake up for schedules and stock events | Available draft — A and B, 90 minutes each |
| 10 | Ask permission before spending | Available draft — A and B, 90 minutes each |
| 11 | Survive the ambiguous supplier order | Available draft — A and B, 90 minutes each |
| 12 | Recover work after a process crash | Available draft — A and B, 90 minutes each |
| 13 | Build an MCP client and tool server | PLANNED — brief only |
| 14 | Isolate tools and untrusted content | Available draft — A and B, 90 minutes each |
| 15 | Measure whether the agent helps | Available draft — A and B, 90 minutes each |
| 16 | Improve behavior with evaluated changes | Available draft — A and B, 90 minutes each |
| 17 | Delegate one bounded task | Available draft — A and B, 90 minutes each |
| 18 | Deploy and maintain the agent | Available draft — A and B, 90 minutes each |
| 19 | Lucy leaves the shop for a day | Available draft — A and B, 90 minutes each |
How to use this asset
Start with the setup page. Choose a chapter, then Unit A followed by Unit B. Keep predictions, source changes, failed attempts and transfer results. Each unit supplies the concepts and runtime it requires; prior specialized-library experience is not assumed. Ninety minutes is a planned dedicated-work allowance, not a measured completion guarantee.
Notebook and Markdown files contain the same cells. Core work runs offline after setup. Live-model, Telegram, container and service-operation observations remain separate from local fixture results. These materials are construction drafts; classroom outcomes and editorial quality still require human review.
Find and share a file
Every teaching file starts with profrod-sovereign-agent, followed by its chapter, topic and role. Search for ch02 to find Chapter 2 or pydantic to find its typed-tool material. For example: profrod-sovereign-agent-ch02-a-pydantic-shop-tools-solution.ipynb. The exercise, solution, educator-exercise and educator-solution endings distinguish files even when copied into one folder. Keep the original filename and source links when sharing. The matching Markdown uses the same filename with .md.
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