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The loop first, frameworks later.

Build AI Agents From Scratch

54 lessons·9 modules

Why learn agents from scratch

AI agents are where software is going. Soon every product you use will have one inside it, and the companies that visit your campus are already building them. In interviews this year they are not asking what an LLM is. They are asking how you would build an agent: the loop, the tools, the memory, and what happens when it fails. They do not want you to start from the basics. They expect you to know these parts already. And once you do, building an agent is easy. Frameworks change every few months; the loop underneath has not changed since 2022.

  • 01Agent foundations
  • 02Memory and planning
  • 03Frameworks and runtimes
  • 04Benchmarks, interfaces, and observability
  • 05Reliable production agents
  • 06Agent workbench foundations
  • 07Workbench operations and capstone
  • 08Agent-assisted engineering
  • 09Product judgment and delivery

Nine modules, in the order a working engineer would need them: first the loop with no framework at all, then memory and planning, then the frameworks everyone names in interviews, then testing, safety, and shipping agent work inside a real codebase.

  1. A situation you already know, from daily life, so the problem is obvious before any jargon.
  2. The idea, in plain words, with a flow you can see.
  3. A small Python program, standard library only. Run it, then break something on purpose and watch what happens.
  4. Where you will meet this in real products, and the mistakes people make with it.
  5. The interview questions you are likely to get, with model answers, then a short quiz.

One lesson a day, about an hour each. Fifty-four lessons, in order. Mark a lesson done only when you can explain it to a friend without looking.

M.01QUEST BEGINS
M.02TRIAL UNLOCKED
M.03MINI-BOSS
M.04POWER-UP
M.05BONUS ROUND
M.06DEEP SPACE
M.07FINAL STRETCH
M.08QUEST BEGINS

Build AI Agents From Scratch, from the team behind OA Helper and Open AlphaEvolve.

Summarise with AI

  • ChatGPT
  • Claude
  • Perplexity
  • Grok
  • Google AI Mode
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