How to Build an AI Agent From Scratch

Hosted by Colin Matthews

Fri, Apr 17, 2026

4:00 PM UTC (30 minutes)

Virtual (Zoom)

Free to join

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Featured in Lenny’s List
AI Prototyping for Product Managers
Colin Matthews
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What you'll learn

Learn the fundamentals of building with LLMs

Learn how LLMs and agents work without tools or frameworks

No jargon, every term explained

Finally get a clear understanding of agents, tools, context windows, and more.

Build an understanding of foundations agent building blocks

Learn the building blocks of agents so you can apply them yourself without relying on existing tools

Why this topic matters

AI agents are everywhere. From Claude Code to OpenClaw, to every company seemingly wanting to ship an agent. But it's surprisingly hard to find high quality, simple explanations of how to build them without running into some framework or tool you "should" know. This session takes the opposite approach - no frameworks, no tools, just a clear explanation of fundamentals that anyone can understand.

You'll learn from

Colin Matthews

Sold my first SaaS in 2021. Product Manager, 8500+ students, featured by Lenny.

I’ve had my fair share of doubt when it came to technical skills. From flunking out of my first software engineering interview, to struggling to build my own SaaS products for years, I’ve always felt like an imposter.


In 2021, everything changed. I sold my first SaaS product as an independent developer.


Now, with AI tools, you can accomplish months of works in just hours using the right strategies. I want to help you use AI to build your software — whether thats for your own personal apps, work, or to sell a SaaS of your own. 

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