Leon van Zyl
Welcome to my YouTube channel!
Here, you'll find step-by-step tutorials on building real-world solutions with AI. From AI agents and automation workflows to vibe coding and agentic coding, I cover it all - using both code and no-code tools like n8n, Claude Code, Codex, Cursor, and more.
Whether you're a vibe coder building your first app with AI, or a developer integrating agents into your workflow, there's something here for you. I focus on practical, hands-on tutorials that you can follow along with and implement right away.
New videos every week - thanks for stopping by, and I hope you enjoy the content!
Let’s work together!
- For brand, sponsorship, and business enquiries: leon@cognaitiv.ai
Leon van Zyl
GPT-6 Astra and the Blender MCP is wild.
I asked GPT to research how guns worked, and it animated the pistol (without downloading existing assets by the way!)
Full tutorial:
https://youtu.be/vr_iCHPY8yI
1 day ago | [YT] | 5
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Leon van Zyl
I just used Fable 5.1 to build the ultimate coding harness for local, open source models.
Smol Coder is open source and available right now.
https://youtu.be/WjOcStPCbgk
2 weeks ago | [YT] | 59
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Leon van Zyl
I think DeepSeek Harness is a preview of where agentic harnesses are going.
Everything is a plugin. The UI, the tools, the agent loop, the models. You're not using someone else's agent, you're assembling your own.
And it's the perfect home for local models like Qwen 3.8.
https://youtu.be/N7Hkqznvc7I
2 weeks ago | [YT] | 50
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Leon van Zyl
Everyone shows the fun part of agentic coding. Prompt in, app out.
I recorded the rest. Agent rules, design system, skills & MCP, planning, auditing, deploy.
Empty folder to live app, 10 lessons.
masterclass.agenticcoding.cc/lesson/qr-studio-intr…
3 weeks ago | [YT] | 22
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Leon van Zyl
Most "AI features" in apps are just a chat box bolted onto the side. It answers questions, and that's where it stops.
The Claude Agent SDK changes what's possible there. You can give your own app an agent that actually uses tools and takes real actions on the user's behalf. In my new video I use it to build an app where the agent sends real, legally binding agreements and routes them through an approval step, all from a chat interface.
Full build here: https://youtu.be/epGDGyTZs5Y
4 weeks ago | [YT] | 37
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Leon van Zyl
We just launched the biggest build-along yet inside Agentic Labs: a production-ready agentic workflow that takes you from a blank project to a live production app. Setting up the dev environment, choosing a real-world tech stack, building user authentication, a real database, real payments, and deploying it so actual users can sign up right away.
To celebrate, I'm running the first special I've ever done: a full year of Agentic Labs for $190 instead of $290. That's under $16/month, and your renewal stays locked at $190. Ends Thursday 13 August at midnight.
👉 skool.com/agentic-labs
1 month ago | [YT] | 22
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Leon van Zyl
Where do you actually spend most of your coding agent time? 👇
1 month ago | [YT] | 7
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Leon van Zyl
Have you tried Hermes Agent?
In this video we look at the new features - like the desktop app and web ui.
https://youtu.be/RnxXr_2ix3k
1 month ago | [YT] | 4
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Leon van Zyl
I tried Kimi K3 in an actual agentic coding workflow to see if really holds up to Fable 5 or GPT 5.6.
https://youtu.be/3B-c34_Fa3Y
1 month ago | [YT] | 3
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Leon van Zyl
What did you build with Fable 5?
2 months ago | [YT] | 4
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