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
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…
2 days ago | [YT] | 17
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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
1 week 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
2 weeks ago | [YT] | 22
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Leon van Zyl
Where do you actually spend most of your coding agent time? 👇
4 weeks 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?
1 month ago | [YT] | 4
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Leon van Zyl
This is how to run agents 24/7 to continuously improve my apps - from adding new features to fixing bugs. I simply review the PRs and merge the changes I approve.
https://youtu.be/X_oW2ZNJfcM
1 month ago | [YT] | 60
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Leon van Zyl
It finally arrived in the mail 🥹
Holding this 100,000 subscriber award is honestly such a special moment. Thank you again to everyone who has supported the channel throughout the years - whether you’ve watched one video, left a comment, shared a tutorial, joined the community, or been here from the early days.
I’m incredibly grateful for all of you.
To celebrate the milestone, I already published a special 100K video where I take you behind the scenes and show how I create my content - from planning and recording to editing and using AI in my workflow.
You can watch it here:
https://youtu.be/cT1zhqtrDSk
Thank you again. This really means a lot ❤️
1 month ago (edited) | [YT] | 331
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Leon van Zyl
My OpenAI Codex Tutorial for Beginners is live 🚀.
https://youtu.be/VX3RXec-Ots
I find GPT5.5 to be cheaper and faster than Opus 4.8, and the results are incredible.
1 month ago | [YT] | 35
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