Lenny the LLM: Life as a Language Model
A fun children's short story where you live the life of Lenny the LLM, and on the way, learn the most important terms and concepts related to LLMs
Ivo's AI blog
Articles on AI and agentic software development, autonomous agent workflows, dark factories.
Latest posts
The Unbearable Brittleness of Autonomy
Success with autonomous coding agents isn't a given. Let's take autonomy apart, see what's inside, and find what we can actually control.
Lies and deception of the Yes-man: How to ensure quality in Agentic workflows, Part 1
Fully autonomous coding workflows break down through compounding mistakes and hallucinations under uncertainty. I share two concepts that help keep the machine producing software instead of chaos, along with practical tactics.
How I use up two Claude Max subscriptions per week
Several people have asked how on earth is it possible to use up all the weekly credits from one Claude Max 220€ subscription, not to mention two of them. It's about building a factory that spends tokens for you, so here's a story about not
How 32 agents write code for me in parallel, with vanilla Claude Code
I made a pretty good breakthrough recently that often truly feels like 30x improved efficiency. Last time I wrote about arriving at a new bottleneck, which was a lack of a convenient way to parallelize work on the same codebase. Well, I seem to have found it! The key for
How to Claude Code: Latest insights into spec-driven agentic development (pt 3)
Last 2 weeks have been busy - in addition to a ski trip and a ski marathon (different skis!) I've had time to polish my behaviour-driven AI-first development workflow, since I adopted Gauge as a primary tool for maintaining truth in spec-driven development. I took up
Building a reliable Spec Driven Development workflow, and deleting my src folder to test it (Claude Code pt 2)
"Remember kids, the only difference between screwing around and science is writing it down" - Adam Savage This quote has stayed with me for life from when I watched Mythbusters as a kid. You could say this describes pretty well the difference between Vibe Coding vs Spec Driven Development
Deep into Claude Code in 2026 - learnings and insights (pt1)
Week 1 of Sabattical - did some Claude Code on Opus 4.5. I'm impressed and excited, so sharing some reflections. I timeboxed a week to do a random hobby thing - µbackup - a multi platform cloud backup client that supports your own cloud provider account. I'm