Lukas Hefti Lukas Hefti

Workflow Wednesday: Defining the Playing Field for AI Agents

As a kid playing soccer, this was the big disappointment: you scored a goal, only for the referee to call offside. You thought you were behind the invisible line … but apparently not. This maps well to our third TODO when working with autonomous agentic systems (remember, the first was about circuit breakers and the second about fallbacks): guardrails and monitoring…

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Lukas Hefti Lukas Hefti

Workflow Wednesday: Fallback Is a Capability

In the last Workflow Wednesday, we talked about interruptibility by design and promised more todos when building agentic systems. Here is the second: fallback and override. Suppose you introduce transport robots in a warehouse…

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Lukas Hefti Lukas Hefti

Workflow Wednesday: Circuit Breakers for Agentic AI

Remember the market drop on May 6th, 2010? The Dow Jones lost 560 points in four minutes. Perceived risk spiked, market participants pulled out, and a stampede followed, temporarily annihilating roughly one trillion dollars in market value…

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Lukas Hefti Lukas Hefti

Workflow Wednesday: A Fireworks Way to Understand Data

Remember when you were a child on Silvester and were allowed to light a small firework for the first time? Chances are you were in awe, a little scared, and fascinated by the light at the same time. You kept your distance, careful about the splinters - and drawn to it…

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Lukas Hefti Lukas Hefti

Theory Thursday: How to Build Your Own Specialised LLM

Most of us use ready-made LLMs - they’re reliable, versatile and tested. But sometimes, you need to train your own. Andrej Karpathy’s llm.c shows how to train a small model on sequences, like lines from Shakespeare, by turning each word into a number and learning which comes next…

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Lukas Hefti Lukas Hefti

Trend Tuesday: OCR: Still Full of Surprises

“Optical character recognition (OCR) is a solved problem.” That’s a common conviction in the industry: it is often treated as a mature technology. A commodity we can stop worrying about…

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Lukas Hefti Lukas Hefti

Book The Modern AI and Data Platform: The Why, The What, and The How

After months of writing, editing, and refining … my upcoming book The Modern AI and Data Platform is almost here. It’s a collection of 42 short, fun-to-read chapters capturing everything we’ve learned about building powerful, future-proof platforms that create real value from data and AI, including the human side: culture, collaboration, and clarity. The book is structured in three parts: why AI belongs at the core, what defines a modern architecture, and how to turn principles into practice…

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