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408 posts on AI agents, the laws and asymmetries that shape how we build, and lunch-break physics. Search, filter by tag, or start with a series.
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2026
- Is RAG Still Needed with 1M+ Token Context Windows?
The Kofferklausur, Revisited In September 2024, a colleague asked an audience: āWhat is RAG?ā I answered: Kofferklausur [1]. For non-German speakers: a Kofferklausur is an open-book exam. You bring yoā¦
- LLMs Don't Do Math ā They Predict What Math Looks Like
The Invisible Error To test this, I designed five calculations that anyone in business might ask an AI assistant, the kind of questions youād type into ChatGPT or Claude expecting a quick, reliable anā¦
- Security Is Job Zero ā Even (Especially) in the Age of Coding Agents
$20 and Two Hours On February 28, 2026, security startup CodeWall gave an autonomous AI agent a single input: a domain name. Two hours and approximately $20 in API tokens later, the agent had full reaā¦
- AI Coding Productivity: 10%, Not 10x
The Number Nobody Wants to Hear A few weeks ago, I wrote about running my entire workday through an AI agent [1], meetings, research, CRM, content creation. Eight hours of productive work, not a singlā¦
- Making My Website AI-Agent Friendly ā Here's What Changed
The Test That Failed Last weekend, I pointed an AI agent at my own blog and asked it a simple question about an article Iād just published, my hands-on experiment with self-reflection on Amazon Bedrocā¦
- When Thinking Twice Helps ā And When It Doesn't
The Saturday Morning Experiment Last Saturday, I installed a Python library, pointed it at Amazon Bedrock, and asked a model the same questions three times, with zero, one, and three rounds of self-reā¦
- "It's Faster If I Just Do It Myself" ā The Most Expensive Sentence in AI
The Moment I Almost Gave Up A few weeks ago, I spent 45 minutes teaching my AI agent how to prepare customer meetings. Pulling context from Slack, checking the CRM, looking up LinkedIn profiles, assemā¦
- The AI Investment Paradox ā A 1962 Book Explains Why Billions Don't (Yet) Deliver
The Paradox $37 billion invested in generative AI in 2025 alone. A 3.2x increase from the year before [1]. And yet, 95% of businesses have yet to see measurable ROI from their AI investments [2]. 42% ā¦
- CLI vs MCP: The Wrong Debate
The Zombie Processes and the 50GB Cache A few weeks ago, I noticed my MacBook was sluggish. I found orphaned MCP server processes that had failed to shut down cleanly, a problem Didier Durand describeā¦
- Your AI Models Have an Expiry Date ā A Practical Guide to Model Lifecycle Management
Introduction, The Promise I Made In my previous article [1], I explored the maintenance trap in IT, how software systems are more like plants than stones, requiring constant care. I ended with a cliffā¦
