Whenever a new technology shows up, the conversation quickly splits into camps. There are the people who reject it outright, and there are the people who seem to adopt it with religious enthusiasm. Fo...
Last week we learned about Anthropic’s Mythos, a new LLM so “strikingly capable at computer security tasks” that Anthropic didn’t release it publicly. Instead, only critical software makers ha...
A couple of years ago, “slop” became the popular shorthand for unwanted, mindlessly generated AI content flooding the internet including images, text, and spam. Simon Willison helped popul...
For eight years, I’ve wanted a high-quality set of devtools for working with SQLite. Given how important SQLite is to the industry1, I’ve long been puzzled that no one has invested in building a r...
In this article, I want to cover the overall design of coding agents and agent harnesses: what they are, how they work, and how the different pieces fit together in practice. Readers of my Build a Lar...
In 1998, Eric S. Raymond published the founding text of open source software development, The Cathedral and the Bazaar. In it, he detailed two methods of building software: The ideas crystallized in T...
The week of September 29 2025, there were 27.7 million public commits on GitHub. Claude Code accounted for 180,000 of them, about 0.7%. By the week of March 16 2026, total weekly commits had grown to ...
I have observed this pattern repeatedly. A senior engineer, when asking the AI to generate a new service, instinctively specifies: follow our functional style, use the existing error-handling middlewa...
