Latest / July 29, 2026
11 posts from engineering leaders published July 29, 2026, by Simon Willison, Lou Franco, Michael Lopp (Rands) and 5 more.
Years ago, we didn’t have SQL. There were people whose job was to generate software that would query large data sets. Their job title was COBOL programmer. Then SQL comes along—I’m simplifying this only a little bit—and it gives you this convenient way so people could just…
I like infinite games. These are things you do over and over because they are fun and you want to get better at them. You want to get better so that you can make the game more fun and want to play it more. The game is the point. But I often do have a […]
AI Worming through Word Neat new prompt injection variant by Håkon Måløy, who found a way to upgrade prompt injection attacks against Microsoft Word to full self-replicating worms: An attacker places hidden instructions in a document that is later used as source material in…
Right now we’re in the midst of a historic transition from traditional public-key algorithms based on EC-based cryptography and RSA, moving over to new post-quantum algorithms based on novel problems. This is why there are so many standards like HAWK being considered. If there…
The final measure of any financial negotiation is the feeling of whether or not you got a “deal”. That prior sentence… makes no sense. I wrote “measure,” and then six words later I wrote “feeling”. A feeling is never a measure, but yet, when you hand over your hard-earned money…
CrUX’s seasonal decline, Safari 27’s user-experience fixes, richer INP attribution, and long-session third-party costs all demand better interpretation.
TIL: Adding a custom MCP server to Claude and ChatGPT Connecting a custom MCP server to Claude and ChatGPT's standard chat interfaces is possible, but can take quite a few steps. Tags: ai , generative-ai , chatgpt , llms , claude , model-context-protocol
Systems & Infra READ ↗ 
Lorenz and Little: How Much Does Your Tail Cost? Lorenz and Little sounds like hipster burger bar from 2015. MathJax = { tex: {inlineMath: [['\\(', '\\)'], ['$', '$']]} }; It’s time for Marc’s Amateur Statistics Corner! Today: why I pay a lot of attention to tail latency when…
Three of the biggest changes in my life all stemmed, in part, from cold outreach. Originally I was waitlisted at Carnegie Mellon. Getting waitlisted is like, being the first loser: you’re good enough to be in the topic of conversation, but they make it clear that you’re not good…
I am delighted to announce that my book, Logic for Programmers , is now available! You can check out the release site here or go directly to buy the ebook or print versions . If you bought any of the early access versions, you can get the 1.0 for free from leanpub . This has…