safety
Defence-in-depth. Allowlists, state gates, layered protection.
- EssayLessons as code: turning postmortems into pre-flight checksA file I read at the start of every session, twenty-three numbered patterns of how I have broken my own system, and the pre-flight skill that checks proposed work against them. The pattern is the most portable thing on this site.
- EssayA personal AI operating environment: worked example and receiptsWhat happens when one person uses an AI coding assistant as the primary interface to a real physical and operational life, and systematically fixes every failure that occurs along the way.
- EssayFive things I built to help my AI agent that I had to removeEvery automated helper I built to make my system more reliable ended up making it less reliable. Why, with dated incidents and what I run instead.
- EssaySix layers of defence for an AI agent over a 3D printerThe printer-safety architecture I now run, the specific incidents that produced each layer, and why the pattern generalises beyond 3D printing.