The first time I had to sit down and write operating principles for two AI agents working on the same codebase, I had a moment of genuine déjà vu. It felt exactly like the early Foodora days. Too much speed, too little structure, and someone on the team absolutely certain they knew the fastest route even when the road wasn't built yet. Except this time the team is Claude and Codex. And I'm working
You have probably seen a file named “go.sum” in almost every Go project you have worked on. You may have even seen it change every time you run “go mod tidy”. But do you actually know what it does? It is one of those files that works silently in the background, and some developers never stop to think about it. The “go.sum” file is one of those files you never really interact with directly, but it