Was just listening to the Lenny’s Podcast interview with Simon Willison, who mentioned another such incantation: red/green TDD. The model knows what this means and it just does it, with a nice bump in code quality apparently.

I’m trying out another, what I call the principle of path independence. It’s the idea that the code should reflect only the current requirements, and not the order in which functionality was added — in other words, if you should decide to rebuild the system again from scratch tomorrow, the code should look broadly similar to its current state. It sort of works even though this isn’t a real thing that’s in its training data.

Not sure this is a great idea. The model only internalized what it was trained on and writing prompts/context for itself isn't part of that. I try to keep my context as clean as possible, mostly today's models seem smart/aligned enough to be steered by a couple of keywords.

Ah yea I do that too. I often have reflection sessions with Claude where I ask it "how can I make sure you do behavior X so we get outcome Y?"

It works relatively well but not always.