The most interesting evolution of my agent workflow over the past year is that I've dropped all the language gimmicks: I used to use particular emoji to mark parts of code as hints to the AI, I structured planning docs in very rigid language for different types of instructions, and generally optimizing my language for machine consumption. That's all gone now: all my comments, directives, plans and so on are just plain and clear English, nothing more. They're direct and unceremonious, but no longer bullet points that were nearly caveman-speak. It just works better that way.