Train Ai to write like you

Every guide says the same thing: paste examples into custom instructions, add a line about your tone. It works for a few messages, then the model drifts back to default. The problem is that custom instructions describe your voice from memory. You write down what you think you do: "direct," "uses short sentences," "avoids jargon." That's a fraction of what makes your writing yours. The patterns that actually make you distinctive are ones you've never consciously noticed. Which punctuation you avoid entirely and where your analogies come from.