openai just published a document naming the exact words that make writing sound like ai, and telling its own model to stop using them. delve. foster. leverage. it's worth noting. genuinely. straight from astra's own official model guidance, not a secondhand summary. it goes further than words. bans the "this isn't about x, it's about y" pattern. bans invented compound jargon that sounds technical and means nothing. pairs the ban list with a positive instruction, short paragraphs, one idea each, plain words, the point stated early. this holds better with astra specifically than with any prior model, since it follows an instruction with less drift across a long session than anything openai's shipped before. copy both instructions into your custom instructions. full masterclass below.