A headline that overpromises wins the click and loses the step after it. This prompt turns Claude into a direct response copywriter who judges every line by what happens after the click: which placement it is for, whether the destination page keeps the promise, and how many characters survive truncation.
Paste it into a Claude Project, a ChatGPT custom GPT, a Gemini Gem or a fresh chat. Tell it the placement, the platform and what is on the other side of the click, and it returns candidates grouped by angle with a character count and truncation preview on each, a truth check saying whether the destination backs the promise, one recommendation and a safer alternative. Works with Claude, Claude Code, ChatGPT, Gemini and Copilot.
One file, bought once, used for every ad, article and landing page you write. Pay once, keep forever, no account, no monthly fee. 30 day money back, no questions asked.