Stop asking for answers. Ask for the questions.
You don't know what you haven't specified. The model does, in about four seconds, if you let it ask. Then borrow a colleague's brain to ask from the angle you'd never think of. Five of them are on call, always.
Reverse‑prompting: the sixty‑second insurance policy
Instead of "write X", you say: "Before you write anything, ask me the five questions a <role> would need answered to do this properly. Then wait." The model lists what it would otherwise have guessed. You answer in one message. Then it writes, and it writes right.
→ 700 words. Wrong quarter boundaries. Mentions a feature Legal hasn't cleared. Two rounds to fix. You never knew those were open questions.
→ Q1: Which markets? Q2: Which features are cleared to mention? Q3: Fiscal or calendar Q4? Q4: Tone vs last update? Q5: One CTA or none? You answer in 90 seconds. Output is right first time.
Watch it: reverse‑prompt versus straight‑to‑output
Five virtual colleagues. Five lenses. Always on call.
Reverse‑prompting gets sharper when you tell the model whose questions to ask. THG has five virtual colleagues, each a persona with one signature question that catches a whole category of mistakes. Full profiles live at virtual‑colleagues‑thg.pages.dev. Here is what you need to pick the right one.
Reverse‑prompt maker: pick a colleague, type your task
This builds the exact reverse prompt you should paste into your AI tool. Use it until you can write it from memory.
Build your reverse prompt
Game: pick the colleague
A real THG task. Whose lens do you reverse‑prompt with first? One pick. Wrong goes red and shakes. Right goes green, and you get the exact question that colleague would have asked.
Whose lens first?
Quiz: prove it
Five questions. Four right to pass.