Prompts That Hold Up
Most disappointing AI output isn't the model's fault — it's an underspecified prompt. Here's the repeatable structure that turns a vague ask into a reliable result, every time.
write a marketing email
Generic, forgettable, "sounds like AI." You rewrite it twice and give up.
You're a sharp B2B copywriter. We're a video agency emailing past clients about a new AI service [brief attached]. Write a 120-word re-engagement email for a sceptical marketing manager. Warm, confident, one clear CTA.
Specific, on-brand, usable on the first try.
"Make it good" isn't an instruction — it's a wish. The model is rarely the problem. The prompt is.
The RCTF framework
Interactive: RCTF Prompt Builder
Fill the four boxes — or tap a sample to load one — and watch a complete, reliable prompt assemble below. Then copy it into Claude.
Three habits that compound
Key takeaway
Role, Context, Task, Format — then steer. Get those right and output stops being a gamble. Context is the cheat code: give Claude the memo, the audience and the goal, and it stops guessing.