Build a writing prompt set in Prompt Generator: one offer, three lengths

The waste in marketing and help copy is rewriting “you are a senior writer.” Persona belongs in a template. Length is the variable.

Open the on-site Prompt Generator. Role: “rewriter, no new claims.” Constraints: words you truly cannot say. Leave the task empty first.

Three tasks, one ban list

You now have three prompts. Store them as title / mail / explainer, not as “for ChatGPT.” Change models by changing the paste target.

1. Task A: a title under 12 characters (or ~8 English words); no punctuation piles.
2. Task B: a 120-word mail with one verifiable next step.
3. Task C: a 400-word explainer of existing claims only — no testimonials.

Test on a real piece

Run an old explainer you still stand behind. If the title invents a number, harden the bans. Do not blame the model first.

Jasper can eat the same bans. So can ChatGPT. The difference is the batch UI, not whether these three lines exist.

Do not put unreleased prices in a prompt template. Templates get shared.