Using it well.
THE STRUCTURE THAT WORKS
Context, task, audience, format, constraints, material.
THE ADDITION THAT CHANGES EVERYTHING
Your style brief, pasted at the front.
THE CONSTRAINT TO ADD TO EVERYTHING
"Do not invent any fact I have not supplied."
THE PROMPTS WITH THE HIGHEST RETURN
Customer enquiry replies Follow-up messages Written confirmations of what was agreed Quotations with an exclusions list
THE PROMPTS THAT PRODUCE THE MOST DANGEROUS OUTPUT
Anything asking for prices, figures, sources or local facts.
Those are invented, and they sound the same as correct answers.
HOW TO IMPROVE ANY PROMPT
Use it, note what you corrected, fold the correction in.
WHAT TO ASK FOR EXPLICITLY
Criticism. It agrees otherwise.
WHAT TO SUPPLY ALWAYS
The facts. It supplies the language.
THE TEST FOR ANY OUTPUT
Would you sign your name to it, having checked it?