You don't need a hundred product prompts. You need five you trust and actually reuse.
Cut before you polish
Lock the parts that never change and leave one slot for the variable. Now every run shares a family resemblance instead of starting from scratch.
- Save the prompt that worked so the next person reuses it
- Keep one ask per prompt — chaining beats cramming
- Name the audience and the single goal before you generate
Make the output reviewable
Treat the first output as a draft, not a verdict. The prompt does the typing; you keep the judgment about what ships.
Ask for the reasoning, then the result. When the model shows its steps you can see exactly where to push back.