You don't need a hundred data work prompts. You need five you trust and actually reuse.
Generate options, not answers
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.
Make the output reviewable
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.
Ask for the reasoning, then the result. When the model shows its steps you can see exactly where to push back.