Describe the layout, sample values, and target result, then ask for a formula with comments. Include constraints like locale, separators, or error handling. This consistently prevents fragile logic. Finance analysts report fewer manual fixes after requiring a final rewrite that simplifies nested functions without sacrificing validation and clarity for reviewers.
Paste a troublesome formula, request a stepwise explanation in business terms, then ask for a safer variant and two test cases. Encourage suggestions for named ranges and intermediate checks. The pattern uncovers hidden assumptions, turning opaque spreadsheets into living documentation new teammates can trust and extend responsibly over time.