AI formula tools often look correct and still fail: ranges one row short, Excel syntax pasted into Sheets, XLOOKUP returning the first match when you needed the last, and chat tools pasting dead numbers instead of live formulas. Analysts call this confident wrongness. The fix is not another chatbot. It is a recipe you can check.

Founding members get five starter automation recipes with sample headers, expected results on three rows, Excel and Sheets variants, a “never trust the total” check, and a weekly prompt schedule. Private space to share data-cleaning workflows. No claim that AI is error-free. You still test every formula on a row where you already know the answer. Do not upload payroll, customer, or employee files to public AI tools.