Someone drags a column into a visual, Power BI quietly makes a "Sum of Revenue", and the chart looks fine — but that aggregation isn't a real measure. You can't reuse it, no other measure can reference it, and it doesn't follow your naming or formatting. Worse, on a busy report those implicit aggregations hide everywhere: field wells, sort-by settings, conditional formatting, filter conditions. Hunting them all down and swapping each for a proper measure by hand is slow and easy to get wrong. This skill scans the page, shows you exactly what it found and the measures it plans to create, and — only once you say go — swaps every reference in place, reusing a matching measure when you already have one instead of making a duplicate — run it with /convert-implicit-measures.