Documenting a page by hand means clicking each visual in Power BI Desktop and writing down what's in it — the fields, the measures, the tables behind them, the slicers, the Selection pane order. A page with 30 visuals eats an hour; five pages and you've lost a day. And the moment the report changes, your notes are out of date. This skill reads the whole page in one command and hands back the full inventory three ways — a styled Excel workbook to share, Markdown to drop into docs, and JSON if you want to feed it somewhere else — so documenting a report is a one-minute job instead of an afternoon — run it with /visual-inventory.