An unnamed parameter will replace the word "article" in the alert box message — {{Cleanup HTML|section}} changes the message to start "This section uses HTML markup".
When adding to a page, it is helpful to other editors to specify which tags are unwanted, like this: {{cleanup HTML|tags=table, tr, td}} — These tags will be displayed in the alert box.
If a date parameter is provided such as {{Cleanup HTML|date=January 2025}} then the page is put into a by-month category instead. If the date is left out, a bot will add it later.
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