These messages are known as Watchlist notices.

Technical details

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This page is transcluded via MediaWiki:Watchlist-summary to the top of Special:Watchlist, where MediaWiki:Gadget-watchlist-notice.js selectively shows it to editors. The list itself is also used as an anchor point for Geonotices to insert themselves into the HTML. The specific watchlist notices that the user has dismissed are stored in the browser's local storage, in a variable named hidewatchlistmessages.

Message types and durations

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Other details

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  • Watchlist messages should be succinct.
  • All watchlist messages must have a single bolded call to action phrase or a word.
  • When adding a new message (rather than just correcting or updating one), please increment the number at |cookie= of {{Display/watchlist}} in order to rename and invalidate the previous dismiss cookies.