**Background**
[[ https://www.mediawiki.org/wiki/Manual:Tags | Change tags ]] (aka revision tags) allow users to monitor for specific types of edits at Special:RecentChanges and Special:Watchlist. For example, the [[ https://en.wikipedia.org/wiki/Special:RecentChanges?hidebots=1&hideminor=1&hidecategorization=1&hideWikibase=1&tagfilter=mw-blank&limit=500&days=30&enhanced=1&urlversion=2 | #mw-blank ]] tag surfaces edits that blanked a page, which is often a form of vandalism. Similarly, we could introduce a tag for edits that add links to disambiguation pages, which could be of use to patrollers who aim to fix disambiguation links.
**Acceptance criteria**
* Add a tag, say `mw-add-disambig`, to edits that add links to disambiguation pages.
* For performance reasons, this should probably be done in a deferred update or through the job queue.
* Whatever logic we build that checks the parser output for disambiguation links could be re-used for other solutions for the [[ https://meta.wikimedia.org/wiki/Community_Tech/Warn_when_linking_to_disambiguation_pages | wish ]] – say to show a warning in the wikitext preview.