This page lists the tags that the software may mark an edit with, and their meaning.
mw-blank
visualeditor
mw-contentmodelchange
mw-new-redirect
mw-removed-redirect
mw-changed-redirect-target
mw-replace
mw-rollback
mw-undo
abusefilter-condition-limit
swstaffedit
visualeditor-wikitext
visualeditor-needcheck
visualeditor-switched
mobile edit
mobile web edit
advanced mobile edit