Thread:Project:Support desk/Wikitemplates interpretation/visualisation/reply (3)

I am sorry; while I have a reasonable idea what MediaWiki does, I know little of how it does it (and I’m not sure what you’re asking). I could say (a) when viewed or previewed, a template definition is formatted just like any other page and (b) when a template changes, MediaWiki reformats pages listed as using it; actually I think it would be better for you to study “For developers” on Manual:Contents.