From a page move: This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.
To a redirect category (rcat) template: This is a redirect from an alias/shortcut (usually), or from a redirect that is the result of a page move/rename, to a redirect category (rcat) template.
From an incorrect name: This is a redirect from an erroneous name – either an incorrect name or a title that is unsuitable as a Wikipedia article title or other project page name – that serves readers because it is a good search term. The correct name is given by the target of the redirect.
Pages that use this link should be updated to link directly to the target without the use of a piped link that hides the correct details.
If target page is not a template, then use {{R from shortcut}} instead.
Template shortcuts are wikilinked on community pages, talk pages and edit summaries, but not in mainspace articles. Transclusions in mainspace are common and do not need to be "fixed".
Note:Template talk pages are in a talk namespace; they are not in the template namespace. All shortcuts to talk pages should be tagged with {{R from shortcut}}.
When appropriate, protection levels are automatically sensed, described and categorized.