Extension:Description2

Description2 adds a description meta tag for articles automatically based on the content. This functionality appears to have been removed from MediaWiki at some point. There are some situations where description extraction (by entities less sophisticated than Google, like Facebook) will extract the wrong description information from the wiki and use something like the sitenotice as the description for a page instead of it's content. This extension was written because Extension:Description looked poorly written, requiring the page to be processed twice (once for the normal output, and again by the extension itself to extract the description), and hardcoding processing looking for things like Image: embedding in ways that don't cope well with international wiki and the change from the namespace's name from Image: to File:. This extension also adds the description to the parser output in a way that other extensions can make use of (to say provide description in a different format like Extension:OpenGraphMeta does, or perhaps to use it in article lists on the wiki).

Installation

 * 1) Download a snapshot and extract it to your extensions directory.  Choose the version that matches your version of MediaWiki.
 * 2) Add   to the bottom of LocalSettings.php.
 * 3) Installation can now be verified through Special:Version of your wiki.