Thread:Project:Support desk/MediaWiki search and META data

I've seen the various extensions for adding unique metadata to an individual page's header. I am creating a private/personal MediaWiki implementation, so I don't really care about SEO for external engines. However, I would like to be able to exploit the "keywords" attribute for my own use, basically using this as a separate layer of organization (like using "tags" in addition to categories). This all hinges on MediaWiki's ability to recognize its own metadata. Does the MediaWiki search look at meta tags in addition to the full body content? Or would this be useless for me?