This is a snippet of code taken from a Wordpress site using the famous (not so sure) Yoast WordPress SEO plugin v22.214.171.124.
Besides the plugin, the site has some really good information about in page/site SEO regarding wordpress, but it can also be applied to other types of web software, like wikis.
Placed the snippet here because I was thinking it would be really good if we had an automatic page keywords finder AND automatic description generator.
For the automatic description generator, if you use the technic of writing posts making a punchy affirmation first and then explaining it, it gets really easy to get a description variable filled on the advent that you have not wrote a description yourself for the page.
Here is the snippet:
<!-- This site is optimized with the Yoast WordPress SEO plugin v126.96.36.199 - http://yoast.com/wordpress/seo/ --> <title>The title</title> <meta name="description" content="The description"/> <link rel="canonical" href="The canonical URL to this pages" /> <meta property='og:locale' content='example:en_us'/> <meta property='og:title' content='The title'/> <meta property='og:description' content='The description or excerpt from text'/> <meta property='og:url' content='The canonical URl to this page'/> <meta property='og:site_name' content='WikiTitle'/> <meta property='og:type' content='doc type, see how many types we can have'/> <meta property='og:image' content='Image for article, if none, provide default, prolly site logo'/> <!-- / Yoast WordPress SEO plugin. -->
Some links explaining ogp and keywords use: