When compared with Vector skin, there is missing a few items that seem to have to be:
inside <div class="container" id="content">:
- {{{sitenotice}}}
- page indicators T103452 ( BaseTemplate::getIndicators() )
- {{{title}}} can be empty and in such case it should not be displayed
- {{{prebodyhtml}}}
and after {{{bodytext}}}:
- {{{catlinks}}}
- {{{dataAfterContent}}}
It is also unclear about the support MediaWiki: Sidebar and hooks such as SkinBuildSidebar, SkinTemplateToolboxEnd etc...