When I go to autocomplete something like url.ParseQuery( below, a useless scratch window appears at the top. How do I get that to go away? Is that part of the snippets feature, or docs? I'm using YCM, if that helps.

Thanks for the cool plugin!
Pretty sure this is the preview feature that comes with some of the autocompleters like YCM and neocomplete.
You should be able to turn that off with
set completeopt-=preview
Yeap, as @nowk said it's a vim feature. Thanks for opening though.
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Pretty sure this is the preview feature that comes with some of the autocompleters like YCM and neocomplete.
You should be able to turn that off with