It's a bit misleading to see
the [tag name] tag has no wiki summary, can you help us create it?
from where you are greeted with the tag info, however from here you are stuck and there is no way to know what the next step is (if there is one).
Tim Has explained that this is because someone has beat me to the action however there is no real way of telling wether this has happened or not.
- On the Tag info:
Clicking on either of these buttons didn't help either:
(clicking on 'edit pending' simply sends me to stackoverflow.com/privileges/approve-tag-wiki-edits)