Precompiled Cheetah templates are executed via the normal Python code execution path. Direct support for Cheetah templates without compilation (i.e. being able to go to http://foo.bar/a_cheetah_doc.tmpl) is nonpresent in SkunkWeb right now, but if there is demand, it could, of course, be added.
For Cheetah templates, $var won't fetch item from global namespace by default, so put this at the top of your Cheetah templates and you'll be good to go.
#silent self._searchList.append(globals())