I have setup vim to use Ag for grepping and for use in the CtrlP plugin.
For tag autocompletion, I am using YouCompleteMe. To get autocompletion suggestions for functions throughout the whole project, I have to use ctags which generates tagfiles. I prefer to not use any files but just use Ag to dynamically look for autocompletion suggestions. I am aware of the fact that this could be possibly too slow, but I'd like to try anyway. Is there a way to configure YouCompleteMe to use Ag for autocompletion?