Chat Commander is a client side Chrome extension that integrates commands for your use.
So far there are three commands here
- /collapse
- /uncollapse
- /giphy <Phrase/Word>
So collapse and uncollapse are self-explanatory, they take any onebox chat message (Wikipedia, SO Question/Answer, Youtube, Image, etc.)
/giphy will send a Gifs to the chat according to anything you send after it.