Thinking about a command that lets you define a command that load text from an external file or URL, this is also a geat way for API integration!
Let's say I have a PHP file that generates random jokes the I write
!addcmd !joke url:http://mydomain.com/jokes.php
When I use the command, it posts the content of the file, aka a random joke.
Or lets say someone wants to find a specific joke, you can program the target command
!addcmd !specificjoke url:http://mydomain.com/jokes.php?jokeid=@target@
When you type !specificjoke 5, then joke number 5 will show up!
Good idea?