"I don't know if you've seen Gran Torino, but remember the line about a man aquiring tools over a period of time? Well it's kinda like that, identify your core needs and script them and build on those over a period of time."
"Anything other than the content can change, and if by changing the source the content breaks you've failed."
Make it work
Make it work better
make it work easier
make it work faster
Don't kill the animator
it's a constant flow of "ok, how can we make the rigs faster for animators", "how can i build this character faster?", "this step is taking too long, how can i automate this?"...
i always tell my riggers automate as much as they can... build tools to do things faster, that way you can spend that saved time on more important things (or even spending that time experimenting and playing with new stuff)