Are there any rules against modifying the rig or the armature of AccuRIG?
I assumed this was fine but I just wanted to clear it up

For example: I have a Robotic foot design that has an extra joint at it's heel, this clips with the floor upon using the Heel IK.
Is it against the rules to add extra bones and add new or modify rig functions?

Hi @Firedorn3D,
I've checked with the team, and it should be okay to add extra bones.
As long as you use AccuRIG in the beginning and re-pose your character. 

Hi @Firedorn3D,
I've checked with the team, and it should be okay to add extra bones.
As long as you use AccuRIG in the beginning and re-pose your character.