Hi, I was wondering what the best method was to copy motion clips between agents. Vex or python is preferred.

You can likely do this purely in SOPs using Agent Animation Unpack (output either a single motionclip, or a set of packed motionclips), and then use the Agent Clip SOP to import these into the other agent definition

In Python, there is a hou.AgentClip constructor that lets you make a copy of the clip for the other agent definition's hou.AgentRig

These both would require having matching skeletons / joint names for the joints that you want to copy animation between