Is this ‘Agent’ an object, or actually a logged in avatar?
Is the ‘Agent’ the chacter that has the API key attached to it?
Have you checked out the ‘Twitch Plays Gather’ code example?
Few answers:
Currently, if the ‘Agent’ is not the API key holder, you cannot really force it to move. If it is the API key holder, then the “.move” command may help do what you are trying.
If the ‘Agent’ character is an object, you will have to manually animate it, moving from image to image based on direction it is moving.