Not as far as I know, but I have personally seen my coding agents take on a prompt like "See if you can port this project to typescript", and work for hours, defining a myriad of subgoals and continuously summoning and managing subagents while developing ad-hoc tools and skills.

There is to the best of my knowledge no fundamental limitation to having an agent/claw go on like this for 80 years with a prompt like "live your life to the fullest".