Thinking of some chores they could feasibly do… could be like the Farmhands in Farm Together, doing the chores within a certain radius of where you put them. Big ones I see: collecting crops, fueling portals, gather coin from plinths (send direct to your account), and killing critters. Maybe cut and plant grass options. Use tools you put in their inventory. I guess that could be a tough one though, suppose it would be like a bot citizen.
Could maybe even set to “Follow” mode, take them along with you. Set priorities (kill, gather: lustrous wood, gather: desert sword, ect), though they’ll stop and continue following once a certain distance away… also serve as a pack mule.