BatchSort
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote
BatchSort sorts a whole table of parcels in one look. In a parcel locker network, every carrier drops its parcels at one hub. Before a parcel goes into a locker, a worker checks by hand who it is for, how big it is, which compartment fits, and whether it can share one with another parcel for the same person. That takes 10 seconds or more per parcel, one parcel at a time. With BatchSort, the worker puts several parcels on a mat, labels up. An iPhone above the mat sees colour and depth. Each parcel then gets one of three answers. Green means the right person, a clear lead over anyone else, and a compartment it fits with room to spare. Amber means something is uncertain, so the worker gets a choice and one tap. Red means no match, or no compartment fits. Some parcels are too big for every locker. Today someone has to phone the recipient before the truck leaves. BatchSort's agent does it by text. It asks if they can meet the driver today, offers other choices after a no, and books the answer. The rules are checked in code, so the model can't book anything the recipient wasn't offered. Every action is logged.