"Agilodocodon scansorius" was about 13 centimeters from head to tail, and weighed about 27 grams. Its appearance was similar to a squirrel, with a long snout, curved, horny claws and flexible ankle and wrist joints typical of modern arboreal mammals. The front teeth were spade-like, indicating that "Agilodocodon scansorius" could gnaw tree bark and eat gum or sap.