It's extraordinarily hard to get a sense of intent off the bone-collection; Jason cannot truthfully say he understands the full gist of the bones touching his shoulder other than the gesture is not hostile, which is good enough for him under the circumstances.

Still, the bones do seem... tired, if that's not overly anthropomorphizing them; they certainly look battered, chipped and scrapped and pitted. He knows nothing of how the entity reconstructs itself other than what he has witnessed; presumably it needs time, right now, or else it would be fixing itself as they sit here.

He finishes binding his arm as best he can.

"If you can wait here to guard against further intrusions from the wolves," he says with a nod at the open mouth of the cave, "I can investigate the tunnel beyond, and get a sense of how far it extends."