I have seen Ingenuity mentioned here:
Chaos [PENDING REVIEW]
Is Ingenuity a Shard?
Brandon Sanderson [PENDING REVIEW]
Umm...maybe. *smiles slyly*
source
and here:
Questioner
If you were entrusted with a Shard of Adonalsium, which Shard?
Brandon Sanderson
Ummm... Heh heh heh... maybe Ingenuity.
source
Is this canon?