AR commerce introduces domain constraints that a generic game-asset checklist will miss. Frame asset specification around the actual release environment and the people who must trust the result.
For AR commerce, keep the asset specification pass focused on dimensions and fidelity, formats and metadata, and performance limits. Make one controlled change at a time and retain enough evidence for another person to repeat the decision.
Define dimensions, fidelity, formats, metadata, performance limits, and delivery evidence before production starts. Apply this asset specification guidance to the actual AR commerce delivery path.