Deft disarm: this lists Unarmed 2 requirement in the table but Melee 2 in the write up. The description sounds like it should be Unarmed. Which is the requirement or is it both/either?
Sweep: This lists Melee as the requirement but seems to fit with Unarmed as well. Should this list either as a requirement?
Deft Disarm seems like it should be Unarmed to me as well. This is probably an artifact of a point in development when Unarmed was just a Focus of the Melee skill.
Sweep is fine as is, since the only change I would be inclined to make would set the prerequisite to either/or