Agile trait is a weapon trait in Pathfinder: Kingmaker.
Effects[]
Agile weapons are unusually well balanced and responsive. A wielder with the Weapon Finesse feat can choose to apply her Dexterity modifier to damage rolls with an agile weapon in place of her Strength modifier (whichever is higher). This modifier to damage is not increased for two-handed weapons, but is still reduced for off-hand weapons.