Bestiary 5, Tsukumogami, p. 253:
Ability Scores: A tsukumogami has a 15 Intelligence, 17 Wisdom, and 14 Charisma. A Medium tsukumogami receives a +4 bonus to Strength, a +4 bonus to Dexterity, and a Constitution score of 19. These ability scores are adjusted for size.
Emphasis mine... How does it works???
An Animated Object already gets adjusted scores depending on its size, so... what about here? I can understand that the Constitution score decreases or increases depending on size, but I don't get it for the Strength and Dexterity modifiers. Do both stay fixed or do they decrease or increase again with size?
It's just telling you not to apply the +2 strength/-2 dexterity for the size increase from small to medium on top of the adjustment listed here, that's all. I'm not sure what the confusion is. If the object increased in size again above medium you would adjust the strength/dex as appropriate (+2/-2).