I'm not sure if he managed to be appointed early enough to do that. But he was able to repair the walls that wee in danger of being knocked down a level.
Claude and two other people did do a lot of heavy recruiting for the three or four battles that happened in Ozrat. Personally, I'm hoping that Claude holds on to the duchy, and doesn't pull a "I'll step down for the rightful duke" act. Because if the realm starts demanding that, then I'm going to demand that Jatha gives back Akanos.