Prior to Halfstar, Cloudclan was led by Slatestar, a conceited tom who forbade his clanmates from socializing with other clans, even at gatherings. If they wanted to make friends in other clans, cats would have to sneak behind his back. Cloudstar, who was watching from Starclan, was ashamed of his successor and in the end banished him to the Dark Forest. Halfpelt had been chosen as Slatestar's deputy, so now that he's gone, Halfstar is in charge of Cloudclan. When it comes to relationships with the other clans, she's much more lenient. Even though she desired it, she would not allow cross-clan relationships to take place. In that regard, she decided to follow the warrior code.