He established a policy to restrict the Kanrei's power by appointing Mansai SANPOIN as a political adviser so that ceremonial styles and judicial proceedings that were used during the time of Yoshimitsu would be restored, and also by replacing the 'hyojyoshu' consultative board and 'hikitsuke' judicial board, which accepted individuals of only certain positions or families as participants, with the 'gozensata' advisory council, that he chaired and whose members were chosen by him.
三宝院満済を政治顧問に儀礼の形式や訴訟手続きなどを義満時代のものを復活させ、参加者の身分・家柄が固定化された評定衆・引付に代わって、自らが主宰して参加者を指名する御前沙汰を協議機関とすることで管領の権限抑制策を打ち出した。