Yasuyo was involved in the compilation of 'Nihon Koki' (the third of the six classical Japanese history texts) and 'Dairishiki' (Ceremonial Book of the Court), and his writing was included in the 'Keikokushu' ('Collection for ordering the state,' Japan's third and last imperial anthology of literature in Chinese).
「日本後紀」「内裏式」の編纂にもかかわり、「経国集」にも漢詩が入集している。