he authored several scholarly works, most notably the widely cited "shiyurei kenesset hagedolah" and "kenesset hagedolah", halakhic commentaries to the arba'ah turim and shulhan arukh. these two commentaries are characterized by extensive analysis of halakhic sources from the mid-16th century to the mid-17th century. the chida recommended that these commentaries be consulted prior to rendering any halakhic decision.