Drepung Catalog, pp. 771-772, lists several works by this disciple and biographer of Phag mo gru pa. Some of these are actually the words (and therefore the 'work') of Phag mo dru pa.
He seems to be one of the three 'behesters' of the history by Nyang ral, where he appears as "rgyal ba'i sras po mthu bo chos ye."
Bibliography:
Bla gtsang bzhed rin chen rgyal mtshan lung bstan pa dang skyes rabs.