Aka Mchims Thams cad mkhyen pa. Abbot of Snar thang from 1250 to 1285. A 33-folio cursive manuscript of his work De bzhin gshegs pa bdun gyi mchod pa ji ltar bsgrub pa'i tshul exists. Kuijp, KPTB, p. 6.
I wonder if he might be the Dge slong Nam mkha' grags who authored a text on Rab gnas. See Drepung Catalog, pp. 938, 1227-1228.
A Gsan yig (Mkhan po mchims pa'i gsan yig), in 7 folios, is listed in Drepung Catalog, p. 1233.
Dungkar Rinpoche's dictionary, p. 858.
His biographies of early Bka' gdams pa masters is described in Roesler, Palace, p. 128 ff., with a translation of part of the biography of 'Brom ston. It is also described in Eimer, Sources, p. 381, where his biography of 'Brom ston pa is studied.
Some of his works are published in Kadam Sungbum, vol. 61, pp. 3-116. This includes two gsan yig titles, a work that seems to be on the history of blo sbyong, etc.