Prescripts, eh? I am not so familiar with prescripts. Are they like precepts? Or a little play that you get the text of before something else? Like Polonius hands Ophelia a little dialogue on a sheaf of paper which lets her know, ahead of time, what she’s supposed to say. Or maybe it’s a play without words (a la Beckett) and it only includes the stage directions – those like, locking herself in, refusing all messengers, visitors and presents.