My 2019 article ‘From Planning to Prototypes: New Ways of Seeing Like a State’ (P2P) drew attention to some shortcomings of the kinds of critical, reformist impulses fostered in law and development work. I sought to show that persistent preoccupations with the destructive hubris of ‘top-down’ planning—especially state planning—bypassed the tendency for great power to be deployed in other stylistic modes: through the release and responsive tweaking of prototypes, for instance. This article engages with later developments—at one of P2P’s main (...) field sites and scholarly literature in dialogue with P2P—to build upon the analysis therein. It elaborates on the kinds of power animated through prototyping, showing how prototyping is often combined with other governance styles and what it makes of the inputs on which law has typically been said to draw and of law’s claims to autonomy. It complicates the provenance of this style by reference to mid-to-late-twentieth century UN sanctions regimes, highlighting that governance prototyping is as much state-made as business-led and not restricted to the development field. With particular attention to the strangeness of the human user presupposed by prototyping, this article also aims to identify some modes of critical engagement to which this governance style might be answerable. (shrink)