Constitutive instrumentalism is the view that responsibility practices arise from and are justified by our being prosocial creatures who need responsibility practices to secure specific kinds of social goods. In particular, responsibility practices shape agency in ways that disposes adherence to norms that enable goods of shared cooperative life. The mechanics of everyday responsibility practices operate, in part, via costly signaling about the suitability of agents for coordination and cooperation under conditions of shared cooperative life. So, there are a range (...) of identifiable conditions where the ordinary operation of responsibility practices—and thus, the usual normative force of the practices—is disrupted. Even so, these conditions are not so widespread as to favor a more thoroughgoing abandonment of responsibility practices. (shrink)