 Fischer and Ravizza’s account has generated a great deal of attention and criticism. Some critics focus on the contrast (just noted) between the conditions they impose on receptivity to reasons and those they impose on reactivity to reasons (McKenna 2005, Mele 2006a, Watson 2001). Additionally, many are dissatisfied with Fischer and Ravizza’s presentation of their account in terms of the powers of mechanisms as opposed to agents. This has led some authors to develop agent-based reasons-responsiveness accounts that address the concerns that led Fischer and Ravizza to their mechanism-based approach (Brink &amp; Nelkin 2013, McKenna 2013, Sartorio 2016).