 Once we have located the mechanism of action that is at work in the actual causal sequence of a Frankfurt example, we can turn our attention to understanding the dispositional features of it as a causal mechanism. If other reasons bear upon it, then it would be sensitive to some of those reasons. It would produce different conduct in some reasonable range of cases. If it would, then that very mechanism is responsive to reasons. Confirming that that very mechanism is responsive to reasons would not merely illustrate that, in scenarios other than the actual, the agent acts upon a mechanism sensitive to reasons. It would also illustrate that in the Frankfurt scenario in which the agent really does act, what does play a role in the actual causal sequence of her action is some feature of her agency (a mechanism) that itself is in fact a response to a reason.