This work investigates the normative foundations of instrumental rationality and the conditions under which an agent's desires and beliefs provide reasons for action. John Brunero examines the internal consistency of practical reasoning, specifically focusing on the requirement that agents ought to intend the necessary means to their ends. He utilizes a rigorous analytical framework to evaluate how structural requirements of rationality relate to substantive reasons for action.

Experts in meta-ethics and practical philosophy identify this as a significant contribution to the ongoing debate regarding the nature of rational requirements. Readers frequently note the academic density of the prose, which is intended for an audience familiar with contemporary analytic philosophy.