about identity, intent, and emotional assurance. 139 Q UA RT E R _ 0 2 _ 2 0 2 6 It plateaus where human involvement is intrinsic to value, and it becomes selective amid trade-offs and uncertainty. Understanding these patterns is critical for retailers deciding where to invest, what to expose to agents, and how to compete in an agent-mediated world. Where Delegation Accelerates: Utility, Repetition, and Low-Regret Purchases In categories where shopping is primarily a task rather than an experience, delegation tends to move quickly up the curve. Low-regret pur chases such as groceries, household essentials, and basic consumables are natural candidates for higher autonomy. Here, the value of shopping lies in efficiency, reliability, and predictability rather than discovery or expression. - - - As agents prove capable of assembling bas kets accurately, executing within guardrails, and handling substitutions or delivery changes gracefully, consumers become comfortable delegating execution entirely. Attention shifts from evaluating options to reviewing outcomes: Was the order on time? Did it stay within bud get? Were substitutions reasonable? Over time, approval becomes implicit and intervention becomes the exception. - - For retailers, this dynamic reshapes competi tion. Brand storytelling and front-end experience matter less than opera tional trust. Agents optimize for delivered value—factors such as price, availability, service reliabil ity, and reversibility. Merchants that expose clean inventory data, pre dictable fulfillment performance, and transparent substitution and return policies become default suppliers, often without ever “winning” a tra ditional moment of consideration. In these categories, being agent-read able and dependable matters more than being distinctive. - Where Delegation Plateaus: Identity, Aspiration, and Regret Risk In high-consideration categories, such as luxury goods or milestone purchases, delegation often plateaus lower on the curve. Here, shopping is not merely about outcomes; it is about identity, intent, and emotional assurance. Consumers may enthu siastically enlist agents to research, compare, and analyze but stop short of fully autonomous execution. - Consider a luxury-handbag purchase: A con sumer may ask an agent to evaluate how different brands hold value over time, analyze resale markets, or assess how a particular style aligns with their per sonal aesthetic. The agent may surface alternatives, identify better price points in the resale market, or locate in-store availability. But the final decision and the transaction itself remain firmly human. - - - - - In these moments, the agent functions less as an executor and more as an analyst and cura tor. The ceiling of delegation is set not by technical limitations but by emotional and identity-based considerations, such as the desire for a tactile expe rience, social signaling, or the avoidance of regret. Importantly, lower autonomy does not imply lower value. In many such categories, human involvement is itself a key component of the product. - - For brands, this distinction is critical. Compet ing effectively does not require pushing consumers toward full automation. It requires enabling agents to support delib eration by exposing rich contextual attributes, provenance, craftsmanship, and long-term value signals while pre serving human control at the point of commitment. In these categories, win ning means shaping how decisions are informed, not how quickly they are executed. - - - - An online version of this article is available on McKinsey.com Where Delegation is Selective: Complexity, Trade-Offs, and Context Most categories sit between these two poles. In travel, consumer electronics,