AI agents are ready to shop. Some retailers are wary.

Using an AI agent to shop for you is a strange experience. Tech companies have marketed them as personal assistants — the democratizing of labor that ordinarily would only be available to the rich and powerful. In practice, at least for buying things, it’s more like sending an anxious and apologetic teenager out to the store: They require an inordinate amount of instructions and specifications, run into technical problems regularly, and come back with solutions that are not exactly what…