Glossary
Shopping agent
A model plus the tools to search, compare, and sometimes buy a product for an adult shopper.
A shopping agent is an agent pointed at a purchase. The model reads the request. The harness calls a catalog, a price check, a cart, and, when the product allows it, a payment.
Comparing three items in a chat is advice. Adding a live price from a product feed, or paying under a rule the person already set, is the agent. How far it may go without a new confirmation is autonomy. The payment step itself is agentic checkout.
The longer guide is Can an AI shopping agent check out for you?. The workshop around any of these products is What is an AI agent harness?.