The Agentic Commerce Stack — Ahnaf Prio, Best Buy

Add a second unit of the same item to your cart and, to you, nothing much happened.

To the merchant that is a second line item on a different SKU. Ahnaf Prio's argument is that agentic shopping breaks on exactly these unglamorous distinctions, which is why roughly 45% of sessions on the major assistants already touch shopping while the first wave of agents mostly failed at it. Those took screenshots, read the DOM and filled forms, and they were slow and brittle. From the merchant side an agent driving a browser trips every fraud alarm there is, so it often died at the payment step. What replaced it is a pile of acronyms he untangles one at a time: MCP for tool access, A2A so a customer agent and a merchant agent can talk, then two competing commerce primitives in ACP from OpenAI and UCP from Google, and AP2 for payment mandates that carry an authorizing party, a spend ceiling and a revocation URL. He runs the whole loop live through Jenny, his orange tabby recast as a bakery agent on Cerebras at 3,000 tokens per second, with an inspector showing every call and checkout state transition.

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