Agentic commerce: when the shopper is an agent

Vercel announced that Vercel Shop is generally available: an open source Next.js template for a Shopify storefront, built on the rebuilt Hydrogen SDK. The idea is to treat agents as first-class shoppers. Product pages are also served as machine-readable data (price, availability, options), and through Shopify's Universal Commerce Protocol an agent can search the catalog, build a cart and get a checkout link without clicking around the site.

I think the direction is right. Agentic commerce is coming, and an agent scraping a page built for humans is a silly way to buy a jacket. But the announcement is about plumbing. The interesting questions are on the other side of it.

I spent a couple of years on Stripe payments for fashion e-commerce sites, and this year I run a small Shopify storefront of my own. So here is what I think actually changes.

Catalog data stops hiding behind photos. On a human page, a beautiful image covers a lot of sins. Sizes named three different ways, a color called "bone" on one product and "off-white" on another, stock that ships in three weeks. A person squints and figures it out. AI shopping agents read exactly what you published. If your data is messy, the agent skips you or buys the wrong thing, and then you get the return.

The e-commerce checkout is still the hard part. Tobi Lütke says it himself: "Checkouts are ridiculously hard to get right." I agree, and I notice the protocol ends with a checkout link. So the agent fills the cart, and a human probably still pays. Sensible for now. The friction did not disappear, it just moved to the last step.

Fraud rules were built to stop bots. For years a lot of fashion e-commerce energy went into keeping automated traffic out, especially on limited drops (ahhh the ol' good times working for Off---White!! ...). Now some bots are customers. Fraud rules will need to tell a good agent from a reseller script, and I'm not sure anyone has a clean answer yet. Funny detail: Vercel's own merch store launched with limited-edition drops.

Attribution gets blurry. When a person arrives from an ad, you know what you paid for that visit. When an agent shows up with a full cart, who sent it? Which campaign made the human ask for your brand in the first place? You can't retarget an agent.

And this is the question the announcement skips, the one I care about as someone who has owned a media budget: who carries the CAC and the conversion risk? An agent can check twenty stores in a few seconds. Conversion rate as we measure it will probably drop, because the agent visits a lot and buys from one. The merchant still pays to be discovered, still pays the payment fees, still eats the returns. Meanwhile the agent operator owns the relationship with the buyer. That looks a lot like marketplaces, where the platform kept the customer and the merchant kept the costs.

Maybe it plays out differently. Serving agents from your own domain, as Vercel Shop does, keeps the cart and checkout on the merchant's side, which is a better start than living inside someone else's app. I'd just like the same energy that went into the protocol to go into the economics: who gets paid for the referral, and how a merchant knows if an agent brought a customer or just a very fast window shopper.