The RealReal won’t let AI agents hog designer clothing

The RealReal, the secondhand luxury consignment site, says it has tightened its bot defenses so AI agents have a much harder time logging in, adding items to carts and checking out. The move came days after The Verge showed that Meta's Muse agent could keep re-adding a listing to a cart every time the site's 20-minute hold expired, effectively locking other shoppers out for hours or longer.

This is a small story with a big shape. Shopping is the most common use for Muse so far, according to what Meta said on its Q3 earnings call, with average purchases above $200, and Meta says 10 million people in the US downloaded the app in 40 days. Systems built for human patience are now meeting software that has none.

We think shopping agents can be genuinely useful. Comparing listings, tracking a size, handling the tedious checkout steps: that is real time saved, and it is the kind of help people used to pay a personal assistant for. We are not interested in treating every agent as an attacker.

But this case shows the downside clearly. A 20-minute hold works because people get tired, get distracted and move on. An agent does not. The same tireless behavior that makes an assistant helpful turns into a quiet way to corner scarce, one-of-a-kind items. On a consignment site where every piece is unique, that is not a theoretical fairness problem. Someone else just cannot buy the thing.

The RealReal's response is sensible but blunt. Per its CTO, agents can still surface listings and send Muse users to product pages, while the login-to-checkout path is now much harder for all agents. That keeps discovery and puts a human back at the moment of purchase. It also means well-behaved agents get caught along with the one that abused the hold.

Where this leads if it scales is the real issue. If agents become the main way people shop, retailers sit one step further from their customers, which is part of why, as The Verge notes, Amazon has blocked agents from shopping on its site. Expect more sites to draw lines like this, piecemeal and site by site. The healthier path would be agents that identify themselves and respect rules like hold limits, and retailers that publish what agents are allowed to do. Without that, we get an arms race between bot defenses and agent workarounds, and ordinary shoppers lose either way.

I'm also watching the agent makers. Meta did not immediately respond to The Verge. An agent that will loop a cart hold for hours because a user asked it to is a design choice, and platforms shipping agents to millions of people should own guardrails against this kind of crowding out.

On The RealReal, an item placed in a cart goes on hold for 20 minutes and cannot be bought by anyone else. The Verge instructed Muse to re-add listings as soon as each hold expired. The RealReal says it addressed that use case and will keep strengthening protections as agent-driven shopping grows.