The agents reach the shop door

For two issues now I have been writing about agents, the kind of AI that does things on your behalf. This week the story left the lab and arrived somewhere very concrete: the shop door. Some doors swung open. Others shut in its face. In the same week, Meta let people talk to Facebook’s algorithm in plain sentences and had to walk back a clause that asked businesses for more than they knew they were giving.

Doors opening: Shopify and Google

On October 13, Shopify opened its catalog to any AI agent. In September, that access had gone only to Meta’s Muse. Now no partnership is needed. According to Digital Today, citing The Verge, a shopper links an agent to their account in the Shop app, sets conditions such as a budget or fast delivery, and the agent picks from more than a billion products. The shopper still has to approve every purchase.

Two days later, on October 15, Google launched Universal Cart in the US. It is a single cart that works across Google Search’s AI Mode and the Gemini app and collects products from different stores in one place. It alerts you to price drops and restocks, surfaces promo codes, and suggests which card in Google Wallet gives the better perk. At Nike, Sephora, Target, Ulta Beauty, Walmart, Wayfair and many Shopify stores, you can pay without leaving the cart.

On October 13, the same day as Shopify’s move, Gemini 4 Argon reached Google AI Pro and Ultra subscribers in the Gemini app. A toggle now switches between chat and tasks. In task mode, Gemini keeps working while you’re away from your computer and connects to more than 40 apps, including Instacart, OpenTable, Adobe and Shopify.

Doors closing: Amazon, the banks, an airline

The other side of the door had started moving in September. According to GeekWire’s September 20 report, Amazon asked Meta to keep Muse off its site, Meta declined, and Amazon blocked Muse from shopping on Amazon.com for customers. Amazon’s reasons: the agent browses without identifying itself and appears to store customers’ login credentials. Meta says Muse has no visibility into passwords or payment methods.

The Verge widened the picture on October 17. Yelp allows only agents that pay for a data license. Delta has no agreements with third-party agents. JPMorgan Chase and Charles Schwab block agents from customer accounts. Schwab’s CEO summed it up in one line: “We don’t want someone just giving their password to Muse.” Users have reported Amazon blocking xAI’s Grok agent as well, though Amazon has not confirmed it the way it did with Muse.

To me, this split is the real story of the week. The web is dividing into places that let agents in and places that don’t, and the dividing line is plain: whoever owns the checkout owns the customer. Shopify and Google can open the door because the payment runs through their own systems. Amazon doesn’t want a middleman between itself and its customers. If you run an online store, I think this question is on its way to you too. When an agent arrives to place an order for one of your customers, what happens? Few have been asked yet. It is worth having an answer before you are.

Talking to Facebook’s algorithm

On October 13, Meta added a space called “Your algorithm” to Facebook. You can add and manage the topics you want to see in Feed and Reels. When you tap “Interested” or “Not interested” on a post, Meta may ask a follow-up, and you explain in your own words what you liked or didn’t. Recommendations change within the same session. Meta says large language models interpret what you write, on top of existing signals such as likes, comments and watch time. It doesn’t say which countries have it.

This is the first time a major platform’s ranking system will take instructions in sentences. Here is a guess. If people start saying plainly what they want, the work for brands shifts away from gaming the algorithm and toward being the best answer to what people are actually asking for.

The clause Meta pulled in two days

Meta’s updated commercial terms, due to take effect on October 30, cover anyone using Meta products for business, including companies that never buy an ad but run a Facebook Page. The text included a clause saying Meta could use content from a business account’s domains and pages to develop and train its AI products. Nieman Lab reported on it on October 15, and three legal experts said the language could support scraping news sites. Meta spokesperson Andy Stone wrote on X the next day that it was “not about scraping news sites.” By October 17, TechCrunch and The Verge were reporting that Meta had removed the clause. Meta said it “does not change how Meta uses web crawlers.”

The lesson here is less about Meta than about the rest of us. Running a Facebook Page means being party to a contract. When that contract changes, nobody calls to tell you. This time, journalists noticed.

Google Ads hands back some budget control

At a time when automatic moves to AI Max dominate the conversation, Google took a step the other way on October 14. In Search, Shopping, Performance Max and Demand Gen campaigns, you will be able to mark channels as high or low priority. Budget goes to high-priority channels first, and you set the maximum share of daily budget that low-priority channels may use. Google calls this a “best-effort” limit, which is not a guarantee. The controls roll out globally over the coming months.

One detail is easy to miss. In February 2027, the current spend setting for Search campaigns with the Display Network turned on goes away, and spend may shift. Google suggests that advertisers who want to keep today’s setup mark the Display Network as low priority with a 50 percent budget share.

What the week leaves behind

The agent story I’ve followed for three weeks hit its first real limit. However capable the agent, it is the store that opens the door. Those opening it and those closing it are protecting the same thing: their own relationship with the customer. That holds for a small business too. Even when your customer arrives through an agent, it is worth deciding now how you keep that relationship yours.

What I’ll be watching:

• The final text of Meta’s commercial terms when they take effect on October 30.
• Turkey’s under-15 rules going live on November 1.
• Whether Universal Cart and Shopify’s agent shopping leave the US.