Anthropic Builds Out the Agent Stack as Retail Media Keeps Climbing

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Welcome to P3 Media’s AI Commerce Brief, your daily update on the AI and commerce stories shaping how companies build, sell, and grow. It’s Friday, August 21. Let’s get into it.

Anthropic is moving more of the production agent stack into Claude Platform.

In a post dated August 20, the company said computer use, the Skills API, and the Files API are generally available. It also introduced browser use, which combines screenshots with page structure so an agent can target specific fields and buttons.

Anthropic says computer use can now take several actions per turn. The company also says the Files API includes automatic expiration, rate limits five times higher, and 1 terabyte of storage per organization.

For developers, the announcement puts computer use, browser use, reusable skills, and file storage in one platform. That may reduce how many separate pieces teams need to assemble. For risk teams, the key question is how browser actions, permissions, and file handling are governed in production.

Watch for customer evidence beyond the examples in Anthropic’s launch post, especially on reliability, auditability, and cost.

Walmart’s second-quarter results highlight the growth of digital commerce and advertising inside the retailer’s business.

The company reported global ecommerce growth of 23 percent. Walmart US ecommerce grew 24 percent, and global advertising grew 38 percent. Walmart Connect in the US grew 43 percent excluding Vizio.

Walmart also said marketplace net sales grew more than 50 percent in the quarter, while nearly half of marketplace business flowed through fulfillment services.

For commerce operators, the combination matters. Marketplace, fulfillment, advertising, and membership give Walmart multiple ways to earn revenue around a retail transaction.

These are company-reported figures. The next question is whether that mix can keep expanding as comparisons get harder.

Target’s second quarter adds another view of the same shift.

Target reported digital comparable sales growth of 8.7 percent, led by more than 25 percent growth in same-day delivery. Non-merchandise sales grew over 20 percent, with strength in Roundel advertising, Target Circle 360 memberships, and the Target Plus marketplace.

For operators, those figures make delivery, media, memberships, and marketplaces worth tracking separately from merchandise sales.

Target also said its earnings included $994 million of pretax tariff-refund benefits. That means investors should distinguish the retailer’s operating momentum from the refund benefit when reading the quarter.

Now to advertising for AI agents.

Digiday reported on August 20 that the market is still far from a common standard for measuring and attributing ads served to agents. The publication described early approaches such as referral codes and text ads inserted when AI crawlers access publisher pages. It said most activity remains at proof-of-concept stage.

For marketers, that is a reason to treat “AI visibility” as an experimental channel. Ask vendors what event is being measured, who controls the attribution window, whether a human ever sees the placement, and how the result connects to a sale.

The opportunity may be real. The measurement layer is not settled.

In the primary and top-tier sources reviewed for this edition, no new international model release met our threshold for both recency and direct support. Today’s competitive signal is less about a fresh benchmark race and more about agents moving closer to production.

Three things to watch. First, whether Anthropic’s new tools reduce deployment friction while meeting enterprise governance requirements. Second, whether Walmart and Target can keep growing digital businesses around retail. Third, whether agent-ad startups can produce transparent measurement standards before meaningful budgets move in.

That’s your AI Commerce Brief for today. Thanks for listening.

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