On September 23, 2026, Reuters reported that Amazon has introduced a new agentic AI service for third-party sellers on its marketplace, called workflows. Unlike previous chat-style assistants, this service runs continuously and proactively watches over a seller's store — for example, sending an alert if ratings suddenly decline, or monitoring price changes for specific products according to rules the seller sets.
What it actually does
According to Amazon, sellers can give the agent long-term instructions in natural language, and the service keeps executing them in the background. The Seller Assistant platform also stores a profile for each seller to deliver tailored recommendations, covering the three headaches of small and mid-sized sellers: item pricing, promotions, and inventory management. In other words, it doesn't just answer questions — it takes over the repetitive grind of watching the store.
Also notable is the plug-in mechanism: the seller agent can connect to AI tools sellers already use. At launch it integrates with Amazon's own Quick and Anthropic's Claude services. Quick is Amazon's agent-building tool, while Claude is a third-party large model — Amazon chose open access instead of locking the ecosystem to its own models. For sellers already using Claude for copywriting or customer service, that means bringing the capability into store operations without switching toolchains.
Free, optional, and data self-determination
Price and access are the most striking part of this launch: the service is free for all sellers and optional. Mary Beth Westmoreland, Amazon's vice president of worldwide selling experience, said sellers can decide for themselves how much personal data they share with the new agentic service. Free plus optional plus data self-determination, taken together, is clearly aimed at easing small sellers' fear of having their stores taken over by the platform's AI.
Why now
The backdrop is that marketplace competition has shifted from traffic to operational efficiency. Third-party sellers account for more than half of Amazon's platform sales, yet small and mid-sized sellers are precisely the ones short on hands: one person juggles product selection, pricing, ads, customer service, and inventory. Work that used to run on experience and late nights is now having its most mechanical parts automated by agents. For Amazon, the more efficient its sellers operate, the stronger the platform's product breadth and price competitiveness — a win-win equation.
Two groups feel the biggest impact: small sellers and solo sellers who can't afford an operations team — the AI agent is effectively an assistant that draws no salary — and mature sellers already using AI tools, for whom the plug-in mechanism lets them migrate existing workflows directly. Flip it around: when every seller can auto-adjust prices and auto-watch ratings with AI, the competitive bar rises across the board, and knowing how to use agents may soon turn from a bonus into table stakes.
The concerns, too
To run continuously, the agent must continuously read store data: ratings, prices, inventory, promotion performance. Amazon says sellers decide how much data to share, but details like what's on by default and whether turning things off degrades functionality haven't been spelled out. For sellers, a real question looms: as core business decisions like pricing and promotions grow dependent on the platform's agent, will the store's bargaining power and data independence be slowly diluted? Free things often have their price marked somewhere else.
How to read it
E-commerce agents are moving from novelty feature to infrastructure. The key to Amazon's move isn't technological leadership but driving the barrier to zero: free, optional, and open to external tools. Once the largest e-commerce platform starts educating the market this way, independent storefronts and rival platforms following suit is only a matter of time. For sellers, the question is no longer whether to use AI, but which parts of the business to confidently hand to agents — and which must stay in human hands.
