That AI agent offering to handle your shopping or hunt for better insurance deals sounds like a dream come true. But before you hand over the keys to your digital wallet, you might want to hear what the UK’s Competition and Markets Authority has to say about the potential pitfalls.
The government published a report in March 2026 examining so-called “agentic AI,” systems that don’t just answer questions but actually take actions on your behalf. While this technology promises to save you time and money, the CMA warns that without careful design, these autonomous helpers could just as easily lead to errors or manipulate your choices. The bottom line is that consumer law applies whether a human or an algorithm makes the decision.
The many ways an AI agent could let you down
The CMA analysis points to several distinct risks that become more serious as AI gains autonomy. For starters, your agent might not be the faithful servant you expect it to be. It could steer you toward products that are more profitable for the company behind it rather than the best fit for you.
Errors present another real concern. Large language models sometimes hallucinate, and if an agent acts on made-up information, the consequences could get expensive.
Bias creates additional headaches. An agent learning from skewed data can produce unfair outcomes that are tough for you to challenge. And over time, you might stop questioning it entirely, falling into a pattern of over-reliance where you simply miss its mistakes.
The hidden costs of handing over control
Beyond individual agent failures, the report flags broader market risks that affect everyone. Algorithmic pricing is already common, but agentic AI could intensify coordinated outcomes. When multiple businesses deploy autonomous pricing agents, they might inadvertently dampen competition, leaving you with fewer real choices and potentially higher prices.
An agent confined to a closed ecosystem makes switching providers genuinely difficult. Moving your data, preferences, or the agent’s memory to a new service becomes a hassle. That lack of interoperability reduces your choices over time and entrenches big players, which is the opposite of what you want from a tool meant to shop around.
Data privacy adds another important layer. These systems need access to your personal information and delegated authority to act on your behalf.
What happens next with your AI helper
The CMA isn’t trying to kill this technology. Instead, it’s making the case that trust is critical infrastructure for widespread adoption. The report stresses that businesses remain fully responsible for outcomes, even when an AI agent makes the call.
The UK also points to wider fixes that could make agentic AI safer for everyone. Smart data schemes, secure digital identity, and strong interoperability standards would let you switch agents easily and keep control of your information. Without those safeguards, you risk getting stuck with a helper that serves the company before it serves you.
For now, the takeaway is refreshingly simple. Agentic AI could save you time and money, but a little skepticism goes a long way. Look for services that are transparent about their limitations, ask for confirmation before big moves, and let you walk away with your data. The technology is moving fast, and the rules are finally catching up. Your job is to make sure any agent you hire works for you, not the other way around.
