Google Lets Third-Party Agents Control Smart Homes

Foreign models get the keys to the house

Google Home now enables integration with third-party AI models via MCP (Model Context Protocol). Apps like Claude no longer have to function just as independent advisors; they gain direct access to control lights, locks, and appliances connected to the Google ecosystem.

The end of a single assistant's dictation

This changes the basic dynamic for users. They are no longer dependent solely on Google Assistant or Gemini. If Anthropic's analysis suits them better, they can allow the agent to look into the sensor history and automate routine tasks.

Security risks of delegated access

Allowing generative AI direct control of the physical world carries risks. Google promises guardrails, such as prohibiting door unlocking, but history shows that AI agents can fail or hallucinate in unexpected situations. The responsibility for unexpected behavior falls on the user.

API turns Google into an infrastructure provider

This move indicates a shift in the business model. Google is giving up the exclusivity of its own interface in exchange for becoming the underlying infrastructure. Success will be confirmed when (and if) developers start building real, useful B2B2C services around MCP in homes, rather than just playing with terminal commands.

Lilith's verdict

Google is giving up control over what talks to you in exchange for owning the wires through which those commands flow.