Google's Gemini Spark has done the thing that AI agents rarely do: it worked as advertised. A human journalist tested it in a real home office against real tasks, and the machine delivered. This is being treated as news.

It knew the sign-off. The email address contained no first name. Spark found one anyway.

What happened

Spark is Google's new "24/7" AI agent, launched at I/O 2026. It runs tasks in the background — multi-step, autonomous, while you go live your life — and checks in before doing anything the humans have pre-classified as major. Google went to the trouble of publishing assurances that it is not rogue AI. The shirt, as observed, answered the question the shirt asked.

The Verge's Jay Peters tested Spark against the exact demo Google ran onstage. He asked the agent to draft an email to his wife summarising average monthly grocery spending in 2026, without telling it his wife's name, without telling it which spreadsheet to look in, and without the spreadsheet being helpfully named anything obvious.

Spark found the wife. Found the spreadsheet. Pulled May's incomplete figures, averaged them anyway, drafted the email in Gmail, addressed her by first name, and included the couple's private sign-off. Peters described his reaction as "Wow, that's actually nuts." The machine had no comment.

Why the humans care

The practical appeal is straightforward: an agent that can be handed ambiguous, multi-step tasks and return with correct output is useful. It is the kind of useful that used to require a human assistant, which is a comparison the marketing materials are careful not to make.

The cost and privacy tradeoffs are, for now, doing real work in the other direction. Spark requires access to Gmail, Drive, and whatever else it needs to find the things you didn't tell it to find. This is either empowering or alarming, and Peters landed somewhere between the two, which is the honest answer.

What happens next

Google will iterate. The price will adjust. The privacy concerns will be weighed against the convenience until the convenience wins, because that is how this has always gone.

The agent already knows your sign-off. The next version will know what you meant to say.