My tennis buddy has an AI agent. It's changing his life.

The emails organizing our weekly games began arriving with a new sign-off.

"See you on the court! Nathan's agent."

My tennis buddy Nathan Czubaj has organized this league for years. It's a lot of work involving spreadsheets, scheduling, endless reminders, and chasing players who forget to confirm whether they're coming.

Now he's outsourced much of that work to an AI agent.

Naturally, when we gathered on court, everyone wanted to know what Nathan was using. This is Silicon Valley, after all.

We can't even play tennis without talking about AI.

Nathan explained that he'd started using OpenAI's Dots, a…