Someone asked Claude Code to "buy me a Waymo to Delah Coffee from my current location." It picked up the iPhone and did it. phone-harness lets Claude Code, Codex or any agent use your real phone. It scrolls, taps, types and reads the screen like you would. No jailbreak, no Xcode, nothing installed on the phone. On iPhone it works through the Mac's iPhone Mirroring window (macOS 15+, iOS 18+). On Android it uses adb, from Mac, Windows or Linux. To set it up, send the setup prompt from the README to your agent, and it walks you through the rest. MIT. Watch what it does the first few times before you let it near anything that spends money.