The ChatGPT app can't touch your phone. But its Codex mode can drive a machine you pair with it, and that machine can be the phone itself. This post shows how to set that up with Shelly , an open-source Android terminal, so ChatGPT can run commands and phone-app tasks on your device. Every phone action waits for your approval on the phone.

Everything here runs on the phone. No PC, no Termux, no root.

What you need

An arm64 Android phone . I develop on a Galaxy Z Fold6; other devices aren't verified yet.

A ChatGPT account with access to Codex in the ChatGPT app.

Shelly (GPL-3.0): APK from GitHub Releases .

For tasks inside other apps (Spotify, Maps…): the ClosePaw Shelly build from its releases page , plus Shizuku . Terminal-only tasks don't need these.

Step 1: Install Shelly and sign in to Codex

Install the APK and allow "All files access" on first launch.…