What is gravity-bridge?

GravityBridge is a tool that lets you control an AI coding assistant running on your laptop from your phone's web browser. The assistant it connects to is Google's Antigravity 2.0, a local AI agent made by Google DeepMind that can read and write files, run terminal commands, and manage tasks directly on your computer. Normally you can only reach that assistant on the laptop itself, since it only listens on localhost. GravityBridge fixes that by running a small local web server that forwards your phone's requests to it securely over your own Wi-Fi network. Once set up, opening your laptop's address in a phone browser shows a chat window where you can type instructions to the AI agent, such as asking it to run a git status command or check whether your tests passed, and watch the replies appear in real time. The page also includes a file browser for your phone's storage, using Android Debug Bridge (ADB), so you can select photos or files on your phone and pull them straight to your laptop with one tap, useful for quickly sending a bug screenshot to the AI to fix. The project is aimed at developers who already use Antigravity 2.0 and want to keep coding or checking on background tasks while away from their desk, for example from a couch or bed. Everything runs locally between your own devices rather than through any cloud service, and access is protected by a PIN you set yourself, with basic protection against repeated failed login attempts. It is built in Python and currently targets Windows as the desktop platform, requiring both a laptop running Antigravity 2.0 and a phone connected over the same network or via ADB pairing. The project is released under the MIT license.