Browser Agent

Overview

Antigravity includes a built-in browser subagent that can autonomously interact with web applications. The main agent delegates browser tasks to it — this skill governs when and how to do that correctly.

The browser agent is NOT a general-purpose web search tool. It is a UI interaction and verification tool. Use it when you need to act on a web page, not just read information from it.

Prerequisites

Before any browser task, verify:

1. Chrome extension installed — if not yet installed:
   • Look for the Chrome icon in Agent Manager (bottom left) or Editor (top right)
   • Click it → follow the setup prompt → install from Chrome Web Store → grant permissions
   • Without the extension, the browser agent cannot interact with pages