Google Antigravity Interface — Editor Layout, Agent Manager, Built-in Browser

Google Antigravity IDE interface with editor panel on left, agent manager panel on right, and built-in browser preview at bottom in a clean dark theme

When I first opened Google Antigravity, I had no idea what I was looking at. As a network engineer who had never used a code editor before, the layout felt completely foreign. But once I understood what each panel was for, everything clicked into place. This post walks through the three core components of Antigravity — the editor, the agent manager, and the built-in browser — one by one, in plain terms.

▶ Table of Contents (click to expand)
  1. Editor Layout — The Space Where You View and Edit Code
  2. Agent Manager — The Core Panel for Talking to AI
  3. Built-in Browser — Real-Time Preview That Shows Code Changes Instantly
  4. Q&A — Frequently Asked Questions
  5. Conclusion

Editor Layout — The Space Where You View and Edit Code

Antigravity's editor shares the same basic structure as a typical code editor. It consists of the following elements.

  • File Explorer — Browse your project's file structure in the left sidebar
  • Code Editing Area — View and edit actual code in the center panel
  • Tab-Based File Switching — Open multiple files at once and switch between them
  • Real-Time AI Edit Display — Watch the AI modify code in real time as it works

How It Differs from a Regular Editor

The biggest difference is how you collaborate with AI. The AI explains which file it opened, which lines it changed, and why — as it goes. You can also edit the code directly yourself, and the AI incorporates your changes.

Change history is preserved too. You can undo anything the AI modified, and restore the project to a specific point in time.


Agent Manager — The Core Panel for Talking to AI and Giving Instructions

The Agent Manager is the most important panel in Antigravity. Type what you want in natural language and the AI interprets it and gets to work. You can open it by clicking the "Open Agent Manager" button in the top right, or with the shortcut Cmd+E.

Basic Usage

Examples of instructions you can give:

  • "Create a login page"
  • "Fix the error occurring in this function"
  • "Add a component that displays a user list as a table"

How the AI Handles Tasks

When the AI receives an instruction, it works through the following steps.

  1. Presents a plan — shows which files it will create or modify first
  2. Asks for confirmation — you approve the plan or request a change in direction
  3. Executes the work — creates and edits files in the editor
  4. Reports results — summarizes what was completed and asks for confirmation

Multi-Agent Capability

Complex tasks can be handled by multiple agents running simultaneously. For example, one agent might work on a frontend component while another handles API integration in parallel. Conversation history is also preserved, so you can revisit previous work at any time.


Built-in Browser — Real-Time Preview That Shows Code Changes Instantly

The built-in browser lets you see the result of your code running directly inside Antigravity — without switching to a separate browser window.

How Real-Time Preview Works

Traditional Workflow Antigravity Built-in Browser
Edit code → Save → Switch to browser → Manual refresh The agent directly controls the browser to verify results and iterate
Separate browser window required Browser panel built into the IDE (Chrome extension required)
Developer manually tests responsive layouts Agent tests responsive behavior directly through the browser

What You Can Do With It

  • The agent directly tests functionality — clicking buttons, filling in forms
  • The agent verifies responsive behavior through the browser
  • When an issue is found, the agent fixes the code and re-checks in the browser immediately
  • A Chrome extension must be installed first; after that, the IDE connects automatically

Q&A — Frequently Asked Questions

Q. How is the Antigravity editor different from VS Code?

VS Code is a code editor focused on editing. Antigravity is an environment built for real-time collaboration with an AI agent. The key difference is that the AI opens files, makes changes, and explains what it's doing as it goes.

Q. What language should I use when giving instructions in the Agent Manager?

Both English and other languages work. The more specific you are about what you want, the more accurately the AI will execute it. You don't need technical jargon — everyday language is fine.

Q. Can I browse the internet in the built-in browser?

No. The built-in browser is for viewing the running output of your own project. It is optimized for previewing apps under development, not for general web browsing.

Q. Is the multi-agent feature available on the free plan?

Pricing for the multi-agent feature may vary depending on usage. The basic Agent Manager is available on the free plan, but complex parallel workloads are recommended for paid plans.


Conclusion

The three core components of Google Antigravity are connected to each other. You give an instruction in the Agent Manager, the code gets modified in the editor, and you check the result immediately in the built-in browser. The key design of Antigravity is that this flow stays unbroken inside a single environment. Getting familiar with what each panel does at the start makes everything that follows feel natural. The next post walks through the actual process of building your first app in Antigravity.

Was there anything about the Antigravity interface that felt unfamiliar when you first opened it? Let us know in the comments.

Sources: Google Antigravity Official YouTube — Learn the basics of Google Antigravity / codebasics — Google Antigravity Tutorial for Beginners

👤 Author: 20eung (Network Engineer / Self-taught AI coding tool experimenter)

🔗 GitHub Portfolio | isthe.info Blog

📅 First published: 2026-05-16 | 🔄 Last updated: 2026-05-25

📝 Changelog: Verified against official YouTube sources — built-in browser description updated, Agent Manager shortcut added