University of Kwazulu-Natal

Google Antigravity The Ultimate Guide To Agent First Development In

Bonisiwe Shabane
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google antigravity the ultimate guide to agent first development in

The AI coding landscape just got turned upside down. Google's Antigravity isn't just another code completion tool—it's a paradigm shift in how we think about software development. Launched alongside Gemini 3 in November 2025, this free agentic development platform is already making waves among developers worldwide. In this comprehensive guide, I'll walk you through everything you need to know about Google Antigravity: from its revolutionary agent-first architecture to advanced customization techniques that will supercharge your development workflow. Google Antigravity is an agentic development platform that evolves the traditional IDE into an agent-first experience. Unlike standard coding assistants that just autocomplete lines, Antigravity provides a "Mission Control" for managing autonomous agents that can plan, code, and even browse the web to help you build.

"We want Antigravity to be your home base for the era of agents. It treats learning as a core primitive, allowing agents to save useful context and code snippets to a knowledge base to improve future tasks." — Google Developers Blog Antigravity is designed as an "agent-first" platform. It presupposes that the AI is not just a tool for writing code but an autonomous actor capable of: In this codelab, you will learn about Google Antigravity (referred as Antigravity for the rest of the document), an agentic development platform, evolving the IDE into the agent-first era. Unlike standard coding assistants that just autocomplete lines, Antigravity provides a "Mission Control" for managing autonomous agents that can plan, code, and even browse the web to help you build.

Antigravity is designed as an agent-first platform. It presupposes that the AI is not just a tool for writing code but an autonomous actor capable of planning, executing, validating, and iterating on complex engineering tasks with minimal human intervention. Currently Antigravity is available as a preview for personal Gmail accounts. It comes with a free quota to use premier models. Antigravity needs to be locally installed on your system. The product is available on Mac, Windows and specific Linux distributions.

In addition to your own machine, you would need the following: Imagine telling an AI "build me a flight booking app" and watching it autonomously code, test in the browser, and deploy – all without you writing a single line. That's Google Antigravity – the revolutionary agentic development platform launched November 18, 2025, alongside Gemini 3.​ Google Antigravity is an “agent-first” IDE that can run autonomous agents to plan, change, test, and verify code across your editor, terminal, and browser. This blog explains what it is, why it exists, how it helps developers, where to download it, what competitors do, and practical limits and safety notes — all written for beginners. I’ll keep each section short and easy to follow.

I personally feel Antigravity compete with IBM Bob. Traditional AI coding tools (Copilot, Cursor) are "prompt-first" – you ask, AI suggests code snippets, you fix errors, repeat. This works for simple tasks but fails on complex projects. Google saw the gap: Developers need AI that handles end-to-end workflows – planning, coding, testing, debugging, deploying – autonomously. Google Antigravity is Google’s free AI-powered IDE that lets developers build software using autonomous agents instead of writing code line by line. Powered by Gemini 3 Pro, it features an Agent Manager for orchestrating tasks, a built-in browser for testing, and support for multi-agent collaboration.

This guide shows you how to install Google Antigravity, set up the Agent Manager, and build your first project using agent-driven development. Released in November 2025, Google Antigravity represents a shift from traditional manual coding to an agentic development platform where AI handles complete workflows. Unlike traditional coding assistants that only provide autocomplete suggestions, Google Antigravity enables true agent-first development where autonomous agents can plan entire projects, write code across multiple files, test applications, and debug issues automatically. The platform is built on a foundation similar to Visual Studio Code, so the interface feels familiar, but Antigravity introduces several new components, like: Multiple agents can collaborate on a single task. For example, one agent may generate code while another tests functionality or performs refactoring.

This model is optimized for code reasoning, comprehending large contexts, and multi-step planning. All agentic operations rely heavily on it. Here’s more detail on the other models it’s using as of now (November 20, 2025). Google Antigravity isn’t just another code editor with an AI sidebar. Launched on November 18, 2025, it’s an agent-first development platform that fundamentally changes your role from a coder to an architect and manager of autonomous AI agents. This is how Google see the collaboration between software engineers and AI, in all aspects: Army of Agents, and humans as an architect of that.

Thanks for reading Code Meet AI: Stay relevant in the AI era! Subscribe for free to receive new posts and support my work. Getting started is straightforward. The platform is currently in a free public preview for personal Gmail accounts . Download: Go to the official Antigravity download page and get the installer for your operating system (Windows, macOS, or Linux) . Development is lifting off.

The tools of yesterday focused on helping you write code faster; the tools of tomorrow need to help you orchestrate it. Today, we’re introducing Google Antigravity, a new agentic development platform designed to help you operate at a higher, task-oriented level. Antigravity isn't just an editor—it's a development platform that combines a familiar, AI-powered coding experience with a new agent-first interface. This allows you to deploy agents that autonomously plan, execute, and verify complex tasks across your editor, terminal, and browser. We built Antigravity because we believe agents shouldn't just be chatbots in a sidebar; they should have their own dedicated space to work. The platform introduces two distinct ways to interact with your code:

Antigravity allows you to offload end-to-end tasks that previously required constant context switching. Here are three ways you can apply it to your daily development: Delegating work to an agent requires trust, but scrolling through raw tool calls is tedious. Antigravity solves this by having agents generate Artifacts—tangible deliverables like task lists, implementation plans, screenshots, and browser recordings.

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