Agentic AI Learning Portal

Appearance

Day 3 -- Antigravity: IDE & Platform ​

Antigravity is Google's agentic development platform, first shipped in November 2025 and expanded significantly with version 2.0 at Google I/O 2026. Where Days 1 and 2 covered Gemini CLI, the lightweight terminal agent, Day 3 moves up a level: Antigravity is a full development platform with an IDE, an agent manager, projects, artifacts, and a browser-in-the-loop that lets agents verify their own work. Today is about understanding the platform surface and learning to work with it effectively.

What you'll have by the end of today ​

  • A working installation of the Antigravity IDE and an understanding of how it differs from a traditional editor
  • The ability to use the agent manager to orchestrate multiple agents on a single codebase
  • Projects set up to group conversations and scope permissions across multiple workspaces
  • Experience reviewing and providing feedback on agent-generated Artifacts
  • Hands-on use of browser-in-the-loop to verify frontend changes

Before you start ​

Before today's lessons, download and install Antigravity. The IDE is a standalone desktop application available for macOS, Windows, and Linux. It runs independently, it is not a VS Code extension, and you do not need VS Code installed to use it. Authentication uses your Google account.

Lessons ​

  1. What Is Antigravity -- the platform story: launch history, the three surfaces (IDE, CLI, SDK), free tier, enterprise tier, and where it fits alongside Gemini CLI
  2. The IDE & Agent Manager -- the editor surface (VS Code fork) and the agent manager: how to spawn, monitor, and direct multiple agents working in parallel
  3. Projects & Conversations -- the Projects primitive for scoping permissions, grouping conversations, and operating across multiple workspaces from one agent session
  4. Artifacts & Codebase Understanding -- how agents communicate results through Artifacts (plans, diffs, screenshots, browser recordings), the feedback loop, and the deep codebase understanding engine
  5. Browser-in-the-Loop -- agents that launch and control a real browser to verify frontend work, capture screenshots, and simulate user interactions

Next: Day 4 -- Antigravity: CLI, SDK & Agents

Resource links: