Google Antigravity + Claude Code: the combo that builds apps for you

I built a complete AI Writing Studio app without writing a single line of code — using Google Antigravity and Claude Code.



In this tutorial, I'll show you exactly how to:

→ Set up Google Antigravity (Google's new agentic IDE)

→ Use Gemini 3 to architect and plan your app

→ Install Claude Code for the actual coding

→ Build a fully functional React app with 4 AI-powered features



This workflow is perfect for vibe coders, no-code builders, and anyone who wants to build apps faster using AI agents.



⏱️ TIMESTAMPS:

00:22 - Download & Setup

00:40 - Understanding the Interface

02:30 - Creating Your Project

02:44 - The Master Prompt (Gemini 3)

03:49 - Watching Gemini Architect Your App

04:50 - Installing Claude Code

07:16 - Initializing Claude

09:26 - Building the App

09:37 - App Demo

12:37 - free api key and terminal use



🔗 LINKS:

→ Google Antigravity: https://antigravity.google.com

→ Claude Code Install: code.claude.com/docs/en/overview

→ Claude AI: https://claude.ai



📋 MASTER PROMPT (copy this):

You are a lead developer. I have a project roadmap for an architecture kick-off. I want to build an AI Writing Assistant Studio—a React app with 4 main features: 1) Text Improver - Rewrite text in professional, casual, persuasive, and grammar-fix styles 2) Content Generator - Generate blog posts, emails, and social media content 3) Smart Analyzer - Analyze readability, tone, and extract key topics 4) Format Converter - Convert between blog, email, notes, and technical formats. The app should use React and Tailwind CSS. Please create: Complete project structure, detailed implementation roadmap, technical specifications for each feature, step-by-step development plan. IMPORTANT: Structure this as a roadmap for an agent to follow. Do NOT write any code yet—just plan the architecture.



💬 Drop a comment: What app would YOU build with this workflow?