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How to Move Google Antigravity Chat History and Workspaces Between macOS Machines

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Migrate workspaces:

Google Antigravity is a powerhouse AI-driven IDE, but even powerhouses need to move sometimes. Whether you’re upgrading your gear or just shifting your development setup, ensuring that your chat history and workspaces transition seamlessly is critical.

This guide provides a definitive solution for migrating your Google Antigravity setup between macOS machines, ensuring that your context and agents stay right where you left them.

Summary

Goal: Migrate Google Antigravity session data, chat history, and workspace links between two macOS devices. Key Folders: ~/.gemini, ~/.antigravity, and ~/Library/Application Support/Antigravity/User/. Process: Manual folder transfer followed by an agent-assisted re-linking prompt if metadata isn’t automatically detected. Keywords: Google Antigravity migration, transfer chat history, macOS AI IDE, Antigravity agent re-link.

Step 1: Locate and Copy the Essential Folders

To maintain absolute continuity, you must copy three specific directories from your original Mac to the new one. Google Antigravity stores different layers of metadata, conversation logs, and environment configurations in these paths.

1. The Conversations & Brain Folder (~/.gemini)

This is the «memory» of your installation. It contains the .pb (Protocol Buffer) files for your conversations and the background brain data.

  • Path: /Users/[YourUsername]/.gemini

2. The Configuration Folder (~/.antigravity)

This folder houses your primary IDE settings and specific Antigravity configurations.

  • Path: /Users/[YourUsername]/.antigravity

IMPORTANT: If your new Mac has a different architecture (e.g., you’re switching from Intel i7 to Apple Silicon M5), do not copy the .antigravity/extensions folder.

3. The User State & Workspace Storage Folder

This directory stores the specific state of your workspaces, including the links between conversation IDs and file system paths.

  • Path: /Users/[YourUsername]/Library/Application Support/Antigravity/User/

Step 2: Transfer to the New MacBook

  1. On the source Mac, compress these folders into a ZIP file or transfer them via an external drive/cloud service.
  2. On the target Mac, ensure Google Antigravity is installed but not running.
  3. Paste the folders into the exact corresponding locations on the new machine.

    NOTE: If the target machine already has these folders (from a fresh install), you may need to overwrite them to ensure your old history is restored.

Step 3: Troubleshooting with the Agent «Re-link» Prompt

In some cases, even after copying the folders, the IDE might not automatically display your old history because the internal workspace UUIDs or absolute file paths might have subtle differences.

If your history doesn’t appear, do not panic. Simply open any workspace and send the following prompt to the Antigravity agent:

The Re-link Prompt

«I’ve just migrated my Antigravity setup from another Mac. I’ve copied the .gemini, .antigravity, and Application Support folders. Could you please scan for my existing local conversation files and re-link them to my current workspaces so I can access my full chat history?»

The agent will then scan your local .gemini/conversations directory and attempt to re-associate the conversation logs with your current folder structure.

Conclusion

Moving your workspace doesn’t have to mean starting over. By manually migrating the core configuration directories and using a simple re-linking prompt, you can keep your AI pair programmer’s memory intact across any number of devices.

Happy Coding!