Antigravity Fixer

Diagnose and fix Google Antigravity & 9router eligibility errors in seconds.

Eligibility check failed: Your current account is not eligible for Antigravity.

There was an unexpected issue setting up your account.
Your current account is not eligible for gemini code assist for individuals at this time.

403 Forbidden — VALIDATION_REQUIRED

Sound familiar? This tool fixes it.

Resolves: 9router 403 errors · Antigravity account not eligible · Gemini Code Assist login failures · Phone number verification stuck on smartphone · Stale OAuth credentials

Also works for 9router and other providers that use Google Antigravity / Gemini Code Assist as their backend.

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How It Works

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Prerequisites · Install · Usage · AI Agent Guide · Uninstallation · Troubleshooting

An open-source CLI tool that diagnoses and fixes the "Your current account is not eligible for Antigravity" and "not eligible for Gemini Code Assist for individuals" errors that show up when logging into Google Antigravity (IDE or CLI), 9router, or any provider built on top of the same backend.

Designed to be used by humans and AI coding agents — clone, run, done.

Before running this tool, ensure you have:

• Google Antigravity installed — either the CLI (agy) or Antigravity Desktop App / IDE.
• Python 3.10+ installed on your system.

git clone https://github.com/fulldiagnose/antigravity-fixer.git
cd antigravity-fixer
pip install -r requirements.txt

Dependencies:

• camoufox — stealth headless browser automation
• rich — terminal UI, progress indicators & formatting

Run the interactive fixer:

python fix.py

Follow the guided steps on screen:

1. Choose Language: Select 🇮🇩 Bahasa Indonesia or 🇺🇸 English.
2. Enter Google Account: Provide your @gmail.com email & password (used in-memory only, never saved).
3. Automated Cleanup: Kills stuck processes, removes credentials, and clears cache across:
   • Antigravity CLI (~/.gemini/antigravity*, ~/.antigravity)
   • Antigravity Desktop App & IDE (AppData / Application Support / .config)
   • Windows Credential Manager / Keychain / Secret Service
4. Revoke App Permission: Automatically revokes stuck OAuth connections in your Google Account.
5. Selfie Verification: Automatically launches an Incognito browser to myaccount.google.com/age-verification. Complete the selfie check and press Enter.
6. Automatic Antigravity CLI Login Test:
   • Immediately after selfie verification, a new terminal opens and runs agy.
   • Select option 1 in the Antigravity CLI login menu.
   • Let agy open the official Google sign-in page automatically—this fixer does not open a separate OAuth URL.
   • Sign in with the Google account that just completed selfie verification.
   • Google displays an authorization code (usually starts with 4/0A...).
   • Copy the code and paste it into the waiting agy prompt:

     Or, paste the authorization code here and press Enter:
     

   • Press ENTER to complete sign-in.

If you only want to purge local cache, credentials, and background processes without revoking:

python fix.py --clean-only

This tool is designed to be called by AI coding agents (Hermes, Aider, Cursor, Codex, etc).

Recommended workflow:

Step 1 → Verify Google Account age verification:
         Instruct user to complete selfie check at https://myaccount.google.com/age-verification

Step 2 → python fix.py --clean-only
         Purge stale credentials, CLI cache, and Desktop App/IDE state

Step 3 → agy
         Select option 1, let agy open Google sign-in, then copy the 4/0A... authorization code from the browser and paste it into agy

python fix.py --clean-only

antigravity-fixer/
├── fix.py                       # CLI entry point
├── requirements.txt             # Dependencies
├── LICENSE                      # MIT
└── antigravity_fixer/
    ├── __init__.py
    ├── checker.py               # Account diagnosis (age, country, subscription)
    ├── cleaner.py               # Credential & cache cleanup
    ├── browser.py               # OAuth revoke & re-auth
    └── constants.py             # Supported countries, URLs, paths

To completely uninstall Antigravity Fixer and all its dependencies, just run:

python fix.py --uninstall

Or manually:

pip uninstall -r requirements.txt -y

Then simply delete the antigravity-fixer folder. Done!

• Passwords are only prompted at runtime via getpass — never written to disk or logs
• Browser sessions are ephemeral (headless, no persistent state)
• This tool does not send data to any external server — all operations are local or directed at official Google account pages
• Source code is open — audit it yourself if in doubt

Antigravity is available in 190+ countries including Indonesia, Malaysia, Singapore, and more.
Full list: constants.py or official Google docs.

MIT — free to use, modify, and distribute.