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Prerequisites

Before installing, make sure you have:
  • Google Antigravity IDE installed and working
  • git available on your PATH
  • An internet connection (the installer clones from GitHub)

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Install command

Run this single command in your terminal: 
curl -fsSL https://raw.githubusercontent.com/derHaken/SuperAntigravity/main/install.sh | bash
After the script completes, restart Antigravity. Skills, workflows, and agents load automatically — no configuration required.

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What happens during install

1

Clone the repository

The installer creates a temporary directory and does a shallow clone of the main branch from https://github.com/derHaken/SuperAntigravity. The temporary directory is deleted automatically when the script exits.
2

Install skills

19 skill directories are copied to ~/.gemini/antigravity/skills/. Each skill contains a SKILL.md file that Antigravity reads to trigger the right behavior automatically.
3

Install workflows

16 workflow files are copied to ~/.gemini/antigravity/global_workflows/. These power the slash commands (/brainstorm, /plan, /implement, /review, /git) and other explicit workflow controls.
4

Install agents

8 specialist agent definitions are copied to ~/.gemini/antigravity/agents/. Agents cover code review, architecture, security, research, mentoring, and more.
5

Bootstrap GEMINI.md

The installer appends a # SuperAntigravity Skills block to ~/.gemini/GEMINI.md, creating the file if it does not already exist. This block registers SuperAntigravity with Antigravity’s rules system.

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Success output

When the install completes successfully, your terminal will show output similar to: 
[superantigravity] Installing SuperAntigravity...
[superantigravity] Downloading...
[superantigravity] Installing skills...
  ✓ brainstorming
  ✓ writing-plans
  ...
[superantigravity] Installing workflows...
[superantigravity] Installing agents...
[superantigravity] Updating ~/.gemini/GEMINI.md...
[superantigravity] Bootstrap rules added

✓ SuperAntigravity installed!

  19 skills   → ~/.gemini/antigravity/skills/
  16 workflows → ~/.gemini/antigravity/global_workflows/
   6 agents   → ~/.gemini/antigravity/agents/

Restart Antigravity and type /brainstorm to get started.

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Install marker file

After a successful install, the script writes a manifest to: 
~/.gemini/antigravity/.superantigravity-installed
This file records the installed version and install date: 
superantigravity-version=1.0.0
install-date=2026-03-17T00:00:00Z
If this file is present when you run the installer again, you will see a warning that a previous install was detected and that re-running will overwrite existing skills, workflows, and agents.

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Reinstalling or upgrading

To upgrade to the latest version, uninstall first and then reinstall: 
curl -fsSL https://raw.githubusercontent.com/derHaken/SuperAntigravity/main/uninstall.sh | bash
curl -fsSL https://raw.githubusercontent.com/derHaken/SuperAntigravity/main/install.sh | bash
The uninstall script removes the # SuperAntigravity Skills block from ~/.gemini/GEMINI.md using the marker, then cleans up the skills, workflows, and agents directories.
The # SuperAntigravity Skills block cannot be written to GEMINI.md twice. If the marker is already present, the installer skips that step and prints a warning. Run the uninstall script first if you need a clean reinstall.

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