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Google Antigravity SDK

Google Antigravity SDK is an agent skill (a SKILL.md file) from google-antigravity/antigravity-sdk-python. Design, implement, and debug autonomous AI agents and multi-agent systems using the Google Antigravity (AGY) SDK. It works with Claude Code and has 3,650 GitHub stars. Install it by copying the skill folder into your agent's skills directory.

github.com/google-antigravity/antigravity-sdk-python/skills/google-antigravity-sdk (opens in a new tab)

  • Needs API key
  • Coding
  • Actively maintained
View on GitHub (opens in a new tab)

Add this skill

Claude

Claude Code loads skills from ~/.claude/skills/ (all projects) or .claude/skills/ (one project):

git clone --depth 1 https://github.com/google-antigravity/antigravity-sdk-python.git
cp -r antigravity-sdk-python/skills/google-antigravity-sdk ~/.claude/skills/google-antigravity-sdk   # personal, or .claude/skills in a project

In the Claude apps, zip the google-antigravity-sdk folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/google-antigravity/antigravity-sdk-python.git
cp -r antigravity-sdk-python/skills/google-antigravity-sdk .agents/skills/google-antigravity-sdk   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/google-antigravity/antigravity-sdk-python.git
cp -r antigravity-sdk-python/skills/google-antigravity-sdk .cursor/skills/google-antigravity-sdk   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

Design, implement, and debug autonomous AI agents and multi-agent systems using the Google Antigravity (AGY) SDK. ACTIVATE this skill when the user wants to create, configure, or orchestrate Google Antigravity agents. Before proceeding with any Google Antigravity tasks, ensure the environment is ready:

When it triggers

  • ACTIVATE this skill when the user wants to create, configure, or orchestrate Google Antigravity agents.

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FAQ

Google Antigravity SDK FAQ

Still curious? Email info@appsgit.com.

What is the Google Antigravity SDK skill?

Google Antigravity SDK is an agent skill (a SKILL.md file) from google-antigravity/antigravity-sdk-python. Design, implement, and debug autonomous AI agents and multi-agent systems using the Google Antigravity (AGY) SDK. It works with Claude Code and has 3,650 GitHub stars. Install it by copying the skill folder into your agent's skills directory. Its SKILL.md lives at github.com/google-antigravity/antigravity-sdk-python/skills/google-antigravity-sdk.

How do I install the Google Antigravity SDK skill?

Copy the google-antigravity-sdk folder (the one containing SKILL.md) into ~/.claude/skills/ for Claude Code, .agents/skills/ for Codex or .cursor/skills/ for Cursor. The agent picks it up automatically when a task matches its description.

Is the Google Antigravity SDK skill free?

Yes. The repository is open source under the Apache-2.0 license. The skill mentions an API key or token for an external service, which may need its own account.

Is Google Antigravity SDK maintained?

The repository's most recent commit was on Sep 27, 2026. appsgit only lists skills from repositories with a commit in the last six months.