Antigravity / Gemini CLI Skills Repository

This repository contains a collection of example Skills for Google Antigravity and Gemini CLI. These examples demonstrate the “Agentic Command” pattern, where natural language requests are routed to specialized instructions, tools, and context.

Read the blog post: https://medium.com/google-cloud/tutorial-getting-started-with-antigravity-skills-864041811e0d

Do a codelab: https://codelabs.developers.google.com/getting-started-with-antigravity-skills?hl=en#0

Also check out the Google Antigravity Community Hub for more resources, articles, and updates on Antigravity.

Antigravity Skills

Antigravity Skills allow you to define how an agent should behave, which tools it should use, and what context it should reference. This project breaks down skill development into 4 progressive levels of complexity.

Skills in skills_tutorial/

The skills_tutorial/ directory contains the following examples:

Level 1: Basic Routing

git-commit-formatter

• Concept: Pure prompt engineering.
• Function: Intercepts “commit” requests and formats the message according to the Conventional Commits specification.
• Key File: SKILL.md

Level 2: Asset Utilization

license-header-adder

• Concept: Loading static resources.
• Function: Adds a standard Apache 2.0 license header to source files by reading a template from the resources/ folder.
• Key Files: SKILL.md, resources/HEADER_TEMPLATE.txt

Level 3: Few-Shot Learning

json-to-pydantic

• Concept: Learning by example.
• Function: Converts JSON data into Pydantic models by referencing a “golden example” pair (input JSON → output Python) instead of relying on complex instructions.
• Key Files: SKILL.md, examples/

Level 4: Tool Use & Validation

database-schema-validator

• Concept: Delegating to deterministic scripts.
• Function: Validates SQL schema files for safety and naming conventions by running a Python script, ensuring accurate results.
• Key Files: SKILL.md, scripts/validate_schema.py

Usage

To use these skills in your Antigravity environment:

1. Clone this repository.
2. Copy the desired folders from skills_tutorial/ into your workspace’s .agent/skills/ directory, or into your global ~/.gemini/antigravity/skills/ directory.
3. Restart your agent session.

Gemini CLI Skills

Skills in gemini-cli-skills/

The gemini-cli-skills/ directory contains the following example:

Always Verify GCP

always-verify-gcp

• Concept: Validating GCP commands with the latest official documentation.
• Function: This skill interprets ambiguous Google Cloud commands by first consulting the official documentation via the Developer Knowledge MCP Server, then using the ask_user tool to provide a validated response.
• Key File: SKILL.md

License

Apache 2.0