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Antigravity Agent Skill Builder
Create, customize, and download AI agent skills for Google Antigravity.
Enter a description and generate your custom Agent Skill.
What is Antigravity Agent Skill Builder?
The Antigravity Agent Skill Builder is a free developer tool that generates standardized `SKILL.md` files for Google's Antigravity IDE. It converts natural language descriptions into valid agent instructions, allowing developers to extend their AI assistant's capabilities for coding, testing, and DevOps workflows without manual formatting.
How to Use Antigravity Agent Skill Builder
1
Describe the task you want the agent to perform (e.g., 'Generate a React component with tests').
2
Optionally provide a unique name for the skill (e.g., 'react-gen').
3
Click 'Generate Skill' to instantly create the `SKILL.md` file with correct YAML frontmatter.
4
Review the generated instructions in the code preview.
5
Download the file and save it to your project's `.agent/skills/<skill-name>/` directory.
6
Restart your Antigravity IDE to activate the new skill.
Key Features
AI-Powered Generation: Turns simple text into complex, multi-step agent protocols.
Zero-Shot Formatting: Automatically handles indentation, YAML headers, and markdown syntax.
Integrated Library: Includes 30+ pre-built skills for React, Node.js, Docker, and more.
Instant Validation: Ensures generated skills meet Google's strict agent definitions.
Privacy First: No personal code is stored; generation happens on-demand.
About Antigravity Agent Skill Builder
What are Antigravity Agent Skills?
Agent Skills are the building blocks of the Google Antigravity IDE experience. They define specific capabilities and workflows that your AI agent can execute. A skill consists of a SKILL.md file containing instructions, examples, and metadata.
Why use the Skill Builder?
Creating custom agents for Google's Antigravity IDE requires precise formatting. A single YAML error can prevent the agent from loading. This tool bridges the gap between your intent and the required technical specification.
Manual vs. AI-Generated Skills
| Feature | Manual Creation | Agent Skill Builder |
|---|---|---|
| Speed | 10-15 minutes per skill | < 10 seconds |
| Accuracy | Prone to syntax errors | 100% Valid Syntax |
| Complexity | Basic instructions | Multi-step reasoning chains |
| Format | Manual Markdown formatting | Auto-formatted YAML/MD |
| Cost | Developer time | 100% Free |
Expert Tip: For complex skills, try "Chain of Thought" prompting in the description. Instead of saying "write code," say "First, analyze the file structure, then plan the changes, and finally implement the solution." The builder will incorporate this logic into the agent's instructions.
Related Deep Dives
- Agent Configuration: Learn how to tweak the
SKILL.mdtemperature and model settings. - Context Awareness: How to write skills that read specific files.
- Multi-Agent Flows: Chaining multiple skills together for complex refactors.
Frequently Asked Questions
What is an Antigravity Agent Skill?
An Agent Skill is a markdown file (`SKILL.md`) that defines a specific capability for the AI in Google's Antigravity IDE. It includes a name, description, and a set of natural language instructions that guide the AI's behavior when solving tasks.
How do I install the generated skill?
1. Create a folder in your project: `.agent/skills/<my-skill>/`. 2. Place the downloaded `SKILL.md` file inside. 3. Reload the IDE window. The agent will now recognize commands related to that skill.
Is this tool free to use?
Yes, the Antigravity Agent Skill Builder is completely free for individual and commercial use. You can generate unlimited skills.
Can I share these skills with my team?
Absolutely. Since skills are just files in your repository, simply commit the `.agent/skills` directory to Git. Your entire team will inherit the custom agent capabilities.
What categories of skills can I generate?
You can generate skills for **Frontend** (React, Vue), **Backend** (Node, Python, Go), **DevOps** (Docker, K8s), **Testing** (Jest, Cypress), and **Documentation**. The pre-defined library includes examples for all these categories.