Agy Customizations

Comprehensive guide and reference for the Antigravity Customization System. Use to author skills, contextual rules, plugins, hooks, and MCP servers with correct priority loading.

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Antigravity Customization System

This skill explains how customizations work within Antigravity (AGY), their discovery mechanisms, loading priorities, and best practices for creating skills, rules, plugins, and MCP servers.

When to Use

  • Writing new custom skills for Antigravity workspaces.
  • Adding repository rules (.agent/rules/*.md or AGENTS.md).
  • Configuring Model Context Protocol (MCP) servers (~/.gemini/antigravity-cli/mcp/).
  • Building lifecycle hooks and terminal integration extensions.

Discovery & Loading Priority

Customizations are discovered and merged in the following order of precedence (highest to lowest):

  1. Workspace Local: <workspace_root>/.agent/skills/
  2. Global User: ~/.gemini/antigravity-cli/skills/
  3. Built-in System: antigravity-cli/builtin/skills/

Authoring Canonical SKILL.md

Every skill must have a root SKILL.md with standard YAML frontmatter with name and description.

pedroiff0/awesome-skills/tree/main/skills/autonomous-ai-agents/agy-customizations commit 3bf36b4040

Frequently asked questions

npx skillmds@latest add pedroiff0/agy-customizations