How to install skills in Google Antigravity

2. Copy the skill folder in

Download the repository that contains the skill, then copy only that skill's folder. Example with a skill from sickn33/antigravity-awesome-skills:

git clone --depth 1 https://github.com/sickn33/antigravity-awesome-skills.git /tmp/ag-skills

# this project only
mkdir -p .agents/skills && cp -r /tmp/ag-skills/skills/clean-code .agents/skills/

# or every project
mkdir -p ~/.gemini/config/skills && cp -r /tmp/ag-skills/skills/clean-code ~/.gemini/config/skills/

Some skills ship their own installer. UI UX Pro Max, for example, documents uipro init --ai antigravity, which writes to .agents/skills/ for you. Each skill page shows the method its own docs give.

3. Check the folder looks right

.agents/skills/clean-code/
├── SKILL.md       # required
├── scripts/       # optional
├── examples/      # optional
└── resources/     # optional

SKILL.md starts with YAML frontmatter. description is required and is what Antigravity matches your request against; name is optional (lowercase, hyphens).

4. Confirm Antigravity sees it

In the Antigravity 2.0 app, open a new conversation and ask "What skills do you have?". The app has no /skills command; typing / and the skill name also finds it (in our tests sometimes only after the first message). In the Antigravity CLI, run /skills; in a session that was already open, run /skills reload first. In the Antigravity CLI each skill also becomes a slash command. If a skill is missing, check that the folder sits directly under the skills directory and that SKILL.md has a description.

MCP servers go somewhere else

An MCP server is not a skill folder. Antigravity reads MCP servers from ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (one project), using the same mcpServers JSON most servers document. Each entry needs either command (local server) or serverUrl (remote server). In Antigravity 2.0 you can also open Settings → Customizations → Add MCP to pick one from the MCP Store.

{
  "mcpServers": {
    "server-name": {
      "command": "node",
      "args": ["/path/to/server.js"],
      "env": { "KEY": "value" }
    }
  }
}

Before you install: read what it runs

A skill can include scripts the agent will execute. Open the folder and look for scripts/ before copying it in. Skills marked reviewed on this site have a static code review with the commit we checked.

Related guides: Antigravity rules (always-on instructions, unlike on-demand skills) · MCP servers in Antigravity · what agent skills are · write your first skill.