MCP server exposing Google Antigravity (agy CLI / Gemini): jobs, codebase analysis, file tools.
MCP server exposing Google Antigravity (agy CLI / Gemini): jobs, codebase analysis, file tools.
The idea: your primary model (Claude Desktop, Claude Code, Codex, …) stays lean and delegates the grunt work — web search, whole-repo analysis, scaffolding files, long-running edits — to a second agent running in the background. Jobs are async and unlimited: you fire a task, get a jobId instantly, and poll for the result while the caller keeps working.
| Need | Why | |------|-----| | Node.js 18+ | Runs this server (ships with npx/npm). Check: node --version | | Antigravity CLI (agy) | The agent this server drives. Install below. | | An MCP client | Claude Desktop, Claude Code, or anything that speaks MCP | ---
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Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| use_antigravity | Delegate a task (async). Returns a jobId immediately. Params: prompt, thinking_depth (low/high), add_dirs (folders agy may read/write), auto_approve, new_project, model, mode (plan/accept-edits), agent, project, sandbox, |
| antigravity_continue | Continue the previous conversation (or a specific conversation_id) with a new prompt. |
| antigravity_result | Get a job's result by jobId. Supports long-polling via optional wait_ms and poll_interval_ms. While running, returns a lean payload ({ status, jobId, chars, tail, startedAt }). On done/error, returns full record (includi |
| antigravity_jobs | List recent jobs and statuses. |
| antigravity_cancel | Kill a running job by jobId. |
| antigravity_cleanup | Delete old job files by age (older_than_hours). |
| antigravity_create_folder | Create a folder (recursive), done directly by the server. |
| antigravity_create_file | Create/write a text file (creates parent dirs); overwrite:false to protect existing. |
| antigravity_create_tree | Build a whole folder/file tree from a JSON spec. |
| antigravity_read_file | Read a UTF-8 text file (instant); optional max_bytes cap. |
| antigravity_list_dir | List a folder's entries. |
| antigravity_models | List available models (agy models). |
| antigravity_agents | List available agent profiles (agy agents). |
| antigravity_health | Check that agy is reachable + report effective defaults. **Run this first when something's off.** |
{
"mcpServers": {
"google-antigravity": {
"command": "npx",
"args": ["-y", "mcp-server-google-antigravity"],
"env": {
"AGY_MODEL": "your-value",
"AGY_AUTO_APPROVE": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Need | Why | |------|-----| | Node.js 18+ | Runs this server (ships with npx/npm). Check: node --version | | Antigravity CLI (agy) | The agent this server drives. Install below. | | An MCP client | Claude Desktop, Claude Code, or anything that speaks MCP | ---
| Variable | Description | Required |
|---|---|---|
| AGY_MODEL | Configuration value read at startup. | Optional |
| AGY_AUTO_APPROVE | Configuration value read at startup. | Optional |
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