Delegate heavy tasks from Claude Code to the Antigravity CLI (Gemini) with quota-aware failover.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
Manual Client & Custom JSON ConfigExpand JSON ▾
Client Config & Setup
Choose your client or environment
Target File:
💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Documentation Overview
Install · Why Gemini 3.7 Flash? · MCP Power Stack · Tools · Timeouts · Configuration
⚡ Install
Claude Code delegates heavy tasks to Google's flagship Gemini 3.7 Flash (High) via the Antigravity CLI (agy) — saving Claude's context window and tokens for what matters.
Claude acts as the orchestrator → claude-agy-mcp routes compute-heavy sub-tasks to Gemini 3.7 Flash (High) → only concise answers return. Large files, deep git searches, and log dumps never pollute Claude's context.
Why Gemini 3.7 Flash (High) for Claude Code?
Gemini 3.7 Flash is Google's most intelligent workhorse model for coding and agentic execution. It applies deep multi-step planning, rigorous terminal reasoning, and high first-pass code accuracy.
Benchmark Highlights
| Benchmark / Capability | Gemini 3.7 Flash (High) | Prior Generation (3.6 Flash) | Advantage |
|---|---|---|---|
| DeepSWE v1.1 | 65.3% | 49.0% | +16.3% jump in long-horizon repository software engineering |
| FrontierCode 1.1 | 43.6% | 34.4% | +9.2% improvement in production code quality and first-pass accuracy |
| Terminal-Bench 2.1 | 85.8% | 78.0% | +7.8% higher resilience in agentic CLI execution & tool chaining |
| WebDev Arena | 1588 Elo | 1538 Elo | #1 Rank for fullstack web application and UI design adherence |
| AutomationBench | 30.4% | 17.0% | Surpasses GPT-5.6 Terra (23.6%) and Claude Sonnet 5 (10.7%) in enterprise agent workflows |
| Context & Window | 1,000,000 Tokens | 1,000,000 Tokens | 64K output tokens with 97.0% retrieval on GDM-MRCR v2 (128k) |
| Token Economics | $0.75 / $3.75 (1M) | $1.50 / $7.50 | Up to 10x–20x cheaper than Claude Opus/Sonnet for background delegation |
The Token & Context Multiplier
When Claude Code directly analyzes a 4,000-line database dump or greps 20 files across git history, those thousands of lines stay permanently in Claude's prompt context, inflating cost and pushing you toward compaction.
With claude-agy-mcp:
- Claude calls
analyze_filesordeep_search. - Gemini 3.7 Flash processes the 100k+ tokens in isolation via
agy. - Only the exact code-level findings and line citations return into Claude's prompt.
- Subsequent questions reuse the same agy session with
follow_upwithout re-sending any files.
The Ultimate AI Engineering MCP Stack
claude-agy-mcp is designed to anchor a modern AI engineer's MCP toolkit alongside complementary specialized servers:
| MCP Server | Primary Superpower | When Claude Uses It |
|---|---|---|
claude-agy-mcp | Heavy Compute & Coding Delegation | Analyzing files >200 lines, repo archaeology (git log/diff/blame), adversarial code reviews, and raw execution via Gemini 3.7 Flash. |
context7 | Up-to-date Official Documentation | Fetching latest version-accurate API signatures and documentation for libraries (Next.js, React, Tailwind, Prisma, Vite, etc.) to eliminate hallucinated APIs. |
firecrawl | Clean Web Scraping & Crawling | Converting dynamic web pages, documentation sites, and GitHub repos into clean, LLM-ready markdown or structured JSON. |
tavily | Fast Live Search & Grounding | Low-latency web search, current news, error message lookups, and technical research. |
Recommended MCP Configuration (.agents/mcp_config.json or Claude Code)
Why this over claude-to-agy?
| claude-to-agy | claude-agy-mcp | |
|---|---|---|
| Tool surface | 1 generic delegate_to_agy | 6 purpose-built tools — Claude self-routes reliably |
| Model selection | none (agy default only) | per-tool routing prioritizing Gemini 3.7 Flash (High) with quota failover |
| Multi-turn | stateless | session continuity — follow_up resumes agy conversations without resending context |
| Output safety | unbounded | configurable truncation cap protects Claude's context |
| Sandbox | no | optional --sandbox mode |
| Install | uvx (Python) | npx (Node) — zero install |
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