When Your MCP Servers Vanish From the Chat App in Antigravity 2.0
After Antigravity 2.0 split into an IDE and a separate chat-style agent app, an MCP server I had set up in the IDE stopped showing up on the chat side. Here is why the settings scopes are separate, and how to fix it by making a single workspace-level source of truth that both apps read.
Designing MCP Tool Output So It Doesn't Flood Your Agent's Context
When a custom MCP server returns large results in one shot, your Antigravity agent quietly degrades. Field projection, pagination, resource_link, and an output budget keep context from overflowing — shown with concrete TypeScript and measured numbers.
Scope the MCP Tools You Hand an Agent: A Least-Privilege Allowlist Design
As you add MCP servers to Antigravity 2.0, the set of tools every agent can reach quietly grows into an all-you-can-eat buffet. An agent that only needs to read files seeing delete and deploy tools is an accident waiting to happen. This walks through a least-privilege design that scopes tools per agent role, denies at call time, and gates destructive operations behind a second step, with working Python and field notes.
Fixing spawn npx ENOENT When an Antigravity MCP Server Won't Start
Your MCP server config JSON looks correct, but Antigravity logs spawn npx ENOENT and the server stays gray. This is almost always a PATH inheritance problem, not a broken server. Here is how to diagnose and fix it.
What Qwen3.7-Max's '35-Hour Autonomous Run' Means in Practice — Design Notes from an Indie Dev Running Both Antigravity and Claude Code
Alibaba's Qwen team published a demo where Qwen3.7-Max ran autonomously for about 35 hours and made over 1,158 tool calls. I walk through what that number means for a one-person shop using both Antigravity and Claude Code, and how to translate the design lessons into a personal evaluation set.
Chrome DevTools for agents 1.0 goes stable — what changes when it ships inside Antigravity 2.0
Google has shipped Chrome DevTools for agents 1.0 as a stable release and bundled it into Antigravity 2.0. Here is what becomes possible, how it differs from Playwright MCP and Claude in Chrome, and what to watch out for on day one.
Wiring Antigravity 2.0 to Chrome DevTools for agents 1.0: Lighthouse Audits, Extension Debugging, Memory Hunts, and an Operational Plan
Chrome DevTools for agents 1.0 went stable and now ships bundled with Antigravity 2.0. Here is the practical setup I run across my 50M-download indie app business: Lighthouse audits, extension QA, memory leak triage, and auto-connect rules.
Antigravity × Stripe Custom MCP Server: Complete Implementation Guide — Autonomous AI-Driven Billing
Build a custom MCP server that wraps the Stripe API, letting Antigravity's AI agents autonomously handle subscriptions, Webhooks, and multi-tenant billing. A complete TypeScript implementation guide for production-grade SaaS billing.
Connecting Antigravity to Gmail: Setting Up Google Workspace MCP and Practical Workflow Patterns
Learn how to connect Gmail, Google Calendar, and Sheets to Antigravity via MCP so you can manage your inbox, schedule, and tasks without ever leaving your editor. Includes step-by-step setup and real workflow patterns.
Antigravity × MCP Toolbox for Databases: Query BigQuery, AlloyDB & Spanner Directly from Your Agent
A practical guide to connecting Antigravity agents to BigQuery, AlloyDB, Spanner, and Cloud SQL using Google's open-source MCP Toolbox for Databases v1.0.0. Covers MCP Store setup, YAML configuration, natural language queries, and schema analysis workflows.
Stop Antigravity From Writing Outdated API Code — Three Ways to Hand It Fresh Library Docs
A practical workflow for keeping Antigravity's AI on the latest library APIs — using Context7 MCP, direct doc URLs, and AGENTS.md to anchor the agent to your real version stack.
Unit Testing AgentKit 2.0 Agents with Vitest — A Practical Guide
Learn how to unit test and integration test MCP skill servers built with AgentKit 2.0 using Vitest. Covers mock strategies, InMemoryTransport integration tests, and CI/CD setup with real working code examples.