Google Cloud developer plugin lands in Antigravity Marketplace with pre-authorized MCP server

[Google Cloud] The google-cloud-developer plugin is now available in the Build with Google section of the Antigravity Marketplace, according to Google Cloud, allowing users to install it directly starting November 2, 2026. Google Cloud said the plugin equips Antigravity with foundational skills, safety guardrails and live documentation grounding for building on Google Cloud. The bundled Developer Knowledge Model Context Protocol (MCP) server is pre-authorized by default, so users do not need to configure API keys, exchange OAuth tokens or edit configuration files, and the agent connects to official Google developer documentation immediately after installation, according to the company. Bundled skills include finding-google-skills, which discovers and loads skills on demand from the google/skills repository on GitHub; retrieving-developer-knowledge, which provides answers and code samples grounded in official Google documentation; gcloud, which validates syntax and applies safety checks to Google Cloud CLI commands; google-cloud-recipe-auth, which steers agents toward secure authentication patterns; and google-cloud-recipe-onboarding, which guides initial project setup and billing verification. Google Cloud said the agent requires user consent before enabling billable APIs or modifying cloud infrastructure.