Gemini CLI Extensions: Transform Your Terminal into an AI-Powered Control Tower

Yes—Gemini CLI Extensions let you speak plain English to the shell and watch databases, design files, payment ledgers and K8s clusters bend to your will. Below you’ll learn what the framework is, why Google built it, how to install your first extension, how to write one, and what safety guard-rails matter in production. What Exactly Are Gemini CLI Extensions? Core question: “What is this new framework Google dropped in October 2025 and why should engineers care?” In short, Extensions are packaged adapters that teach the open-source Gemini CLI how to talk to external tools—Postman, Figma, BigQuery, Stripe, your home-grown Jenkins, …