An important update: Transitioning Gemini CLI to Antigravity CLI

Google announces Antigravity CLI as the successor to Gemini CLI, unifying agent capabilities for multi-agent workflows. Antigravity CLI retains Agent Skills, Hooks, Subagents, and Extensions as plugins. The transition begins June 18, 2026, when Gemini CLI and Code Assist IDE stop serving requests for Google AI Pro and Ultra. Google emphasizes seamless migration with continued support for existing workflows and features.