What happened
Google stopped serving Gemini CLI and Gemini Code Assist IDE extension requests for the individual, AI Pro and AI Ultra tiers on June 18. Affected developers were told to migrate to Antigravity and the new Antigravity CLI, a Go-based agentic command-line tool that shares architecture with Antigravity 2.0 and supports async multi-agent workflows.
The new CLI carries over familiar capabilities including Agent Skills, Hooks and Subagents, while Extensions are now called plugins. Standard and Enterprise license holders, along with Google Cloud GitHub customers, keep their existing access, and Gemini CLI continues to function for anyone using paid API keys.
Why it matters
Retiring a widely used developer tool and pushing users onto a new one is a significant migration for teams that built workflows around Gemini CLI. The Go rewrite and async multi-agent model signal where Google wants agentic coding to head, but it forces short-term churn.
The split between free and paid access also clarifies who Google expects to invest in its coding tooling going forward.
MintedBrain take
Developers on the affected tiers should budget time to test Antigravity CLI before any critical work, since renamed concepts like plugins and reworked architecture can break existing scripts and configs. Anyone with a paid API key has more breathing room, but the direction is clear enough that planning the migration now is prudent.
Discussion
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