Google Open Source Blog post introducing the Elephant-Goldfish Model plugin, with the blue Elephant and orange Goldfish artwork under the headline
FAQ

Google’s Elephant-Goldfish Model Explained: Install EGM in Antigravity, Claude Code and Codex, Plus the Catches

Google has open sourced the Elephant-Goldfish Model plugin, the spec first workflow it says thousands of its engineers use: one deep context Elephant drafts the plan, zero memory Goldfish subagents try to break it, then the AI writes code. What it is, who it is for, verified install commands for Antigravity, Claude Code and Codex, why Gemini CLI is missing, a worked hobby example and the small print.

[…]