Google open-sources Elephant-Goldfish Model plugin for catching AI coding mistakes

Google has released the Elephant-Goldfish Model plugin on GitHub, which makes an AI coding agent write and defend a design document before writing code, then hands it to fresh stateless sessions for hostile review. The tool runs in three phases — brainstorm, draft and review — and is used daily by thousands of Googlers.

• The plugin runs in three phases: egm-brainstorm, egm-draft and egm-review
• The Elephant holds project context; stateless Goldfish hunt for flaws in the document
• The design doc covers the problem, plan, alternatives and specific files to change
• It is free on GitHub and currently works only in the Antigravity environment