EGM is an Apache-2.0 plugin for Claude Code, Codex CLI and Antigravity, with experimental Cursor, OpenCode and GitHub Copilot adapters. An "elephant" agent holds the project, requirements and earlier decisions and drafts the specification.
In the News: November 7, 2026 (Extra 3)
Google's open-source EGM plugin has fresh-context agents review a spec before coding; its own test record leaves reviewer isolation unverified on some hosts.
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