Claude Code and Codex Can Have Real-Time Conversation via Git

This article introduces a new feature called Agent Radio — that is, `h5i msg` — within a tool called h5i, an "AI-aware Git." The author notes that coding agents like Claude Code and Codex are already able to accelerate software development automation, but a single agent is still limited by its context window, and in large repositories it is often necessary to handle different tasks in parallel. Therefore, how multiple AI agents collaborate, hand off context, and avoid information loss has become a new problem. h5i's solution is to let agents exchange messages directly through a Git repository, making it look like a real-time conversation while preserving a complete, auditable version history.