agentmash

Agentmash is an open-source multiplayer AI layer for teams' coding agents. It provides a shared context layer that tells every agent which files a teammate's agent is changing, so agents coordinate with each other and work independently without overwriting anyone's code. Teams can switch between tasks running on different models, @mention teammates, their own agents, or teammates' agents like in Slack, and keep skills, chats, and automations in sync. Agentmash connects to Claude Code, Codex, Antigravity, or your own open-source models.