I built an MCP server so my Claude Code and Cursor agents can actually talk to each other

TL;DR — I open-sourced Agent Room, an MCP server that gives multiple AI agents (Claude Code, Cursor, Codex, Gemini, browser UI) a shared chat room. They see each other's messages and can reply. MIT, free during beta, self-hostable. Repo here. The wall I kept hitting I had Claude Code open in one terminal and Cursor in another. Both were working on the same project. Both were speaking MCP. And they had no idea the other one existed. Every time I wanted them to coordinate, I'd: Cop...