Crossplay
ShippedOpen source
Claude Code and Codex, in one group chat
If you switch between Claude Code and Codex with an Obsidian vault as their shared memory, you can't easily see what context they're passing along. Crossplay turns it into a group chat you can read, and text back to correct them.

Open source on GitHub
MIT license
What I built
- A kit you deploy inside your own Claude Code desktop app, set up in about 15 minutes
- A live, iMessage-style chat of everything both agents save to your vault, with one chat per project
- Text back to correct them, and Claude updates the vault
- Mac sidebar on wide screens, iPhone layout on narrow ones, plus an hourly sync