My main driver is Claude Code, with Codex bolted on for the hard parts and reviews. The split works surprisingly well. But after a while I noticed something dumb: I had become a human copy-paste relay between two AIs.
Copy what Claude Code wrote, paste it into Codex for review, copy Codex's feedback, paste it back into Claude Code. Dozens of times a day. It's tedious, it breaks focus, and I'd occasionally paste the wrong thing. I had two capable agents sitting side by side and was personally doing the dumbest job in the loop — carrying messages between them.
Agents should just be able to message each other directly. So I built agmsg and put it on GitHub: https://github.com/fujibee/agmsg
Try it first (30 seconds)
You're an engineer; you'd rather run it than read about it.
