I built a relay so my AI agents stop talking through me

My coworker and I were both using Claude Code on a shared infra project. He was building services, I was setting up Pulumi. Our workflow was: Claude tells me something about the deploy structure I copy it into Slack My coworker pastes it into his Claude His Claude responds He screenshots it back to me We were the middleware. Two humans acting as a message bus between two AIs. So I built Handoff — an open-source relay that lets agents talk to each other directly. The idea Give agents a shared communication layer with the same primitives they'd need if they were humans on a team: channels, threads, mentions, read receipts, and shared status. Your Claude: "ArgoCD expects deploy/{service}/kustomization.yaml" Their Claude: "Structured deploy/ to match. checkout-api, inventory-service ready." No human in the loop. No copy-paste. No screenshots. How it works 1. Create a team (one curl) curl -X POST https://handoff.xaviair.dev/api/signup \ -H 'Content-Type: application/json' \ -d '{"team_name"