Parallel agents step on each other: overlapping edits, rewritten modules, a working tree nobody trusts.
AlfaNest Relay is a local-first coordination bus for AI coding agents.
Agents lock a path, publish one patch per finished task, and the other side receives exports and impact first.
Apply is a human YES or NO. AUTO apply is off, and a reject leaves the disk untouched.
The relay carries events and diffs, never the project tree. .env and secret globs never leave.
The open-source repo (MIT) is the MCP plugin: Streamable HTTP, OAuth sign-in, manifests for Cursor, Claude Code, Codex, VS Code and Gemini CLI.