Multi-agent Claude Code at scale: building Parthas at Intercom

Parthas is a multi-agent orchestrator for Claude Code that coordinates parallel coding agents through software instead of agent-to-agent messaging. In this demo I’ll run it live against a real codebase. I’ll spin up several agents in isolated worktrees, show the permission queue and the web dashboard, and walk through the design principles that keep it fast without YOLO-ing your main branch.