A working tmux setup for running Claude Code and other AI agents: session-per-project naming, pane layouts, send-keys for scripting an agent, capture-pane for reading one back, and the status-line monitor. Plus the limits you hit at four agents.
tmux runs your AI coding agents in named, detachable sessions that survive a closed terminal or a dropped SSH connection. You get one window holding many agents, send-keys to type into any of them from a script, and capture-pane to read one back. That combination is why people use it.
Before you build any of it by hand, check the built-in path: recent versions of Claude Code can create the worktree and the tmux session for you with claude --worktree --tmux. This guide covers that first, then everything it doesn’t reach, then the point where tmux itself stops.
