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Tmux keeps Claude Code agents running across disconnects and scripts

crystl.dev 13 min read Editor score 8/10

The guide covers persistent tmux sessions, scripting agents with send-keys and capture-pane, and Claude Code’s built-in worktree-and-tmux option. These patterns help engineers manage long-running coding agents without building orchestration from scratch.

What: Tmux runs coding agents in named, detachable sessions that persist after a terminal closes or an SSH connection drops.
How: A shell can use send-keys to type into an agent and capture-pane to read its screen; recent Claude Code versions can create a worktree and session with one command.
Why it matters: Tmux offers a scriptable way to manage multiple long-running agents without building separate IPC or API plumbing.

Shell scripts interact with agents in persistent tmux sessions using tmux commands. Sketched from the article's own text.

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