Open source alternatives to tmux

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tmux

Control tmux sessions/panes for interactive CLIs: list, capture output

tmux is an agent skill from the OpenClaw project, listed on skills.sh. It lets an agent work with existing interactive tmux sessions: list sessions, windows and panes, capture a pane's output, send keys, paste text and watch for prompts. A skill is a SKILL.md file of instructions (sometimes with scripts and reference notes) that an AI agent loads only when a task calls for it, so the agent knows the steps to follow and what to avoid. It is free and open source.