LZH-YS1998
107 lines
3.3 KiB
Markdown
107 lines
3.3 KiB
Markdown
---
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name: tmux
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description: Remote-control tmux sessions for interactive CLIs by sending keystrokes and scraping pane output.
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metadata: {"requires":{"bins":["tmux"]}}
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---
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# tmux Skill
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Use tmux only when you need an interactive TTY. Prefer `shell_exec` for long-running, non-interactive tasks.
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## Quickstart (isolated socket)
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```bash
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SOCKET_DIR="${OPC_TMUX_SOCKET_DIR:-${TMPDIR:-/tmp}/opc-tmux-sockets}"
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mkdir -p "$SOCKET_DIR"
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SOCKET="$SOCKET_DIR/opc.sock"
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SESSION=opc-python
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tmux -S "$SOCKET" new -d -s "$SESSION" -n shell
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tmux -S "$SOCKET" send-keys -t "$SESSION":0.0 -- 'PYTHON_BASIC_REPL=1 python3 -q' Enter
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tmux -S "$SOCKET" capture-pane -p -J -t "$SESSION":0.0 -S -200
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```
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After starting a session, always print monitor commands:
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```
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To monitor:
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tmux -S "$SOCKET" attach -t "$SESSION"
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tmux -S "$SOCKET" capture-pane -p -J -t "$SESSION":0.0 -S -200
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```
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## Socket convention
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- Use `OPC_TMUX_SOCKET_DIR` environment variable.
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- Default socket path: `"$OPC_TMUX_SOCKET_DIR/opc.sock"`.
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## Targeting panes and naming
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- Target format: `session:window.pane` (defaults to `:0.0`).
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- Keep names short; avoid spaces.
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- Inspect: `tmux -S "$SOCKET" list-sessions`, `tmux -S "$SOCKET" list-panes -a`.
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## Finding sessions
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- List sessions on your socket: `{baseDir}/scripts/find-sessions.sh -S "$SOCKET"`.
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- Scan all sockets: `{baseDir}/scripts/find-sessions.sh --all` (uses `OPC_TMUX_SOCKET_DIR`).
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## Sending input safely
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- Prefer literal sends: `tmux -S "$SOCKET" send-keys -t target -l -- "$cmd"`.
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- Control keys: `tmux -S "$SOCKET" send-keys -t target C-c`.
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## Watching output
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- Capture recent history: `tmux -S "$SOCKET" capture-pane -p -J -t target -S -200`.
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- Wait for prompts: `{baseDir}/scripts/wait-for-text.sh -t session:0.0 -p 'pattern'`.
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- Attaching is OK; detach with `Ctrl+b d`.
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## Spawning processes
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- For python REPLs, set `PYTHON_BASIC_REPL=1` (non-basic REPL breaks send-keys flows).
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## Orchestrating Coding Agents
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tmux excels at running multiple coding agents in parallel:
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```bash
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SOCKET="${TMPDIR:-/tmp}/opc-army.sock"
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for i in 1 2 3 4 5; do
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tmux -S "$SOCKET" new-session -d -s "agent-$i"
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done
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tmux -S "$SOCKET" send-keys -t agent-1 "cd /tmp/project1 && codex --yolo 'Fix bug X'" Enter
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tmux -S "$SOCKET" send-keys -t agent-2 "cd /tmp/project2 && codex --yolo 'Fix bug Y'" Enter
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for sess in agent-1 agent-2; do
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if tmux -S "$SOCKET" capture-pane -p -t "$sess" -S -3 | grep -q "❯"; then
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echo "$sess: DONE"
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else
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echo "$sess: Running..."
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fi
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done
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tmux -S "$SOCKET" capture-pane -p -t agent-1 -S -500
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```
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## Cleanup
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- Kill a session: `tmux -S "$SOCKET" kill-session -t "$SESSION"`.
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- Kill all sessions on a socket: `tmux -S "$SOCKET" list-sessions -F '#{session_name}' | xargs -r -n1 tmux -S "$SOCKET" kill-session -t`.
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- Remove everything on the private socket: `tmux -S "$SOCKET" kill-server`.
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## Helper: wait-for-text.sh
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`{baseDir}/scripts/wait-for-text.sh` polls a pane for a regex (or fixed string) with a timeout.
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```bash
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{baseDir}/scripts/wait-for-text.sh -t session:0.0 -p 'pattern' [-F] [-T 20] [-i 0.5] [-l 2000]
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```
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- `-t`/`--target` pane target (required)
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- `-p`/`--pattern` regex to match (required); add `-F` for fixed string
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- `-T` timeout seconds (integer, default 15)
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- `-i` poll interval seconds (default 0.5)
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- `-l` history lines to search (integer, default 1000)
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