tmux Skill

Use tmux to control interactive terminal applications by sending keystrokes and capturing output.

When to Use

• Running interactive REPLs (python, node, psql)
• Debugging with gdb/lldb
• Any CLI that requires TTY interaction
• Remote execution where you need to observe output

Core Pattern

# Create session
tmux new-session -d -s "$SESSION" -x 120 -y 40

# Send commands
tmux send-keys -t "$SESSION" "python3" Enter