tmux/Session/Q/What is the idiomatic way to create a new tmux session from inside an existing session?

• What is the idiomatic way to create a new tmux session from inside an existing session?

  • My Answer

    • Just don't. There's no idiomatic way. Open up a new terminal window in Ghostty and create a new session.

  • AI Answer

    • My Notes
      • These AI answers all result in weird states of tmux. Using tmux/Command/new-session in an existing session actually seems to detach tmux (weird!). And starting from within a pane is a situation tmux warns against.
    • Short answer: Use the tmux command prompt: Prefix + :, type new-session (or the alias new), press Enter.
    • Answer/Official from tmux manual — new-session
    • The two idiomatic paths:
      • 1. Command prompt (in-tmux): Prefix :new-session — opens a new session and switches to it. Optionally append -s <name> to give it a name: Prefix :new-session -s work.
      • 2. Shell (from any pane): tmux new-session -d -s <name> creates a detached session without switching; omit -d to switch immediately.
    • The command prompt form is idiomatic because it stays inside tmux and avoids spawning a new terminal. The :new short form works identically.
    • To stay in the current session while creating the new one (and switch later with Prefix s), add -d: Prefix :new-session -d -s <name>.