tmux-arsenallisted

# tmux arsenal Plain Bash runs one command to completion with no TTY. That breaks on three kinds of work: things that block, things that prompt, and things that must survive past the call. tmux fixes all three, and it is already installed. Quick one-shot commands (`ls`, `cat`, `git status`) stay in plain Bash. This skill is for everything else. ## Where the work goes Check `$TMUX` first: it decides whether you make a window or a session. **Inside tmux** — the user is attached to a session and watching it. Put the work in a new window there, not in a session they would have to go find. ```bash tmux new-window -d -n _dev # -d keeps their current window focused tmux new-window -d -n _dev -c /path/to/repo # -c sets cwd ``` `new-window` has no `-A`, so calling it twice gives you two `_dev` windows. Check before creating: ```bash tmux select-window -t _dev 2>/dev/null || tmux new-window -d -n _dev ``` **Outside tmux** — there is no session in front of them, so make a detached one and always hand back the attach command. ```bash tmux new-session -A -s _dev -d # -A reuses if it exists: idempotent tmux new-session -A -s _dev -d -c /path/to/repo ``` Either way `-t _dev` addresses it, so every command below is the same. ## Naming Prefix with `_` so the user can tell your windows and sessions from theirs, and keep the slug to ONE short word — the name shows in the status line and gets typed to attach, so length is a cost paid on every use. Good: `_de