Set tmux pane title to short hostname on ssh connections for Fish

set-tmux-title

# Copy that into your ~/.config/fish/config.fish

function ssh
  set ps_res (ps -p (ps -p %self -o ppid= | xargs) -o comm=)
  if [ "$ps_res" = "tmux" ]
    tmux rename-window (echo $argv | cut -d . -f 1)
    command ssh "$argv"
    tmux set-window-option automatic-rename "on" 1>/dev/null
  else
    command ssh "$argv"
  end
end

Thanks it works.