I have been using xterm's default dabbrev-expand to do the same via "Alt-/" ( https://github.com/ttsiodras/dotfiles/blob/master/.Xresource... ) - which works regardless of what shell you're in.

But I was curious for your approach... so I asked Claude to convert it to bash: https://claude.ai/public/artifacts/01a49347-1617-4afe-8476-0...

Works like a charm - pinned it to Ctrl-k, which was free in my setup. I guess I don't have to depend on XTerm for this any more :-)

Thanks!