- /shell [cmd]: launch user's $SHELL via tea.ExecProcess (PTY handoff)
hands terminal to the shell and restores TUI on exit.
/shell <cmd> runs that command in the shell directly.
Detects $SHELL > $COMSPEC > /bin/sh|powershell.exe in order.
- bash tool: detect interactive commands before execution
Prefix-interactive: sudo, ssh, passwd, vim/vi/nano, less/more,
htop/top, mysql/psql, ftp/sftp, git push.
Exact-interactive (REPL): python3/python/node/irb/iex/ghci/julia.
Returns a tool result with interactive=true metadata and a hint to
use /shell instead of hanging or erroring.
- completions: add /shell to builtin command list
- help: document /shell [cmd]
