rex-claude

Open other Claude Code sessions in Rex terminal panes or tabs and drive them: launch claude in a directory, answer the workspace trust dialog, send prompts, wait for each turn by its reported status (working, done, blocked on a permission prompt), read the screen, press keys and close the pane. Use when running inside the Rex terminal (REX_SESSION is set, TERM_PROGRAM=rex) and the user wants to start, delegate to, test in, watch or control a second Claude Code session side by side, for example to test a setting or permission in a fresh session, run a task in parallel in another pane, or check what another Claude pane is doing.