When Claude asks you to choose a design direction, opens a pane that draws each option as a mockup with a Choose button and sends your pick as the next prompt. /design-picker show | toggle | on | off | status. Needs Claude Code 2.1.286 or newer.
An Enhance button above the prompt: rewrites the rough prompt in the box into a specific one, using the project's instructions, the installed skills and the recent conversation, and puts it back in the box to edit; Send sends it. /enhance <text> does the same from the keyboard.
Routes subagents to Sonnet or Haiku under rules you set with /router (on, off, sonnet, haiku, both), and logs every routing decision