If no argument is provided, output usage guidance and exit without spawning any agents: Usage: — specify the feature or area to design audio for (e.g., , , , ). Do not use here; output the guidance directly. When this skill is invoked with an argument, orchestrate the audio team through a structured pipeline. Decision Points: At each step transition, use to present the user with the subagent's proposals as selectable options. Write the agent's full analysis in conversation, then capture the decision with concise labels. The user must approve before moving to the next step. Phase 0: Resolve Re…