vp

Create interactive visual prototype playground for user approval before technical decomposition. Use when asked to 'create prototype', 'visual mockup', 'preview design', 'design playground', 'show me the feature', 'what would this look like', 'mockup the UI', 'visualize the architecture', 'preview before building', 'let me see the design', or anytime the user wants to see or approve a visual representation of a feature before coding begins. Also trigger when /nf discovery is complete and the user says 'looks good, let's see it', 'now show me', or 'visualize this'. NOT for brainstorming (use /brainstorm), NOT for feature discovery (use /nf), NOT for implementation tasks (use /ct), NOT for quick one-off diagrams (use /generate-web-diagram).