This skill runs the Design Document Authoring Protocol — a guided interview process that extracts project context, discovers and stress-tests design principles, resolves principle tensions, and generates a structured design document ready for /design-review.

When invoked automatically (not via slash command), respond: "It looks like you're starting a design from scratch (or don't have a formal design document yet). I can guide you through a structured authoring process — it starts with discovering your design principles before writing any architecture. Type /design-draft to begin, or give me a project name or brief description and I'll start immediately."