principle-redesign-from-first-principles

What problem does it solve? When a new requirement arrives, teams often bolt it onto an existing design, creating fragile patches and accumulated complexity. This Skill guides you to redesign the affected system as if the requirement had been present from day one, preserving architectural coherence and option value. ## Core Features & Use Cases - First-Principles Redesign: Re-examines the current design and asks what you would build from scratch with the new requirement included. - Full Propagation: Spreads the change through every reference, including types, docs, examples, and rationale sections. - Guarded Execution: Requires concrete intake evidence before acting, returns a HOLD instead of guessing when inputs are missing, and defaults to the smallest structural change. - Use Case: A new permission model must be added to an existing API. Instead of layering checks onto current endpoints, the Skill walks you through redesigning the authorization layer as if permissions were a founding constraint, then delivering the redesign incrementally. ## Quick Start Apply the redesign-from-first-principles method to integrate this new requirement into my existing design instead of bolting it on.