The SDD Implementation Planner (sdd-plan) is a specialized Claude Code skill designed for the second phase of Specification-Driven Development. It bridges the gap between requirements and code by analyzing existing specifications, validating readiness through automated phase gates, and generating a structured implementation roadmap. This skill enforces architectural best practices, decomposes features into atomic, test-first tasks, and evaluates technical risks to ensure a seamless transition from theory to production-ready code.
