Spec-Driven Development (SDD) Skill

This skill integrates PRD (Requirements) and SA (Analysis) knowledge, defining a standard development workflow. The core principle is "No Spec, No Code".

Core Principles

1. Spec-First: Specs come before code
2. Traceability: Every requirement can be traced to design and implementation
3. Acceptance-Driven: Every requirement has verifiable acceptance criteria
4. Version Control: Spec documents are version-controlled with change processes
5. Living Documentation: Code changes must sync with spec updates to maintain consistency

Workflow Overview

flowchart LR
    A[User Request] --> B[PRD Phase]
    B --> C{Review}
    C -->|Approved| D[SA Phase]