sdd-principles

What problem does it solve?

This Skill provides a structured methodology (Specification-Driven Development - SDD) to ensure that software development is initiated and guided by clear, unambiguous specifications, minimizing guesswork and rework.

Core Features & Use Cases

• Defines SDD Principles: Outlines core concepts like "Specification = Single Source of Truth" and "Executable Specifications".
• Project Constitution: Enforces a set of immutable principles for development (e.g., Module First, Contract First, Test First).
• Phase Gate Definitions: Clearly defines the criteria for moving between development phases (Specify -> Plan, Plan -> Implement).
• Uncertainty Markers: Standardizes how to flag and manage ambiguities in specifications using [NEEDS CLARIFICATION].
• Use Case: Before starting a new feature, use this Skill to ensure all requirements are documented, ambiguities are flagged, and the team agrees on the "Project Constitution" and phase gate criteria, leading to a more predictable development cycle.

Quick Start

Review the SDD principles and phase gate definitions to understand the Specification-Driven Development process.