IF A SKILL APPLIES TO YOUR TASK, YOU DO NOT HAVE A CHOICE. YOU MUST USE IT.

This is not negotiable. This is not optional. You cannot rationalize your way out of this.

Getting Started with spex

What is spex?

SDD = Specification-Driven Development. spex is the Claude Code plugin that implements it.

SDD is a development methodology where specifications are the single source of truth:

• Specs created before code
• Code validated against specs
• Specs evolve with implementation reality
• Quality gates enforce spec compliance