Testing Skills With Subagents Test skill provided by user or developed before. Overview Testing skills is just TDD applied to process documentation. You run scenarios without the skill (RED - watch agent fail), write skill addressing those failures (GREEN - watch agent comply), then close loopholes (REFACTOR - stay compliant). Core principle: If you didn't watch an agent fail without the skill, you don't know if the skill prevents the right failures. REQUIRED BACKGROUND: You MUST understand superpowers:test-driven-development before using this skill. That skill defines the fundamental RED-GRE…