test-driven-development

Quick Review

Exceptional TDD skill with comprehensive methodology and strict enforcement. The description clearly signals when to use it (any feature/bugfix), and SKILL.md provides detailed procedural knowledge including the Red-Green-Refactor cycle, verification steps, code examples, common rationalizations, and anti-patterns. Structure is well-organized with tables, examples, and a logical flow from principles to practice. It references testing-anti-patterns.md appropriately. Novelty is strong: while TDD concepts are known, enforcing discipline (delete-and-restart rules, mandatory verification steps, rationalization detection) is difficult for CLI agents to maintain across sessions, making this skill valuable for cost reduction. Minor opportunity: the description could hint at the strict methodology ('enforces TDD discipline with mandatory test-first workflow') to better prepare agents, though current description is functional.