skill-authoring

TDD for Claude Skills means writing failing tests first, then implementing the skill to pass them. This approach catches design flaws early, ensures your skill handles edge cases, and validates compliance with YAML frontmatter and SKILL.md structure requirements before deployment.

Validate your skill by running automated tests against YAML frontmatter, SKILL.md structure, module and script references, and integration points with modular-skills and skills-eval. This catches structural issues and ensures deployment readiness.

Refine underperforming skills using TDD cycles: write tests that expose gaps in reasoning or handling, then incrementally improve the skill's logic. Progressive disclosure and anti-rationalization help identify hidden assumptions limiting performance.

Yes. Start with failing tests that define your skill's expected behavior, then build incrementally. This structured approach enforces high integrity and ensures your skill meets technical requirements for modular design and integration.

Skill authoring requires modular-skills as a dependency for proper module and script integration. The framework enforces validation against this dependency and skills-eval to ensure your skill integrates correctly in the larger ecosystem.

Testing enforces the Iron Law: failing tests first prevent under-tested skills from reaching production. TDD cycles with validation catch structural violations, integration failures, and reasoning gaps that manual review alone misses.