tdd-pack

Red-Green-Refactor TDD with strict subagent context isolation.

Skill

• tdd — orchestrates the cycle, delegating each phase to an isolated subagent.

Subagents

• tdd-test-writer — Red. Sees only the spec; never the implementation.
• tdd-implementer — Green. Sees only the failing test; never the spec or earlier drafts.
• tdd-refactorer — Refactor. Improves clarity post-Green without changing behavior.

Command

• /tdd <short behavior spec>

Why isolation matters

LLMs that see both the spec and the implementation tend to write tests that match the implementation, not the intent. Separate subagents enforce information boundaries.

Install: claude /plugin install tdd-pack@claude-harnesses