tdd-red

Execute the RED phase of TDD by writing a failing test for the next unmarked item in PLAN.md. Writes tests with Korean descriptions and confirms test failure.

$ 安裝

git clone https://github.com/majiayu000/claude-skill-registry /tmp/claude-skill-registry && cp -r /tmp/claude-skill-registry/skills/testing/tdd-red ~/.claude/skills/claude-skill-registry

// tip: Run this command in your terminal to install the skill