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test-first

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Drive one feature through a strict TDD Red-Green-Refactor cycle with checklists for each phase. Use when implementing new functionality test-first, or when the user runs /test-first.

skills/test-first/SKILL.md

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# Test-Driven Development

Implement TDD for: $ARGUMENTS

## Quick Steps
1. Write a failing test
2. Run test, confirm failure
3. Write minimal code to pass
4. Refactor while keeping tests green
5. Repeat

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## Red Phase - Write Failing Test
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