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Overview

This skill improves test reliability and coverage without changing product behavior.

It focuses on adding the smallest useful tests, fixing instability, and increasing confidence in the system.

1. Choose the Right Target First

Before writing tests:

• Identify high-risk areas (edge cases, errors, async logic).
• Prioritize uncovered or weakly tested behavior.
• If unclear, ask what should be protected.
• Avoid testing low-impact or trivial code first.

Do not write tests without a clear purpose.