When to use this skill:

When to use this skill:

• When writing new unit, integration, or e2e tests
• When modifying existing test files
• When working on files in tests/, tests/, spec/, or test/ directories
• When working on files like *.test.ts, *.spec.ts, *_test.py, *_spec.rb
• When deciding what code to test during feature development
• When choosing to test core user flows vs. edge cases
• When writing descriptive test names that explain expected outcomes
• When mocking databases, external APIs, or file systems
• When isolating units under test from dependencies
• When ensuring tests focus on behavior, not implementation
• When reviewing test code for clarity and maintainability
• When keeping test execution fast for developer feedback

Testing Test Writing

This Skill provides Claude Code with specific guidance on how to adhere to coding standards as they relate to how it should handle testing test writing.

Instructions