Why does this skill prefer integration tests over unit tests?

Integration tests verify how components work together in real scenarios, catching the edge cases and communication bugs that unit tests often miss due to over-mocking.

Will these tests slow down my CI/CD pipeline?

No, the skill is designed with a speed budget in mind, aiming for individual integration tests under 500ms and keeping the full suite execution under one minute whenever possible.

Can I still use this for complex algorithms?

Yes. While the skill prefers integration tests for general flows, it specifically recommends unit tests for pure functions with complex logic, such as sorting, parsing, or heavy calculations.

How does this skill handle mocking?

It recommends mocking only external services, time-dependent behavior, and non-deterministic operations, while favoring real databases and internal services for more accurate results.

Pragmatic Test Writer

Name: Pragmatic Test Writer
Author: oxhagolli

byoxhagolli

•

Security & Testing

Generates high-quality integration and unit tests that focus on real-world behavior while maintaining a fast and maintainable test suite.

The Pragmatic Test Writer skill empowers Claude to author robust test suites by prioritizing integration tests over isolated unit tests, ensuring that code behaves as expected in real-world scenarios. It follows a strict philosophy that tests should reflect actual usage patterns, avoid excessive mocking of internal dependencies, and remain lightning-fast to ensure developer productivity. By focusing on critical business logic, security-sensitive paths, and component integration points, this skill helps developers build reliable software without the maintenance burden of fragile, implementation-heavy tests.

Key Features

011 GitHub stars

02Prioritizes integration tests to catch real-world bugs over internal logic errors.

03Implements a minimal mocking strategy to ensure tests verify actual system behavior.

04Enforces a strict speed budget to keep the entire test suite running in under 60 seconds.

05Focuses on pragmatic code coverage for business logic rather than arbitrary metric chasing.

06Generates structured test plans including type, scope, and specific mocking strategies.

Use Cases

01Optimizing slow test suites by replacing sleeps and heavy mocks with efficient testing patterns.

02Adding comprehensive test coverage to newly implemented features or APIs.

03Refactoring legacy code by establishing behavioral integration tests first.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add oxhagolli/clawdskillz test-writer

For use in Claude.ai and ChatGPT

Download Skill