What testing framework does this skill use?

This skill primarily utilizes pytest, the industry-standard testing framework for Python, to implement TDD workflows and ensure comprehensive test coverage.

How does the Red-Green-Refactor process work with Claude?

When active, Claude will first write a failing test (Red), then write the minimum implementation code to pass the test (Green), and finally optimize the code (Refactor) while ensuring the test suite remains passing.

Does it support Pydantic model testing?

Absolutely. It provides specific guidance for testing Pydantic models to ensure data validation, serialization, and schema integrity are maintained.

Can I use this for FastAPI projects?

Yes, it includes specialized patterns for testing FastAPI endpoints, including async support, dependency injection, and HTTP status code validation.

Python TDD Expert

Name: Python TDD Expert
Author: greyhaven-ai

bygreyhaven-ai

•

Security & Testing

Implements robust Python features using a strict test-driven development methodology with pytest and FastAPI integration.

This skill empowers Claude to follow a rigorous red-green-refactor cycle for Python development, ensuring high code quality and comprehensive test coverage from the start. It specializes in writing tests first using the pytest framework, handling complex FastAPI endpoint testing, and validating Pydantic models. Whether you are building a new backend service or refactoring existing logic, this skill provides the templates and best practices needed to drive design through tests and minimize technical debt.

Key Features

01Test coverage optimization and best practices

02FastAPI endpoint and dependency injection testing

03Pydantic model validation and schema testing

0415 GitHub stars

05Comprehensive pytest integration and template generation

06Strict Red-Green-Refactor workflow implementation

Use Cases

01Ensuring data integrity through rigorous Pydantic model testing

02Building robust REST APIs with FastAPI using a test-first approach

03Refactoring legacy Python codebases while maintaining full test coverage

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add greyhaven-ai/claude-code-config tdd-python

For use in Claude.ai and ChatGPT

Download Skill