Claude Code Hook Testing Guide
Provides a standardized framework and testing patterns for validating Claude Code plugin hooks using pytest and UV.
This skill equips developers with a robust testing methodology for Claude Code plugin hooks, focusing on Command and Prompt hook types. It offers ready-to-use patterns for subprocess-based testing, JSON validation, and edge-case handling, ensuring that custom automation scripts interact correctly with Claude via stdin/stdout. By leveraging the UV package manager and pytest, it simplifies the creation of self-executing test suites that maintain high reliability for custom Claude Code extensions and dotfile integrations.
Key Features
01Multi-scenario parameterization for complex hook logic
02JSON input/output validation and edge-case handling
0340 GitHub stars
04Pre-configured UV shebangs for self-executing test scripts
05Subprocess-based testing patterns for Command and Prompt hooks
06Minimalist testing philosophy for rapid plugin development
Use Cases
01Regression testing for custom Claude Code plugins during infrastructure updates
02Testing prompt hooks to ensure they provide appropriate context or restrictions to Claude
03Validating that custom command hooks correctly block or allow specific CLI tools