Can it generate regression tests for bug fixes?

Yes, simply trigger it after a fix by saying 'create regression test' to ensure the bug doesn't reappear in the future.

Which testing frameworks does Testing Builder support?

It supports popular frameworks like Jest, Vitest, Pytest, and Playwright, and can adapt to others by learning from your existing codebase patterns.

Does it handle UI testing?

Yes, it includes specialized patterns for React Testing Library and Playwright to cover frontend components and full user workflows.

How does it know my preferred testing style?

It uses memory and context-manager to recall previous testing patterns, assertion styles, and naming conventions used in your project.

Testing Builder

Name: Testing Builder
Author: jackspace

byjackspace

•

Security & Testing

Generates comprehensive unit, integration, and E2E test suites automatically while learning from your project's specific testing style.

Testing Builder is a specialized Claude Code skill designed to eliminate the friction of writing manual tests by automatically generating robust test suites. It analyzes your codebase to identify logic branches and edge cases, recalls your preferred frameworks like Vitest or Pytest from memory, and crafts high-coverage tests that match your existing patterns. Whether you are fixing bugs and need regression tests or building new features that require E2E validation, this skill ensures consistent quality and coverage without the tedious manual setup, making it an essential tool for maintaining high-velocity development workflows.

Key Features

01Memory-driven style matching for frameworks like Vitest, Pytest, and Playwright

02One-command regression test creation after bug fixes

032 GitHub stars

04Smart coverage gap analysis to ensure no scenario is left untested

05Intelligent code analysis to identify logic branches and edge cases

06Automatic generation of unit, integration, and end-to-end test suites

Use Cases

01Instantly generating unit tests for complex utility functions

02Setting up full E2E Playwright workflows for new feature releases

03Creating regression tests immediately after resolving a reported bug

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jackspace/claudeskillz testing-builder

For use in Claude.ai and ChatGPT

Download Skill