Agent Skills Hub

mutation-test

Run mutation testing to measure test suite effectiveness by introducing code faults and verifying test failure detection.

mutation-testing

Validate test suite effectiveness and uncover weak assertions by introducing code mutations and measuring kill rates. Essential for proving tests genuinely catch bugs rather than just satisfying coverage metrics.

test-driven-development

Enforces disciplined Test-Driven Development (TDD) by requiring a failing test before implementation, ensuring code reliability and preventing premature over-engineering.

playwright-best-practices

Guidance for writing resilient Playwright tests with best practices for locators, assertions, and CI/agent integration.

property-based-testing

Automated guidance for implementing property-based testing (PBT) in software and smart contracts to improve test coverage and edge case detection.

test-writer

Generates comprehensive, best-practice unit tests for functions and classes, supporting multiple frameworks like pytest, unittest, and jest.

performance-security

Optimize React performance, implement security hardening, and ensure WCAG accessibility compliance with automated patterns and checklists.

acceptance-testing

Plan, implement, and execute user acceptance tests (UAT) and end-to-end scenarios to validate requirements against user-visible behavior.

writing-good-tests

Guidance for writing, reviewing, and refactoring software tests, focusing on integration strategies, condition-based waiting, and professional mocking patterns.

flaky-detect

Identify, categorize, and troubleshoot flaky tests by analyzing CI history, execution patterns, and code structure to improve test suite reliability.

regression-testing

Strategic regression testing with intelligent test selection, impact analysis, and continuous regression management for faster, more reliable software delivery.

n8n-expression-testing

Validate n8n expression syntax, perform context-aware testing, detect common pitfalls, and optimize data transformations within your workflows.