QA Skills Directory QA Skills is a curated directory of testing-specific skills for AI coding agents (Claude Code, Cursor, Copilot, etc.).
This repository also configures its own agents. See what qaskills tells them →
Skill Claude CodeCodex
Measure and enforce test coverage with Istanbul/nyc, c8, Jest, and Vitest. Covers branch versus line coverage, per-directory thresholds, CI gates, and correctly excluding generated code from reports.
Skill Claude CodeCodex
Master code review best practices with constructive feedback patterns, quality assurance standards, review checklists, security considerations, and collaborative improvement techniques for high-quality software delivery.
Skill Claude CodeCodex
Expert-level Codeception testing skill for PHP applications. Covers acceptance, functional, and unit testing with the Actor pattern, BDD-style syntax, Page Objects, API testing, and database helpers.
Skill Claude CodeCodex
Advanced security analysis using GitHub CodeQL to find zero-day vulnerabilities, injection flaws, and security anti-patterns in source code.
Skill Claude CodeCodex needs its repo
Evaluate interface complexity by measuring information density, decision points, visual hierarchy, and task completion paths to reduce user cognitive burden.
Skill Claude CodeCodex
Write personalized cold outreach emails to hiring managers and founders - specific, human, not a pitch deck.
Skill Claude CodeCodex
Automated compliance testing using Open Policy Agent, Chef InSpec, and custom policy engines for security baseline validation.
Skill Claude CodeCodex
Isolating and testing individual UI components with dependency mocking, state injection, and visual snapshot verification.
Skill Claude CodeCodex
Testing concurrent code including race condition detection, deadlock prevention, thread safety verification, and parallel execution correctness.
Skill Claude CodeCodex
Testing application configurations including environment variable validation, feature flag combinations, config file parsing, and default value verification.
Skill Claude CodeCodex needs its repo
Systematically detect, capture, and categorize browser console errors, warnings, and unhandled exceptions during automated test execution.
Skill Claude CodeCodex
Contract-first testing approach using Pact, Spring Cloud Contract, or Dredd for ensuring API consumer-provider compatibility.
Skill Claude CodeCodex needs its repo
Generate consumer-driven contract tests using Pact framework to verify API provider-consumer compatibility and prevent integration breaking changes.
Skill Claude CodeCodex
Contract testing for GraphQL APIs including schema breaking change detection, query compatibility testing, and federated schema validation.
Skill Claude CodeCodex needs its repo
Consumer-driven contract testing skill using Pact, covering consumer tests, provider verification, Pact Broker integration, and CI/CD workflows.
Skill Claude CodeCodex
Testing cookie and session management including secure flags, SameSite policy, session fixation, timeout behavior, and cross-domain cookie handling.
Skill Claude CodeCodex
Effective patterns for using GitHub Copilot to generate, refactor, and maintain test code including prompt engineering for test generation, Copilot Chat for debugging, inline suggestions for assertions, and workspace context optimization.
Skill Claude CodeCodex
Testing Cross-Origin Resource Sharing configurations for misconfigurations, overly permissive policies, and credential handling vulnerabilities.
Skill Claude CodeCodex
Create personalized, compelling cover letters from resume and job description.
Skill Claude CodeCodex
Balance visual design with ATS compatibility for creative roles.
Skill Claude CodeCodex
Testing scheduled tasks and cron jobs including execution timing, idempotency, failure recovery, overlap prevention, and timezone handling.
Skill Claude CodeCodex
Automated cross-browser testing across Chrome, Firefox, Safari, and Edge with visual comparison, feature detection, and polyfill verification.
Skill Claude CodeCodex
Content Security Policy testing and validation to prevent XSS attacks, data injection, and clickjacking through proper CSP header configuration.
Skill Claude CodeCodex
Author effective Cursor rules in .cursor/rules/.mdc - YAML frontmatter (description, globs, alwaysApply), the four rule types, scoped QA rules, subagents, and structure that actually steers the model.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: