Design property-based tests that verify code properties hold for all inputs using automatic test case generation. Use for property-based, QuickCheck, hypothesis testing, generative testing, and...

Write high-quality Rust unit tests following best practices. Use when writing new tests, reviewing test code, or improving test quality. Emphasizes clear naming, AAA pattern, isolation, and...

Build end-to-end automated tests that simulate real user interactions across the full application stack. Use for E2E test, Selenium, Cypress, Playwright, browser automation, and user journey testing.

E2E testing for Clerk apps. Use with Playwright or Cypress for auth flow tests.

Writing tests for GPUI applications. Use when testing components, async operations, or UI behavior.

Inject Doc Detective test specs into documentation source files as inline comments. Use when (1) you have a valid test spec (JSON/YAML) with steps and need to embed them in a source file, (2) the...

Parallel test execution orchestration with intelligent scheduling, retry logic, and comprehensive result aggregation.

File permission test. Use for testing.

Creates test version branches for testing app upgrade functionality. Use when preparing upgrade test builds, testing version migration, or when the user mentions test version, 9005.x.x version...

Design comprehensive test cases using PICT (Pairwise Independent Combinatorial Testing) for any piece of requirements or code. Analyzes inputs, generates PICT models with parameters, values, and...

Senior End-to-End (E2E) Test Architect for 2026. Specialized in Playwright orchestration, visual regression testing, and high-performance CI/CD sharding. Expert in building resilient, auto-waiting...

API contract testing, authentication flows, rate limit handling, and error scenario coverage for n8n integrations with external services. Use when testing n8n node integrations.

Comprehensive n8n workflow testing including execution lifecycle, node connection patterns, data flow validation, and error handling strategies. Use when testing n8n workflow automation applications.

Set up or verify Husky git hooks to ensure all tests run and coverage stays above 80% (configurable) for Node.js/TypeScript projects. This skill should be used when users want to enforce test...

Guides writing bundler tests using itBundled/expectBundled in test/bundler/. Use when creating or modifying bundler, transpiler, or code transformation tests.

Generates tests from features.json test criteria with multi-framework support, coverage analysis, and features.json integration.

Write unit and integration tests for Salvo applications using TestClient. Use for testing handlers, middleware, and API endpoints.

Testing framework

Conduct statistical tests including t-tests, chi-square, ANOVA, and p-value analysis for statistical significance, hypothesis validation, and A/B testing

Write and run API tests with Vitest for endpoints, middleware, and integrations. Use when testing API functionality, request/response validation, or error handling.