Design, implement, and maintain high‑value TypeScript test suites using popular JS/TS testing libraries. Use this skill whenever the user is adding tests, debugging failing tests, or refactoring...
Execute and manage Rust tests including unit tests, integration tests, and doc tests. Use when running tests to ensure code quality and correctness.
Write and evaluate effective Python tests using pytest. Use when writing tests, reviewing test code, debugging test failures, or improving test coverage. Covers test design, fixtures,...
Test system behavior under extreme load conditions to identify breaking points, capacity limits, and failure modes. Use for stress test, capacity testing, breaking point analysis, spike test, and...
Use when you need to run tests for React core. Supports source, www, stable, and experimental channels.
Produces practical, risk-based testing guidance and minimal test plans for features or changes. Use when user asks what to test, how to pick test cases (boundaries, permissions, state machines),...
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Generate personalized cold email sequences (7-14 emails) with A/B test subject lines, follow-up timing recommendations, and integrated social proof. Creates multi-touch campaigns optimized for...
Use when writing tests that share state. Use when tests depend on other tests. Use when test order matters.
Layered verification for OpenSpec changes. Use when: running tests after implementation, validating specific test layers, or checking test status.
Complete testing guide for Capacitor apps covering unit tests, integration tests, E2E tests, and native testing. Includes Jest, Vitest, Playwright, Appium, and native testing frameworks. Use this...
End-to-end testing patterns and best practices for web applications using Playwright, Cypress, Selenium, and Puppeteer. Covers Page Object Model, test fixtures, selector strategies, async...
Comprehensive test automation specialist covering unit, integration, and E2E testing strategies. Expert in Jest, Vitest, Playwright, Cypress, pytest, and modern testing frameworks. Guides test...
Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD methodology with idiomatic Go practices.
Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD methodology with idiomatic Go practices.
World-class test automation - unit, integration, e2e testing strategies, and the battle scars from flaky tests that broke CI/CD pipelinesUse when "test, testing, unit test, integration test, e2e,...
Procedural Content Generation (PCG) is the art of creating infinite from finite. The challenge isn't making random content - it's making content that feels designed. This skill covers noise...
Comprehensive Flutter testing guidance covering unit tests, widget tests, and integration tests. Use when working with Flutter applications to write unit tests for functions/methods/classes,...
Generate comprehensive Vitest tests for code examples in JavaScript concept documentation pages, following project conventions and referencing source lines
Expert guide for testing Next.js applications with Playwright, Jest, and React Testing Library. Use when writing tests, debugging test failures, or setting up test infrastructure.