testing▌

Comprehensive testing strategy design covering unit, integration, E2E testing, and TDD practices. \n \n Implements test pyramid structure with recommended ratios: 70% unit tests, 20% integration, 10% E2E tests \n Provides Given-When-Then patterns for unit testing, mocking strategies for external dependencies, and API endpoint testing examples \n Includes E2E testing guidance using Playwright for complete user flow validation and TDD red-green-refactor cycle methodology \n Covers CI/CD integratio

Detect the project type, generate the right Vitest configuration, and produce working test infrastructure. Not a reference card — this skill creates files.

webapp-testing

Bypass bot detection and CAPTCHA triggers using rebrowser-playwright with stealth techniques. \n \n Uses real GPU rendering, removes WebDriver signatures, and patches fingerprinting vectors to pass bot detection tests like bot.sannysoft.com \n Requires headed mode ( headless: false ) and real Chrome browser ( channel: 'chrome' ) to be effective \n Includes addInitScript to remove navigator.webdriver property, the most common detection method \n For Python, recommends undetected-chromedriver over

Provide systematic methodologies for identifying and exploiting Insecure Direct Object Reference (IDOR) vulnerabilities in web applications. This skill covers both database object references and static file references, detection techniques using parameter manipulation and enumeration, exploitation via Burp Suite, and remediation strategies for securing applications against unauthorized access.

Systematic approach to backtesting trading strategies based on professional methodology that prioritizes robustness over optimistic results.

Delivers changes incrementally to manage large features effectively.

Comprehensive testing specialist for functional, performance, and security test design and execution. \n \n Covers unit, integration, E2E, performance (k6, Artillery), and security testing (OWASP) with structured workflows from scope definition through reporting \n Enforces test quality standards: meaningful assertions, isolated dependencies, edge-case coverage, and flaky-test remediation \n Provides reference guides for TDD methodology, testing anti-patterns, automation frameworks, and QA pract

Tests in real browsers using Chrome DevTools MCP for debugging and inspecting web applications.

Comprehensive testing strategies for Python using pytest, fixtures, mocking, and test-driven development. \n \n Covers unit, integration, functional, and performance testing with the AAA pattern (Arrange, Act, Assert) for test structure \n Includes 10 fundamental and advanced patterns: basic tests, fixtures with setup/teardown, parameterization, mocking, exception handling, async testing, monkeypatching, temporary files, custom fixtures, and property-based testing \n Provides test design princip