Unit Testing

Find the most recently downloaded Fidelity and Tastytrade portfolio CSV files from Downloads directory. Use when you need to locate the latest portfolio data files before analysis or processing.

Interactive browser automation via Chrome DevTools Protocol. Use when you need to interact with web pages, test frontends, or when user interaction with a visible browser is required.

Orchestre agents TEST/DOC pour validation tâche, calcule score /100, génère 3 rapports, commit auto

Build mobile-first, responsive layouts that adapt across screen sizes. Use this skill when implementing breakpoints, fluid layouts, or touch-friendly interfaces. When working on files with media queries, responsive utilities, or layout components. When using rem/em units, percentage widths, or viewport-relative sizing. When optimizing for mobile performance or testing across device sizes.

Automates browser interactions using Playwright CLI and templates - takes screenshots, generates PDFs, clicks elements, fills forms, monitors console/network. Use when testing web pages, automating browser tasks, or when user mentions screenshots, web testing, form automation, or Playwright

Orchestrates EUFM monetization: pricing strategy, funnel optimization,revenue projections, and marketing execution. Targets €50K bootstrap in30 days and €4.5M-12M ARR within 12 months by testing pricing models,tracking customer acquisition metrics, and aligning constitutional guardrailswith data-driven growth tactics.

Introduce test-driven development to beginners with simple examples

Comprehensive mobile DevOps workflow that orchestrates mobile application development, CI/CD for mobile, app store deployment, and mobile device testing. Handles everything from mobile app build automation and testing to app store submission, monitoring, and mobile-specific DevOps practices.

Test pyramid approach with unit, integration, and load tests. DI enables testability. Use vitest-mock-extended for typed mocks.

Refactor with tests first, one change at a time, never mix refactoring with bug fixes or new features

A test local skill for Codex. Use when testing Codex-specific local skills.

指定されたコンポーネントのテストを設計する。

Use for Python development requiring async programming, type system expertise, testing patterns, or performance optimization.

Agent Skill: Systematic TYPO3 extension upgrades to newer LTS versions. Covers Extension Scanner, Rector, Fractor, PHPStan, and testing. Use when upgrading extensions to newer TYPO3 versions or fixing compatibility issues. By Netresearch.

Ljung-Box portmanteau tests for model diagnostics and residual analysis

Write strategic, focused tests for critical user flows and core functionality using modern testing frameworks, focusing on behavior over implementation. Use this skill when creating test files, writing unit tests, integration tests, or end-to-end tests in test directories (tests/, __tests__, spec/, *.test.js, *.spec.py). Apply this skill when testing core user workflows and business-critical features, implementing test-driven development (TDD) with red-green-refactor cycles, mocking external dependencies for isolated unit tests, using clear descriptive test names that explain expected behavior, following arrange-act-assert patterns, and ensuring tests run fast and independently. This skill prioritizes testing what matters most (primary user flows) while deferring edge cases and non-critical paths until later, emphasizes behavior testing over implementation details to reduce brittleness, and uses modern frameworks like Jest, Playwright, Cypress, pytest, RSpec, or Testing Library for reliable, maintainable test

Comprehensive Go testing strategies including table-driven tests, testify assertions, gomock interface mocking, benchmark testing, and CI/CD integration. Use when writing test suites, setting up testing infrastructure, or ensuring code quality.

Permanent vs temporary test organization and immutable contract philosophy. Use when creating, modifying, or reviewing tests.

Flutter testing patterns with mocktail. Covers unit testing, widget testing, and BLoC/Cubit testing. Use when writing tests or setting up test infrastructure.

Testing and quality validation for Flutter code.USE WHEN: creating tests, verifying coverage, running E2E tests,validating code quality, checking test coverage thresholds.Minimum coverage: 80% overall, 95% services, 70% widgets.Examples:<example>Context: The user implemented a new feature.user: "I've just implemented the new itinerary creation service"assistant: "I'll use testing-agent to generate comprehensive tests and ensure quality."<commentary>New code needs testing - use testing-agent.</commentary></example><example>Context: The user wants to run E2E tests.user: "Run the E2E tests to validate the login flow"assistant: "I'll use testing-agent to execute E2E tests with MCP Chrome DevTools."<commentary>E2E testing is a testing-agent responsibility.</commentary></example>