Unit Testing

Write failing test first, then minimal code to pass. Red-Green-Refactor cycle.Use when: implementing features, fixing bugs, refactoring code.Triggers: "implement", "add feature", "fix bug", "tdd", "test first","write tests", "test-driven".

Use when designing test strategies, implementing test automation, or optimizing performance

Conversion Rate Optimization patterns beyond A/B testing. Heatmaps, session recordings, funnel analysis, form analytics, exit intent. Data-driven optimization.

Generates comprehensive test files for functions and classes. Use after writing a function, method, or class to quickly create unit tests with edge cases, assertions, and proper test structure. Supports multiple testing frameworks (pytest, unittest, jest, etc.) and follows testing best practices (AAA pattern, mocking, fixtures).

App Store Connect 자동화 스킬. JWT API와 Playwright 브라우저 자동화를 결합한 하이브리드 방식. 앱 정보 조회, 빌드 관리, TestFlight 배포, 스크린샷 업로드, 앱 제출 워크플로우 지원. jelly-ios-skill과 연동하여 iOS 빌드 후 자동 배포 가능.

Generate and manage static audio files for Bob The Skull using ElevenLabs TTS. Use when creating greetings, startup messages, error responses, or test audio. Handles generation, naming, directory structure, and cross-repo syncing.

Systematic test debugging with 5-phase investigation workflow. Use when debugging test failures, investigating complex errors, or when AI consultation would help. Uses native test commands with optional AI consultation for complex failures.

C++23 best practices with Google Test 1.15, clang-format 19, and modern C++ standards.

React component testing with Vitest and Testing Library. Use when writing unit tests for components.

Modern Rust features from versions 1.80-1.92. Use when writing new code, reviewing for modern idioms, or upgrading codebases to use latest stable features. Reference for what's available in Rust 1.92.

Load executive candidate CSVs into Airtable People table with intelligent schema detection, flexible column mapping (20+ variations), duplicate checking, and bio file loading. Handles any CSV format with fuzzy matching. Dry-run preview mode for safe testing. Production-ready for FirstMark demo day.

Generate complete, production-ready Claude Code Skills based on business domain and use cases. Use this skill when you want to CREATE NEW SKILLS, BUILD SKILL PACKAGES, or GENERATE AUTOMATION TOOLS for any business domain. Creates self-contained skill packages with SKILL.md, Python scripts, test data, and sample prompts following best practices.

Generates comprehensive unit tests for the selected code. It follows the project's testing conventions, ensures high coverage, and handles edge cases.

Create or audit requirements-to-design-to-code-to-test traceability. Builds atraceability matrix (REQ → design/ADR → implementation files → tests →evidence) and flags gaps (unimplemented requirements, untested changes,undocumented decisions). Use when you need a requirements traceability checkfor a PR/release, regulated/compliance work, or when requirements are driftingfrom implementation.

Python development for scientific computing and SciTeX projects. Includes testing, debugging, ML practices, and environment management.

Custom Hypothesis strategy patterns for property-based testing. Activated when designing test data generators or property tests.

Guide for building applications with @fpkit/acss components. This skill should be used when composing custom React components from fpkit primitives, validating CSS variable naming conventions, extending fpkit components with custom behavior, or ensuring accessibility compliance in fpkit-based applications. Use when the user needs help with component composition patterns, CSS customization, or accessibility testing. Not for developing the @fpkit/acss library itself.

Ensure Python classes include appropriate, developer-friendly dunder methods—especially __repr__ and __str__. Use when: (1) Writing or modifying Python class definitions in .py files, (2) Refactoring existing Python classes, (3) Adding or improving __repr__, __str__, or natural arithmetic/comparison/container dunders. Do NOT use for: tests, fixtures, mocks, stubs, non-Python files (YAML, JSON, TOML), auto-generated code vendor libraries, or when user explicitly asks not to modify dunders. Ignored paths: tests/, *_test.py, test_*.py, .venv/, build/, dist/, migrations/, __init__.py.

Kumo development assistant for MySQL database management tool. Use when working on Kumo features, understanding architecture, writing tests, or navigating the codebase. Helps with React components, API endpoints, database features, and Electron app development.

This skill should be used when users need to generate realistic fake/test data for recruitment systems including clients, candidates, jobs, and placements. Generates UK-focused CSV data matching ProActive People's business model with customizable record counts and industry sectors.