單元測試

Master metrics definition, KPI tracking, dashboarding, A/B testing, and data-driven decision making. Use data to guide product decisions.

Creates a battle-tested ChatGPT-style chatbot widget that solves real-world production issues. Features infinite re-render protection, text selection "Ask AI", RAG backend integration, streaming SSE, and comprehensive performance monitoring.

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes

Workflows for the Loopwish web app (Next.js 14 App Router): run dev server, implement pages/components, and validate with lint/format/tests/build.

Help with Rails testing including unit tests, integration tests, fixtures, and debugging test failures. Use when working on tests or debugging test issues.

Modern Python development with uv, FastAPI, Pydantic, and clean architecture. Use for Python project setup, LLM app development, API design, testing strategy, and architecture decisions. Ideal for TypeScript developers transitioning to Python.

AI-powered unified development orchestrator combining debugging, refactoring, performance optimization, code review, testing integration, and profiling into comprehensive development workflows with Context7 integration, TRUST 5 validation, and enterprise-grade automation

Automated hypothesis generation and testing using large language models. Use this skill when generating scientific hypotheses from datasets, combining literature insights with empirical data, testing hypotheses against observational data, or conducting systematic hypothesis exploration for research discovery in domains like deception detection, AI content detection, mental health analysis, or other empirical research tasks.

Chaos engineering for Kubernetes with Chaos Mesh and LitmusChaos. Pod deletion, network chaos, resource chaos, blast radius control, and validation patterns for reliability testing.

Create formal spec-driven MoonBit APIs and test suites. Use when asked to set up a spec.mbt, spec-driven tests, or a formal contract-first workflow (e.g., "set up a formal spec & test suite for Yaml in MoonBit"), including moon.mod.json/moon.pkg.json scaffolding and guidance to implement in separate files.

Practical TDD framework that teaches Red/Green/Refactor, outside-in and inside-out strategies, contract testing, characterization tests for legacy code, UI/API/data layers, concurrency/time/randomness handling, and anti-flakiness techniques. Includes actionable patterns, checklists, and language-specific quick starts.

Enterprise comprehensive code review automation with AI-powered quality analysis, TRUST 5 enforcement, multi-language support, Context7 integration, security scanning, performance analysis, test coverage validation, and automated review feedback generation

Systematic bug hunting combining Sherpa's debugging workflow, Julie's execution tracing, and Goldfish's investigation tracking. Activates for bug fixes with methodical reproduction, test capture, fix, and verification. Use when debugging errors or fixing bugs.

Master full-stack development, QA testing, engineering management, product management, and specialized technical leadership roles.

Find and fix bugs systematically. Use when encountering errors, test failures, or unexpected behavior. Hypothesis-driven debugging to locate root causes and implement minimal fixes.

Enhanced testing infrastructure with TestContext and Page Objects for Playwright. Covers E2E testing patterns, accessibility testing, API testing, and best practices for maintainable test organization.

Expert guide for tracking user analytics, events, conversions, A/B testing, and data-driven insights. Use when implementing analytics, tracking user behavior, or optimizing conversions.

Setup GitHub Actions workflow for running Android tests in CI

Production-tested setup for Tailwind CSS v4 with shadcn/ui, Vite, and React.Use when: initializing React projects with Tailwind v4, setting up shadcn/ui,implementing dark mode, debugging CSS variable issues, fixing theme switching,migrating from Tailwind v3, or encountering color/theming problems.Covers: @theme inline pattern, CSS variable architecture, dark mode withThemeProvider, component composition, vite.config setup, common v4 gotchas,and production-tested patterns.Keywords: Tailwind v4, shadcn/ui, @tailwindcss/vite, @theme inline, dark mode,CSS variables, hsl() wrapper, components.json, React theming, theme switching,colors not working, variables broken, theme not applying, @plugin directive,typography plugin, forms plugin, prose class, @tailwindcss/typography,@tailwindcss/forms

Production-tested setup for Content Collections - a TypeScript-first build tool that transformslocal content files (Markdown/MDX) into type-safe data collections with automatic validation.Use when: building blogs, documentation sites, or content-heavy applications with Vite + React,setting up MDX content with React components, implementing type-safe content schemas with Zod,migrating from Contentlayer, or encountering TypeScript import errors with content collections.Covers: Vite plugin setup, tsconfig path aliases, collection schemas with Zod validation,MDX compilation with compileMDX, transform functions for computed properties, rehype/remark plugins,React component integration with MDXContent, Cloudflare Workers deployment, and production build optimization.Keywords: content-collections, @content-collections/core, @content-collections/vite,@content-collections/mdx, MDX, markdown, Zod schema validation, type-safe content,frontmatter, compileMDX, defineCollection, defineConfig, Vite plugin, tsco