Unit Testing

Design production-grade Terraform modules for home lab infrastructure with HA patterns, proper structure, variable design, and Proxmox optimization. Use when creating new modules, implementing multi-master Kubernetes clusters, load balancers, or building reusable infrastructure components. Includes module structure, HA implementations, cost optimization, and testing patterns.

Enforces zero-tolerance test quality through two-phase testing strategy (Focus → Stable → Regression). Proactively activates when testing context detected. Blocks failures, enforces coverage thresholds (70% min, 85% actors, 80% business logic), and provides gamified feedback. Implements "testing is art in efficiency" - fast module feedback then comprehensive regression.

Reference and maintain consistency with the project's technical stack including frameworks, runtimes, languages, frontend libraries, databases, ORMs, testing tools, deployment platforms, and third-party services. Use this skill when making technology choices or selecting libraries that need to align with the existing stack, adding new dependencies to package.json, pnpm-workspace.yaml, requirements.txt, or other dependency management files, implementing features using the project's established frameworks, ORMs, databases, or APIs, writing code in the project's primary language and runtime environment, setting up testing infrastructure with the project's test frameworks, configuring CI/CD pipelines or deployment settings, integrating third-party services that match the project's existing integrations, ensuring compatibility with the project's build tools and bundlers, or ensuring any technical implementation decision aligns with the project's established technologies, architectural patterns, and conventions doc

테스트 실행 및 품질 검증. Use when:(1) 테스트 실행 요청, (2) 변경 후 검증 필요,(3) 커버리지 확인, (4) CI 전 로컬 검증.

인프라 계층(JpaEntity, Adapter, Repository) TDD 개발 지침. Red-Green-Refactor 사이클을 통해 테스트 주도 개발을 수행합니다. 실제 DB(Testcontainer)를 사용하며 Mocking하지 않습니다.

Comprehensive NestJS framework skill for building scalable server-side applications. Use for TypeScript backend development with controllers, providers, modules, dependency injection, middleware, guards, interceptors, pipes, database integration (MikroORM + MongoDB), GraphQL, microservices, testing, and API documentation. Also triggers when working with NestJS TypeScript files (.ts), NestJS module files, nest-cli.json, or NestJS project structure. Example triggers: "Create NestJS controller", "Set up dependency injection", "Add middleware", "Create GraphQL resolver", "Build microservice", "Write NestJS test", "Set up database module"

Write and update RSpec tests following BDD principles with behavior-first approach, characteristic-based context hierarchy, and happy path priority. **Activate when:** user mentions RSpec/specs/testing, works with *_spec.rb files, asks to write/add/update/fix tests, or requests test coverage. Ensures tests describe observable behavior, not implementation details.

Expert on testing Move smart contracts on Aptos, including unit tests, integration tests, Move Prover formal verification, debugging strategies, and test coverage. Triggers on keywords move test, unit test, integration test, move prover, formal verification, debug, coverage, assert, expect

Unit testing patterns with Vitest. Use when writing tests for TypeScript code.

Conventional Commits 1.0.0 に準拠した日本語コミットメッセージを作成します。タイプ（feat/fix/docs/style/refactor/perf/test/build/ci/chore）の選択、スコープの設定、破壊的変更の記載を行います。git commit を行う際、コミットメッセージの作成を依頼されたとき、変更内容を要約してコミットしたいときに使用してください。

Expert Python development focusing on clean code, comprehensive testing, performance optimization, and best practices with detailed documentation

Goのテストコードを生成する際に使用。テーブル駆動テスト、testify/assert使用、命名規則TestStructName_MethodNameを適用。Goのユニットテスト、統合テストを書く場合に使用。

Master testing strategies, quality assurance, and performance optimization. Learn to ensure plugins are reliable, performant, secure, and accessible.

Express + TypeScript starter with Biome, Docker, and Vitest.

TDD（テスト駆動開発）に基づいたテストコード作成スキル。Red-Green-Refactorサイクルを実践し、t-wadaのベストプラクティスに従ってテストファーストで高品質なテストを作成します。Backend（Go test）とFrontend（Jest）の両方に対応。

Generate, explain, and test regular expressions with examples and test cases. Use when creating regex patterns or understanding complex regular expressions.

CI/CD pipeline configuration for monorepo testing including GitHub Actions workflows, Turborepo integration, two-tier quality gates (typecheck→lint→test→build), preview branch integration, retry logic, and environment management. Use when configuring CI pipelines, troubleshooting CI test failures, implementing preview deployments, or optimizing CI performance. Triggers on: CI configuration, github actions testing, CI pipeline, turborepo CI, quality gates, preview integration, CI troubleshooting.

A minimal test skill that demonstrates the basic skill structure

Design, analyze, and evaluate philosophical thought experiments. Use when: creating new thought experiments to probe specific intuitions, analyzing existing thought experiments for hidden assumptions, generating variants that isolate different variables, stress-testing philosophical positions through scenarios, exploring edge cases. Triggers: 'thought experiment', 'imagine', 'suppose', 'hypothetical', 'what if scenario', 'intuition pump', 'trolley problem', 'zombie', 'Mary's room', 'Chinese room', 'experience machine', 'teletransportation', 'original position', 'veil of ignorance', 'Gettier case'.

This skill should be used when the user asks to "create a decorator", "write a decorator", "add presentation logic", "format model data for views", "use Draper", "test a decorator", "write decorator spec", or mentions separating presentation from business logic in Rails. Provides guidance on Draper gem best practices for Rails applications.