Unit Testing

Analyze and reorganize git branch history into logical, shippable commits. Automatically identifies patterns like RuboCop fixes, test iterations, and implementation evolution, then creates clean commit history with comprehensive messages.

Expert guidance for software testing and quality assurance. Use when the user asks to write tests, create test plans, review code for bugs, perform code reviews, write test cases, set up testing frameworks, debug issues, validate requirements, create bug reports, perform regression testing, or improve test coverage. Triggers on testing, QA, quality assurance, test cases, bug reports, test automation, unit tests, integration tests, E2E tests, test coverage, debugging, code review.

Ensure backend build readiness for Espresso Engineered. Use when backend code/config changes are made or when a feature/task is wrapping up to suggest running `npm run build:backend` (and tests only if requested).

Ruby on Rails 8 and Ruby 3.2 backend development. Use when working on Rails applications, API development, ActiveRecord models, database migrations, service objects, serializers, RSpec testing, or Ruby code optimization. Triggers on Rails-specific patterns like controllers, models, migrations, jobs, concerns, serializers, and Rails configuration.

Execute golden tests that compare the extracted OCaml interpreter against MLIR toolchain output. Use when validating semantics implementation or debugging differences between formal semantics and MLIR behavior.

WordPress Playground for instant browser-based WordPress testing. Use for quick demos, plugin testing, or ephemeral development environments without Docker.

Generate structured prompts for frontend development tasks following established patterns. Use when the user requests prompts for wireframes, UI implementation, data binding, or routing functionality in React/Next.js projects with specific formatting requirements (Cursor rules, file paths, test-driven development).

Web research and literature search capabilities for external resources.LOAD THIS SKILL WHEN: User says "搜尋", "search", "找資料", "查詢", "檢索", "web search", "網路搜尋" | needs external documentation | research task | API reference lookup | technology comparison | wants latest information.CAPABILITIES: Technical docs (MDN, GitHub, Stack Overflow), academic papers (PubMed integration), API documentation, real-time web data via fetch_webpage, structured search results.

Expert in authoring Gherkin-compliant behavior specifications (Given, When, Then). Use when defining executable scenarios for feature specifications or acceptance tests.

Create or update pytest coverage for the tic-tac-toe project, including win/draw detection, move validation, bot legality/optimality, and mixed human/bot turn flow. Use when adding or editing tests under the tests/ directory.

Use when implementing any feature or bugfix, before writing implementation code

Standard Operating Procedure for /preview phase. Covers manual UI/UX testing on local dev server before shipping.

Orchestrate KB development workflow from request to completion.Coordinates skills in sequence: kb → plan → test → validate → complete → reflect → inbox.WORKFLOW:1. LOOKUP - /pmc:kb (check existing PRDs, patterns, code maps)2. PLAN - /pmc:plan + /pmc:plan-validation + /pmc:lint-kb3. IMPLEMENT - /pmc:test (TDD cycle: RED → GREEN → REFACTOR)4. VALIDATE - /pmc:validate + /pmc:ticket-status5. COMPLETE - /pmc:complete (write 5-final.md, commit)6. REFLECT - /pmc:reflect + /pmc:lint-kb7. INBOX - /pmc:inbox (process pending items)Use when:- User says "implement", "build", "develop", "work on"- Starting new feature or phase work- Need guided workflow from start to finish- User says "dev workflow", "full cycle"

Write unit tests for JavaScript files using Node.js native test runner. Use when creating new scripts, fixing bugs, or when prompted about missing tests.

Master JMESPath for Kyverno policies. Query nested resources, build complex conditions, and validate Kubernetes workloads with production-tested patterns.

Frontend development patterns for React, Vue, and TypeScript including component composition, state management (Redux, Zustand, Pinia), hooks patterns, performance optimization, testing with Jest/Vitest, and build tools (Vite, webpack). Use when building frontend applications, optimizing performance, managing state, or setting up testing.

Set up CI/CD pipelines with GitHub Actions. Use when creating new projects, adding automation, or when manual verification becomes bottleneck. Covers lint, test, build, deploy automation.

Complete TDD workflow for implementing business logic (use cases) and API endpoints that make tests pass. Covers Zod safeParse validation, async/await patterns, Next.js API routes, service orchestration, and Clean Architecture compliance.

Run CLI dev tools for game development (world inspection, benchmarks, assets, simulation). Use when user wants to 'check performance', 'inspect world', 'validate assets', 'stress test', or asks about new CLI features.

Use when writing narrative memos, 6-pagers, 1-pagers, press releases, or PRFAQs in Amazon style. Applies Amazon's no-PowerPoint writing standards with data over adjectives, active voice, and the "so what" test.