code-reviewer
보안 스캔, 품질 지표 및 모범 사례 분석을 포함한 자동화된 코드 리뷰입니다. 다음을 위한 코드 리뷰 시 사용합니다: (1) 보안 취약점 및 일반적인 공격 벡터, (2) 코드 품질 이슈 및 유지보수 문제, (3) 성능 병목 현상 및 최적화 기회, (4) 모범 사례 및 디자인 패턴, (5) 테스트 커버리지 및 테스트 전략, (6) 문서 품질 및 완전성
coding-conventions
.NET/C#의 코딩 규약, 명명 규칙, 레이아웃, C# 12/13/14의 최신 기능 활용 가이드라인을 정의합니다. C#/.NET 코드 작성 시, 클래스·메서드 명명 시, 코드 포맷팅 시, 또는 사용자가 코딩 규약, 명명 규칙, C# 모범 사례, Primary Constructors, Collection Expressions, field 키워드에 대해 언급했을 때 사용합니다.
csharp-async-patterns
Task, ValueTask, async streams, cancellation 등 C# async/await 패턴을 사용할 때 활용합니다. 비동기 C# 코드를 작성할 때 사용합니다.
csharp-developer
모던 .NET 개발, ASP.NET Core 및 클라우드 네이티브 애플리케이션을 전문으로 하는 전문가 수준의 C# 개발자입니다. C# 14 기능, Blazor 및 크로스 플랫폼 개발을 마스터했으며 성능과 Clean Architecture를 강조합니다.
docker-workflow
멀티 스테이지 빌드(multi-stage builds), docker-compose 오케스트레이션, 이미지 최적화, 디버깅 및 운영 모범 사례를 포함하는 포괄적인 Docker 컨테이너화 워크플로우입니다. 애플리케이션 컨테이너화, 개발 환경 구축 또는 Docker 배포 시 사용합니다.
spec
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agent-skill-templates
Comprehensive templates, patterns, and best practices for creating Claude Code subagents and skills. Use when building new agents/skills or need reference examples for proper structure and formatting.
django-conventions
Comprehensive Django best practices covering project structure, models (field choices, Meta options, managers, QuerySets, migrations), views (CBVs vs FBVs, generic views), Django REST Framework (serializers, ViewSets, permissions), forms, templates, security (CSRF, XSS, SQL injection), performance (N+1 queries, select_related, prefetch_related, caching), testing, and common anti-patterns. Essential reference for Django code reviews and development.
fastapi-patterns
Comprehensive FastAPI best practices, patterns, and conventions for building production-ready Python web APIs. Covers application structure, async patterns, Pydantic models, dependency injection, database integration, authentication, error handling, testing, OpenAPI documentation, performance optimization, and common anti-patterns. Essential reference for FastAPI code reviews and development.
java-best-practices
Comprehensive Java development best practices covering SOLID principles, DRY, Clean Code, Java-specific patterns (Optional, immutability, streams, lambdas), exception handling, collections, concurrency, testing with JUnit 5 and Mockito, code organization, performance optimization, and common anti-patterns. Essential reference for uncle-duke-java agent during code reviews and architecture guidance.
python-async-patterns
Comprehensive guide to Python async/await patterns, best practices, and anti-patterns. Covers asyncio fundamentals, coroutines, async context managers, task management, common libraries (aiohttp, aiofiles, asyncpg), framework integration (FastAPI, Django), performance considerations, and proper exception handling. Use when reviewing or writing asynchronous Python code.
python-testing-standards
Comprehensive Python testing best practices, pytest conventions, test structure patterns (AAA, Given-When-Then), fixture usage, mocking strategies, code coverage standards, and common anti-patterns. Essential reference for code reviews, test writing, and ensuring high-quality Python test suites with pytest, unittest.mock, and pytest-cov.
python-type-hints-guide
Comprehensive reference guide for Python type hints, static type checking with mypy, modern type annotation patterns (PEP 484, 585, 604, 612, 613), and type hint best practices for Python 3.9+. Use during code reviews to ensure proper type annotation usage, evaluate mypy configuration, and identify type hint anti-patterns.
sdlc-repository-templates
Templates, standards, and structure requirements for generating SDLC approach learning repositories. Use when creating new methodology learning repositories, artifact documentation, or validating repository structure.
spring-framework-patterns
Comprehensive Spring Framework and Spring Boot best practices including dependency injection patterns, bean lifecycle and scopes, REST API development, Spring Data JPA, service layer design, Spring Security, testing strategies, caching, AOP, async processing, error handling, and common anti-patterns. Essential reference for code reviews and Spring Boot application development.
commit
Use when asked to create a git commit, split changes into commits, or write a commit message. Prefer small commits that are easy to review. Follow this repo's commit message pattern when clear from recent history or touched-path history; otherwise default to conventional commits. Never commit gitignored, ephemeral, generated, local-only, or secret files.
grill-me
Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get grilled on their design, or mentions "grill me".
librarian
Use for code research that needs dependency internals, upstream implementation examples, or external prior art. Always delegate to a subagent that investigates with opensrc and web search, then return only distilled findings, versions, paths, and links.
ui-expert
Build, refine, or review web UI/UX with strong visual taste, interaction design, accessibility, and front-end implementation quality. Use whenever the user wants a page, component, layout, design system, dashboard, landing page, form, navigation, responsive behavior, styling pass, UX polish, accessibility improvement, motion pass, or asks to make a web interface look or feel better. Framework-independent: think in HTML, CSS, and JavaScript primitives first, then adapt to the stack at hand.
capture-skill
Capture learnings, patterns, or workflows from the current conversation into a new or existing skill. Use when the user wants to save what was learned, discovered, or built during a conversation as a reusable skill for future sessions. Triggers include "capture this as a skill", "save this for next time", "turn this into a skill", or when a useful workflow, pattern, or piece of domain knowledge emerged during the conversation.
fakturoid
Czech invoicing API integration for Fakturoid. Use when the user needs to create, manage, or retrieve invoices, contacts/subjects, or expenses from Fakturoid. Supports OAuth 2.0 authentication, invoice creation with Czech tax compliance (IČO, DIČ, VAT), PDF downloads, payment tracking, expense management, inventory, recurring invoices, webhooks, and invoice templates (generators). Triggers on mentions of Fakturoid, Czech invoicing, IČO/DIČ, or invoice management tasks.
agent-browser
Automates browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, or extract information from web pages.
bugs-to-stories
Convert bug reports into prd.json user stories for autonomous fixing. Use after running test-and-break skill. Triggers on: convert bugs to stories, fix these bugs, add bugs to prd, create fix stories.
compound-engineering
Compound Engineering workflow for AI-assisted development. Use when planning features, executing work, reviewing code, or codifying learnings. Follows the Plan → Work → Review → Compound loop where each unit of engineering makes subsequent work easier. Triggers on: plan this feature, implement this, review this code, compound learnings, create implementation plan, systematic development.
docx
Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks
edge-cases
Analyze a PRD for edge cases, failure modes, and scenarios that might be missed. Use after creating a PRD to strengthen it. Triggers on: analyze edge cases, find edge cases, what could go wrong, edge case analysis.
frontend-design
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.
Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.
prd
Generate a Product Requirements Document (PRD) for a new feature. Use when planning a feature, starting a new project, or when asked to create a PRD. Triggers on: create a prd, write prd for, plan this feature, requirements for, spec out.
ralph
Convert PRDs to prd.json format for the Ralph autonomous agent system. Use when you have an existing PRD and need to convert it to Ralph's JSON format. Triggers on: convert this prd, turn this into ralph format, create prd.json from this, ralph json.
vercel-react-best-practices
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
pytm
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sast-semgrep
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sca-trivy
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secrets-gitleaks
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story-quality
Review user stories for quality, proper sizing, sequencing, and acceptance criteria. Use before converting to prd.json. Triggers on: review stories, check user stories, story quality, validate stories.
test-and-break
Autonomous testing skill that opens a deployed app, goes through user flows, tries to break things, and writes detailed bug reports. Use after deploying to staging. Triggers on: test the app, find bugs, QA the deployment, break the app, test staging.
web-design-guidelines
Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".
project-status-report
Create and update structured project status reports from meetings, messages, documents, or notes. Use when users need to extract status updates into markdown reports with summary, problems, risks, and actions sections, consolidate multiple team reports, update existing reports maintaining reverse chronological order, save/modify reports in Obsidian vault, or mention terms like "status report", "project update", "sync", "war room", "team report", or "weekly update".
arkit-visionos-developer
Build and debug ARKit features for visionOS, including ARKitSession setup, authorization, data providers (world tracking, plane detection, scene reconstruction, hand tracking), anchor processing, and RealityKit integration. Use when implementing ARKit workflows on visionOS or troubleshooting provider-specific space, privacy, and lifecycle behavior.
coding-standards-enforcer
Enforce repository coding standards for Swift 6.2 concurrency, Swift language rules. Use when reviewing or implementing Swift code changes.
realitykit-visionos-developer
Build, debug, and optimize RealityKit scenes for visionOS, including entity/component setup, rendering, animation, physics, audio, input, attachments, and custom systems. Use when implementing RealityKit features or troubleshooting ECS behavior on visionOS.
shadergraph-editor
Author, load, and troubleshoot Reality Composer Pro Shader Graph materials for RealityKit on visionOS. Use when building Shader Graph materials, exposing promoted inputs for runtime control, or debugging exported USD and MaterialX interop.
shareplay-developer
Build, integrate, and troubleshoot SharePlay GroupActivities features, including GroupActivity definitions, activation flows, GroupSession lifecycle, messaging and journals, ShareLink and SharePlay UI surfaces, and visionOS spatial coordination. Use when implementing or debugging SharePlay experiences across Apple platforms, especially visionOS.
spatial-swiftui-developer
Design and implement visionOS SwiftUI scenes that integrate RealityKit content. Use when building spatial UI with RealityView, Model3D, attachments, volumetric windows, ImmersiveSpace, or spatial gestures, or when choosing SwiftUI vs RealityKit APIs for 3D presentation.
tkr-skill-writer
Guide for creating and structuring skills with consistent formatting, clear documentation, and proper reference organization. Use when creating new skills or updating existing skill documentation.
usd-editor
Guide for modifying USD ASCII (.usda) files, including prims, properties, composition arcs, variants, and transforms. Use when editing or reviewing .usda files by hand.
visionos-immersive-media-developer
Implement immersive and spatial video experiences on Apple Vision Pro (visionOS), including RealityKit VideoPlayerComponent setup, portal/progressive/full immersive viewing modes, transitions and events, comfort mitigation, and Apple Immersive Video authoring workflows.
visionos-widgetkit-developer
Build and debug WidgetKit widgets for Apple Vision Pro (visionOS), including mounting styles (elevated/recessed), textures (glass/paper), proximity-aware layouts via LevelOfDetail, and timeline update troubleshooting.
code-refactor-master
Code refactoring expert for improving code quality, readability, maintainability, and performance. Specializes in Java and Python refactoring patterns, eliminating code smells, and applying clean code principles. Use when refactoring code, improving existing implementations, or cleaning up technical debt.
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