DevOps

UI/UX design intelligence. 50 styles, 21 palettes, 50 font pairings, 20 charts, 8 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app, .html, .tsx, .vue, .svelte. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient.

Implement robust error handling with user-friendly messages, specific exception types, centralized error handling, and graceful degradation strategies across the application. Use this skill when writing error handling logic in any code file, implementing try-catch blocks, raising or throwing exceptions, or designing error response formats. Use this skill when validating input and failing fast with clear messages, implementing retry strategies for transient failures, ensuring proper resource cleanup in finally blocks, or creating centralized error handling middleware. Use this skill when working with API endpoints, service layers, data access code, or any code that could fail and needs proper error handling. Use this skill when designing error responses for users or implementing graceful fallback behaviors.

Interactive question workflow for clarifying unclear or ambiguous tasks. Use when user requests are vague, lack specifications, have multiple valid implementation approaches, or require architectural decisions. Triggers on requests like "add authentication", "build a dashboard", "optimize the database", or any task where requirements are incomplete or implementation details are missing.

Design and implement robust, production-grade backend systems with strong architecture, correctness, performance, and operational rigor. Use this skill when the user asks to build APIs, services, data pipelines, system architectures, or backend-heavy applications.

Deploys and hosts full-stack web applications on AWS Amplify with SSR support, CI/CD, and backend services. Use when deploying Next.js apps to AWS, setting up Amplify hosting, or configuring Amplify backends.

Create and optimize Dockerfiles with BuildKit, multi-stage builds, advanced caching, and security. Use when: (1) Creating new Dockerfile, (2) Optimizing existing Dockerfile, (3) Reducing image size, (4) Improving security, (5) Using Python with uv, (6) Resolving cache or slow build issues, (7) Setting up CI/CD builds

Modern React development with React 19 features, hooks, components, and server-side capabilities

Review Dockerfiles for best practices, security, and optimization. Use when the user says "review Dockerfile", "optimize image", "Dockerfile best practices", "reduce image size", or asks to audit a container build.

Data Science Captain - ML models, analytics, forecasting, and data-driven insights

Analyzes network protocol implementations to identify parsing vulnerabilities, state machine issues, and protocol-level security problems. Use when analyzing network servers, protocol handlers, or investigating protocol implementation bugs.

System 테스트 작성 및 실행. pytest 기반, docker-compose.acceptance.yml 필수, 4단계 순서(infra→component→integration→scenarios). 네이밍 test_{대상}_{시나리오}_{예상결과}. poetry run pytest system-tests/ 실행. Fail Fast - 모든 응답 필드/타입/에러 엄격 검증, 예상외 필드/부작용은 실패 처리.

Configuring MCP Servers & Plugins for Claude Code. Set up Model Context Protocol servers (GitHub, Filesystem, Brave Search, SQLite). Configure OAuth, manage permissions, validate MCP structure. Use when integrating external tools, APIs, or expanding Claude Code capabilities.

Create and manage database migrations with reversible up/down methods, focused changes, and zero-downtime deployment considerations. Use this skill when creating or modifying migration files in directories like migrations/, db/migrate/, alembic/versions/, sequelize/migrations/, prisma/migrations/, or any database schema versioning folders. Use this when adding or altering database tables, columns, indexes, foreign keys, or constraints in migration scripts, implementing both up (apply changes) and down (rollback changes) methods for reversible migrations that allow safe rollbacks if deployments fail, writing migration scripts for ORMs and migration tools like Sequelize, Alembic, Django migrations, Rails migrations, TypeORM, Prisma migrations, Knex.js migrations, or any database migration framework, creating database indexes on large tables using concurrent creation options like CREATE INDEX CONCURRENTLY in PostgreSQL to avoid table locks that would block production traffic during deployment, separating schema

First-principles deep thinking for significant problems. Use when you need to question assumptions, craft elegant solutions, and challenge beliefs.

Troubleshoot and manage Kubernetes clusters, including resource inspection, debugging, pod logs, events, and cluster operations. Use when the user needs to diagnose issues, inspect workloads, analyze pod failures, or perform Kubernetes cluster operations.

Docker Compose 설정 문법 및 구성 검증. Use when (1) compose 검증, (2) config 확인, (3) compose 수정 후.

Use when adding packages, bumping versions, or responding to security alerts. Enforces supply chain security and vulnerability remediation.

KCIS Linkou Campus elementary school configuration and terminology. Use this skill when implementing school-specific features, understanding course types (LT/IT/KCFS), role permissions, English levels (E1/E2/E3), grading systems, attendance status, or academic calendar settings.

Use when implementing features, fixing bugs, or making code changes. Ensures scope is defined before coding, then enforces RED → GREEN → REFACTOR test discipline. Triggers: 'implement', 'add', 'build', 'create', 'fix', 'change', 'feature', 'bug'.

Master modern frontend frameworks including React, Vue.js, Angular, Next.js. Learn component architecture, state management, routing, and framework-specific best practices for building scalable web applications.