後端開發

Docker health checks and troubleshooting. Use when building Docker images, running containers, or debugging deployment issues. Validates backend API and worker services.

Define database models with clear naming, proper data types, validation, relationships, and constraints to ensure data integrity. Use this skill when creating or modifying ORM model files, database schema definitions, model class files, or entity files. Use this when defining model relationships (has-many, belongs-to, many-to-many), setting up database constraints (NOT NULL, UNIQUE, foreign keys), adding timestamps and indexes, implementing model-level validations, or choosing appropriate data types for fields. Use this when working on files in directories like models/, entities/, app/models/, or any file that defines database table structures and relationships.

Create FFI bindings between Lean 4 and C code. Use when working with foreign functions, native libraries, Metal, or system APIs.

Specialized agent for BarqNet backend development. Focuses on Go backend API development, PostgreSQL database management, authentication systems, JWT tokens, OpenVPN integration, and production-ready backend architecture. Use this skill when working on server-side code, API endpoints, database migrations, or backend infrastructure.

Callabo 서비스들을 tmux로 한번에 실행합니다. callabo-server, scheduler, callabo-webapp, magi를 4개의 pane으로 구성하여 개발 환경을 빠르게 시작합니다.

End-to-end testing patterns for backend services. Use when testing complete application flows.

Use when building a production-ready REST API from requirements through deployment.Orchestrates 8-12 specialist agents across 5 phases using Test-Driven Development methodology.Covers planning, architecture, TDD implementation, comprehensive testing, documentation, andblue-green deployment over a 2-week timeline with emphasis on quality and reliability.

Create CrewAI workflows as NestJS applications under apps/crewai/. FUTURE: Same pattern as LangGraph - NestJS app, same webhook pattern as n8n, receive same parameters, wrap as API agents. CRITICAL: Status webhook URL must read from environment variables.

Use when capturing screenshots, automating browser interactions, or scraping web content. Covers Playwright Python API for page navigation, screenshots, element selection, form filling, and waiting strategies.

Set up drizzle-cube API server with Express, Fastify, Hono, or Next.js framework adapters. Use when configuring the semantic layer server, setting up API endpoints, extracting security context, or initializing drizzle-cube with different web frameworks.

Result backend configuration patterns for Celery including Redis, Database, and RPC backends with serialization, expiration policies, and performance optimization. Use when configuring result storage, troubleshooting result persistence, implementing custom serializers, migrating between backends, optimizing result expiration, or when user mentions result backends, task results, Redis backend, PostgreSQL results, result serialization, or backend migration.

AWS infrastructure as code with Terraform and CDK, including VPC design, EKS cluster setup, S3 bucket configuration, RDS databases, DynamoDB tables, Lambda functions, API Gateway, CloudWatch monitoring, IAM policies, security groups, cost optimization, multi-account strategies, CI/CD with CodePipeline, infrastructure testing, disaster recovery, compliance automation, and cloud-native best practices for production workloads.

System design, architecture patterns, scalability tradeoffs, and production-grade distributed systems. Covers microservices, event-driven, CQRS, modular monoliths and reliability patterns. Use when designing systems, choosing architecture patterns, making scalability decisions, or conducting architecture reviews.

Automatic cache invalidation system với Laravel Observers và Next.js On-Demand Revalidation. Tự động sync data real-time giữa backend và frontend khi admin update. USE WHEN cần setup cache management, sync frontend-backend, API cache strategy, hoặc user phàn nàn "phải Ctrl+F5 mới thấy data mới".

FastAPI backend development with SQLAlchemy 2.0, Pydantic v2, and async Python. Use for API endpoints, database models, migrations, authentication, and background tasks.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Develop and maintain a distinctive authorial voice. Transform generic prose into compelling, personal expression. Master the alchemy of turning words into your unique music.

Builds type-safe APIs with tRPC including routers, procedures, context, and client integration. Use when creating end-to-end type-safe APIs, building full-stack TypeScript applications, or replacing REST/GraphQL with simpler patterns.

Define database models and schemas with proper data types, constraints, relationships, and validation rules for PostgreSQL (Supabase/Bun.sql) and Firestore (Firebase). Use this skill when creating or modifying database models, ORM entity definitions, Prisma schemas, or Firestore document structures. Apply when working on model files (models/*.ts, entities/*.ts, schema.prisma, models/*.py, Models/*.cs), defining database relationships, setting up validation rules, or implementing data integrity constraints. This skill ensures snake_case naming for SQL and camelCase for NoSQL, required timestamps (created_at/updated_at), UUIDs for SQL and auto-generated IDs for Firestore, foreign key constraints with indexed columns, Row Level Security (RLS) policies for Supabase, strict Firestore security rules, normalized data for SQL (3NF) with denormalization for Firestore read performance, and pgvector setup for AI embeddings.

Build robust backend systems with modern technologies (Node.js, Python, Go, Rust, .NET), frameworks (NestJS, FastAPI, Django, ASP.NET Core), databases (PostgreSQL, MongoDB, Redis), APIs (REST, GraphQL, gRPC, Minimal APIs), authentication (OAuth 2.1, JWT), testing strategies, security best practices (OWASP Top 10), performance optimization, scalability patterns (microservices, caching, sharding), DevOps practices (Docker, Kubernetes, CI/CD), and monitoring. Use when designing APIs, implementing authentication, optimizing database queries, setting up CI/CD pipelines, handling security vulnerabilities, building microservices, or developing production-ready backend systems.