Databases

Automatic quality gate and session health monitor. Spawns focused Haiku agents for code review and task planning when degradation detected. Validates suggestions against Oracle knowledge. Learns from user feedback to adjust sensitivity. Uses minimal context passing. Integrates with oracle and evaluator.

HashiCorp Vault operations including secrets engines (KV, AWS, Azure, GCP, Database, PKI), auth methods (Token, AppRole, Kubernetes, OIDC, AWS), policies and ACLs, dynamic credentials, secret rotation, Terraform integration, agent sidecar patterns, audit logging, high availability, and disaster recovery. Activate for Vault secret management, credentials automation, and security configuration.

Master MongoDB replication, replica sets, and sharding for distributed deployments. Learn failover, shard keys, and cluster management. Use when setting up high availability or scaling horizontally.

Skip unnecessary CI/CD operations before execution. Detect unchanged content, cached builds, and irrelevant paths to reduce workflow costs and execution time.

Advanced PostgreSQL: JSON, full-text search, window functions, and optimization.

Data quality testing with dbt tests, Great Expectations, and monitoring.

Expert systematic debugging through root cause analysis. Reflects on 5-7 possible sources, distills to 1-2 most likely causes, adds strategic logging to validate assumptions, and confirms diagnosis before fixing. Uses MCP servers for database validation. Use when troubleshooting errors, debugging issues, investigating bugs, analyzing problems, or when user mentions error, bug, not working, broken, or debugging.

This skill should be used when the user asks to format SQL code, polish SQL queries, improve SQL readability, or work with .sql files. Use when queries mention SQL formatting, code beautification, Oracle SQL, or database query polishing.

Redis for caching, sessions, real-time features, and message queues.

Drizzle ORM best practices including schema design with relationships, database migrations, prepared statements for performance, transactions, indexes, Turso SQLite database operations, type safety patterns, query optimization, and database workflow for ree-board project

Complete management for Jokers Hockey website - deployment, build checks, database migrations (Drizzle ORM), and PM2 process management. Use for any Jokers site operation.

Expert guide for handling file uploads, image optimization, cloud storage (Supabase, S3, Cloudinary), and file management. Use when implementing file upload features or managing user assets.

List all Danmarks Statistik tables currently stored in DuckDB with metadata. Use when user wants to know what data is available locally or explore stored tables.

Setup state management for React applications using Zustand, TanStack Query, and React Hook Form. Use when users need to manage client state, server state, or form state. Covers store patterns, caching strategies, and form validation.

Thorough code review for Rust/WebAssembly projects. Identifies bugs, security issues, performance problems, and maintainability concerns. Provides actionable feedback with specific suggestions.

Automatically applies when building RAG (Retrieval Augmented Generation) systems. Ensures proper chunking strategies, vector database patterns, embedding management, reranking, and retrieval optimization.

Implement production-grade caching with cache keys/TTLs/consistency classes per query, SWR (stale-while-revalidate), explicit invalidation, and comprehensive testing for stale reads and cache warmup. Use when adding caching to queries, implementing cache invalidation, or ensuring cache consistency and performance.

Master database technologies including SQL, PostgreSQL, MongoDB, Redis, and data modeling. Use when designing databases, writing queries, or optimizing database performance.

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.

core-supabase Flyway 마이그레이션 조회. Use when:(1) DB 스키마 확인, (2) 테이블 구조 파악, (3) Entity 작성 전 참조.