Reusable SKILL.md capabilities that give your agent new expertise — installed into .claude/skills/ and friends.
Next.js 14+ App Router patterns including RSC, ISR, middleware, parallel routes, and data fetching
React 19 patterns including Server Components, Actions, Suspense, hooks, and component composition
Advanced TypeScript patterns including generics, conditional types, mapped types, template literals, and type guards
REST API design with resource naming, pagination, versioning, and OpenAPI spec generation
Authentication and authorization patterns including OAuth2, JWT, RBAC, session management, and PKCE flows
AWS cloud patterns for Lambda, ECS, S3, DynamoDB, and Infrastructure as Code with CDK/Terraform
CI/CD pipeline patterns for GitHub Actions, GitLab CI, testing strategies, and deployment automation
Auto-extract patterns from coding sessions, track corrections, and build reusable knowledge with confidence scoring
Data engineering patterns for ETL pipelines, data warehousing, Apache Spark, and data quality validation
Query optimization, indexing strategies, and database performance tuning for PostgreSQL and MySQL
CI/CD pipeline design with GitHub Actions, Docker, Kubernetes, Helm, and GitOps patterns
Django architecture patterns including DRF, ORM optimization, signals, middleware, and project structure
Docker best practices including multi-stage builds, compose patterns, image optimization, and security
Advanced git workflows including worktrees, bisect, interactive rebase, hooks, and recovery techniques
Idiomatic Go patterns for error handling, interfaces, concurrency, testing, and module management
GraphQL schema design, resolver patterns, subscriptions, DataLoader for N+1 prevention, and error handling
Kubernetes operations including manifests, Helm charts, operators, troubleshooting, and resource management
LLM integration patterns including API usage, streaming, function calling, RAG pipelines, and cost optimization
MCP server development including tool design, resource endpoints, prompt templates, and transport configuration
Microservices design patterns including service mesh, event-driven architecture, saga pattern, and API gateway
Monitoring and observability with OpenTelemetry, Prometheus, Grafana dashboards, and structured logging