This skill provides patterns for unit testing JSON serialization and deserialization with Jackson and JsonTest to validate mappings and formats.

This skill streamlines Spring Boot dependency injection by enforcing constructor-first patterns, optional collaborators, and explicit bean configuration to

This skill helps you create production-ready S3 infrastructure with CloudFormation templates, including buckets, policies, versioning, and lifecycle rules.

This skill helps Spring Boot developers integrate LangChain4j with declarative AI services and auto-configuration for production-grade AI apps.

This skill provides patterns for unit testing mappers and converters to verify accurate data transformations between DTOs and domain objects.

This skill enables building agentic applications by defining tools and function calls with LangChain4j, enabling real-time API access and external integrations.

This skill teaches practical Amazon S3 operations with AWS SDK for Java 2.x, enabling efficient bucket management, object handling, and presigned URLs.

This skill helps you model production-ready ElastiCache infrastructure with CloudFormation, covering clusters, replication groups, subnet and parameter groups.

This skill provides REST API design standards for Spring Boot, guiding endpoints, DTOs, validation, error handling, pagination, security headers, and HATEOAS.

This skill guides unit testing of Spring Cache annotations using in-memory caches to verify hits, misses, eviction, and key generation.

This skill provides CloudFormation patterns for AWS Bedrock resources to deploy agents, knowledge bases, data sources, guardrails, prompts, flows, and

This skill helps you design production-ready AWS CloudFormation VPC templates with modular, reusable subnets, routes, and cross-stack references for scalable

This skill guides you to test Spring ApplicationEvent publishing and listeners with JUnit, Mockito, and AssertJ for fast, reliable event-driven tests.

This skill generates production-ready TypeScript documentation with API references, ADRs, and runnable examples for frameworks like NestJS, React, and Angular.

This skill helps you implement Tailwind CSS development patterns for mobile-first, responsive layouts, design tokens, and component reuse to speed up UI work.

This skill helps you scaffold and configure an Expo React Native app with RevenueCat paywall, AdMob banners, i18n localization, onboarding, and NativeTabs

This skill guides you through setting up shadcn/ui, installing components, and building accessible, Tailwind-styled React UI patterns.

This skill creates production-ready AWS architecture diagrams in draw.io XML using official AWS icons, enabling clear infrastructure visuals.

This skill helps you implement Clean Architecture, Hexagonal Architecture and DDD in PHP/Symfony, ensuring testable, framework-agnostic domain logic.

This skill helps you leverage React 19 patterns including Server Components, Actions, use(), and concurrent features to build scalable, high-performance

This skill helps you implement AWS CloudFormation IAM resources with least privilege, cross-account access, and structured templates for secure infrastructure.