Backend skills

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

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

This skill enables efficient DynamoDB usage with AWS SDK for Java 2.x, delivering type-safe operations and Spring Boot integration.

This skill guides you in writing parameterized unit tests with JUnit 5 using various sources to cover multiple scenarios efficiently.

This skill implements production-ready JWT authentication and authorization for Spring Boot 3.5.x, enabling stateless security and RBAC with Spring Security.

This skill helps you implement feature-aligned CRUD services in Spring Boot 3.5+, aligning aggregates, repositories, and controllers with clean DTOs.

This skill helps you validate exception handling in Spring controllers by testing @ExceptionHandler and @ControllerAdvice with MockMvc for precise error

This skill helps you implement AWS messaging with SQS and SNS using Java SDK 2.x, covering queues, topics, DLQ, and Spring Boot patterns.

This skill helps you validate @ConfigurationProperties bindings with ApplicationContextRunner, ensuring proper binding, validation, defaults, profiles, and

This skill helps you securely manage secrets with AWS Secrets Manager using Java SDK v2, including storing, retrieving, rotating, and Spring Boot integration.

This skill helps Java developers integrate Amazon Bedrock patterns with AWS SDK 2.x, enabling model listing, invocation, streaming, and Spring Boot integration.

This skill helps you configure AWS SDK for Java 2.x with best practices for clients, authentication, timeouts, and error handling.

This skill helps you build declarative, type-safe AI services with LangChain4j in Java, enabling memory, tool integration, and structured outputs.

This skill provides patterns to integrate SpringDoc OpenAPI 3.0 with Spring Boot 3.x, generating comprehensive REST API documentation and Swagger UI.

This skill helps you enable and manage Spring Cache across services, improving performance with @Cacheable, TTLs, and eviction strategies.

This skill creates an admin user in Medusa using provided email and password, reports results, and guides next steps.

This skill helps you leverage data and machine learning to build data-driven features by analyzing data, integrating models, and applying analytics insights.

This skill helps you embed secure coding practices across the development lifecycle, reducing vulnerabilities and protecting user data from common exploits.