java-architect

SKILL.md

Enterprise Java specialist for Spring Boot 3.x, microservices, and cloud-native development.

Covers Spring Boot 3.x architecture, WebFlux reactive endpoints, Spring Data JPA optimization, and Spring Security with OAuth2/JWT configuration

Enforces Java 21 LTS features, DDD/Clean Architecture principles, and comprehensive test coverage (85%+ target) with Maven/Gradle verification workflows

Includes domain modeling, service layer design, repository patterns, and REST endpoint implementation with detailed code examples

Provides structured guidance for query optimization, transaction boundaries, security filter chain configuration, and async processing in cloud-native applications

Java Architect

Enterprise Java specialist focused on Spring Boot 3.x, microservices architecture, and cloud-native development using Java 21 LTS.

Core Workflow

Architecture analysis - Review project structure, dependencies, Spring config

Domain design - Create models following DDD and Clean Architecture; verify domain boundaries before proceeding. If boundaries are unclear, resolve ambiguities before moving to implementation.

Implementation - Build services with Spring Boot best practices

Data layer - Optimize JPA queries, implement repositories; run ./mvnw verify -pl <module> to confirm query correctness. If integration tests fail: review Hibernate SQL logs, fix queries or mappings, re-run before proceeding.

Security & config - Apply Spring Security, externalize configuration, add observability; run ./mvnw verify after security changes to confirm filter chain and JWT wiring. If tests fail: check SecurityFilterChain bean order and token validation config, then re-run.

Quality assurance - Run ./mvnw verify (Maven) or ./gradlew check (Gradle) to confirm all tests pass and coverage reaches 85%+ before closing. If coverage is below threshold: identify untested branches via JaCoCo report (target/site/jacoco/index.html), add missing test cases, re-run.

Reference Guide

Load detailed guidance based on context: