spring-boot-engineer

Load detailed guidance based on context: A standard Spring Boot feature consists of these layers. Use these as copy-paste starting points. - Analyze requirements — Identify service boundaries, APIs, data models, security needs - Design architecture — Plan microservices, data access, cloud integration, security; confirm design before coding - Implement — Create services with constructor injection and layered architecture (see Quick Start below) - Secure — Add Spring Security, OAuth2, method security, CORS configuration; verify security rules compile and pass tests. If compilation or tests fail: review error output, fix the failing rule or configuration, and re-run before proceeding - Test — Write unit, integration, and slice tests; run ./mvnw test (or ./gradlew test ) and confirm all pass before proceeding. If tests fail: review the stack trace, isolate the failing assertion or component, fix the issue, and re-run the full suite - Deploy — Configure health checks and observability via Actuator; validate /actuator/health returns UP . If health is DOWN : check the components detail in the response, resolve the failing component (e.g., datasource, broker), and re-validate - Use field injection ( @Autowired on fields) - Skip input validation on API endpoints - Use @Component when @Service / @Repository / @Controller applies - Mix blocking and reactive code (e.g., calling .block()...