bill-java-skills

Clean Architecture design guide for Spring Boot. Use when reviewing code architecture, designing solutions, discussing layer separation, dependency rules, or project structure. Applies Uncle Bob's Clean Architecture principles.

Java best practices guide based on Effective Java. Use when reviewing Java code, discussing design patterns, object creation, equals/hashCode, Optional, Stream API, exception handling, or concurrency. Applies Joshua Bloch's principles.

MySQL performance optimization guide for Spring Boot/JPA. Use when reviewing database code, discussing index design, query optimization, N+1 problems, JPA/Hibernate tuning, or analyzing EXPLAIN plans. Complements /mysql-performance and /optimize-query commands.