claude-code-java

In the author's own words, from each skill's SKILL.md.

• api-contract-review

  Review REST API contracts for HTTP semantics, versioning, backward compatibility, and response consistency. Use when user asks "review API", "check endpoints", "REST review", or before releasing API changes.

  skills/api-contract-review/SKILL.md on GitHub (opens in a new tab)

• architecture-review

  Analyze Java project architecture at macro level - package structure, module boundaries, dependency direction, and layering. Use when user asks "review architecture", "check structure", "package organization", or when evaluating if a codebase follows clean architecture principles.

  skills/architecture-review/SKILL.md on GitHub (opens in a new tab)

• changelog-generator

  Generate changelogs from git commits. Use when user says "generate changelog", "update changelog", "what changed since last release", or before preparing a new release.

  skills/changelog-generator/SKILL.md on GitHub (opens in a new tab)

• clean-code

  Clean Code principles (DRY, KISS, YAGNI), naming, function design and readability. Use when code is hard to read, with long methods, unclear names, duplication or deep nesting. For how responsibilities are split across classes and which way dependencies point, use solid-principles instead.

  skills/clean-code/SKILL.md on GitHub (opens in a new tab)

• concurrency-review

  Review Java concurrency code for thread safety, race conditions, deadlocks, and modern patterns (Virtual Threads, CompletableFuture, @Async). Use when user asks "check thread safety", "concurrency review", "async code review", or when reviewing multi-threaded code.

  skills/concurrency-review/SKILL.md on GitHub (opens in a new tab)

• design-patterns

  Common design patterns with Java examples (Factory, Builder, Strategy, Observer, Decorator, etc.). Use when user asks "implement pattern", "use factory", "strategy pattern", or when designing extensible components.

  skills/design-patterns/SKILL.md on GitHub (opens in a new tab)

• git-commit

  Generate conventional commit messages for Java projects. Use when user says "commit", "create commit", "commit changes", or after completing code changes that need to be committed.

  skills/git-commit/SKILL.md on GitHub (opens in a new tab)

• issue-triage

  Triage and categorize GitHub issues with priority labels. Use when user says "triage issues", "check issues", "review open issues", or during regular maintenance of GitHub issue backlog.

  skills/issue-triage/SKILL.md on GitHub (opens in a new tab)

• java-code-review

  Systematic code review for Java with null safety, exception handling, concurrency, and performance checks. Use when user says "review code", "check this PR", "code review", or before merging changes.

  skills/java-code-review/SKILL.md on GitHub (opens in a new tab)

• java-migration

  Guide for upgrading Java projects between major versions (8→11→17→21→25). Use when user says "upgrade Java", "migrate to Java 25", "update Java version", or when modernizing legacy projects.

  skills/java-migration/SKILL.md on GitHub (opens in a new tab)

• jpa-patterns

  JPA/Hibernate patterns and common pitfalls (N+1, lazy loading, transactions, queries). Use when user has JPA performance issues, LazyInitializationException, or asks about entity relationships and fetching strategies.

  skills/jpa-patterns/SKILL.md on GitHub (opens in a new tab)

• logging-patterns

  Java logging best practices with SLF4J, structured logging (JSON), and MDC for request tracing. Includes AI-friendly log formats for Claude Code debugging. Use when user asks about logging, debugging application flow, or analyzing logs.

  skills/logging-patterns/SKILL.md on GitHub (opens in a new tab)

• maven-dependency-audit

  Audit Maven dependencies for outdated versions, security vulnerabilities, and conflicts. Use when user says "check dependencies", "audit dependencies", "outdated deps", or before releases.

  skills/maven-dependency-audit/SKILL.md on GitHub (opens in a new tab)

• performance-smell-detection

  Detect potential code-level performance smells in Java - streams, collections, boxing, regex, object creation. Provides awareness, not absolutes - always measure before optimizing. For JPA/database performance, use jpa-patterns instead.

  skills/performance-smell-detection/SKILL.md on GitHub (opens in a new tab)

• security-audit

  Java security checklist covering OWASP Top 10, input validation, injection prevention, and secure coding. Works with Spring, Quarkus, Jakarta EE, and plain Java. Use when reviewing code security, before releases, or when user asks about vulnerabilities.

  skills/security-audit/SKILL.md on GitHub (opens in a new tab)

• solid-principles

  SOLID principles checklist with Java examples. Use when a class has too many responsibilities, an abstraction leaks, or a dependency points the wrong way, and when the user asks about Single Responsibility, Open/Closed, Liskov, Interface Segregation or Dependency Inversion. For naming, duplication and method length, use clean-code instead.

  skills/solid-principles/SKILL.md on GitHub (opens in a new tab)

• spring-boot-patterns

  Spring Boot best practices and patterns. Use when creating controllers, services or repositories, or when the user asks about Spring Boot layering, wiring, configuration or exception handling. For JPA and Hibernate behaviour, use jpa-patterns instead.

  skills/spring-boot-patterns/SKILL.md on GitHub (opens in a new tab)

• test-quality

  Write high-quality JUnit 5 tests with AssertJ assertions. Use when user says "add tests", "write tests", "improve test coverage", or when reviewing/creating test classes for Java code.

  skills/test-quality/SKILL.md on GitHub (opens in a new tab)

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