309 Claude Code skills tagged Java. Browse all programming language-related skills in the open ClaudSkills registry — free to install, one-click via the desktop app.
Showing top 200 of 309 skills, ranked by quality score.
For 3P / EXTERNAL developers: guides interactive Horizon Platform SDK (PSDK) integration for Meta Quest and Horizon OS Android/Kotlin apps — analyzes the codebase, recommends publi
tools
Analyzes Java stack traces, diagnoses exceptions, identifies root causes, and troubleshoots performance problems. Deconstructs stack traces, investigates NullPointerException, anal
engineering
Refactors legacy Java code to modern patterns and best practices. Use when modernizing old Java code, converting to Java 8+ features, refactoring legacy applications, applying desi
engineering
Use when Java concurrency with ExecutorService, CompletableFuture, and virtual threads. Use when building concurrent applications.
engineering
Expert-level Java development with Java 21+ features, Spring Boot, Maven/Gradle, and enterprise best practices
engineering
Use when Java generics including type parameters, wildcards, and type bounds. Use when writing type-safe reusable code.
engineering
Creates complete Spring Boot services following best practices and layered architecture. Use when building REST APIs, creating Spring services, setting up controllers, implementing
engineering
Use when Java Streams API for functional-style data processing. Use when processing collections with streams.
engineering
Optimize Gradle build speed with Configuration Cache, parallel execution, and AGP 9 tuning
general
Execute an implementation plan phase-by-phase by delegating to sc:implement, with `./gradlew` verification between phases and a hard stop on any failure. Use whenever the user says
general
Creates, lists, and manages Architecture Decision Records for Java projects. Use when user asks to "create an ADR", "document this decision", "write an architecture decision", "add
engineering
Reviews Java REST API design including HTTP methods, status codes, naming, and versioning. Use when user asks to "review my API", "check REST design", "is this good REST", "review
engineering
Reviews or implements Clean Architecture / Hexagonal Architecture (Ports & Adapters) and DDD tactical patterns for Java projects. Use when user asks to "apply clean architecture",
product
Generates a Conventional Commits message for staged Java changes. Use when user asks to "write a commit message", "help me commit", "what should my commit say", "summarize my chang
engineering
Reviews Java code for thread safety, race conditions, deadlocks, and Java 21 virtual thread compatibility. Use when user asks to "review concurrency", "is this thread safe", "check
engineering
Generates a complete Spring Boot CRUD feature (entity, repository, service, controller, DTOs, tests) in an existing project. Use when user asks to "add CRUD for", "generate entity"
engineering
Detects GoF patterns in Java code or recommends the right pattern for a problem. Use when user asks to "what pattern is this", "detect design patterns", "suggest a pattern", "shoul
engineering
Generates Javadoc comments for Java classes and methods. Use when user asks to "add javadoc", "document this class", "write documentation", "add comments", "generate docs", or "doc
engineering
Explains Java code in plain language including design patterns. Use when user asks to "explain this code", "what does this do", "help me understand", "walk me through this", or "ho
engineering
Diagnoses and fixes Java compile errors, runtime exceptions, and stack traces. Use when user asks to "fix this error", "this won't compile", "I'm getting an exception", "debug this
engineering
Runs a holistic code health check scoring Security, Tests, Performance and Quality with A-F grades. Use when user asks to "check health", "score this project", "health check", "how
engineering
Reviews Spring Data JPA for N+1 queries, fetch strategies, projections, and Specifications. Use when user asks to "review JPA", "check for N+1", "JPA performance", "review my entit
engineering
Reviews Java logging for SLF4J best practices, MDC context, structured logging, and PII safety. Use when user asks to "review logging", "check my logs", "logging review", "is my lo
engineering
Interactive Java version upgrade guide (8 to 11, 11 to 17, 17 to 21). Use when user asks to "migrate to Java 17", "upgrade to Java 21", "Java migration guide", "move from Java 11 t
engineering
Generates or reviews OpenAPI / Swagger documentation for Spring Boot REST APIs — adds @Operation, @Schema, @ApiResponse annotations and configures Swagger UI. Use when user asks to
engineering
Quick Java performance scan flagging N+1 queries, memory issues, threading problems, and algorithmic hotspots. Use when user asks to "check performance", "performance scan", "any N
engineering
Suggests and applies version-gated Java refactorings. Use when user asks to "refactor this", "clean up this code", "modernize this Java", "simplify this", "extract method", "improv
engineering
Reviews Java code for bugs, naming issues, code smells, and version-appropriate idioms. Use when user asks to "review this code", "check my Java", "look at this class", "find issue
engineering
Scaffolds a brand-new Spring Boot project from scratch — build file, package structure, and a starter feature. Use when user asks to "create a new Spring Boot project", "bootstrap
engineering
Reviews or implements Spring Security configuration — JWT authentication, OAuth2, method-level security, CORS, and CSRF. Use when user asks to "add authentication", "secure this AP
security
Quick OWASP security scan for injection risks, hardcoded secrets, weak crypto, and Spring Security misconfigs. Use when user asks to "security scan", "check for vulnerabilities", "
security
Checks Java code for SOLID principles violations with Java-specific patterns. Use when user asks to "check SOLID principles", "is this good OOP", "single responsibility", "SOLID vi
engineering
Generates JUnit 5 and Mockito unit tests or Testcontainers integration tests, auto-detecting project setup. Use when user asks to "write tests", "generate tests", "add unit tests",
engineering
Spring Boot coding guidelines for REST APIs, data access, caching, and configuration. This skill covers Spring-specific patterns. For core Java, use java-coding skill.
engineering
Install Tilt and scaffold or audit Tiltfile + tilt/ configurations with ecosystem-aware templates. Auto-detects Java/Gradle (Spring Boot), Next.js, Python/uv, and external infrastr
engineering
Java SDK development for enterprise environments
tools
Use when you need to review, improve, or troubleshoot a Maven pom.xml file — including dependency management with BOMs, plugin configuration, version centralization, mult — from ja
engineering
Use when you need to add or evaluate Maven dependencies that improve code quality — including nullness annotations (JSpecify), static analysis (Error Prone + NullAway), f — from ja
engineering
Use when you need to add or configure Maven plugins in your pom.xml — including quality tools (enforcer, surefire, failsafe, jacoco, pitest, spotbugs, pmd), security scan — from en
engineering
Use when you need to create a DEVELOPER.md file for a Maven project — combining a fixed base template with dynamic sections derived from the project pom.xml, including a — from jab
engineering
Covers Maven Central search (Search API, maven-metadata.xml, artifact URLs) and project-local update reports via versions-maven-plugin (display-property-updates, display- — from en
engineering
Use when you need to review, improve, or build Spring Boot 4.0.x applications — including proper usage of @SpringBootApplication, component annotations (@Controller, @Ser — from ja
engineering
Use when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods, resource URIs, status codes, DTOs, versioning, deprecation and sunset — from ja
engineering
Use when you need to design, review, or improve validation in Spring Boot applications — including Bean Validation on request DTOs, @Valid/@Validated at API boundaries, c — from en
engineering
Use when you need to design, review, or improve security in Spring Boot applications — including SecurityFilterChain, OAuth2/JWT resource server patterns, form login basi — from ja
security
Use when you need to write unit tests for Spring Boot applications — including pure unit tests with @ExtendWith(MockitoExtension.class) for @Service/@Component, slice tes — from ja
engineering
Use when you need to write or improve integration tests — including Testcontainers with @ServiceConnection, @DataJdbcTest persistence slices, TestRestTemplate or MockMvcT — from ja
engineering
Use when you need to implement acceptance tests from a Gherkin .feature file for Spring Boot applications — including finding scenarios tagged @acceptance, implementing h — from ja
engineering
Expert Spring Boot engineer mastering Spring Boot 3+ with cloud-native patterns. Specializes in microservices, reactive programming, Spring Cloud integration, and enterprise soluti
engineering
Build, update, and troubleshoot AllayMC plugins in Java or other JVM languages. Use when creating a new AllayMC plugin, migrating an existing plugin to a new Allay API version, wir
general
Android APK build pipeline using sbt-multiarch-scala — SDK management, DEX compilation, native .so packaging, signing, and installation without Gradle
general
Build and deploy Android app to connected device via USB. Fast deployment (~2-5 seconds) using Gradle and ADB. Use when deploying, installing, or building Android apps to physical
engineering
Skill local para compilar e instalar Aethereum/VocoGal. Usa Gradle e ADB para enviar a app ao móbil.
general
Create Android dynamic feature modules with Gradle, Koin DI, Navigation registration. Use for new features, modularization, feature flags.
general
Automate Gradle tasks for Android projects - build, test, coverage, clean. Use when building APKs, running unit tests, generating coverage reports, or checking dependencies.
general
Gradle build logic e Convention Plugins. Use when mexendo na configuração de build do CraftD (build-logic/, libs.versions.toml).
general
Développement Android natif avec Kotlin et Jetpack Compose. Se déclenche avec "Android", "Kotlin", "Jetpack Compose", "Android Studio", "Gradle", "Room", "Hilt", "Corouti — from en
engineering
Expert guidance on Android native development — Kotlin idioms, Jetpack Compose UI, Room database, Hilt dependency injection, Coroutines and Flow for async work, WorkManager for bac
engineering
Configure Android release build signing with dual-source credentials (env vars + gradle.properties)
security
重要: ユーザーがAndroidテスト実行をリクエストした場合、常にこのスキルを最初に使用してください。以下の場合に必ず使用: run TestName, execute test, テストを実行, 結果を分析, run all tests, analyze test failures, fix failing tests、または Android unit
engineering
Set up or upgrade apps that use ArcGIS Maps SDK for Kotlin. Use when asked to add the SDK to an Android project, configure Gradle dependencies, or create the first working map or s
engineering
Configure AWS RDS (Aurora, MySQL, PostgreSQL) with Spring Boot applications. Use when setting up datasources, connection pooling, security, and production-ready database configurat
engineering
Autonomously run quality checks (detekt, Gradle tests) to establish baseline or detect regressions. Supports three modes (capture, compare, auto) for comprehensive regression detec
general
Recherchiert gruendlich die oeffentlich bekannten Bugs, Fallen und Workarounds eines technischen Bereichs und erstellt daraus einen kuratierten Bug-Almanach in ~/proggs/bugs/<kateg
science
Guides the agent through upgrading a Capacitor plugin to a newer major version. Supports upgrades from Capacitor 4 through 8, including multi-version jumps. Covers automated upgrad
engineering
Maintains IdeaVim changelog (CHANGES.md) and build.gradle.kts changeNotes. Use when updating changelog, documenting releases, or reviewing commits/PRs for changelog entries.
general
Analyze Gradle dependencies for outdated versions, known CVEs, unnecessary transitive dependencies, and version conflicts
general
Monitor and maintain CI runner health — check disk space, clear stale caches (Flutter, Gradle, npm, Docker), prune old worktrees, and report status. Prevents cache corruption failu
engineering
Generates architectural diagrams (PlantUML, Mermaid) for the Java project using the Code Atlas Gradle plugin. Use when you need to visualize the codebase structure, class relations
general
Use when writing new Kotlin or Java files, editing existing Kotlin code, writing or modifying Compose UI code, writing or modifying unit tests in Kotlin, any task that produces .kt
engineering
Compress verbose CLI output with tokf before returning results. Activates for git, cargo, npm, docker, go, gradle, kubectl, and other supported commands.
engineering
Diagnose and fix problems with a CometChat Android integration. Gradle errors, runtime crashes, rendering issues, and version compatibility.
general
CometChat Android UIKit v6 core setup — Gradle dependencies, SDK initialization, login/logout, and message sending
general
Compile a Java project and verify the build. Use when testing migration success, running Maven or Gradle builds, or resolving compilation errors.
engineering
Convert Java code to idiomatic C. Use when migrating Java projects to C, translating Java patterns to idiomatic C, or refactoring Java codebases for performance, minimal runtime de
engineering
Convert Java code to idiomatic C++. Use when migrating Java projects to C++, translating Java patterns to idiomatic C++, or refactoring Java codebases. Extends meta-convert-dev wit
engineering
Convert Java code to idiomatic Rust. Use when migrating Java projects to Rust, translating Java patterns to idiomatic Rust, or refactoring Java codebases. Extends meta-convert-dev
engineering
Use when building, configuring, or debugging enterprise Java applications with Spring Boot 3.x, microservices, or reactive programming. Invoke to implement WebFlux endpoi — from an
engineering
Generates Spring Boot 3.x configurations, creates REST controllers, implements Spring Security 6 authentication flows, sets up Spring Data JPA repositories, and configure — from an
engineering
Complete Maven standards covering build processes, POM maintenance, dependency management, and Maven integration for CUI projects
general
Debug React Native issues systematically. Use when encountering native module errors like "Native module cannot be null", Metro bundler issues including port conflicts and cache co
engineering
Fix Dependabot security vulnerabilities in Java/Gradle projects using severity-based processing, dependency substitution strategies, and dependency graph verification. Us — from se
security
Version catalog strategy, dependency management, BOMs, and version constraints for Java/Gradle projects. Covers version centralization, never-downgrade policy, bundle patterns, res
general
Scan project dependencies for known vulnerabilities (CVEs), auto-fix safe patches, and generate SBOM. Auto-detects all package managers in monorepos — npm (npm audit), yarn (yarn a
security
Upgrade dependencies for Java/Kotlin (Gradle/Maven) and TypeScript/Node projects with minimal risk: plan the bump, apply changes incrementally, run tests/builds, and document break
engineering
Développement Android natif avec Kotlin et Jetpack Compose. Se déclenche avec "Android", "Kotlin", "Jetpack Compose", "Android Studio", "Gradle", "Room", "Hilt", "Corouti — from en
engineering
Expert en configuration et optimisation Gradle pour Android Kotlin. Gère build.gradle, Kotlin DSL, dépendances, flavours, variants. Se déclenche avec "gradle", "build err — from en
engineering
Développement Java avec Spring Boot, Spring Security et l'écosystème Spring. Se déclenche avec "Java", "Spring Boot", "Spring", "JPA", "Hibernate", "Maven", "Gradle", "Sp — from en
engineering
Spring Boot/MyBatisによるバックエンド実装スキル - RESTful API設計、データベース設計（Flywayマイグレーション）、Controller/Service/Mapper層の実装、単体テスト作成を行います。DRY原則を徹底し、product.utilパッケージの既存実装やAOPによる自動ログ出力を活用します。未使用コード削除をI
general
Audit Java code for logs, exception messages, and console output that may leak sensitive data such as IBAN, PAN (credit cards), DNI/NIE/NIF, passports, credentials, tokens, API key
engineering
Android 実機またはエミュレータへのビルド・デプロイ・動作確認の一連のワークフロー（WSL2 + Gradle + adb）。 このスキルを使うべき場面: 実機にデプロイしたい、実機で確認したい、デバイスにインストールして、 APK をビルドして入れて、adb でアプリをインストール、アプリデータをクリアして再インストール、 logcat でログを見た
general
Conventions and style guidelines for dgroomes' personal projects. Use when upgrading, maintaining, or creating projects in dgroomes' repositories. Covers README style, Gradle confi
general
Android エミュレータでアプリの画面表示や動作をプレビュー確認するためのワークフロー（WSL2 + Gradle + adb）。 このスキルを使うべき場面: エミュレータでプレビューしたい、エミュレータで確認したい、 エミュレータにデプロイして、x86_64 ビルドで試したい、emulator-preview、/emulator-preview。 実機
general
Reads and searches source code across ALL scopes: external library dependencies, plugins (buildscript), and Gradle Build Tool internal source code; use whenever you need to UNDERST
science
Expo config plugin yazma, withInfoPlist, withAndroidManifest, withDangerousMod, mod compose, plugin testing ve app.config.ts'te kayit. Triggers on config plugin, with-plugin, withI
engineering
Sik karsilasilan Expo hatalari: Metro cache, version mismatch, expo-doctor, Pod install, Gradle daemon, native module conflicts, EAS Build logs, dependency hoisting. Triggers on ex
general
Expert guidance for integrating FeatBit Java Server SDK. Use when user asks about "Java SDK", "Java feature flags", "FeatBit Java", "Maven feature flags", or mentions .java or buil
engineering
Fix Dependabot security vulnerabilities in Java/Gradle projects using severity-based processing, dependency substitution strategies, and dependency graph verification. Us — from bi
security
Use when you need to create a new Maven-based Micronaut 4.x project using SDKMAN-managed Java and Micronaut CLI tooling. This should trigger for requests such as Create a Micronaut
general
Use when you need to create a new Maven-based Quarkus 3.x project using SDKMAN-managed Java and Quarkus CLI tooling. This should trigger for requests such as Create a Quarkus Maven
general
Use when you need to review, improve, or build Spring Boot 4.0.x applications — including proper usage of @SpringBootApplication, component annotations (@Controller, @Ser — from ja
engineering
Use when you need to create a new Maven-based Spring Boot 4.0.x project using SDKMAN-managed Java and Spring Boot CLI tooling. This should trigger for requests such as Create a Spr
engineering
Use when you need to design, review, or improve modular monoliths with Spring Modulith in Spring Boot applications - including application module package structure, ApplicationModu
engineering
Use when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods, resource URIs, status codes, DTOs, versioning, deprecation and sunset — from ja
engineering
Use when you need to design, review, or improve security in Spring Boot applications — including SecurityFilterChain, OAuth2/JWT resource server patterns, form login basi — from ja
security
Use when you need to implement acceptance tests from a Gherkin .feature file for Spring Boot applications — including finding scenarios tagged @acceptance, implementing h — from ja
engineering
Use when you need to write or improve integration tests — including Testcontainers with @ServiceConnection, @DataJdbcTest persistence slices, TestRestTemplate or MockMvcT — from ja
engineering
Use when you need to write unit tests for Spring Boot applications — including pure unit tests with @ExtendWith(MockitoExtension.class) for @Service/@Component, slice tes — from ja
engineering
Use when you need to design, review, or improve validation in Spring Boot applications — including Bean Validation on request DTOs, @Valid/@Validated at API boundaries, c — from ja
engineering
Provides expert guidance for building GraalVM Native Image executables from Java applications. Use when converting JVM applications to native binaries, optimizing cold start times,
general
Provides authoritative guidance for ALL Gradle operations: executing builds, running tests with surgical filtering, introspecting project structure, creating modules, and diagnosin
science
Upgrade from Gradle 8.x to Gradle 9.x with plugin compatibility updates. Required for Java 25 support. Includes plugin version mappings and migration patterns.
general
Expert en configuration et optimisation Gradle pour Android Kotlin. Gère build.gradle, Kotlin DSL, dépendances, flavours, variants. Se déclenche avec "gradle", "build err — from en
engineering
在 Project 仓库中新增或引用 Gradle 依赖时，先查 `file/gradle/config.gradle` 与 `file/gradle/config_libs.gradle` 是否已有坐标；按官方/非官方规则写入对应分组，并在 `file/deps/deps_android.gradle` 或 `file/deps/deps_project.
engineering
Configures Gradle builds for CI/CD platforms including GitHub Actions, GitLab CI, Jenkins, and CircleCI. Use when setting up automated builds, configuring caching strategies, runni
engineering
Manages Gradle dependencies using version catalogs, BOMs, and dependency constraints. Use when setting up dependency management, centralizing versions, resolving conflicts, or conf
general
Configures and builds optimized Docker images using Google's Jib plugin without Docker daemon or Dockerfile. Use when containerizing Spring Boot microservices, building multi-archi
engineering
Gradle build configuration standards for Java projects. Covers version catalogs, dependency bundles, multi-module setup, BOM management, and common troubleshooting. Use when config
general
Configures comprehensive testing in Gradle including JUnit 5, TestContainers, test separation (unit vs integration), and code coverage with JaCoCo. Use when asked to "set up JUnit
engineering
Analyzes and resolves common Gradle build issues including OutOfMemory errors, dependency conflicts, build cache problems, configuration cache failures, and slow builds. Use when a
general
How to write .vscode/tasks.json — build/test task schema, dependsOn chains, per-language examples (Gradle, Go, Node/pnpm, Python, Zig). Use when creating build tasks, test tasks, o
tools
Weekly review of infrastructure changes for the NutriSport portfolio docs. Activates on "/infra-weekly", "/infra-review", "weekly infra", "тижневий ревʼю інфри", "що ми зробили цьо
engineering
Guide for creating IntelliJ Platform plugins using Gradle and Kotlin/Java. Use when users want to create, configure, or develop plugins for IntelliJ IDEA or other JetBrains IDEs.
engineering
Upgrade Java projects from Java 21 to Java 25 with required dependency updates. Requires Gradle 9.x, Groovy 5.x, and updated plugins for compatibility.
engineering
GraalVM Native Image expert that adds native image support to Java applications, builds the project, analyzes build errors, applies fixes, and iterates until successful compilation
engineering
Discover Java API signatures from compiled JARs using javap instead of guessing or relying on incomplete documentation. Use when encountering unknown methods, pagination patterns,
engineering
Use when building, configuring, or debugging enterprise Java applications with Spring Boot 3.x, microservices, or reactive programming. Invoke to implement WebFlux endpoi — from en
engineering
Expert Java architect specializing in Java 21, Spring Boot 3, and Jakarta EE ecosystem. This agent excels at designing enterprise-grade applications with modern Java features, micr
engineering
AI驱动的Java代码安全审计技能，实现系统化、高覆盖率的漏洞挖掘。使用场景： (1) 审计Java/Kotlin项目寻找安全漏洞（0day挖掘、代码审计、安全评估） (2) 企业级代码库的安全审计（支持大型项目） (3) 需要高质量、低幻觉率的安全审计报告 (4) CI/CD集成的前期漏洞发现 触发关键词：Java审计、代码审计、安全审计、漏洞挖掘、0da
engineering
Use when the user asks to add caching, configure Redis or Caffeine cache, use @Cacheable/@CacheEvict/@CachePut, optimize repeated database or API calls, or review existing Spring B
engineering
Core CDI patterns including constructor injection, scopes, producers, and container configuration
engineering
Quarkus-specific CDI patterns including @QuarkusTest, native image support, and reflection registration
engineering
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 befo
engineering
Java coding standards for Spring Boot services: naming, immutability, Optional usage, streams, exceptions, generics, and project layout.
engineering
Core Java development patterns including code organization, modern features, performance patterns, and implementation verification
engineering
JaCoCo code coverage configuration for Java/Gradle projects. Covers report generation, coverage thresholds, multi-module aggregation, and SonarQube integration. Use when setting up
engineering
Use when you need to apply data-oriented programming best practices in Java — including separating code (behavior) from data structures using records, designing immutable — from ja
engineering
Guide Claude to create domain modules following DDD principles and hexagonal architecture for Java + Spring Boot projects. Use when user requests: (1) "Create a new module" / "새 모듈
engineering
Use when you need to view the source code of a Java class from project dependencies, understand a library's API implementation, find method signatures, or explore how a dependency
engineering
Use when you need to select, review, or implement Java design and integration patterns — including classic Java design patterns, REST API patterns, Kafka and event-driven patterns,
engineering
A comprehensive guide providing essential design principles and best practices for Java development
engineering
Containerize Java applications - Dockerfile optimization, JVM settings, security
engineering
Use when you need to generate or improve Java project documentation — including README.md files, package-info.java files, and Javadoc enhancements — through a modular, st — from ja
engineering
Java 25 development patterns for the crypto-scout ecosystem including microservices, ActiveJ, and async I/O
engineering
Enforce CUI logging standards by validating LogRecord usage, testing coverage, and identifier organization
engineering
Use when you need to apply Java exception handling best practices — including using specific exception types, managing resources with try-with-resources, securing excepti — from ja
engineering
Interactive Java/Spring Boot learning skill for experienced Go developers. Use when the user wants to learn Java, practice Spring Boot, work on Java exercises, or asks for Java exp
engineering
Use when you need to apply functional exception handling best practices in Java — including replacing exception overuse with Optional and VAVR Either types, designing err — from ja
engineering
Use when you need to apply functional programming principles in Java — including writing immutable objects and Records, pure functions, functional interfaces, lambda expr — from ja
engineering
Master core Java programming - syntax, OOP, collections, streams, and exception handling
engineering
Diagnoses and repairs common Java and Gradle environment issues like unbound classpath containers and project configuration failures.
engineering
Use jackknife Maven plugin to explore JARs, search types and members, decompile classes, inspect annotations, and instrument bytecode. Trigger when the user needs to: investigate a
engineering
Master JPA/Hibernate - entity design, queries, transactions, performance optimization
engineering
Lombok patterns including @Delegate, @Builder, @Value, @UtilityClass for reducing boilerplate
engineering
Execute systematic logging standards maintenance with plan tracking and comprehensive test coverage
engineering
Java code maintenance standards including prioritization, refactoring triggers, and compliance verification
engineering
Use when you need to review, improve, or troubleshoot a Maven pom.xml file — including dependency management with BOMs, plugin configuration, version centralization, mult — from ja
engineering
Use when you need to add or evaluate Maven dependencies that improve code quality — including nullness annotations (JSpecify), static analysis (Error Prone + NullAway), f — from ja
engineering
Use when you need to create a DEVELOPER.md file for a Maven project — combining a fixed base template with dynamic sections derived from the project pom.xml, including a — from jab
engineering
Maven build system, dependency management, and Java project configuration assistance.
engineering
Use when you need to add or configure Maven plugins in your pom.xml — including quality tools (enforcer, surefire, failsafe, jacoco, pitest, spotbugs, pmd), security scan — from ja
engineering
Covers Maven Central search (Search API, maven-metadata.xml, artifact URLs) and project-local update reports via versions-maven-plugin (display-property-updates, display- — from ja
engineering
Generate a complete Model Context Protocol server project in Java using the official MCP Java SDK with reactive streams and optional Spring Boot integration.
tools
How to identify and fix Java memory leaks in Android Chrome using LeakCanary traces.
engineering
Build microservices - Spring Cloud, service mesh, event-driven, resilience patterns
engineering
Javaコードのモダン化・リファクタリング・現代的Javaの書き方に関するあらゆる作業に使用する。Java 8以前の旧来コードをJava 11/17/21/25のモダンスタイルへ書き換えるとき、var・record・switch式・テキストブロック・sealed class・仮想スレッドなどの新機能を使う方法を調べるとき、Stream APIやOptiona
engineering
阿里巴巴Java开发手册MySQL数据库规约，包含建表规约、索引规约、SQL语句、ORM映射。Use when designing database schemas, writing SQL queries, or working with MySQL in Java applications.
engineering
JSpecify null safety annotations with @NullMarked, @Nullable, and package-level configuration
engineering
Use when you need to review, improve, or refactor Java code for object-oriented design quality — including applying SOLID, DRY, and YAGNI principles, improving class and — from jab
engineering
Use when you need to implement or improve Java logging and observability — including selecting SLF4J with Logback/Log4j2, applying proper log levels (ERROR, WARN, INFO, D — from ja
engineering
Use when you need to implement or improve Java metrics observability with Micrometer — including meter design, naming/tag conventions, cardinality control, timers/counters/gauges/d
engineering
Use when you need to implement or improve distributed tracing with OpenTelemetry in Java — including trace/span modeling, context propagation, semantic conventions, span attributes
engineering
Generate package-info.java files for Java packages. Use when the user requests to add package documentation files to Java packages, create package-info.java files, or document Java
engineering
Java development patterns: Spring Boot, CompletableFuture, records, sealed types, streams, JPA/Hibernate, Maven/Gradle, virtual threads (Loom). Triggers: Java, Spring, Spring Boot,
engineering
Conduzir análise de performance e qualidade em mudanças Java com foco em decisão baseada em evidência. Usar quando houver otimização de código, suspeita de regressão de latência/th
engineering
JVM performance tuning - GC optimization, profiling, memory analysis, benchmarking — from engineering/languages
engineering
Use when you need to set up Gatling performance testing for a Java Maven project — including adding Gatling dependencies and the Gatling Maven plugin, creating Java simulations, ru
engineering
Use when you need to set up JMeter performance testing for a Java project — including creating the run-jmeter.sh script from the exact template, configuring load tests wi — from ja
engineering
JVM performance tuning - GC optimization, profiling, memory analysis, benchmarking — from majiayu000/claude-skill-registry
engineering
Master Java 21+ with modern features like virtual threads, pattern matching, and Spring Boot 3.x. Expert in the latest Java ecosystem including GraalVM, Project Loom, and cloud-nat
engineering
Use when you need to analyze Java profiling data collected during the detection phase — including interpreting flamegraphs, memory allocation patterns, CPU hotspots, thre — from ja
engineering
Use when you need to set up Java application profiling to detect and measure performance issues — including automated async-profiler v4.0 setup, problem-driven profiling — from jab
engineering
Use when you need to refactor Java code based on profiling analysis findings — including reviewing docs/profiling-problem-analysis and docs/profiling-solutions, identifyi — from ja
engineering
Use when you need to verify Java performance optimizations by comparing profiling results before and after refactoring — including baseline validation, post-refactoring r — from ja
engineering
Java-specific tooling, documentation standards, testing practices, and modern idioms. Use when working with Java code or Java-based projects on the JVM.
engineering
Java Quarkus development guidelines for building cloud-native applications with fast startup, minimal memory footprint, and GraalVM native builds
engineering
Use when you need to refactor Java code for high performance — including memory/allocation reduction, CPU hot-path optimization, and syntax/API/control-flow improvements. This shou
engineering
Use when you need to refactor Java code to adopt modern Java features (Java 8+) — including migrating anonymous classes to lambdas, replacing Iterator loops with Stream A — from ja
engineering
Use when the user asks to add resilience patterns, handle service failures, implement circuit breaker, retry, rate limiter, bulkhead, or timeout in a Spring Boot project using Resi
engineering
WHEN: Java code review, Java idioms, exception handling, collections, streams, Java 17+ features WHAT: Exception patterns + resource management + null safety + stream usage + moder
engineering
Java coding rules from ai-toolkit: coding-style, frameworks, patterns, security, testing. Triggers: .java, pom.xml, build.gradle, Spring, Spring Boot, JPA, Hibernate, JUnit, Maven,
engineering
Use when you need to apply Java secure coding best practices — including validating untrusted inputs, defending against injection attacks with parameterized queries, mini — from ja
engineering
Développement Java avec Spring Boot, Spring Security et l'écosystème Spring. Se déclenche avec "Java", "Spring Boot", "Spring", "JPA", "Hibernate", "Maven", "Gradle", "Sp — from en
engineering
Use when the user asks to add AI features, integrate Spring AI or LangChain4J, build a chatbot, implement RAG (retrieval-augmented generation), use vector stores, stream LLM respon
engineering
Java Spring Boot development guidelines with best practices for building robust, secure, and maintainable enterprise applications
engineering
Production-ready Java Spring Boot project structure architect - validates and scaffolds enterprise-grade Spring Boot 3.x applications with Hexagonal Architecture. Use when scaffold
engineering
Java service standards for Bitso projects. Covers tech stack requirements, project organization, code review guidelines, MapStruct usage, and build verification practices. Use when
engineering
Java testing guidelines using Spock Framework and Groovy. Covers test structure, mocking patterns, persistence testing with Testcontainers, gRPC testing, and Spring Boot test confi
engineering
Use when you need to implement acceptance tests from a Gherkin .feature file for framework-agnostic Java (no Spring Boot, Quarkus, Micronaut) — finding @acceptance scenar — from ja
engineering
Advanced testing - Testcontainers, contract testing, mutation testing, property-based
engineering
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