Skills and MCP tagged “java”

java-springboot official github skill Gives GitHub Copilot Spring Boot development practices, from project layout to tests and security. Use it when writing or reviewing Java application code. GitHub Copilot 21,272installs springboot-patterns affaan-m skill A skill for Java Spring Boot architecture and REST API work. Use it when building or reviewing controllers, services, data access, caching, or async processing. Claude Code CX Codex Cursor +1 5,000installs java-coding-standards affaan-m skill This skill applies Java conventions to Spring Boot and Quarkus code. Use it when an agent writes or reviews services built with either framework. Claude Code CX Codex Cursor +1 5,000installs springboot-security affaan-m skill Reviews security in Java Spring Boot services, covering authentication, authorization, input validation, CSRF, secrets, headers, and dependencies. Claude Code CX Codex Cursor +1 4,900installs java-junit official github skill Writes, reviews and fixes Java tests with JUnit, AssertJ and Mockito. Use it when adding, refactoring or debugging tests in Maven and Gradle projects. GitHub Copilot 11,632installs java-docs official github skill Guides Javadoc work for Java types while following the project’s documentation style. Use it when adding or revising API comments. GitHub Copilot 10,752installs create-spring-boot-java-project official github skill Creates a Spring Boot Java skeleton with Maven, database settings and Docker Compose. Use it when a new API needs PostgreSQL, Redis and MongoDB locally. GitHub Copilot 9,516installs java-refactoring-extract-method official github skill This skill guides Extract Method refactoring for complex Java methods while preserving behaviour. Use it when a method needs smaller, focused units backed by tests. GitHub Copilot 9,284installs java-refactoring-remove-parameter official github skill This skill guides an agent through removing unused or derivable parameters from Java methods and updating their callers. Use it when the change must preserve behavior and be checked with tests. GitHub Copilot 8,900installs java-mcp-server-generator official github skill This skill creates a Java or Spring Boot MCP server for exposing code, APIs, or databases to AI agents. Use it when you need a project scaffold with tests. GitHub Copilot 8,800installs java-add-graalvm-native-image-support official github skill This skill adds GraalVM Native Image support to a Java project, builds the executable, and works through build errors. Use it when you need a native build while keeping the JVM path intact. GitHub Copilot 8,700installs minecraft-plugin-development official github skill Builds and debugs Minecraft server plugins for Paper, Spigot, and Bukkit. Handles commands, listeners, configs, and minigame states. GitHub Copilot 485installs java-architect VoltAgent Community subagent Designs enterprise Java 17+ architectures and configures Spring Boot 3.x microservices. Helps migrate services, isolate domain logic, and adopt reactive pipelines. Claude Code 558installs spring-boot-engineer VoltAgent Community subagent This subagent helps plan and build Spring Boot 3+ applications, including microservices and reactive services. Use it when a project involves cloud deployment or enterprise integrations. Claude Code 336installs javax-to-jakarta-migration official github skill Migrates Java code from the javax.* namespace to jakarta.*. Use it for an explicit Jakarta EE or Tomcat 10+/11 migration request. GitHub Copilot 96installs java-helidon official github skill A GitHub Copilot skill that steers code generation toward Helidon 4 practices in SE and MP. Useful when the agent keeps emitting Helidon 3 APIs. GitHub Copilot 21installs java-upgrade official github skill Guides a Java project through a JDK upgrade and helps adopt newer language features. It covers 11 to 17, 17 to 21, and 21 to 25. GitHub Copilot 6installs java-development official github skill Guides plain Java development without frameworks, matching idioms to the target JDK release and running checks via Maven or Gradle. GitHub Copilot 3installs java-testcontainers official github skill Helps write Java integration tests using Testcontainers 2.x and JUnit Jupiter with Docker dependencies. Useful when adding container tests or migrating from version 1.x. GitHub Copilot 1installs java-debugging official github skill A skill that walks the agent through finding a Java bug: reproduce, narrow down, test one hypothesis, attach a debugger. Useful once logs stop explaining anything. GitHub Copilot 1installs Java MCP Expert official github subagent Guides development of Model Context Protocol servers in Java using MCP Java SDK 2.x. Useful when configuring stdio transports, tool schemas, or Spring AI 2.0+ integrations. GitHub Copilot ★ 40,369repo stars modernization-workflow official EMEA App GBB plugin Visualizes and guides the GitHub Copilot Modernize CLI workflow for .NET, Java, and C++ repositories across Assess, Plan, and Execute stages. GitHub Copilot ★ 40,369repo stars java-modernization-studio official Ayan Gupta plugin Interactive canvas for GitHub Copilot that guides Java app modernization workflows. It inspects repositories, sets validation gates, and runs migration tasks from real artifacts. GitHub Copilot ★ 40,369repo stars