Java · For developers

Run the Minecraft Creator Tools command line (mct, the @minecraft/creator-tools npm package) for Minecraft Bedrock Edition add-ons.

Mojang/minecraft-creator-tools

A skill your agent uses when bundling a new plain Java/Kotlin plugin into MPS distribution archives, debugging packaging/layout issues in build/mps.xml, tracing where per-plugin artefacts end up, or…

JetBrains/MPS

A skill your agent uses when the user wants to create/generate/scaffold a new Spring Boot project (Maven or Gradle, REST API / Web App / Spring Boot + Angular full stack).

sivaprasadreddy/sivalabs-agent-skills

Edit files in Eclipse projects using MCP tools. An agent skill from gradusnikov/eclipse-chatgpt-plugin.

gradusnikov/eclipse-chatgpt-plugin

A skill your agent uses 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 with…

jabrena/plinth

Answers questions about code structure, history, bugs and PR risk using a CodeScope knowledge graph and semantic index built from the repository.

QwenLM/qwen-code

Coding standards for all Java code in fdb-record-layer. An agent skill from FoundationDB/fdb-record-layer.

FoundationDB/fdb-record-layer

Clarify or review Java Javadocs, Javadoc tags, and explanatory code comments for legibility, accuracy, and source alignment.

DataDog/dd-trace-java

Provides and generates complete CRUD workflows for Spring Boot 3 services.

giuseppe-trisciuoglio/developer-kit

A skill your agent uses when adding or updating EasyPostman Swing/TestNG UI tests that may run in headless CI or no-display Linux environments.

lakernote/easy-postman

Builds changelog entries from conventional commits in a Java project, after working out whether it uses SemVer, two-part versions or calendar versions.

decebals/claude-code-java

Guides API changes in the AppsFlyer Unity plugin across the C# layer and the Android Java and iOS Objective-C bridges, ending with a compatibility-risk report.

AppsFlyerSDK/appsflyer-unity-plugin

项目编码规范指南，遵循阿里巴巴Java开发手册，确保代码风格统一

wujun728/jun_java_plugin

Add the FireCrasher crash-recovery library to an Android app and install it in the Application class.

osama-raddad/FireCrasher

Upgrade all dependencies/packages to their latest versions for the detected language(s).

MelbourneDeveloper/dart_node

A skill your agent uses when working with Maven build phases, goals, profiles, or customizing the build process for Java projects.

TheBushidoCollective/han

Spring Boot architecture patterns, REST API design, layered services, data access, caching, async processing, and logging.

affaan-m/ECC

Spring Security best practices for authn/authz, validation, CSRF, secrets, headers, rate limiting, and dependency security in Java Spring Boot services.

affaan-m/ECC

Reference guides for the Tiger Brokers OpenAPI Java SDK: setup, market data, stock, futures and options trading, real-time push, account queries and strategy examples.

qusong0627/QuantMind

Debug Maven Surefire unit tests by running them in JDWP "wait for debugger" mode (-Dmaven.surefire.debug) and attaching to the forked test JVM using jdb (preferred for CLI/agent debugging)…

eclipse-rdf4j/rdf4j

Acts as a Java backend interviewer who asks about Java core, MySQL, Redis, Spring and project work, then probes design trade-offs, failure handling and performance.

Snailclimb/interview-guide

Writes snapshot-style approval tests in Python, JavaScript, TypeScript or Java, comparing output against an approved file instead of writing individual assertions.

lexler/skill-factory

Android Java development with MVVM, ViewBinding, and Espresso testing

alinaqi/maggy

Migrate a Testcontainers guide from testcontainers.com into the Docker docs site (docs.docker.com).

docker/docs

Verifies whether code follows Spring Modulith code structure or not.

sivaprasadreddy/sivalabs-agent-skills

Build, test, deploy, and troubleshoot Morphe patches — gradle commands, CLI usage, git workflow, common errors and fixes.

Paresh-Maheshwari/morphe-ai

A skill your agent uses when you need to set up Java application profiling to detect and measure performance issues — including trusted preinstalled async-profiler v4.x setup, problem-driven…

jabrena/plinth

Covers Clean Code principles for Java: DRY, KISS and YAGNI with before-and-after examples, plus naming conventions for variables and booleans.

decebals/claude-code-java

Cross-cutting validation methodology for verifying phase outputs and project integrity

josstei/maestro-orchestrate

Analyzes a cache trace file for the Caffeine simulator, characterizes its access pattern and recommends which eviction policies to compare.

ben-manes/caffeine

Load when building, running, testing, packaging, linting, or configuring a Kotlin/Java project with the Kotlin Toolchain (JetBrains' unified CLI, formerly Amper), when scaffolding a new or…

Kotlin/kotlin-agent-skills

Cut a new FireCrasher library release — bump the version, sync the README and ABI baseline, verify, and tag for JitPack.

osama-raddad/FireCrasher

A skill your agent uses when managing Maven dependencies, resolving dependency conflicts, configuring BOMs, or optimizing dependency trees in Java projects.

TheBushidoCollective/han

Design and implement automated tests for current Minecraft 26.x or legacy 1.21.x mods and plugins using JUnit, MockBukkit, NeoForge Game Tests, or Fabric Game Tests.

Jahrome907/minecraft-agent-skills

Guides moving a Grails application from 7.x to Grails 8 and turns the official upgrade guide into a checklist of breaking changes.

apache/grails-core

Design or change how things look in a Minecraft Bedrock Edition add-on - 3D models and textures for mobs, and pixel-art icons for items and textures for blocks.

Mojang/minecraft-creator-tools

Converts Spock/Groovy test files in a Gradle module to equivalent JUnit 5 Java tests.

DataDog/dd-trace-java

Expert in diagnosing Playwright failures. Uses the @playwright MCP to verify live DOM state.

Tahanima/playwright-java-test-automation-architecture

Expert guidance for developing with the tinystruct Java framework.

templetongroup/radiant

当需要获取目标 APK、识别加固壳类型、脱壳还原 dex、反编译得到 Java/so/H5 全量源码产物，或 android-security-audit 需要可直接开挖的输入时调用。负责 APK → 全量可审计产物（壳识别 → 脱壳 → JADX 反编译 + apktool 资源 + so 提取 + H5/assets 提取）→ 标准目录交付。命中场景：JADX 打开是…

zhaji2333/CkSKILLS

Scaffold a new Yontrack extension end-to-end — module, feature descriptor, service, GraphQL, migration, tests, and UI.

yontrack/yontrack

Updates Nacos Maintainer SDK documentation by comparing Maintainer Client interfaces with maintainer-sdk.md, then adding/removing APIs and overloads while preserving existing descriptions and…

nacos-group/nacos-group.github.io

Detects .NET intent for any C, ASP.NET Core, EF Core, Blazor, MAUI, Uno Platform, WPF, WinUI, SignalR, gRPC, xUnit, NuGet, or MSBuild request from prompt keywords and repository signals (.sln…

novotnyllc/dotnet-artisan

Run JUnit tests in Eclipse projects — all tests, by package, by class, or individual test methods.

gradusnikov/eclipse-chatgpt-plugin

Cherry-pick a PR to a target version branch. An agent skill from vaadin/flow-components.

vaadin/flow-components

This skill provides comprehensive guidance for documenting SAP APIs following the SAP API Style Guide standards.

secondsky/sap-skills

Guide for implementing a database source connector in the v2/sourcedb-to-spanner forward migration Dataflow template.

GoogleCloudPlatform/DataflowTemplates

Master Java 21+ with modern features like virtual threads, pattern matching, and Spring Boot 3.x.

davila7/claude-code-templates