Java

How to add a Dev UI page to a Quarkus extension: deployment processors, runtime-dev JSON-RPC services, and Lit web components.

quarkusio/quarkus

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

Read these rules whenever you add, modify, or review bind methods (e.g.

vaadin/flow-components

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

Used to start or stop the project's server in development mode via scripts, or run DtAdmin for test cluster O&M operations, or run benchmarks.

dtprj/dongting

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

Create or update GraalPy third-party package and Rust crate compatibility patches under graalpython/lib-graalpython/patches, including PyPI source preparation, Cargo crate autopatching, rebasing…

oracle/graalpython

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

Launch and stop Java applications in Eclipse. An agent skill from gradusnikov/eclipse-chatgpt-plugin.

gradusnikov/eclipse-chatgpt-plugin

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

Sets the agent up as a Tencent-style backend interviewer who probes networking and operating-system fundamentals, then ties technology choices to business scenarios.

Snailclimb/interview-guide

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

DataDog/dd-trace-java

3rd-party test and monitor result ingestion into Dynatrace Grail via the platform events ingest API (platform/ingest/custom/events/).

Dynatrace/dynatrace-for-ai

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