Java · For developers

A skill your agent uses to fix unstable Jetpack Compose types once a stability diagnosis has identified them.

rosuH/EasyWatermark

Test-Driven Development workflow for BitcoinAddressFinder — delegates to the generic Java TDD skill and adds project-specific context

bernardladenthin/BitcoinAddressFinder

Idiomatic Go - package and interface design, error wrapping, table-driven tests, generics, the modern standard library (slices/maps/cmp/errors.Join), current syntax, and logging discipline.

inference-gateway/inference-gateway

Jimmer ORM 开发助手（XiaomiAlbumSyncer 服务端），帮助编写实体映射代码、DTO 和 DSL 查询语句。适用于：(1) 定义或修改 Jimmer 实体（使用 @Entity 注解的 interface）；(2) 编写 Jimmer DSL 查询代码；(3) 配置实体关联关系（@ManyToOne, @OneToMany, @ManyToMany）；(4)…

Coooolfan/XiaomiAlbumSyncer

指导 OPanel 扩展的创建、实现、审查、调试与兼容性迁移。Use when a task mentions OPanel extension development, extension.json, @Extension lifecycle methods, OPanelAPI, extension backend routes, extension sidebar page…

opanel-mc/opanel

Plans a WxJava version upgrade, checking the BOM, module dependencies, JDK version and configuration, with phased steps and clear rollback conditions.

binarywang/WxJava

Diagnose and resolve dd-trace-java CI failures from a module's muzzle task or the runMuzzle aggregate.

DataDog/dd-trace-java

Run or debug the coastline rendering test (CoastlineRenderingTester / utilities.sh test-coastline-rendering) that compares locally rendered tiles against tile.osmand.net and reports water mask…

osmandapp/OsmAnd-tools

Add or extend Redis commands in the Jedis client API — a new core command, a family of new commands, an extension to an existing command's options, or a module command (Search/TimeSeries/JSON/Bloom).

redis/jedis

根据用户给出的 Java/Kotlin 工具类或 View 相关源码，设计并实现 androidx.databinding.BindingAdapter。

afkT/DevUtils

Gives an agent the architecture knowledge and controller, service and template patterns needed to write correct, idiomatic code in the OpenOlat learning management system.

OpenOLAT/OpenOLAT

Analyze codebases and automatically generate architecture diagrams, flowcharts, and org charts.

zebbern/claude-code-guide

Java/Spring Boot 编码规范：用于编写、审查、重构和讲解 Java 代码。适用于 Java 风格、Spring Boot 架构、Controller/Service/Manager/DAO 分层、API 边界、Entity/VO/Form/DTO/BO 设计、MyBatis/MyBatis-Plus 持久化、事务、异常、日志、安全、性能、测试和 Java 代码评审等场景。默认结合…

Snailclimb/AIGuide

A skill your agent uses when adding a new remote/network endpoint (a RemoteOperation / OCSRemoteOperation) to this Nextcloud Android library, or when the user says "add an endpoint", "new remote…

nextcloud/android-library

Install and verify Anserini quickly by downloading the published fatjar from Maven Central instead of cloning or building the source repository.

castorini/anserini

Guides building, debugging and tuning apps on the Claude API and Anthropic SDK, including prompt caching, and migrating code between Claude model versions.

warpdotdev/warp

A skill your agent uses to produce a risk-based refactor + test plan for recently-changed code on a diff/branch/PR by computing CRAP (complexity × untested) on changed methods.

swingerman/engineer

Run automated DPIS HyperOS device smoke tests for package-specific dp/font emulation or replacement.

Kwensiu/DPIS

Java conventions for the Opik backend: layered resource, service and DAO classes, naming rules, Lombok and Guice usage, and notes on MySQL, ClickHouse, migrations and testing.

comet-ml/opik

在 wangmarket/网市场 仓库或保持同样目录结构的派生项目中进行安装、运行、模板开发、插件开发、JSP/Spring Boot 二次开发、控制器或视图重写、问题排查与验证时使用。适用于把整个 skills/ 目录直接放到项目根目录后，让大模型自动参考本地仓库结构、官方文档索引与改动工作流；不包含 AI-SEO 产品文档。

xnx3/wangmarket

Prices each step of the window climber algorithm by disabling it in turn, to find steps that no longer earn their keep and branches that no longer fire.

ben-manes/caffeine

一键生成完整业务模块代码（SQL/Entity/DAO/XML/Repository/Service/Controller/Mapper/POJO），用于创建新的业务功能

wujun728/jun_java_plugin

Analyzes and fixes A2A Transport Compatibility Kit (TCK) issues by understanding the specification, reproducing the failure, implementing the fix, and validating it works.

a2aproject/a2a-java

A skill your agent uses when you need to add or review fuzz testing for Java APIs with CATS — including contract-driven negative testing, malformed payload validation, boundary input exploration, CI…

jabrena/plinth

Validate or fix LGPL-2.1-only headers, apply approved copyright provenance, and prepare provenance audits for renamed, split, copied, or extracted first-party code.

TotalCross/totalcross

Guide for writing modern Java 21 in a Grails and Groovy codebase: records, sealed classes, pattern matching, text blocks and how Java works alongside Groovy.

apache/grails-core

Create a new placeable block for a Minecraft Bedrock Edition add-on from a plain description, or change an existing one, such as a decorative, glowing, ore, crate, slab, stairs, or light-source…

Mojang/minecraft-creator-tools

Rules for preparing pull requests and commits in the Quarkus project: title conventions, description format, commit hygiene, labels, and contribution policies.

quarkusio/quarkus

Testing patterns for Vert.x Redis Client: test frameworks, async testing, test locations, container setup, and how to run tests.

vert-x3/vertx-redis-client

Support spec-driven development in projects that use OpenFastTrace, a system-requirements document in doc/systemrequirements.md, an arc42-style design in doc/design.md, and per-issue task plans in…

itsallcode/openfasttrace

Solon Java framework expert (NOT Spring). An agent skill from opensolon/soloncode.

opensolon/soloncode

Add integration tests to TestGCMetrics.java for new GC collector support added to new-gc-default-jmx-metrics.yaml.

DataDog/jmxfetch

Qdrant provides client SDKs for various programming languages, allowing easy integration with Qdrant deployments.

qdrant/skills

Run the Restate SDK conformance test suite locally against this SDK's Docker image.

restatedev/sdk-typescript

ShizukuX codebase integrity checks. An agent skill from qianyumeng0228/ShizukuX.

qianyumeng0228/ShizukuX

A skill your agent uses when working in the znsio/teswiz repository to modify framework code, Cucumber/TestNG hooks, Applitools visual testing flows, configs/caps, or related docs/tests.

znsio/teswiz

Add or update a Robolectric JVM unit test for the FireCrasher library.

osama-raddad/FireCrasher

A skill your agent uses when defining or reviewing Doc View behavior contracts before changing PSI parsing, DTOs, Markdown output, uploads, exports, settings, UI-visible behavior, or IntelliJ…

liuzhihang/doc-view

A skill your agent uses when modifying EasyPostman Swing UI fonts, especially when dialogs, labels, tables, tabs, or renderers look too large or too small, or when a change needs to stay consistent…

lakernote/easy-postman

使用 jar-analyzer-engine 从 JAR/WAR/Class 文件构建 SQLite 分析数据库。这是进行 Java 代码安全审计、方法调用分析的第一步。

jar-analyzer/jar-analyzer-claude

Generate, build, and test Azure SDKs locally from TypeSpec with automatic customization.

Azure/azure-sdk-for-android

Runs three parallel reviewers on a diff or branch, one blind, one design-aware and one matching past bug patterns, then triages their findings.

ben-manes/caffeine

Provides comprehensive code review guidance for React 19, Vue 3, Rust, TypeScript, Java, Python, and C/C++.

andrew-yangy/gru-ai

A skill your agent uses when working on the Harmonica Kotlin DB migration tool — planning, phase work, PRs, or anything touching this repo.

KenjiOhtsuka/harmonica

Guide maintainers through the multi-step release process — version bump, CI verification, tagging, Maven Central deployment, SNAPSHOT bump, and versioned documentation.

a2aproject/a2a-java

Review changes in clickhouse-java for correctness, compatibility, API stability, and missing tests.

ClickHouse/clickhouse-java

Diagnose, troubleshoot, and advise on any Qdrant deployment by loading the latest official Qdrant skills live from skills.qdrant.tech.

qdrant/skills

Initialize git in a local project without a repository, connect it to a remote, and generate a proper .gitignore.

exception-coder/npe_get_jobs