The best java mods

1,445 mods in the catalogue carry this category. These 36 are the ones that pass every gate. Every gate: original work, not a copy · security scan A or B · a licence that permits reading the source · an actively maintained repository people actually use. Order is the composite score — reputation, freshness, safety, originality, content and traction — not anyone's opinion.

#ModTypeStarsScanTokensRating
1 oss-fuzzapache/tikaRun Tika's OSS-Fuzz Jazzer targets locally against a working-tree checkout — build the image, build fuzzers from local source, fuzz a target, run a corpus as a regression pass, reproduce a crash, and add seeds. Use for "fuzz the OneNote parser", "run OneNoteParserFuzzer against these files", "reproduce an OSS-Fuzz… Skill 4.1k A 90 —
2 wxjava-module-selectorbinarywang/WxJavaA decision guide for choosing the correct WxJava Maven module, dependency management file, and example for a WeChat use case. WxJava is a Java software development kit for services such as official accounts, mini programs, and payments. Skill 33k A 86 —
3 agentscope-javaagentscope-ai/agentscope-javaExpert Java developer skill for AgentScope Java framework - a reactive, message-driven multi-agent system built on Project Reactor. Use when working with reactive programming, LLM integration, agent orchestration, multi-agent systems, or when the user mentions AgentScope, ReActAgent, Mono/Flux, Project Reactor, or… Skill 6.3k A 91 —
4 cu-sdk-sample-runAzure/azure-sdk-for-javaRun a specific sample for the Azure AI Content Understanding Java SDK. Use when users want to run a particular sample like Sample02AnalyzeUrl or Sample03AnalyzeInvoice. Skill 2.6k A 41 —
5 llm-judgeAtmosphere/atmosphereAI quality judge that scores agent responses 0-10 across helpfulness, accuracy, completeness, and clarity. Use when evaluating multi-agent output or implementing LLM-as-judge quality gates. Skill 3.8k A 43 —
6 release-pluginflutter/flutter-intellijPrepare and execute a new release for the flutter-intellij plugin, including updating dependencies, compatibility bounds, changelogs, and verification. Skill 2.0k A 30 —
7 continuous_profiling_jvmgetsentry/sentry-javaJVM Continuous Profiling (sentry-async-profiler). Cursor rule 1.4k A 13 —
8 design-patternsdecebals/claude-code-javaCommon design patterns with Java examples (Factory, Builder, Strategy, Observer, Decorator, etc.). Use when user asks "implement pattern", "use factory", "strategy pattern", or when designing extensible components. Skill 770 A 47 —
9 plinth-tech-leadjabrena/plinthTech lead for Java Enterprise Development. Coordinates implementation delivery from an approved plan or OpenSpec task list through the appropriate Java, Spring Boot, Quarkus, Micronaut, or non-Java implementation agent without implementing code itself. Agent 460 A 52 —
10 self-improveShaftHQ/SHAFT_ENGINEUse when running ChaosEngine Learning Session self-improve. Harness lessons are GitHub issues only. Product lessons may queue after delivery or on request. Skill 418 A 33 —
11 eddi-screenslabsai/EDDIHow an EDDI Manager page is actually built — the app shell, the list-page pattern, detail pages, the config-editor chrome, wizards, and loading/empty/error states. Load before creating or restructuring a page. Skill 390 A 50 —
12 dr-jskilljdubois/dr-jskillCreates Java + Spring Boot projects: Web applications, full-stack apps with Vue.js or Angular or React or vanilla JS, PostgreSQL, REST APIs, and Docker. Use when creating Spring Boot projects, setting up Java microservices, or building enterprise applications with the Spring Framework. Skill 345 A 59 —
13 piomin marketplacepiomin/claude-ai-spring-bootPlugin marketplace listing 1 plugin: spring-boot-template. Plugin 1.4k A — —
14 kmp-lspHessesian/kmp-lspKotlin/Java/Swift LSP server for code navigation in Android and iOS codebases. Use when navigating Kotlin, Java, or Swift source files: finding class definitions, listing symbols, jumping to implementations, finding all usages, checking type signatures, or switching workspace between projects. Triggers for: "find this… Skill 207 A 114 —
15 coding-guardexplyt/spring-pluginCompact coding guidelines for the explyt/spring-plugin repository - covers process rules (think first, simplicity, surgical changes), module layout, IntelliJ Platform threading and PSI rules, inspection and test conventions, message bundles, statistics tracking, and PR hygiene. You must call this skill before any code… Skill 167 A 67 —
16 soloncode-skin-skillopensolon/soloncodeA tool that packages a visual theme for SolonCode Web UI as an installable ZIP file. SolonCode is a web-based coding interface, and a skin changes its colors, backgrounds, and overall appearance. Skill 198 A 78 —
17 dev-cyclexberg-io/crawlbergCrawlberg mise task loops for alef regeneration, core and binding builds, e2e generate/build/test and cleanup, plus known e2e gotchas. Use when unsure which task to run, or when a crawlberg build, alef regen or e2e run misbehaves. Skill 195 A 60 —
18 bashopensolon/solon-aiA command-line agent for running Bash shell commands, terminal tasks, and Git operations. Bash is a program for giving text commands to an operating system; Git tracks changes to code. Agent 470 A 31 —
19 imperial-censorTheEterna/api2mcp4jAn independent code-review and testing role for Java projects. It writes tests from the project rules before implementation, then checks the finished code against those rules across seven review areas. Agent 113 A 72 —
20 sbceAdamBien/airailsSpec-driven BCE workflow where one capability spec equals one business component (same name) and the spec is the boundary contract. Invoked as /sbce new|apply (or by intent), it drives declare → converge; the stack's own test loop is the oracle for "done". new accepts a BC name or a natural-language feature… Skill 62 A 215 —
21 spring-boot-4-conventionsloiane/specs-driven-development-spring-angularSpring Framework 7 / Spring Boot 4 idioms and defaults. Use when writing or reviewing controllers, services, configuration, HTTP clients, async/virtual-thread code, or anything touching Spring's programming model. Skill 62 A 50 —
22 ai4j-app-builderLnYo-Cly/ai4jUse this skill when helping users build applications with AI4J in their own Java or Spring Boot projects, including first chat, streaming, tool/function calls, MCP, RAG, memory, Agent runtime, Coding Agent CLI embedding, FlowGram integration, provider configuration, dependency selection, and troubleshooting. It guides… Skill 437 A 120 —
23 rsid-sdkrealsenseai/RealSenseIDRealSenseID face authentication SDK reference. Use when writing code for face enrollment, authentication, host-mode faceprint extraction/matching, device configuration, user management, device discovery, camera preview, logging, or serial connection. Covers C++ (RealSenseID namespace), Python (rsidpy), and C# (rsid). Skill 122 A 70 —
24 appsec-workflowseqra/opentaintFind application-specific vulnerabilities with whole-program static taint analysis and write rules and dependency models for future scans. Plugin 172 A — —
25 java-devsivaprasadreddy/sivalabs-agent-skillsA collection of agents, skills, hooks, commands, and rules for AI Agentic development workflow. Plugin 194 A — —
26 android-sdksanjeed5/awesome-cursor-rules-mdcThis guide provides definitive best practices for Android SDK development in Java, focusing on modern architecture, Jetpack libraries, performance, security, and testing. Cursor rule 3.6k A 3,791 —
27 springboot-skills-marketplacea-pavithraa/springboot-skills-marketplacePlugin marketplace listing 5 plugins: springboot-architecture, mattpocock-picks, html-plan, grill-page, pstack. Plugin 80 A — —
28 cellarVirtusLab/cellarLook up the public API of any JVM dependency (Scala 3, Scala 2, Java) from the terminal. Plugin 104 A — —
29 mcp-zap-serverdtkmn/mcp-zap-serverMCP server "mcp-zap-server" as configured in dtkmn/mcp-zap-server. Runs in Docker (ghcr.io/dtkmn/mcp-zap-server:v0.8.0). Needs 8 environment variables to run. MCP server 68 A — —
30 developer-kit-javagiuseppe-trisciuoglio/developer-kitComprehensive Java development toolkit with Spring Boot, testing, LangChain4J, and AWS integration. Plugin 367 A — —
31 quarkus-agentquarkusio/quarkus-agent-mcpMCP server for AI coding agents to create, manage, and interact with Quarkus applications. Provides tools for project scaffolding, dev mode lifecycle, extension skills, Dev MCP proxy, and documentation search. Plugin 56 A — —
32 deptrustclidey/deptrustInstall deptrust, a local package vulnerability checker and MCP server for AI agents. Runs locally from the @clidey/deptrust npm package. MCP server 62 A — —
33 spring-security-6xuansenpa1/skillreviseMigrate Spring Security 5 to Spring Security 6 configuration. Use when removing WebSecurityConfigurerAdapter, replacing @EnableGlobalMethodSecurity with @EnableMethodSecurity, converting antMatchers to requestMatchers, or updating to lambda DSL configuration style. Covers SecurityFilterChain beans and authentication… Skill 57 A 63 —
34 java-reviewermturac/everything-openai-codexExpert Java code reviewer for Spring Boot and Quarkus projects. Automatically detects the framework and applies the appropriate review rules. Covers layered architecture, JPA/Panache, MongoDB, security, and concurrency. MUST BE USED for all Java code changes. Agent 75 A 55 —
35 music-catalogVinist123/zhulingA lookup tool for a built-in, fixed catalogue of singers and songs. It can answer only from the catalogue included with the skill. Skill 51 A 16 —
36 jdb-agentic-debugger marketplacebrunoborges/jdb-agentic-debuggerJava debugging tools for AI agents using JDB (Java Debugger CLI). Plugin 69 A — —

Want everything, not just what passes the gates? Browse the full category from any type hub, or search it. This shelf recomputes nightly from the measurements.