1,158 mods tagged Java that install into Claude Code, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.
MCP server Claude CodeCodexCursor +2
MCP server for Java Maven projects to provide jar class definitions to AI. Runs locally from the @biggerball/java-jar-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server "java-refactor-mcp" as configured in egn88/refactor-mcp. Runs locally from the java-refactor-mcp npm package.
Plugin Claude Code
Bundles 32 skills, 16 commands, 10 agents, 7 hooks · 3,253 tokens together
Adaptive 5-layer workflow Claude Code plugin for Java Spring backend — 1% pre-flight discovery, triage routing, two-stage review, subagent dispatch, auto-evolution.
Plugin Claude Code
Bundles 8 skills, 15 agents, 9 hooks · 2,049 tokens together
Turns Claude Code into a full product-development toolkit: an opinionated plan → verify → commit engineering workflow, specialized subagents for legal compliance, UX design, backend/frontend/cloud architecture, Go/Java/TypeScript implementation, DevOps/infrastructure (Terraform, Kubernetes, Docker, AWS/Azure/GCP), and.
Skill Claude CodeCodex needs its repo
Expert knowledge for building Quarkus applications with Bazel using the rulesquarkus build system. Use when user asks about Quarkus+Bazel builds, augmentation, or troubleshooting.
Plugin Claude Code
Bundles 1 skill · 154 tokens together
Patches Claude Code's jdtls-lsp plugin to load Lombok's javaagent, eliminating false-positive Lombok diagnostics.
Skill Claude CodeCodex
Build container images for Spring Boot applications using Arconia CLI. Use when the user wants to containerize their application, build a Docker/OCI image, create a container image using Cloud Native Buildpacks or a Dockerfile/Containerfile, push an image to a registry, or build multi-architecture container images.…
full-stack-skills/spring-skills
Plugin Claude Code
Bundles 11 skills · 536 tokens together
Spring Boot ecosystem skills.
vaquarkhan/Fullstack-development-agent-skills
Plugin Claude Code
Bundles 129 skills, 10 commands · 5,059 tokens together
Fullstack UI, backend, microservice, and cloud delivery skills for Claude Code.
SachieWang/java-jdtls-mcp-server
Skill Claude CodeCodex
Navigate Java projects, find definitions, and implementation details.
Plugin Claude Code
Bundles 11 skills, 3 agents, 1 MCP server · 586 tokens together
OpenTelemetry-native, MCP-first debugging layer for multi-repo Spring Boot microservice fleets. Cross-repo call-chain tracing, traceid-correlated log timelines with code-grounded root-cause hypothesis, and a stdlib MCP server exposing fleet operations as typed tools.
glaforge/java-stdio-mcp-server
Skill Claude CodeCodex
Scaffolds and installs zero boilerplate Java-based MCP STDIO servers using JBang and LangChain4j for Gemini CLI. Use this to quickly bootstrap an MCP server from scratch.
Skill Claude CodeCodex
Use when you need to review, improve, or troubleshoot a Maven pom.xml file — including dependency management with BOMs, plugin configuration, version centralization, multi-module project structure, build profiles, or any situation where you want to align your Maven setup with industry best practices. Part of the…
Skill Claude CodeCodex
Act as a Senior/Lead Java Backend Engineer. Use when user asks to write, review, or architect Java code, Spring Boot 3 services, JPA/Hibernate, Maven/Gradle, microservices, REST/gRPC APIs, security, observability, or event-driven systems.
Skill Claude CodeCodex
Use when writing, reviewing, or refactoring Java code to enforce baseline conventions for imports, nullability, immutability, exceptions, resource handling, naming, and concurrency.
demodev-lab/claude-code-plugin-demokit
Plugin Claude Code
Bundles 33 skills, 19 commands, 10 hooks · 2,187 tokens together
A Claude Code plugin for Spring Boot back-end development, built around the PDCA method: plan, do, check, and act. It includes workflows for Java, Spring Boot, backend development, and code generation.
Skill Claude CodeCodex
Discover bounded Java method drill candidates or run a Probe-guided diagnostic drill for one selected method and return an evidence-backed Markdown report.
Plugin Claude Code
Bundles 28 skills · 1,171 tokens together
Clean Code, idiomatic Go, and Gang of Four design pattern skills for Claude Code. Python, TypeScript, Java, Go.
Plugin Claude Code
Bundles 1 skill, 1 MCP server · 126 tokens together
Test Minecraft plugins end to end: drive a real Paper server and real protocol bots.
MCP server Claude CodeCodexCursor +2
MCP server "arthas-mcp" as configured in x0c/arthas-mcp. Runs locally from the arthas-mcp npm package.
Dmitriusan/mcp-jvm-diagnostics
MCP server Claude CodeCodexCursor +2
MCP server for JVM diagnostics — analyze thread dumps, detect deadlocks, parse GC logs, and get JVM tuning recommendations. Runs locally from the mcp-jvm-diagnostics npm package.
Plugin Claude Code
Bundles 2 skills · 582 tokens together
Kora Framework development skill for building production-grade Java/Kotlin services — with compile-time DI, HTTP, Database, Kafka, gRPC, SOAP, OpenAPI, Telemetry, AOP. Zero reflection, zero proxies, synchronous contracts on virtual threads, AI agent friendly. For Kora version 2.x.
maxtrezzi/java-best-practices-skills
Plugin Claude Code
Bundles 1 skill · 202 tokens together
Expert Java code generation and review grounded in modern idioms, version-aware across Java 17 and later (17, 21, 25, and current non-LTS).
Plugin Claude Code
Bundles 1 command · 8 tokens together
Claude Code plugin for Java development with Eclipse JDT LS integration, 12 automated hooks for Maven/Gradle builds, linting (SpotBugs, Checkstyle), formatting, and testing (JUnit).
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: