1,022 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.
Plugin Claude Code
Bundles 5 skills, 2 agents · 364 tokens together
A plugin to generate production-grade Spring Boot applications with Java, Spring Security, JPA, and comprehensive testing.
Skill Claude CodeCodex
(PH) Use only for an ambiguous product request; visibly activate, ask one plain-language question at a time, and wait for explicit approval.
Skill Claude CodeCodex ✓ vendor
Use when building, modifying, or reviewing Spring Boot 4.x applications (Spring Framework 7, Spring Security 7, Hibernate 7, Jackson 3) in Java or Kotlin — REST controllers, Spring Data JPA repositories, OAuth2 / JWT, WebFlux reactive endpoints, Kafka / event-driven code, Resilience4j, Spring Cloud, or Spring Boot…
Plugin Claude Code
Bundles 21 skills, 2 hooks · 1,758 tokens together
Maven dependency intelligence — dependency updates, vulnerability and license scanning, transitive dependency graphs, version compatibility checks, artifact search, and version-catalog management, exposed as skills and an MCP server. Works in Claude Code and Grok Build without any NPM setup.
Plugin Claude Code
Bundles 4 skills · 541 tokens together
Deep Java code review with parallel specialist agents and proactive code cleanup.
MCP server Claude CodeCodexCursor +2
One of 3 in .mcp.json
Model Context Protocol (MCP) server for Java decompilation. Runs locally from the @idachev/mcp-javadc npm package.
Plugin Claude Code
Bundles 1 command · 50 tokens together
A comprehensive Thymeleaf 3.1 reference skill for Claude Code, providing template syntax, expression language, iteration, conditionals, layout composition, and inlining guidance.
jmix-framework/jmix-agent-toolkit
Skill Claude CodeCodex
Create or change a persistent Jmix JPA entity and its required surrounding artifacts.
Skill Claude Code
AI guardrails and coding rules generated by VibeTags from @AILocked, @AIContext, and related annotations. Load this skill when writing, reviewing, or modifying code in this project.
Plugin Claude Code
Bundles 1 skill, 1 MCP server · 68 tokens together
Read your Java app's AI-ready error reports, and run a fix-run-check loop until the app is clean.
schemacrawler/SchemaCrawler-AI
MCP server Claude CodeCodexCursor +2
MCP server "schemacrawler-ai" as configured in schemacrawler/SchemaCrawler-AI. Runs in Docker (schemacrawler/schemacrawler-ai:17.9.0-1). Needs 11 environment variables to run.
Plugin Claude Code
Bundles 2 skills, 1 MCP server · 167 tokens together
Debug Java programs interactively from the command line via the jdbg CLI: launch a program or attach to a running JVM (JDWP), set breakpoints, step through code, and inspect variables, expressions, threads, and exceptions. Stateful background sessions with structured (text/JSON) output. Cross-platform, native on…
Skill Claude CodeCodex
A Java code-generation guide for MyBatis-Plus and PageHelper, libraries used to access databases and create paginated results. It covers the usual layers of a Java web application, from database entities to REST endpoints.
AyrtonAldayr/agent-skill-java-spring-framework
Skill Claude CodeCodex
Senior Java & Spring Boot 4 / Spring Framework 7 architect skill for 2026-standard development. Use when the user asks to build, scaffold, design, review, or explain Java applications using Spring Boot 4.x, Spring Framework 7.x, Spring Modulith, or any related Spring ecosystem project. Triggers include: creating REST…
Skill Claude Code
Spring Boot version upgrade paths from v2.x through v4.0. javax to jakarta migration, Spring Security 5 to 7, RestTemplate to RestClient, virtual threads, OpenRewrite recipes, and progressive migration strategies.
Skill Claude CodeCodex
A testing and quality-checking toolkit for running an application, finding bugs, and creating automated tests. It supports API tests and browser-based UI tests in Python or Java.
Skill Claude CodeCodex
A command-line tool for managing database migrations, which are controlled changes that update a database's structure over time.
Skill Claude CodeCodex
MUST BE USED PROACTIVELY. Universal read-only codebase exploration. Combines jrag graph navigation (call chains, routes, service boundaries, impact analysis, FQN resolution) with broad file-system search (grep, glob, file reading). Use for any exploration: locating code, tracing dependencies, finding patterns, 'where…
Skill Claude CodeCodex
A reference guide for LiteFlow, a Java framework for building business rules and process flows. It covers components, rules, data passed between steps, configuration sources, testing, monitoring, and AI-agent orchestration.
Plugin Claude Code
Bundles 4 skills, 1 MCP server · 203 tokens together
Answers Kotlin/Java library questions from the real published sources jar — resolved signatures, KDoc, dependency tree and source search — instead of recalling them.
Plugin Claude Code
Bundles 28 skills, 10 agents, 2 hooks · 2,560 tokens together
Java + Spring Boot TDD workflow plugin with requirements input drafting, RGB cycle, feature-level autonomous implementation, Cucumber acceptance testing, local tidying, system-wide refactoring, and 18 optional refactoring skills. Plan phase and Web App acceptance/skeleton setup now delegate to dedicated agents instead.
ns3154/alibaba-java-coding-guidelines-skill
Skill Claude CodeCodex
A set of rules for reviewing, generating, and refactoring Java code against Alibaba Java Coding Guidelines, a published style and quality guide. It also covers related Spring, MyBatis, Maven, SQL, database, logging, error-handling, and security code.
Skill Claude CodeCodex
Write Java microbenchmarks with JMH (Java Microbenchmark Harness) that produce trustworthy numbers — not numbers distorted by JIT dead-code elimination, constant folding, insufficient warmup, or single-fork JIT contamination. Use this skill whenever the user writes @Benchmark, mentions JMH, microbenchmark, throughput…
Skill Claude CodeCodex
General-purpose coding-agent workflow for Java enterprise backend projects. Use when implementing features, fixing bugs, refactoring, reviewing code/PRs, adding fields/APIs/database schema changes, changing REST/RPC endpoints, repository/mapper persistence, MQ/CDC consumers, transaction boundaries, JUnit/Mockito/Spock…
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: