Java for Claude Code

DVNghiem/FlowDeck

Skill Claude CodeCodex

Modern Java 17+ patterns — records, sealed classes, Stream API, CompletableFuture, Spring Boot, JPA. Activate when writing or reviewing Java.

FgForrest/mcp-jdwp-java

Plugin Claude Code

Bundles 2 skills, 1 hook, 1 MCP server · 127 tokens together

Java JDWP debugger via MCP — set breakpoints, inspect runtime state, evaluate expressions, mutate variables, catch exceptions at throw site, trace execution with logpoints.

kpavlov/tachyon

Skill Claude CodeCodex

Read fictional Elvish star patterns for gentle guidance and omens.

omnifaces/claude-faces-expert

Skill Claude Code

Migrate a Jakarta Faces project from one version to another (e.g. JSF 2.3 to Faces 4.1).

Ashfaqbs/software-dev-ai-claude-toolkit

Skill Claude CodeCodex

Spring Boot architecture patterns, REST API design, layered services, data access, caching, async processing, and logging. Use for Java Spring Boot backend work.

altmemy/claude-code-templates

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.

hzy970907/fish-claude-code

Skill Claude CodeCodex

Common 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.

PIsberg/vibetags

Skill Claude CodeCodex

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.

JetBrains/junie-extensions

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…

jyt6640/persona-harness

Skill Claude CodeCodex

(PH) Resolve material product uncertainty with evidence-based, answer-dependent questions; skip facts and decisions already established.

rootbr/rooted

Plugin Claude Code

Bundles 2 skills, 3 agents · 725 tokens together

Software-craft build-and-review from corpora of sourced rule cards — universal, Python and Java — a deterministic pre-pass, a finder per triggered card, a skeptic per finding, a developer agent that designs and builds by the cards.

jmix-framework/jmix-agent-toolkit

Skill Claude CodeCodex

Create or change a persistent Jmix JPA entity and its required surrounding artifacts.

idachev/mcp-javadc

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.

linshidream/skill-hub

Skill Claude CodeCodex

Initialize a project scaffold into an empty directory (or add a new child module to an existing Java project). Two engineering families: Java (java-web / java-mcp → maven + Docker image) and frontend (web-pc = vite+React+antd PC web / taro-mobile = Taro3.6+NutUI3.0 multi-end H5+WeChat miniprogram → pnpm exact-version…

bobmatnyc/claude-mpm-agents

Skill Claude CodeCodex

5 async/concurrent patterns with full Java implementations for high-performance systems.

lltx/skills

Skill Claude Code

Simplifies, refines, and optimizes Java code for clarity, safety, and maintainability while preserving all functionality. Use whenever you've written or modified Java code, when the user asks to "simplify", "clean up", "optimize", "refactor", or "review" Java code, when implementing Java features, fixing Java bugs, or…

wangheng19901021/skills

Skill Claude CodeCodex

Use when generating or reviewing Java backend code (Service/Controller/Mapper) that touches a database, Redis, MQ, RPC, SMS/email, or file writes. Applies a 5-gate checklist (requirements review, concurrency safety, transaction boundaries, null-safety, security) distilled from real production incidents, so…

stacktale/stacktale

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.

progmodEK/flow-driven-domain

Plugin Claude Code

Bundles 1 skill · 249 tokens together

Scaffolds a complete, runnable Spring Boot application on top of the flow-driven-domain (FDD) library (io.github.progmodek:flow). Turns a natural-language process description into states/actions/transitions, a workflow JSON, and the full project.

aoreshkov/kotlin-lib-mcp

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.

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.

PieceOfFall/jdbg

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…

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…

mindcockpit-ai/cognitive-core

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.