Java for Claude Code

1,148 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.

Also for Claude Code: anthropic · Git and workflow · Python · Web3 and blockchain · React · TypeScript · Go · docker · Rust · Localization · PostgreSQL · nextjs

zhihu-search

01

itwanger/toBeBetterJavaer

Skill Claude CodeCodex

A search skill for finding content on Zhihu, a Chinese question-and-answer and article platform, through its search API.

not rated 18k +25 yesterday A SkillSpector: pass 103 tokens

agentscope-java

02

agentscope-ai/agentscope-java

Skill Claude CodeCodex

Expert 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…

not rated 6.1k +77 today A 91 tokens original Apache-2.0

load-test-ops

03

camunda/camunda

Skill Claude CodeCodex

Trigger, monitor, update, profile, and stop Camunda load tests using gh CLI and kubectl directly — no MCP server required.

not rated 4.3k +13 changed 7d ago A SkillSpector: pass 31 tokens

oss-fuzz

04

apache/tika

Skill Claude CodeCodex needs its repo ✓ vendor

Run 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…

not rated 4.1k +5 today A SkillSpector: warn 90 tokens original Apache-2.0

llm-judge

05

Atmosphere/atmosphere

Skill Claude CodeCodex

AI 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.

not rated 3.8k +1 today A SkillSpector: pass 43 tokens original Apache-2.0

megalinter

06

oxsecurity/megalinter

Plugin Claude Code

Bundles 25 skills, 14 agents · 2,208 tokens together

Set up, run and fix MegaLinter on any repository: 100+ linters for 69+ languages, 23+ formats and 21+ tooling formats, from CI or locally.

not rated 2.6k +4 changed 2d ago A tokens not measured AGPL-3.0

cu-sdk-sample-run

07

Azure/azure-sdk-for-java

Skill Claude CodeCodex needs its repo ✓ vendor

Run a specific sample for the Azure AI Content Understanding Java SDK. Use when users want to run a particular sample like Sample02AnalyzeUrl or Sample03AnalyzeInvoice.

not rated 2.6k today A SkillSpector: warn 41 tokens original MIT

github-worktree

08

TencentBlueKing/bk-ci

Skill Claude Code

A GitHub Issue worktree workflow for creating an isolated copy of a repository for a task. A worktree lets separate branches be checked out in separate folders, while an issue records the work to be done.

not rated 2.5k +1 yesterday A SkillSpector: pass 115 tokens

release-plugin

09

flutter/flutter-intellij

Skill Claude CodeCodex

Prepare and execute a new release for the flutter-intellij plugin, including updating dependencies, compatibility bounds, changelogs, and verification.

not rated 2.0k +1 today A SkillSpector: pass 30 tokens original BSD-3-Clause

spring-tools

11

spring-projects/spring-tools

Plugin Claude Code ✓ vendor

Bundles 3 skills, 1 command · 175 tokens together

Spring Tools Language Server as an MCP server — Spring Boot diagnostics with fix playbooks, bean/endpoint/architecture insight, version and release information, plus a Spring review agent. Operates standalone without requiring JDT Language Server and watches the workspace for changes. On first run, downloads the…

not rated 986 +2 changed 6d ago A tokens not measured EPL-1.0

design-patterns

12

decebals/claude-code-java

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.

not rated 759 +6 1mo ago A SkillSpector: pass 47 tokens original MIT

skill-creator

13

ClawRunr/JavaClaw

Skill Claude CodeCodex

Create new skills, modify and improve existing skills for JavaClaw. Use when users want to create a skill from scratch, edit or improve an existing skill, or refine a skill's description so it triggers more reliably. Also use when a user asks to "turn this workflow into a skill", "save these instructions as a skill"…

not rated 753 +1 16d ago A SkillSpector: pass 80 tokens LGPL-3.0

fixture-monkey

14

naver/fixture-monkey

Plugin Claude Code

Bundles 1 skill · 42 tokens together

Write Java and Kotlin test fixtures that pin only what the scenario depends on and leave the rest random.

not rated 700 +1 25d ago A tokens not measured copy · 89% Apache-2.0

bash

15

opensolon/solon-ai

Agent Claude Code

A 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.

not rated 466 +2 today A 31 tokens original Apache-2.0

plinth-tech-lead

16

jabrena/plinth

Agent Claude CodeCursor

Tech 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.

not rated 455 +4 yesterday A 52 tokens original Apache-2.0

local-agency

17

ShaftHQ/SHAFT_ENGINE

Skill Claude CodeCodex

Use when the adopter asks to delegate to local OSS agents (OpenCode) on a READY local runtime.

not rated 417 +3 changed 5d ago A 25 tokens original MIT

eddi-screens

18

labsai/EDDI

Skill Claude Code

How 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.

not rated 387 +3 changed 23d ago A 50 tokens original Apache-2.0

dr-jskill

20

jdubois/dr-jskill

Skill Claude CodeCodex

Creates 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.

not rated 344 changed 1mo ago A 59 tokens original Apache-2.0

brunoborges/fx2048

Skill Claude CodeCodex

Build, sign, notarize, staple, validate, and troubleshoot macOS DMG releases for Java and JavaFX applications packaged with jlink/jpackage. Use when creating Developer ID signed Java desktop apps, configuring GitHub Actions release workflows, handling Apple notarization, or debugging Gatekeeper, hardened runtime, JVM…

not rated 294 15d ago A 88 tokens GPL-3.0

kmp-lsp

23

Hessesian/kmp-lsp

Skill Claude CodeCodex

Kotlin/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…

not rated 201 +1 changed 1mo ago A SkillSpector: pass 114 tokens original MIT

opensolon/soloncode

Skill Claude CodeCodex

A 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.

not rated 197 3d ago A SkillSpector: pass 78 tokens original MIT

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: