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.
showmethecold/effective-java-skill
Skill Claude Code
Apply Effective Java and modern Java practices when writing, reviewing, refactoring, debugging, optimizing, or hardening Java code. Use automatically for nontrivial Java code tasks, including API design, pull requests, concurrency, resource management, exceptions, serialization, tests, security, and idiomatic style.
MCP server Claude CodeCodexCursor +2
Debug live JVMs through JDWP — from any MCP-compatible agent. Runs locally from the jdwp-mcp Python package.
almasumdev/awesome-java-android-agent-skills
Skill Claude CodeCodex
Expert guidance on writing and maintaining Android Gradle build files in Groovy DSL for a Java project — product flavors, signing configs, build types, and dependency management. Use this when configuring build.gradle for new modules or flavors.
MCP server Claude CodeCodexCursor +2
Maven Central MCP — Java/JVM artifact registry. Remote server at gateway.pipeworx.io.
vlad-public-code/org.json-kula.valem
MCP server Claude CodeCodexCursor +2
Valem - Deterministic reactive state models. Create your own calculators/forms with AI. Remote server at valem.run.
MCP server Claude CodeCodexCursor +2
A MCP server for Maven dependency version checking. Runs locally from the mvn-mcp-server Python package.
MCP server Claude CodeCodexCursor +2
MCP server providing Java development capabilities through Eclipse JDT.LS. Runs locally from the jons-mcp-java Python package.
MCP server Claude CodeCodexCursor +2
MCP Server for resolving Maven2 module versions with caching and logging. Runs locally from the maven-artifacts-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server for Spring Boot codebase intelligence. Runs locally from the spring-api-intel-mcp Python package.
MCP server Claude CodeCodexCursor +2
MCP server "jar-inspector-mcp" as configured in pgatzka/jar-inspector-mcp. Runs locally from the jar-inspector-mcp Python package.
MCP server Claude CodeCodexCursor +2
MCP server "jdtls-mcp" as configured in Kicey/jdtls-mcp. Runs locally from the jdtls-mcp npm package.
MCP server Claude CodeCodexCursor +2
MCP server that wraps Google's OSV-Scanner to scan Java projects for known vulnerabilities. Runs locally from the osv-scanner-mcp npm package.
Plugin Claude Code
Bundles 10 skills, 24 agents, 2 hooks, 1 MCP server · 2,709 tokens together
Conversational Java/Spring Boot project generation, extension, and migration. Exposes the Trabuco CLI's architecture advisor, module catalog, scaffolding (including dormant-by-default OIDC Resource Server auth for API/AIAgent), and the orchestrated 14-phase migration of legacy Spring Boot 2.x/3.x repos inside Claude…
MCP server Claude CodeCodexCursor +2
MCP server that gives an AI agent real email inboxes: create, waitforotp, send and more, for Claude Desktop, Cursor and any MCP client. Runs locally from the mailflat-mcp Python package. Needs 2 environment variables to run.
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: