Java

1,628 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

gregario/lorcana-oracle

Instructions file Claude Code

Instructions for gregario/lorcana-oracle, covering project instructions, workflow overview, spec mode (openspec), spec sync rule and execution mode (superpowers).

not rated 3 2mo ago A 725 tokens original MIT

java-backend-team

146

yandong2023/java-backend-team

Skill Codex

A set of working guidelines for developing Java back-end software, especially applications built with Spring and common databases and messaging systems.

not rated 3 +1 4mo ago A 0 tokens original MIT

jbang-mcp-server

147

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.

not rated 2 6mo ago B 43 tokens

JonHHH09/job-engine-spring

Instructions file CodexOpenCode

AGENTS.md instructions for JonHHH09/job-engine-spring, covering repository guidelines, project structure & module organization, build, test, and development commands, architecture and major subsystems.

not rated 2 4d ago A 2,365 tokens original Apache-2.0

jabrena/cursor-rules-examples

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…

not rated 2 9d ago A 71 tokens original Apache-2.0

spring-batch-6

152

antonarhipov/sdd-workshop

Skill Claude Code

Authoritative guidance for Spring Batch 6.x — writing new batch jobs, migrating from 5.x to 6.x, and reviewing or debugging batch code. Make sure to use this skill whenever the user mentions Spring Batch, batch jobs, Tasklets, chunk-oriented steps, item readers/writers, or these APIs: JobRepository, JobOperator…

not rated 2 3mo ago A 224 tokens

senior_java_engineer

153

Sorravit/BEACON

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.

not rated 2 1mo ago A 64 tokens

quintesse/leyden-perf-test

Instructions file CodexOpenCode

Instructions for quintesse/leyden-perf-test, covering agents.md - leyden performance test harness, project overview, purpose, primary goals and current state.

not rated 2 1mo ago B 8,606 tokens original Apache-2.0

java

155

mywand/cusrsor-do-it

Cursor rule Cursor

A set of coding and engineering guidelines for modern Java, including Java 17 and 21. It covers project structure, dependencies, naming, errors, testing, security, databases, APIs, deployment, and code quality.

not rated 2 7mo ago A 0 tokens original Apache-2.0

java-coding-guideline

157

gabia/agent-skills

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.

not rated 2 1mo ago A 41 tokens original MIT

nimbly-dev/mcp-java-dev-tools

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.

not rated 2 yesterday A 36 tokens

kora-v1

163

kora-projects/kora-skills

Plugin Claude Code

Bundles 41 skills · 2,807 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, AI agent friendly. For Kora version 1.x.

not rated 1 5d ago A tokens not measured original Apache-2.0

mustafagoksever/java-inspector

Instructions file CodexOpenCode

AGENTS.md instructions for mustafagoksever/java-inspector, covering agent instructions — java-inspector, what this is, developer commands, runtime requirements and architecture & entry points.

not rated 1 14d ago A 3,405 tokens original Apache-2.0

apply-effective-java

165

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.

not rated 1 3mo ago A 64 tokens

lalrow/copilot-java-sample

Instructions file GitHub Copilot

Copilot instructions for lalrow/copilot-java-sample, covering team coding standards — always loaded, 1. project architecture, 2. null handling, 3. exception handling and 4. logging.

not rated 1 4mo ago A 1,542 tokens

jdwp-mcp CLAUDE.md

167

dronsv/jdwp-mcp

Instructions file Claude Code

Claude Code instructions for dronsv/jdwp-mcp, covering claude.md, what this is, build commands, architecture and jdwp-client crate.

not rated 1 4mo ago A 1,016 tokens fork MIT

mcp-jvm-diagnostics

168

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.

not rated 1 25d ago A tokens not measured original MIT

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