Java · For developers

Get best practices for JUnit 5 unit testing, including data-driven tests

github/awesome-copilot

Detect potential code-level performance smells in Java - streams, collections, boxing, regex, object creation.

decebals/claude-code-java

Define event-driven APIs over Kafka with Mendix business event services — publish and subscribe contracts, CREATE/DROP/DESCRIBE.

mendixlabs/mxcli

Workflow for converting, modernizing, upgrading, or re-architecting code (e.g.

griddynamics/rosetta

Model Kotlin persistence code correctly for Spring Data JPA and Hibernate.

JetBrains/skills

Builds and deploys compiled Airflow Java SDK bundles so workers can run them.

astronomer/agents

XSLT injection testing: processor fingerprinting, XXE and document() SSRF, EXSLT write primitives, PHP/Java/.NET extension RCE surfaces.

langbyyi/CyberStrikeAI-SRC

Work on the Julia port of the V5 standalone schema evaluator (src-jl/CorvusJsonSchema, package CorvusJsonSchema): loader, compiler, the fail-fast plans and fused object plans, results collector and…

corvus-dotnet/Corvus.JsonSchema

当用户执行 /ruanzhu 命令或请求生成软著源代码文档时触发。提供软著源代码 DOCX 生成规范. An agent skill from doccker/cc-use-exp.

doccker/cc-use-exp

Instrument any app with OpenTelemetry and ship metrics / logs / traces to Grafana Cloud or self-hosted Mimir / Loki / Tempo / Pyroscope.

grafana/skills

Continuously profile applications with Grafana Pyroscope and read the result as flame graphs.

grafana/skills

Guides the usage of the Gemini API on Agent Platform with the Google Gen AI SDK for enterprise AI applications.

davila7/claude-code-templates

JeecgBoot Online表单（cgform）全生命周期管理——通过API自动创建/编辑数据库表和表单配置， 支持单表、主子表、树表，26种控件类型，以及JS/Java/SQL增强、权限配置、数据CRUD、积木报表集成。

jeecgboot/skills

Hexagonal architecture layering for Java services with strict boundaries.

Gentleman-Programming/Gentleman-Skills

Decompile Java applications (JAR/WAR/APK/class) — extract archives, detect obfuscators, decompile bytecode to source, analyse license logic and secrets.

ptn1411/skill

Defensive audit of a license/entitlement/activation mechanism on software you own or are authorized to test.

ptn1411/skill

Common AWS CDK patterns and constructs for building cloud infrastructure with TypeScript, Python, or Java.

aiskillstore/marketplace

Deploy Runtime Application Self-Protection (RASP) agents to detect and block attacks from within application runtime, covering OpenRASP integration, attack pattern detection, and security policy…

mukul975/Anthropic-Cybersecurity-Skills

全维度日志分析技能。自动识别日志类型（Java应用/MySQL Binlog/Nginx/Trace/告警），提取关键实体（IP、threadid、traceid、用户、表名等），进行根因定位、告警分析、异常洞察。支持100M+大文件。触发词：分析日志、日志排查、根因定位、告警分析、异常分析。

zrt-ai-lab/opencode-skills

Guides the usage of Gemini API on Google Cloud Vertex AI with the Gen AI SDK.

JetBrains/skills

Assess and upgrade Azure workloads between plans, tiers, or SKUs, or modernize Azure SDK dependencies in source code.

microsoft/GitHub-Copilot-for-Azure

This skill helps with GitHub Copilot SDK work across Node.js/TypeScript, Python, Go, .NET, and Java.

intellectronica/agent-skills

Build event streaming and real-time data pipelines with Kafka, Pulsar, Redpanda, Flink, and Spark.

ancoleman/ai-design-components

Full Sentry SDK setup for Android. An agent skill from getsentry/sentry-for-ai.

getsentry/sentry-for-ai

Create, generate, or scaffold Makefiles with .PHONY targets and build automation.

akin-ozer/cc-devops-skills

Unified release coherence workflow for any component (CLI, GHA, or SDK).

macalbert/envilder

Azure AI Document Intelligence SDK for Java (com.azure:azure-ai-documentintelligence).

microsoft/skills

Test-driven development skill for writing unit tests, generating test fixtures and mocks, analyzing coverage gaps, and guiding red-green-refactor workflows across Jest, Pytest, JUnit, Vitest, and…

LeoYeAI/openclaw-master-skills

A skill your agent uses when exposing Spring Boot 3 application capabilities through Model Context Protocol tools, resources, or prompts.

rrezartprebreza/spring-boot-skills

A skill your agent uses when exposing Spring Boot 4 application capabilities through Model Context Protocol tools, resources, or prompts.

rrezartprebreza/spring-boot-skills

A skill your agent uses when implementing exception mapping or RFC 9457 error responses in Spring Boot 3.

rrezartprebreza/spring-boot-skills

A skill your agent uses when an application issues and validates its own first-party JWT access and refresh tokens, including authentication filters, password encoding, RBAC, and method security.

rrezartprebreza/spring-boot-skills

A skill your agent uses when defining or debugging Spring Boot 3 database transaction boundaries, rollback, propagation, optimistic-lock retries, or commit-bound events.

rrezartprebreza/spring-boot-skills

A skill your agent uses when defining or debugging Spring Boot 4 database transaction boundaries, rollback, propagation, optimistic-lock retries, or commit-bound events.

rrezartprebreza/spring-boot-skills

Privilege system reference for the HMIS project. An agent skill from hmislk/hmis.

hmislk/hmis

A skill your agent uses when reviewing, designing, or modifying Java enterprise systems and need a structured, repeatable ISO/IEC 25010:2023 quality-attribute review covering Functional Suitability…

jabrena/plinth

Current Java, Kotlin, Gradle, Maven, JUnit, JVM diagnostics, packaging, and performance guidance.

shepherdjerred/monorepo

World-class Java and Spring Boot development skill for enterprise applications, microservices, and cloud-native systems.

benchflow-ai/skillsbench

A skill your agent uses when building Spring Boot applications with Neo4j using Spring Data Neo4j (SDN 7.x/8.x) — @Node entity mapping, @Relationship, @RelationshipProperties, Neo4jRepository…

neo4j-contrib/neo4j-skills

Scan a source tree for command-injection vulnerable patterns: shell=True calls in Python subprocess, os.system / os.popen with interpolated strings, Node childprocess.exec with template literals…

jeremylongshore/tons-of-skills-marketplace

Scan a source tree for dynamic-code-execution APIs that an attacker can hijack: Python eval / exec / compile, JavaScript eval / Function() / setTimeout(string), Ruby eval / instanceeval / classeval…

jeremylongshore/tons-of-skills-marketplace

Scan a source tree for unsafe-by-default deserialization APIs: Python pickle.loads / cPickle / shelve / dill, Ruby Marshal.load / YAML.load (pre-3.1 default), Java ObjectInputStream.readObject, PHP…

jeremylongshore/tons-of-skills-marketplace

A skill your agent uses when you need to analyze Java profiling data collected during the detection phase — including interpreting flamegraphs, memory allocation patterns, CPU hotspots, threading…

jabrena/plinth

A skill your agent uses when you need to generate an AGENTS.md file for a Java repository — covering project conventions, tech stack, file structure, commands, Git workflow, and contributor…

jabrena/plinth

A skill your agent uses when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods, resource URIs, status codes, DTOs, versioning, deprecation and sunset…

jabrena/plinth

A skill your agent uses when you need to generate Architecture Decision Records (ADRs) for a Java project through an interactive, conversational process that systematically gathers context…

jabrena/plinth

A skill your agent uses when creating or refining a structured Java implementation plan from trusted issue summaries, approved designs, ADRs, OpenSpec changes, existing plans, or a valid combination.

jabrena/plinth

A skill your agent uses when Java design, refactoring, or implementation tradeoffs should be evaluated with Kent Beck's simple design rules, including passes the tests, reveals intention, has no…

jabrena/plinth