CCM
/Skills
SkillsMCPMarketplacesDigestToolsAdvertise

This week in Claude

Every Monday: Claude Code, Agent SDK, MCP, and the Anthropic platform moves worth your time.

Skills by Category
Frontend DevelopmentBackend & APIsTesting & QASecurityDevOps & CI/CDGit & Pull RequestsDocumentationCode Review & QualityAI & Agent BuildingSkill Development
MCP Servers by Category
Sales & MarketingWeb & Browser AutomationDatabasesAI & LLM ToolsCloud & InfrastructureCommunication & MessagingDeveloper ToolsDesign & CreativeDocuments & KnowledgeSearch & Web Crawling
Marketplaces by Category
AI Agents & OrchestrationLLM IntegrationDevelopment ToolsFrontend & UIBackend & APIsDatabasesTesting & Code QualityDevOps & CloudSecurity & ComplianceGit & Version Control

Claude Code Marketplaces

Discover Claude Code plugins, extensions, and tools. Automatically updated directory of Anthropic Claude AI marketplaces with development tools, productivity plugins, and integrations.

Resources

  • Browse Skills
  • Browse MCP Servers
  • Browse Marketplaces
  • Skill index
  • MCP index
  • Marketplace index
  • Plugins Reference

Community

  • About
  • Tools
  • Feedback
  • Privacy Policy
  • Advertise

Built for the Claude Code community with Claude Code by mertbuilds.com

Independent project, not affiliated with Anthropic
giuseppe-trisciuoglio avatar

Langchain4j Testing Strategies

giuseppe-trisciuoglio/developer-kit
2.2k installs322 stars
Summary

Testing LangChain4j apps means dealing with non-deterministic LLM responses, which makes traditional testing a pain. This skill gives you the full spectrum: mock ChatModel responses with Mockito for fast unit tests, spin up real Ollama instances with Testcontainers for integration tests, and validate complete RAG workflows end-to-end. The code samples show proper health checks and await patterns so your tests don't flake when containers are slow to start. Honestly, the 70/20/10 testing pyramid guidance is the most useful part here. It keeps you from over-relying on expensive integration tests while still catching real issues that mocks miss.

Install to Claude Code

npx -y skills add giuseppe-trisciuoglio/developer-kit --skill langchain4j-testing-strategies --agent claude-code

Installs into .claude/skills of the current project.

CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
CodeHealth MCP ServerCodeHealth MCP Server
CodeHealth MCP Server
Protect your code quality, stop the AI slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
CodeHealth MCP ServerCodeHealth MCP Server
CodeHealth MCP Server
Protect your code quality, stop the AI slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
CodeHealth MCP ServerCodeHealth MCP Server
CodeHealth MCP Server
Protect your code quality, stop the AI slop.
Try For Free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Categories
Testing & QAAI & Agent BuildingJava & JVM
First SeenMay 16, 2026
View on GitHub

More from giuseppe-trisciuoglio/developer-kit

All 102 skills →
  • Aws Sdk Java V2 Dynamodb2.2k
  • Rag2.2k
  • Aws Rds Spring Boot Integration2.2k
  • Aws Sdk Java V2 Lambda2.2k
  • Aws Sdk Java V2 Core2.2k
  • Aws Sdk Java V2 Bedrock2.2k
  • Aws Sdk Java V2 Kms2.2k
  • Aws Sdk Java V2 Secrets Manager2.2k
  • Aws Sdk Java V2 Messaging2.2k
  • Aws Sdk Java V2 Rds2.2k
  • Nextjs Authentication2.2k
  • Nextjs Data Fetching2.2k
  • Nextjs Code Review2.1k
  • Zod Validation Utilities2.1k
  • Nestjs Code Review2.1k
  • React Code Review2.1k
  • Nextjs Deployment2.1k
  • Aws Lambda Python Integration2.1k
  • Aws Lambda Typescript Integration2.1k
  • Nestjs Drizzle Crud Generator2.1k
  • Better Auth2.1k
  • Aws Lambda Java Integration2k
  • Aws Lambda Php Integration2k
  • Sonarqube Mcp2k

Recommended

More Testing & QA →
affaan-m avatar
python-testing

affaan-m/ecc

Python testing strategies using pytest, TDD methodology, fixtures, mocking, parametrization, and coverage requirements.
2.1k
240.8k
affaan-m avatar
rust-testing

affaan-m/ecc

Rust testing patterns including unit tests, integration tests, async testing, property-based testing, mocking, and coverage. Follows TDD methodology.
2.1k
240.8k
affaan-m avatar
golang-testing

affaan-m/ecc

Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD methodology with idiomatic Go practices.
2k
240.8k
affaan-m avatar
laravel-tdd

affaan-m/ecc

Laravel testing strategies with PHPUnit, Pest, model factories, HTTP tests, Sanctum authentication testing, mocking, and coverage.
2k
240.8k
affaan-m avatar
django-tdd

affaan-m/ecc

Django testing strategies with pytest-django, TDD methodology, factory_boy, mocking, coverage, and testing Django REST Framework APIs.
2k
240.8k
affaan-m avatar
kotlin-testing

affaan-m/ecc

Kotlin testing patterns with Kotest, MockK, coroutine testing, property-based testing, and Kover coverage. Follows TDD methodology with idiomatic Kotlin practices.
2k
240.8k