Frontend and Design

Configure vector stores for Retrieval-Augmented Generation applications with LangChain4J.

This skill provides official patterns for integrating Mapbox GL JS into web applications using React, Vue, Svelte, Angular, and vanilla JavaScript. These patterns are based on Mapbox's create-web-app scaffolding tool and represent production-ready best practices.

Expert guidance for optimizing Next.js applications with focus on Core Web Vitals, modern patterns, and best practices.

Pulumi ESC is a centralized service for managing environments, secrets, and configuration across cloud infrastructure and applications.

This skill provides patterns for unit testing @ConfigurationProperties bindings, environment-specific configurations, and property validation using JUnit 5. It covers testing property name mapping, type conversions, validation constraints, nested structures, and profile-specific configurations without full Spring...

This skill provides patterns for unit testing MapStruct mappers and custom converter classes. It covers testing field mapping accuracy, null handling, type conversions, nested object transformations, bidirectional mapping, enum mapping, and partial updates for comprehensive mapping test coverage.

This skill provides patterns for writing efficient parameterized unit tests using JUnit 5's @ParameterizedTest. It covers @ValueSource, @CsvSource, @MethodSource, @EnumSource, @ArgumentsSource, and custom display names to run the same test logic with multiple input values, reducing test duplication and improving...

Deployment principles and decision-making for safe production releases. Learn to THINK, not memorize scripts.

Guide product managers through evaluating whether to build a feature based on financial impact analysis. Use this to make data-driven prioritization decisions by assessing revenue connection (direct or indirect), cost structure (dev + COGS + OpEx), ROI calculation, and strategic value—then deliver actionable...

Create enterprise-grade Jenkins pipelines using declarative and scripted approaches to automate building, testing, and deploying with advanced control flow.

LangChain4J testing requires specialized strategies due to the non-deterministic nature of LLM responses and the complexity of AI workflows. This skill provides comprehensive patterns for unit testing with mocks, integration testing with Testcontainers, and end-to-end testing for RAG systems, AI Services, and tool...

Orchestration through Claude Code's built-in Agent Tool

This skill provides patterns for unit testing @ExceptionHandler methods and @ControllerAdvice classes using MockMvc. It covers testing exception-to-error-response transformations, HTTP status codes, error message formatting, validation error handling, and custom permission evaluators without full integration test...

Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. This skill covers patterns for working with DynamoDB using AWS SDK for Java 2.x, including the Enhanced Client for type-safe operations, batch operations, transactions, and Spring Boot...

B站视频内容分析工具。提供视频URL后，自动下载视频、拆解成帧图片，然后使用AI分析内容，最终生成 高质量的专题文档或实操教程 。

This skill provides guidance for building declarative AI Services with LangChain4j using interface-based patterns, annotations for system and user messages, memory management, tools integration, and advanced AI application patterns that abstract away low-level LLM interactions.

Configure AWS RDS databases (Aurora, MySQL, PostgreSQL) with Spring Boot applications for production-ready connectivity. This skill provides patterns for datasource configuration, connection pooling with HikariCP, SSL connections, environment-specific configurations, and integration with AWS Secrets Manager for secure...

Source details, install context, and public review data are available on the full page.

Diagnose overall SaaS business health by analyzing growth, retention, unit economics, and capital efficiency metrics together. Use this to identify problems early, prioritize actions by urgency, and deliver a comprehensive health scorecard for board meetings, quarterly reviews, or fundraising preparation.

Source details, install context, and public review data are available on the full page.

Create a Geoffrey Moore-style positioning statement that clearly articulates who your product serves, what need it addresses, how it's categorized, what benefit it delivers, and how it differs from alternatives. Use this when you need to align stakeholders on product strategy, guide messaging, or test if your value...

Source details, install context, and public review data are available on the full page.

Comprehensive guide for creating and managing skills in Claude Code with auto-activation system, following Anthropic's official best practices including the 500-line rule and progressive disclosure pattern.

This skill provides patterns for unit testing Spring caching annotations (@Cacheable, @CacheEvict, @CachePut) without full Spring context. It covers testing cache behavior, hits/misses, invalidation strategies, cache key generation, and conditional caching using in-memory cache managers.