Skill UI

Guides you through building Airflow operators for data pipelines with automated best practices, production-ready code/config generation, and validation for ETL, transformation, orchestration, and streaming scenarios.

A comprehensive guide for building production-quality Android applications using Jetpack Compose. This skill covers modern architectural patterns (MVVM/MVI), robust state management with StateFlow, optimized UI rendering, type-safe navigation setup, and performance best practices (e.g., recomposition control). Use this skill when developing complex, modern Android user interfaces.

A comprehensive guide for building production-quality Android applications using Jetpack Compose. This skill covers modern architectural patterns (MVVM/MVI), robust state management with StateFlow, optimized UI rendering, type-safe navigation setup, and performance best practices (e.g., recomposition control). Use this skill when developing complex, modern Android user interfaces.

A comprehensive guide detailing best practices for optimizing Angular applications. It covers critical topics like change detection strategies (OnPush, Signals), managing asynchronous data flows (avoiding waterfalls), optimizing bundle size via lazy loading and tree shaking, and improving rendering efficiency with modern features like @defer and trackBy. Use this when building, reviewing, or refactoring complex Angular components for peak performance.

This guide provides a comprehensive roadmap for migrating legacy AngularJS (1.x) applications to modern Angular (2+). It covers essential techniques like component and directive conversion, dependency injection updates, and routing migration. Learn advanced strategies for building hybrid apps and executing safe, incremental upgrades for large-scale enterprise applications.

This comprehensive guide covers modern state management patterns in Angular, including local state using Signals, complex global state handling with NgRx, and remote data synchronization with NgRx Query. It helps developers understand when to use Signals, NgRx, or other solutions for building robust, scalable, and maintainable applications.

A comprehensive guide to modern API design principles and architectural decision-making. Learn how to select the right pattern (REST, GraphQL, tRPC), implement robust versioning strategies, handle pagination, define standardized response formats, and incorporate essential security measures like authentication and rate limiting. Essential for building scalable and reliable backend services.

A comprehensive guide for developers on building secure and robust APIs across REST, GraphQL, and WebSocket protocols. It covers essential security patterns including robust authentication (JWT, OAuth 2.0), granular authorization (RBAC), input validation to prevent injection attacks (SQLi, XSS), rate limiting, and best practices for data encryption and secure headers. Essential for developers preparing for security audits.

This skill implements a comprehensive, multi-step workflow for lead generation using Apollo.io. It allows users to perform free searches for contacts or organizations based on detailed criteria (e.g., domain, title, industry). Crucially, it integrates paid enrichment steps to verify and retrieve critical contact details like emails and phone numbers, building a complete, actionable prospecting pipeline.

This comprehensive guide sets up a robust and isolated local development environment for Apollo.io integrations. It covers essential steps including configuring sandbox API keys, implementing a Mock Service Worker (MSW) for reliable offline API mocking, setting up detailed request logging, and configuring Vitest for efficient local testing. Ideal for developers building and debugging complex, API-dependent features.

A comprehensive pattern for configuring API clients across multiple operational environments (development, staging, production). This skill uses TypeScript schemas and factory patterns to ensure environment isolation, manage distinct credentials, enforce rate limiting, and implement feature gating. It is essential for building robust, scalable SaaS applications that interact with external services like Apollo.io.

This skill provides a comprehensive guide and implementation for handling API rate limiting and network retries (429 errors). It utilizes advanced patterns like the Sliding Window Limiter for per-endpoint rate control, exponential backoff with jitter, and request queuing with concurrency control. Ideal for building robust, resilient applications that interact with rate-limited external APIs like Apollo.io.