Skill UI

A comprehensive knowledge base covering the theoretical fundamentals and advanced algorithms of Deep Reinforcement Learning (Deep RL). It details core concepts like Bellman equations, policy gradients, and the trade-offs between policy optimization and Q-learning. The guide analyzes leading algorithms such as PPO, SAC, TRPO, and DDPG, and provides rigorous best practices for debugging and running scientifically sound RL experiments.

This skill covers the core concepts of context engineering for language models, including system prompts, tool definitions, retrieved documents, message history, and tool outputs. It explains attention mechanisms, context windows, and strategies like progressive disclosure to optimize token usage and agent performance.

Strategy for optimizing content to be cited by AI search engines like ChatGPT, Claude, and Perplexity. Covers RAG factors, content checklists, entity building, and measurement.

Learn and apply 33+ essential JavaScript concepts, covering fundamentals, tricky behavior, debugging, code review, and language quirks for developers.

Longbridge offers a comprehensive integration for accessing real-time market data, charts, and fundamentals across HK, US, A-share, and SG markets. It supports portfolio analysis, options trading, and sector screening. The tool is trilingual (Simplified Chinese, Traditional Chinese, English) and works via CLI or MCP, ensuring secure read-only access to account information and market insights.

Retrieve comprehensive financial data including income statements, balance sheets, and cash flows for HK, US, A-share, and Singapore stocks via Longbridge. Supports valuation multiples (PE/PB/PS), dividend history, business segment breakdown, and DCF models. Enables cross-stock comparison, industry ranking, and value investing screens for professional investment analysis.

Master the discipline of building Internal Developer Platforms (IDPs) to enable self-service capabilities for engineering teams. Learn to configure Backstage developer portals and use Crossplane for declarative infrastructure provisioning on Kubernetes. Includes setup, Docker builds, and AWS resource composition.

This skill covers core SEO principles like E-E-A-T, Core Web Vitals, and technical foundations. It explains how search engines evaluate content quality, page experience, and trustworthiness. It guides users on creating sustainable search visibility through high-quality content, proper technical setup, and ethical AI usage, rather than relying on shortcuts.

Covers Three.js animation techniques including keyframe, skeletal, morph targets, and animation mixing. Use for animating objects, playing GLTF clips, procedural motion, and blending animations in 3D scenes.

This skill covers the core setup of Three.js scenes, including cameras, renderers, and object hierarchies. It is designed for initializing 3D environments, configuring rendering pipelines, and managing basic transforms. Use this for foundational work before advancing to shaders or post-processing effects.