What problem does it solve? Reading unfamiliar code or a large change often leaves you with facts but no real understanding. This Skill investigates a subsystem or change and delivers one clear, plain-language explanation of what it is, how it works, and why it was designed that way. ## Core Features & Use Cases - Orchestrated investigation: Runs the how and why skills in parallel to gather how the code works and the reasoning behind it, then weaves the findings into one account. - Audience-aware depth: Picks the few things you should walk away understanding based on why you are asking, and goes deeper only when you ask. - Progressive visuals: Builds understanding with a series of small diagrams that each add one part, using mermaid for flows and generated whiteboard-style images for spatial ideas. - Use Case: You are about to modify a virtualization module you have never touched. Ask for an explanation and get a plain account of its rendering and loading halves, how eviction works as items scroll, and the design reasons behind it. ## Quick Start Ask the assistant to teach you how a specific subsystem or recent change works and why it is built that way.