Skill UI

Generates Vitest tests in JavaScript/TypeScript with Vite-native speed. Covers Jest-compatible APIs, vi.mock mocking, spies, fake timers, snapshots, React component tests, in-source testing, and vitest.config setup.

This tool converts YouTube talks into local study notes featuring slide snapshots, transcripts, and editable annotations. It builds a personal library where each video becomes a markdown file with an interactive viewer. No database or cloud service is required, ensuring full ownership of your data. Ideal for researchers and students creating deep-dive notes from video content.