frontend/CLAUDE.md

thumbnail-preview-tool Development Guidelines

Auto-generated from all feature plans. Last updated: 2026-01-29

Active Technologies

• TypeScript 5.9.x (frontend + backend) + React 19.x, Tailwind CSS 4.x, shadcn/ui, Zustand, Playwright MCP (002-youtube-design-preview)

• Browser localStorage (preview persistence), file system (reference screenshots) (002-youtube-design-preview)

• TypeScript 5.x (frontend + backend) (001-google-oauth-auth)

Project Structure

src/
tests/

Commands

npm test && npm run lint

Code Style

TypeScript 5.x (frontend + backend): Follow standard conventions

Recent Changes

• 002-youtube-design-preview: Added TypeScript 5.9.x (frontend + backend) + React 19.x, Tailwind CSS 4.x, shadcn/ui, Zustand, Playwright MCP

• 001-google-oauth-auth: Added TypeScript 5.x (frontend + backend)