Project UI design system — read this before building any page or component. Defines visual style, color tokens, typography, and constraints.
Design tokens, Tailwind classes, card patterns, spacing, colors, radius, typography, gamification patterns (Duolingo). Load when working on UI, components, styling.
Phân tích và refactor codebase. Load khi cần review code structure, tìm vấn đề thiết kế, tách component, dọn dead code.
Tạo, cập nhật, hoặc implement RFC cho frontend-v2. Use when user says 'tạo rfc', 'viết rfc', 'implement rfc', 'update rfc', 'rfc status', or when a cross-cutting UI/UX change needs formal spec before coding.
TanStack Query patterns, data fetching, cache invalidation, route loaders. Load when working with server state, queries, mutations.
TypeScript patterns, type conventions, naming, code style. Load when writing complex types, reviewing code style, or refactoring.
UI component rules: type safety, props, styling, tokens, icons, context providers. Load when creating or styling components.
Git commit message conventions (ENGLISH), branch rules, push workflow. MANDATORY to read before commit/push. Commit message must list ALL changes in body. DO NOT commit handoff files.