Frontend architecture
Battle-tested patterns that keep your UI fast, consistent, and maintainable.
Your frontend has opinions
A codebase without patterns is a codebase that drifts. Feature one fetches data one way. Feature five does it differently. By feature ten, nobody remembers which approach is "right" and every new page becomes a guessing game.
The framework ships with a pattern library that prevents this. Every agent follows the same documented approach for data fetching, caching, forms, loading states, responsive design, and component structure. Your tenth feature works the same way as your first.
What's built in
Data fetching that doesn't waterfall. The system fetches data on the server before the page renders. Your users see content immediately, not a spinner that hangs for two seconds while API calls chain together. The pattern for this is documented, and every agent follows it automatically.
Smart caching. Data that doesn't change often gets cached so repeat visits feel instant. Data that changes frequently stays fresh. The caching strategy is per-page and per-component, not a global setting you have to think about.
Forms that validate properly. Type-safe from the database through the API to the form fields. Validation rules defined once, enforced everywhere. Error messages appear where users expect them.
Loading states that look intentional. Skeleton screens for pages loading data. Progress indicators for long operations. Optimistic updates for actions where waiting would feel sluggish (toggling, liking, reordering). The pattern library documents when to use which approach.
URL-based state for anything shareable. Filters, search terms, active tabs, pagination. If a user should be able to bookmark it or share the link, the state lives in the URL. This is handled by a lightweight state manager that keeps URLs clean and readable.
The patterns agents use
The library covers common UI challenges with concrete, copy-from-here solutions:
- Data tables with sorting, filtering, and pagination
- Kanban boards with drag-and-drop between columns
- Reorderable lists with drag handles
- Multi-step forms with progress tracking
- Virtual scrolling for lists with thousands of items
- Optimistic updates with automatic rollback on failure
Each pattern includes the data flow, the component structure, and how it connects to the backend. When the agents build a feature that needs a data table, they follow the data table pattern. You don't end up with three different table implementations across your app.
Responsive by default
Every page pattern includes breakpoints for phone, tablet, and desktop. The agents test at 375px, 768px, and 1280px. Mobile isn't an afterthought. It's part of the build checklist.