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Merge pull request #17 from lambda-curry/codex/bun-rules-doc-sync
chore: sync AI rules/docs with Bun testing setup
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‎.cursor/rules/ai-rules-generated-00-project-context.mdc‎

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---
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description: Project overview and context for react-router-starter
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globs: **/*
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alwaysApply: true
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---
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# Project Context
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## What This Repo Is
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**react-router-starter** is a monorepo starter for React Router 7 apps with best practices: Storybook, @lambdacurry/forms, Bun test + React Testing Library, and shared AI rules.
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## Structure
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- **apps/todo-app** – Reference app (React Router 7, Vite, Tailwind v4, forms, Storybook, tests).
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- **packages/** – Shared packages (e.g. `@todo-starter/ui`, `@todo-starter/utils`) used by apps.
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- **ai-rules/** – Source-of-truth AI rules (project context, React Router, Storybook, forms, testing, monorepo, UI).
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- **.cursor/rules/** – Generated Cursor rules (do not edit directly).
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- **AGENTS.md / CLAUDE.md / GEMINI.md** – Generated agent rules (do not edit directly).
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## Issue Tracking (Beads)
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Beads is required **only** when running Ralph loops or when a task explicitly comes from Beads. For ad-hoc work, you can skip Beads.
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When Beads is in use, follow `.devagent/plugins/ralph/AGENTS.md` and use the CLI:
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```bash
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bd ready # Find available work
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bd show <id> # View issue details
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bd update <id> --status in_progress # Claim work
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bd update <id> --status closed # Complete work
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bd sync # Sync with git
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```
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## Quality Gates (todo-app)
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From `apps/todo-app/package.json`:
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- **Test:** `bun run test:run` or `bun run test:ci` (Bun test)
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- **Lint:** `npm run lint` (Biome)
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- **Typecheck:** `npm run typecheck` (tsc)
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- **Build:** `npm run build` (react-router build)
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- **Storybook:** `npm run storybook` (dev), `npm run build-storybook` (build)
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Run these from `apps/todo-app` or via workspace root scripts if defined.
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## Conventions
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- **Routing:** File-based routes in `app/routes/`; use loaders/actions and route types.
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- **Forms:** @lambdacurry/forms + remix-hook-form + Zod; see `ai-rules/lambda-curry-forms.md`.
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- **Tests:** Bun test + React Testing Library; use `renderWithRouter` for router-dependent components; see `apps/todo-app/TESTING.md` and `ai-rules/testing-best-practices.md`.
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- **Styling:** Tailwind CSS v4; mobile-first; prefer existing UI components.
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## AI Rules Workflow
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- **Edit source rules** in `ai-rules/`
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- **Generated outputs** in `.generated-ai-rules/` and `.cursor/rules/` are maintained by repository automation
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- **Do not edit generated files directly**; change source rules in `ai-rules/`

.cursorrules/lambda-curry-forms.mdc renamed to .cursor/rules/ai-rules-generated-lambda-curry-forms.mdc

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};
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```
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## Advanced Patterns
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### Conditional Fields
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```typescript
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const watchAccountType = methods.watch('accountType');
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{watchAccountType === 'business' && (
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<TextField name="companyName" label="Company Name" />
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)}
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```
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## Available Form Components
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### TextField Component

‎.cursor/rules/ai-rules-generated-monorepo.mdc‎

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---
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description: Monorepo structure, package boundaries, and workspace conventions
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globs: **/*
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alwaysApply: true
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---
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# Monorepo Rules
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## Package Structure
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- `apps/` - Applications (todo-app)
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- `packages/` - Shared packages (ui, utils)
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- Each package has its own package.json with proper exports
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## Workspace Dependencies
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- Use `workspace:*` for internal package dependencies
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- Keep external dependencies in sync across packages
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- Use peerDependencies for shared libraries like React
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## Import Patterns
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```tsx
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// Import from workspace packages
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import { Button } from '@todo-starter/ui';
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import { cn, type Todo } from '@todo-starter/utils';
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// Import from local files
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import { TodoItem } from '~/components/todo-item';
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import type { Route } from './+types/home';
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```
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## Package Naming
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- Use scoped packages: `@todo-starter/package-name`
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- Keep names descriptive and consistent
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- Use kebab-case for package names
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## Scripts and Tasks
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- Define scripts at both root and package level
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- Use Turbo for orchestrating build tasks
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- Prefer package-specific scripts for development
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## TypeScript Configuration
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- Use Tailwind CSS v4's CSS-first configuration with `@theme` directive
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- Use path mapping for workspace packages
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- Keep tsconfig.json files minimal and focused
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## Best Practices
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- Keep packages focused and single-purpose
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- Avoid circular dependencies between packages
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- Use proper exports in package.json
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- Document package APIs and usage patterns

.cursorrules/react-router.mdc renamed to .cursor/rules/ai-rules-generated-react-router.mdc

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.cursorrules/storybook.mdc renamed to .cursor/rules/ai-rules-generated-storybook.mdc

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Components that use `Link`, `useNavigate`, `useFetcher`, or `useHref` need router context. Use a global decorator in `preview.tsx`:
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```tsx
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import type { Preview } from '@storybook/react';
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import type { ComponentType } from 'react';
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import { createMemoryRouter, RouterProvider } from 'react-router-dom';
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‎.cursor/rules/ai-rules-generated-testing-best-practices.mdc‎

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---
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description: Bun test and React Testing Library patterns for React Router apps
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globs: apps/**/*.test.{ts, tsx}, apps/**/*.spec.{ts, tsx}, apps/**/test/**/*
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alwaysApply: false
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---
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# Testing Best Practices
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## Stack
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- **Runner:** Bun test (`bun:test`) with JSDOM bootstrap in `test/setup.ts` (loaded via `bunfig.toml`)
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- **Component/DOM:** React Testing Library
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- **Router:** `createMemoryRouter` + `RouterProvider` via shared `renderWithRouter` helper
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## Test Layout (todo-app)
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| Pattern | Location | Purpose |
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|---------------|-----------------------------------|--------|
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| Unit | `app/lib/__tests__/*.test.ts` | Pure utilities, helpers |
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| Component | `app/components/__tests__/*.test.tsx` | UI with router/context mocking |
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| Integration | `app/routes/__tests__/*.integration.test.tsx` | Full route + provider flows |
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Shared setup: `test/setup.ts` (jest-dom, RTL cleanup). Shared helpers: `test/test-utils.tsx`.
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## Router-Dependent Components
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Use `renderWithRouter` for any component that uses `Link`, `useNavigate`, `useFetcher`, or `useHref`:
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```tsx
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import { renderWithRouter } from '../../../test/test-utils';
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it('renders and submits', () => {
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renderWithRouter(<MyComponent />);
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});
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it('renders at /contact', () => {
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renderWithRouter(<Page />, { initialEntries: ['/contact'] });
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});
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```
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For full route trees (loaders, nested layouts), use `createTestRouter` or pass `routes` into `renderWithRouter`.
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## Integration Tests
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Wrap route components with the same providers as the app (e.g. TodoProvider), then assert user flows:
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```tsx
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import { renderWithRouter } from '../../test/test-utils';
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import { TodoProvider } from '../../lib/todo-context';
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import Home from '../home';
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renderWithRouter(
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<TodoProvider>
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<Home />
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</TodoProvider>
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);
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// fire events, assert DOM/state
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```
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## Bun Config (reference)
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- **preload:** `test/setup.ts` via `bunfig.toml`
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- **jsdom:** initialized in `test/setup.ts` (globals + `@testing-library/jest-dom`)
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- **testTimeout:** Bun default is `5000`; adjust with `bun test --timeout <ms>` when needed
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## Commands
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- `bun run test` – run tests
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- `bun run test:watch` – watch mode
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- `bun run test:run` / `bun run test:ci` – single run (CI)
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## Best Practices
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- Prefer `getByRole`, `getByLabelText`, `getByPlaceholderText` over brittle selectors
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- Use `jest.fn()` from `bun:test` for callbacks; assert calls and args
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- Hoist repeated regex/selectors to describe scope to satisfy lint rules
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- Keep tests focused; use multiple `it` blocks instead of one large test
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- For forms: test validation, submit behavior, and error display (see lambda-curry-forms rules for FormError)

‎.cursor/rules/ai-rules-generated-ui-components.mdc‎

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---
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description: UI component conventions and shadcn/ui patterns
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globs: packages/ui/**/*.tsx, packages/ui/**/*.ts, apps/**/app/**/*.tsx
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alwaysApply: true
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---
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# UI Component Rules
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## Component Structure
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- Use forwardRef for components that need ref forwarding
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- Implement proper TypeScript interfaces
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- Use class-variance-authority for variant-based styling
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## shadcn/ui Patterns
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```tsx
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// Component example
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import * as React from 'react';
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import { cva, type VariantProps } from 'class-variance-authority';
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import { cn } from '@todo-starter/utils';
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import { Slot } from '@radix-ui/react-slot';
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const buttonVariants = cva(
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'base-classes',
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{
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variants: {
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variant: {
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default: 'default-classes',
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destructive: 'destructive-classes'
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},
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size: {
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default: 'default-size',
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sm: 'small-size'
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}
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},
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defaultVariants: {
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variant: 'default',
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size: 'default'
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}
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}
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);
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export interface ButtonProps
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extends React.ButtonHTMLAttributes<HTMLButtonElement>,
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VariantProps<typeof buttonVariants> {
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asChild?: boolean;
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}
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const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
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({ className, variant, size, asChild = false, ...props }, ref) => {
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const Comp = asChild ? Slot : 'button';
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return (
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<Comp
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className={cn(buttonVariants({ variant, size, className }))}
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ref={ref}
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{...props}
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/>
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);
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}
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);
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Button.displayName = 'Button';
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```
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## Styling Guidelines
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- Use Tailwind CSS classes for styling
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- Leverage CSS variables for theming
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- Use cn() utility for conditional classes
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- Follow shadcn/ui color and spacing conventions
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## Accessibility
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- Include proper ARIA attributes
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- Ensure keyboard navigation works
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- Use semantic HTML elements
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- Test with screen readers
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## Component Organization
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- Keep components in `packages/ui/src/components/ui/`
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- Export all components from main index file
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- Group related components together
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- Use consistent naming conventions
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## Best Practices
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- Prefer composition over complex props
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- Keep components focused and reusable
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- Document component APIs with TypeScript
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- Test components in isolation

‎.cursorrules/00-project-context.mdc‎

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