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165 changes: 165 additions & 0 deletions .claude/skills/livewire-development/SKILL.md
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---
name: livewire-development
description: "Develops reactive Livewire 4 components. Activates when creating, updating, or modifying Livewire components; working with wire:model, wire:click, wire:loading, or any wire: directives; adding real-time updates, loading states, or reactivity; debugging component behavior; writing Livewire tests; or when the user mentions Livewire, component, counter, or reactive UI."
license: MIT
metadata:
author: laravel
---

# Livewire Development

## When to Apply

Activate this skill when:

- Creating or modifying Livewire components
- Using wire: directives (model, click, loading, sort, intersect)
- Implementing islands or async actions
- Writing Livewire component tests

## Documentation

Use `search-docs` for detailed Livewire 4 patterns and documentation.

## Basic Usage

### Creating Components

```bash

# Single-file component (default in v4)

php artisan make:livewire create-post

# Multi-file component

php artisan make:livewire create-post --mfc

# Class-based component (v3 style)

php artisan make:livewire create-post --class

# With namespace

php artisan make:livewire Posts/CreatePost
```

### Converting Between Formats

Use `php artisan livewire:convert create-post` to convert between single-file, multi-file, and class-based formats.

### Choosing a Component Format

Before creating a component, check `config/livewire.php` for directory overrides, which change where files are stored. Then, look at existing files in those directories (defaulting to `app/Livewire/` and `resources/views/livewire/`) to match the established convention.

### Component Format Reference

| Format | Flag | Class Path | View Path |
|--------|------|------------|-----------|
| Single-file (SFC) | default | — | `resources/views/livewire/create-post.blade.php` (PHP + Blade in one file) |
| Multi-file (MFC) | `--mfc` | `app/Livewire/CreatePost.php` | `resources/views/livewire/create-post.blade.php` |
| Class-based | `--class` | `app/Livewire/CreatePost.php` | `resources/views/livewire/create-post.blade.php` |
| View-based | ⚡ prefix | — | `resources/views/livewire/create-post.blade.php` (Blade-only with functional state) |

Namespaced components map to subdirectories: `make:livewire Posts/CreatePost` creates files at `app/Livewire/Posts/CreatePost.php` and `resources/views/livewire/posts/create-post.blade.php`.

### Single-File Component Example

<!-- Single-File Component Example -->
```php
<?php
use Livewire\Component;

new class extends Component {
public int $count = 0;

public function increment(): void
{
$this->count++;
}
}
?>

<div>
<button wire:click="increment">Count: @{{ $count }}</button>
</div>
```

## Livewire 4 Specifics

### Key Changes From Livewire 3

These things changed in Livewire 4, but may not have been updated in this application. Verify this application's setup to ensure you follow existing conventions.

- Use `Route::livewire()` for full-page components (e.g., `Route::livewire('/posts/create', CreatePost::class)`); config keys renamed: `layout` → `component_layout`, `lazy_placeholder` → `component_placeholder`.
- `wire:model` now ignores child events by default (use `wire:model.deep` for old behavior); `wire:scroll` renamed to `wire:navigate:scroll`.
- Component tags must be properly closed; `wire:transition` now uses View Transitions API (modifiers removed).
- JavaScript: `$wire.$js('name', fn)` → `$wire.$js.name = fn`; `commit`/`request` hooks → `interceptMessage()`/`interceptRequest()`.

### New Features

- Component formats: single-file (SFC), multi-file (MFC), view-based components.
- Islands (`@island`) for isolated updates; async actions (`wire:click.async`, `#[Async]`) for parallel execution.
- Deferred/bundled loading: `defer`, `lazy.bundle` for optimized component loading.

| Feature | Usage | Purpose |
|---------|-------|---------|
| Islands | `@island(name: 'stats')` | Isolated update regions |
| Async | `wire:click.async` or `#[Async]` | Non-blocking actions |
| Deferred | `defer` attribute | Load after page render |
| Bundled | `lazy.bundle` | Load multiple together |

### New Directives

- `wire:sort`, `wire:intersect`, `wire:ref`, `.renderless`, `.preserve-scroll` are available for use.
- `data-loading` attribute automatically added to elements triggering network requests.

| Directive | Purpose |
|-----------|---------|
| `wire:sort` | Drag-and-drop sorting |
| `wire:intersect` | Viewport intersection detection |
| `wire:ref` | Element references for JS |
| `.renderless` | Component without rendering |
| `.preserve-scroll` | Preserve scroll position |

## Best Practices

- Always use `wire:key` in loops
- Use `wire:loading` for loading states
- Use `wire:model.live` for instant updates (default is debounced)
- Validate and authorize in actions (treat like HTTP requests)

## Configuration

- `smart_wire_keys` defaults to `true`; new configs: `component_locations`, `component_namespaces`, `make_command`, `csp_safe`.

## Alpine & JavaScript

- `wire:transition` uses browser View Transitions API; `$errors` and `$intercept` magic properties available.
- Non-blocking `wire:poll` and parallel `wire:model.live` updates improve performance.

For interceptors and hooks, see [reference/javascript-hooks.md](reference/javascript-hooks.md).

## Testing

<!-- Testing Example -->
```php
Livewire::test(Counter::class)
->assertSet('count', 0)
->call('increment')
->assertSet('count', 1);
```

## Verification

1. Browser console: Check for JS errors
2. Network tab: Verify Livewire requests return 200
3. Ensure `wire:key` on all `@foreach` loops

## Common Pitfalls

- Missing `wire:key` in loops → unexpected re-rendering
- Expecting `wire:model` real-time → use `wire:model.live`
- Unclosed component tags → syntax errors in v4
- Using deprecated config keys or JS hooks
- Including Alpine.js separately (already bundled in Livewire 4)
39 changes: 39 additions & 0 deletions .claude/skills/livewire-development/reference/javascript-hooks.md
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# Livewire 4 JavaScript Integration

## Interceptor System (v4)

### Intercept Messages

```js
Livewire.interceptMessage(({ component, message, onFinish, onSuccess, onError }) => {
onFinish(() => { /* After response, before processing */ });
onSuccess(({ payload }) => { /* payload.snapshot, payload.effects */ });
onError(() => { /* Server errors */ });
});
```

### Intercept Requests

```js
Livewire.interceptRequest(({ request, onResponse, onSuccess, onError, onFailure }) => {
onResponse(({ response }) => { /* When received */ });
onSuccess(({ response, responseJson }) => { /* Success */ });
onError(({ response, responseBody, preventDefault }) => { /* 4xx/5xx */ });
onFailure(({ error }) => { /* Network failures */ });
});
```

### Component-Scoped Interceptors

```blade
<script>
this.$intercept('save', ({ component, onSuccess }) => {
onSuccess(() => console.log('Saved!'));
});
</script>
```

## Magic Properties

- `$errors` - Access validation errors from JavaScript
- `$intercept` - Component-scoped interceptors
167 changes: 167 additions & 0 deletions .claude/skills/pest-testing/SKILL.md
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---
name: pest-testing
description: "Tests applications using the Pest 4 PHP framework. Activates when writing tests, creating unit or feature tests, adding assertions, testing Livewire components, browser testing, debugging test failures, working with datasets or mocking; or when the user mentions test, spec, TDD, expects, assertion, coverage, or needs to verify functionality works."
license: MIT
metadata:
author: laravel
---

# Pest Testing 4

## When to Apply

Activate this skill when:

- Creating new tests (unit, feature, or browser)
- Modifying existing tests
- Debugging test failures
- Working with browser testing or smoke testing
- Writing architecture tests or visual regression tests

## Documentation

Use `search-docs` for detailed Pest 4 patterns and documentation.

## Basic Usage

### Creating Tests

All tests must be written using Pest. Use `php artisan make:test --pest {name}`.

### Test Organization

- Unit/Feature tests: `tests/Feature` and `tests/Unit` directories.
- Browser tests: `tests/Browser/` directory.
- Do NOT remove tests without approval - these are core application code.

### Basic Test Structure

<!-- Basic Pest Test Example -->
```php
it('is true', function () {
expect(true)->toBeTrue();
});
```

### Running Tests

- Run minimal tests with filter before finalizing: `php artisan test --compact --filter=testName`.
- Run all tests: `php artisan test --compact`.
- Run file: `php artisan test --compact tests/Feature/ExampleTest.php`.

## Assertions

Use specific assertions (`assertSuccessful()`, `assertNotFound()`) instead of `assertStatus()`:

<!-- Pest Response Assertion -->
```php
it('returns all', function () {
$this->postJson('/api/docs', [])->assertSuccessful();
});
```

| Use | Instead of |
|-----|------------|
| `assertSuccessful()` | `assertStatus(200)` |
| `assertNotFound()` | `assertStatus(404)` |
| `assertForbidden()` | `assertStatus(403)` |

## Mocking

Import mock function before use: `use function Pest\Laravel\mock;`

## Datasets

Use datasets for repetitive tests (validation rules, etc.):

<!-- Pest Dataset Example -->
```php
it('has emails', function (string $email) {
expect($email)->not->toBeEmpty();
})->with([
'james' => 'james@laravel.com',
'taylor' => 'taylor@laravel.com',
]);
```

## Pest 4 Features

| Feature | Purpose |
|---------|---------|
| Browser Testing | Full integration tests in real browsers |
| Smoke Testing | Validate multiple pages quickly |
| Visual Regression | Compare screenshots for visual changes |
| Test Sharding | Parallel CI runs |
| Architecture Testing | Enforce code conventions |

### Browser Test Example

Browser tests run in real browsers for full integration testing:

- Browser tests live in `tests/Browser/`.
- Use Laravel features like `Event::fake()`, `assertAuthenticated()`, and model factories.
- Use `RefreshDatabase` for clean state per test.
- Interact with page: click, type, scroll, select, submit, drag-and-drop, touch gestures.
- Test on multiple browsers (Chrome, Firefox, Safari) if requested.
- Test on different devices/viewports (iPhone 14 Pro, tablets) if requested.
- Switch color schemes (light/dark mode) when appropriate.
- Take screenshots or pause tests for debugging.

<!-- Pest Browser Test Example -->
```php
it('may reset the password', function () {
Notification::fake();

$this->actingAs(User::factory()->create());

$page = visit('/sign-in');

$page->assertSee('Sign In')
->assertNoJavaScriptErrors()
->click('Forgot Password?')
->fill('email', 'nuno@laravel.com')
->click('Send Reset Link')
->assertSee('We have emailed your password reset link!');

Notification::assertSent(ResetPassword::class);
});
```

### Smoke Testing

Quickly validate multiple pages have no JavaScript errors:

<!-- Pest Smoke Testing Example -->
```php
$pages = visit(['/', '/about', '/contact']);

$pages->assertNoJavaScriptErrors()->assertNoConsoleLogs();
```

### Visual Regression Testing

Capture and compare screenshots to detect visual changes.

### Test Sharding

Split tests across parallel processes for faster CI runs.

### Architecture Testing

Pest 4 includes architecture testing (from Pest 3):

<!-- Architecture Test Example -->
```php
arch('controllers')
->expect('App\Http\Controllers')
->toExtendNothing()
->toHaveSuffix('Controller');
```

## Common Pitfalls

- Not importing `use function Pest\Laravel\mock;` before using mock
- Using `assertStatus(200)` instead of `assertSuccessful()`
- Forgetting datasets for repetitive validation tests
- Deleting tests without approval
- Forgetting `assertNoJavaScriptErrors()` in browser tests
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