### Install Sentinel for Laravel with Composer and Artisan

Source: https://github.com/roundly-consulting/sentinel-for-laravel/blob/main/README.md

Run these commands to install the package, publish configuration and migrations, and run migrations. Requires PHP 8.4+, Laravel 12 or 13, and SQLite, PostgreSQL, or MySQL.

```bash
composer require roundly-consulting/sentinel-for-laravel
php artisan sentinel:install   # publishes config + migrations, prints the key lines for .env
php artisan migrate
```

--------------------------------

### Handle tampering: verify, update refusal, and acknowledge

Source: https://github.com/roundly-consulting/sentinel-for-laravel/blob/main/README.md

Verify a tampered model, observe that updates are refused until acknowledged, and acknowledge the tampering with an actor and reason.

```php
Sentinel::for($invoice)->verify();
// VerificationResult { status: Tampered, reason: 'mac', changedAttributes: ['a:amount'], … }

$invoice->update(['note' => 'x']);             // TamperedModelException: refused until acknowledged

Sentinel::for($invoice)->by($admin)->because('INC-88: refund fixed by the DBA')->acknowledge();
```

--------------------------------

### Verify model integrity with isIntact, verifyOrFail, and sentinel.verified middleware

Source: https://github.com/roundly-consulting/sentinel-for-laravel/blob/main/README.md

Check if a model is intact, throw an exception if tampered, or protect routes with the sentinel.verified middleware.

```php
use RoundlyConsulting\Sentinel\Facades\Sentinel;

$invoice->isIntact();                          // true when every seal verifies
Sentinel::for($invoice)->verifyOrFail();       // throws TamperedModelException otherwise

Route::get('/invoices/{invoice}', ShowInvoice::class)->middleware('sentinel.verified');
```

--------------------------------

### Declare a seal on an Eloquent model using HasSeals

Source: https://github.com/roundly-consulting/sentinel-for-laravel/blob/main/README.md

Use the HasSeals trait and implement Sealable to define a seal with specific attributes. Every Eloquent write will seal the row.

```php
use Illuminate\Database\Eloquent\Model;
use RoundlyConsulting\Sentinel\Concerns\HasSeals;
use RoundlyConsulting\Sentinel\Contracts\Sealable;
use RoundlyConsulting\Sentinel\Definition\SealBuilder;

final class Invoice extends Model implements Sealable
{
    use HasSeals;

    public static function defineSeals(SealBuilder $seals): void
    {
        $seals->seal('financial')->attributes('customer_id', 'currency', 'amount', 'status');
    }
}
```