app/Http/Requests/Screen/ScreenRequest.php

<?php

namespace App\Http\Requests\Screen;

use Illuminate\Foundation\Http\FormRequest;

class ScreenRequest extends FormRequest
{
    public function authorize(): bool
    {
        return true;
    }

    public function rules(): array
    {
        return [
            'disease_name'   => ['required', 'string', 'max:255'],
            'known_drugs'    => ['sometimes', 'array'],
            'known_drugs.*'  => ['string'],
            'min_score'      => ['sometimes', 'numeric', 'min:0', 'max:1'],
            'top_n_targets'  => ['sometimes', 'integer', 'min:1', 'max:100'],
        ];
    }
}