module-project-validator/Editor/Validators/GameObject/GameObjectValidatorMissingComponents.cs

using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

namespace Module.ProjectValidator.Editor
{
    internal sealed class GameObjectValidatorMissingComponents : IGameObjectValidator
    {
        public void Validate(GameObject gameObject, List<ValidatorResult> results)
        {
            var count = GameObjectUtility.GetMonoBehavioursWithMissingScriptCount(gameObject);
            
            if (count != 0)
                results.Add(ValidatorResult.Create(EValidatorSeverity.Error, $"GameObject is missing {count} component(s)"));
        }
    }
}