diff --git a/Sim.cs b/Sim.cs
index efa1cfc..2d9466f 100644
--- a/Sim.cs
+++ b/Sim.cs
@@ -1,10 +1,25 @@
 namespace SimsPersonalityGenerator;
 
-static class Sim
+/// <summary>
+/// Represents the Sim personality generator with methods to assign traits and display personality.
+/// </summary>
+internal static class Sim
 {
+    /// <summary>
+    /// The target value for prioritized traits to aim for, typically 8.
+    /// </summary>
     private const int Target = 8;
-    private static readonly Random Random = new Random();
-    
+
+    /// <summary>
+    /// A random number generator instance for generating random values.
+    /// </summary>
+    private static readonly Random Rand = new Random();
+
+    /// <summary>
+    /// Assigns high values to the specified prioritized traits and random values to other traits.
+    /// </summary>
+    /// <param name="traits">A dictionary of traits with their initial values.</param>
+    /// <param name="prioritizedTraits">A set of traits that the user wants to prioritize.</param>
     public static void AssignPrioritizedTraits(Dictionary<string, int> traits, HashSet<string> prioritizedTraits)
     {
         Console.WriteLine("Assigning high values to prioritized traits...");
@@ -13,7 +28,7 @@ static class Sim
         // Assign high values to prioritized traits (8, 9, or 10)
         foreach (var trait in prioritizedTraits)
         {
-            var value = Math.Min(Target + Random.Next(3), 10);
+            var value = Math.Min(Target + Rand.Next(3), 10);
             remainingPoints -= value;
             traits[trait] = value;
             Console.WriteLine($"Setting {trait} to {value}.");
@@ -24,7 +39,7 @@ static class Sim
         foreach (var trait in nonPrioritizedTraits)
         {
             var maxPossibleValue = Math.Min(remainingPoints, 10);
-            var value = Random.Next(maxPossibleValue + 1);
+            var value = Rand.Next(maxPossibleValue + 1);
             remainingPoints -= value;
             traits[trait] = value;
             Console.WriteLine($"Setting {trait} to {value}.");
@@ -33,6 +48,10 @@ static class Sim
         Console.WriteLine("Adjusted remaining traits to maintain balance.");
     }
 
+    /// <summary>
+    /// Assigns random values to all traits.
+    /// </summary>
+    /// <param name="traits">A dictionary of traits with their initial values.</param>
     public static void AssignRandomTraits(Dictionary<string, int> traits)
     {
         Console.WriteLine("Generating random personality...");
@@ -41,7 +60,7 @@ static class Sim
         foreach (var trait in traits.Keys)
         {
             var maxPossibleValue = Math.Min(remainingPoints, 10);
-            var value = Random.Next(maxPossibleValue + 1);
+            var value = Rand.Next(maxPossibleValue + 1);
             remainingPoints -= value;
             traits[trait] = value;
             Console.WriteLine($"Setting {trait} to {value}.");
@@ -50,6 +69,10 @@ static class Sim
         Console.WriteLine("Random personality generation complete.");
     }
 
+    /// <summary>
+    /// Displays the generated personality traits.
+    /// </summary>
+    /// <param name="traits">A dictionary of traits with their assigned values.</param>
     public static void DisplayPersonality(Dictionary<string, int> traits)
     {
         Console.WriteLine("\nGenerated Sim Personality:");