diff --git a/Flow.Launcher/Storage/LastOpenedHistoryResult.cs b/Flow.Launcher/Storage/LastOpenedHistoryResult.cs
index 7d49df44b..90d47a4d7 100644
--- a/Flow.Launcher/Storage/LastOpenedHistoryResult.cs
+++ b/Flow.Launcher/Storage/LastOpenedHistoryResult.cs
@@ -5,17 +5,37 @@ using Flow.Launcher.Plugin;
 
 namespace Flow.Launcher.Storage;
 
+/// <summary>
+/// A serializable result used to record the last opened history for reopening results.
+/// Inherits common result fields from <see cref="Result"/> and adds the original query and execution time.
+/// </summary>
 public class LastOpenedHistoryResult : Result
 {
+    /// <summary>
+    /// The query string from Query.TrimmedQuery property, it is stored as a string instead of the entire Query class <see cref="Result"/>. 
+    /// This is used so results can be reopened or re-run using the serialized query string.
+    /// </summary>
     public string Query { get; set; } = string.Empty;
     
+    /// <summary>
+    /// The UTC date and time when this result was executed/opened.
+    /// </summary>
     public DateTime ExecutedDateTime { get; set; }
 
+    /// <summary>
+    /// Initializes a new instance of <see cref="LastOpenedHistoryResult"/>.
+    /// Sets <see cref="OriginQuery"/> using the current <see cref="Query"/> value, because OriginQuery is not serialized.
+    /// </summary>
     public LastOpenedHistoryResult()
     {
         this.OriginQuery = new Query { TrimmedQuery = Query };
     }
 
+    /// <summary>
+    /// Creates a <see cref="LastOpenedHistoryResult"/> from an existing <see cref="Result"/>.
+    /// Copies required fields and sets up default reopening actions.
+    /// </summary>
+    /// <param name="result">The original result to create history from.</param>
     public LastOpenedHistoryResult(Result result)
     {
         Title = result.Title;
@@ -39,6 +59,10 @@ public class LastOpenedHistoryResult : Result
         AsyncAction = null;
     }
 
+    /// <summary>
+    /// Creates a deep copy of <see cref="LastOpenedHistoryResult"/>.
+    /// </summary>
+    /// <returns>A new <see cref="LastOpenedHistoryResult"/> containing the same required data.</returns>
     public LastOpenedHistoryResult Copy()
     {
         
@@ -59,6 +83,12 @@ public class LastOpenedHistoryResult : Result
         };
     }
 
+    /// <summary>
+    /// Determines whether the specified <see cref="Result"/> is equivalent to this history result.
+    /// Comparison uses <see cref="Result.RecordKey"/> when available; otherwise falls back to title/subtitle/plugin id and query.
+    /// </summary>
+    /// <param name="r">The result to compare to.</param>
+    /// <returns><c>true</c> if the results are considered equal; otherwise <c>false</c>.</returns>
     public bool Equals(Result r)
     {
         if (string.IsNullOrEmpty(RecordKey) || string.IsNullOrEmpty(r.RecordKey))