diff --git a/app/MindWork AI Studio/Assistants/DocumentAnalysis/DocumentAnalysisAssistant.razor.cs b/app/MindWork AI Studio/Assistants/DocumentAnalysis/DocumentAnalysisAssistant.razor.cs
index f6b1b0d6..90ac2c7c 100644
--- a/app/MindWork AI Studio/Assistants/DocumentAnalysis/DocumentAnalysisAssistant.razor.cs	
+++ b/app/MindWork AI Studio/Assistants/DocumentAnalysis/DocumentAnalysisAssistant.razor.cs	
@@ -137,7 +137,7 @@ public partial class DocumentAnalysisAssistant : AssistantBaseCore<SettingsDialo
     private string policyAnalysisRules = string.Empty;
     private string policyOutputRules = string.Empty;
     private string deferredContent = string.Empty;
-    private List<string> loadedDocumentPaths = [];
+    private HashSet<string> loadedDocumentPaths = [];
     
     private bool IsNoPolicySelectedOrProtected => this.selectedPolicy is null || this.selectedPolicy.IsProtected;
     
diff --git a/app/MindWork AI Studio/Components/AttachDocuments.razor.cs b/app/MindWork AI Studio/Components/AttachDocuments.razor.cs
index cf1b88cc..9b446ca9 100644
--- a/app/MindWork AI Studio/Components/AttachDocuments.razor.cs	
+++ b/app/MindWork AI Studio/Components/AttachDocuments.razor.cs	
@@ -8,13 +8,13 @@ namespace AIStudio.Components;
 public partial class AttachDocuments : MSGComponentBase
 {
     [Parameter]
-    public List<string> DocumentPaths { get; set; } = [];
+    public HashSet<string> DocumentPaths { get; set; } = [];
     
     [Parameter]
-    public EventCallback<List<string>> DocumentPathsChanged { get; set; }
+    public EventCallback<HashSet<string>> DocumentPathsChanged { get; set; }
     
     [Parameter]
-    public Func<List<string>, Task> OnChange { get; set; } = _ => Task.CompletedTask;
+    public Func<HashSet<string>, Task> OnChange { get; set; } = _ => Task.CompletedTask;
     
     [Inject]
     private RustService RustService { get; init; } = null!;