diff --git a/src/Razor/src/Microsoft.AspNetCore.Razor.LanguageServer/Hover/HoverEndpoint.cs b/src/Razor/src/Microsoft.AspNetCore.Razor.LanguageServer/Hover/HoverEndpoint.cs
index 95098ca968b..90afa35df3f 100644
--- a/src/Razor/src/Microsoft.AspNetCore.Razor.LanguageServer/Hover/HoverEndpoint.cs
+++ b/src/Razor/src/Microsoft.AspNetCore.Razor.LanguageServer/Hover/HoverEndpoint.cs
@@ -90,7 +90,6 @@ public void ApplyCapabilities(VSInternalServerCapabilities serverCapabilities, V
 
         return await HoverFactory.GetHoverAsync(
             codeDocument,
-            documentContext.FilePath,
             positionInfo.HostDocumentIndex,
             options,
             _projectManager.GetQueryOperations(),
diff --git a/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Hover/HoverFactory.cs b/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Hover/HoverFactory.cs
index 8f005337958..7c750004e0a 100644
--- a/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Hover/HoverFactory.cs
+++ b/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Hover/HoverFactory.cs
@@ -27,7 +27,6 @@ internal static class HoverFactory
 {
     public static Task<LspHover?> GetHoverAsync(
         RazorCodeDocument codeDocument,
-        string documentFilePath,
         int absoluteIndex,
         HoverDisplayOptions options,
         ISolutionQueryOperations solutionQueryOperations,
@@ -96,7 +95,7 @@ internal static class HoverFactory
             var span = containingTagNameToken.GetLinePositionSpan(codeDocument.Source);
 
             return ElementInfoToHoverAsync(
-                documentFilePath, binding.Descriptors, span, options, solutionQueryOperations, cancellationToken);
+                codeDocument.Source.FilePath, binding.Descriptors, span, options, solutionQueryOperations, cancellationToken);
         }
 
         if (HtmlFacts.TryGetAttributeInfo(owner, out containingTagNameToken, out _, out var selectedAttributeName, out var selectedAttributeNameLocation, out attributes) &&
@@ -218,7 +217,7 @@ internal static class HoverFactory
     }
 
     private static async Task<LspHover?> ElementInfoToHoverAsync(
-        string documentFilePath,
+        string? documentFilePath,
         ImmutableArray<TagHelperDescriptor> descriptors,
         LinePositionSpan span,
         HoverDisplayOptions options,
diff --git a/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/ClassifiedTagHelperTooltipFactory.cs b/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/ClassifiedTagHelperTooltipFactory.cs
index 73f78994d69..603cf2f8459 100644
--- a/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/ClassifiedTagHelperTooltipFactory.cs
+++ b/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/ClassifiedTagHelperTooltipFactory.cs
@@ -58,7 +58,7 @@ internal static class ClassifiedTagHelperTooltipFactory
     private static readonly ClassifiedTextRun s_nullableType = new(ClassificationTypeNames.Punctuation, "?");
 
     public static async Task<ContainerElement?> TryCreateTooltipContainerAsync(
-        string documentFilePath,
+        string? documentFilePath,
         AggregateBoundElementDescription elementDescriptionInfo,
         ISolutionQueryOperations solutionQueryOperations,
         CancellationToken cancellationToken)
@@ -140,7 +140,7 @@ public static bool TryCreateTooltip(AggregateBoundAttributeDescription attribute
     }
 
     private static async Task<ImmutableArray<DescriptionClassification>> TryClassifyElementAsync(
-        string documentFilePath,
+        string? documentFilePath,
         AggregateBoundElementDescription elementInfo,
         ISolutionQueryOperations solutionQueryOperations,
         CancellationToken cancellationToken)
@@ -169,8 +169,11 @@ private static async Task<ImmutableArray<DescriptionClassification>> TryClassify
             TryClassifySummary(documentationRuns, descriptionInfo.Documentation);
 
             // 3. Project availability
-            await AddProjectAvailabilityInfoAsync(
-                documentFilePath, descriptionInfo.TagHelperTypeName, solutionQueryOperations, documentationRuns, cancellationToken).ConfigureAwait(false);
+            if (documentFilePath is not null)
+            {
+                await AddProjectAvailabilityInfoAsync(
+                    documentFilePath, descriptionInfo.TagHelperTypeName, solutionQueryOperations, documentationRuns, cancellationToken).ConfigureAwait(false);
+            }
 
             // 4. Combine type + summary information
             descriptions.Add(new DescriptionClassification(typeRuns, documentationRuns));
diff --git a/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/MarkupTagHelperTooltipFactory.cs b/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/MarkupTagHelperTooltipFactory.cs
index 7c6635b6433..fd70b55bc97 100644
--- a/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/MarkupTagHelperTooltipFactory.cs
+++ b/src/Razor/src/Microsoft.CodeAnalysis.Razor.Workspaces/Tooltip/MarkupTagHelperTooltipFactory.cs
@@ -16,7 +16,7 @@ namespace Microsoft.CodeAnalysis.Razor.Tooltip;
 internal static class MarkupTagHelperTooltipFactory
 {
     public static async Task<MarkupContent?> TryCreateTooltipAsync(
-        string documentFilePath,
+        string? documentFilePath,
         AggregateBoundElementDescription elementDescriptionInfo,
         ISolutionQueryOperations solutionQueryOperations,
         MarkupKind markupKind,
@@ -73,14 +73,17 @@ internal static class MarkupTagHelperTooltipFactory
                 descriptionBuilder.Append(finalSummaryContent);
             }
 
-            var availability = await solutionQueryOperations
-                .GetProjectAvailabilityTextAsync(documentFilePath, tagHelperType, cancellationToken)
-                .ConfigureAwait(false);
-
-            if (availability is not null)
+            if (documentFilePath is not null)
             {
-                descriptionBuilder.AppendLine();
-                descriptionBuilder.Append(availability);
+                var availability = await solutionQueryOperations
+                    .GetProjectAvailabilityTextAsync(documentFilePath, tagHelperType, cancellationToken)
+                    .ConfigureAwait(false);
+
+                if (availability is not null)
+                {
+                    descriptionBuilder.AppendLine();
+                    descriptionBuilder.Append(availability);
+                }
             }
         }
 
diff --git a/src/Razor/test/Microsoft.CodeAnalysis.Razor.Workspaces.Test/Hover/HoverFactoryTest.cs b/src/Razor/test/Microsoft.CodeAnalysis.Razor.Workspaces.Test/Hover/HoverFactoryTest.cs
index 81dea3d1b27..c2ec26046cf 100644
--- a/src/Razor/test/Microsoft.CodeAnalysis.Razor.Workspaces.Test/Hover/HoverFactoryTest.cs
+++ b/src/Razor/test/Microsoft.CodeAnalysis.Razor.Workspaces.Test/Hover/HoverFactoryTest.cs
@@ -44,7 +44,7 @@ public async Task GetHoverAsync_TagHelper_Element()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -68,7 +68,7 @@ public async Task GetHoverAsync_TagHelper_Element_WithParent()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -92,7 +92,7 @@ public async Task GetHoverAsync_TagHelper_Attribute_WithParent()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -114,7 +114,7 @@ public async Task GetHoverAsync_TagHelper_Element_EndTag()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -136,7 +136,7 @@ public async Task GetHoverAsync_TagHelper_Attribute()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -159,7 +159,7 @@ public async Task GetHoverAsync_TagHelper_AttributeTrailingEdge()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -182,7 +182,7 @@ public async Task GetHoverAsync_TagHelper_AttributeValue_ReturnsNull()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.Null(hover);
@@ -200,7 +200,7 @@ public async Task GetHoverAsync_TagHelper_AfterAttributeEquals_ReturnsNull()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.Null(hover);
@@ -218,7 +218,7 @@ public async Task GetHoverAsync_TagHelper_AttributeEnd_ReturnsNull()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.Null(hover);
@@ -236,7 +236,7 @@ public async Task GetHoverAsync_TagHelper_MinimizedAttribute()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -263,7 +263,7 @@ public void Increment(){
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, "text.razor", SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -285,7 +285,7 @@ public async Task GetHoverAsync_TagHelper_MalformedElement()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -307,7 +307,7 @@ public async Task GetHoverAsync_TagHelper_MalformedAttribute()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -330,7 +330,7 @@ public async Task GetHoverAsync_HTML_MarkupElement()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseMarkdown, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.Null(hover);
@@ -348,7 +348,7 @@ public async Task GetHoverAsync_TagHelper_PlainTextElement()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -371,7 +371,7 @@ public async Task GetHoverAsync_TagHelper_PlainTextElement_EndTag()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -393,7 +393,7 @@ public async Task GetHoverAsync_TagHelper_TextComponent()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: true, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.razor", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -417,7 +417,7 @@ public async Task GetHoverAsync_TagHelper_TextComponent_NestedInHtml()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: true, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.razor", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -442,7 +442,7 @@ public async Task GetHoverAsync_TagHelper_TextComponent_NestedInCSharp()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: true, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.razor", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.Null(hover);
@@ -464,7 +464,7 @@ public async Task GetHoverAsync_TagHelper_TextComponent_NestedInCSharpAndText()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: true, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.razor", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -487,7 +487,7 @@ public async Task GetHoverAsync_TagHelper_PlainTextAttribute()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -511,7 +511,7 @@ public async Task GetHoverAsync_HTML_PlainTextElement()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.Null(hover);
@@ -529,7 +529,7 @@ public async Task GetHoverAsync_HTML_PlainTextAttribute()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UsePlainText, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.Null(hover);
@@ -547,7 +547,7 @@ public async Task GetHoverAsync_TagHelper_Element_VSClient_ReturnVSHover()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseVisualStudio, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseVisualStudio, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);
@@ -585,7 +585,7 @@ public async Task GetHoverAsync_TagHelper_Attribute_VSClient_ReturnVSHover()
         var codeDocument = RazorCodeDocumentFactory.CreateCodeDocument(code.Text, isRazorFile: false, SimpleTagHelpers.Default);
 
         // Act
-        var hover = await HoverFactory.GetHoverAsync(codeDocument, "file.cshtml", code.Position, UseVisualStudio, CreateSolutionQueryOperations(), DisposalToken);
+        var hover = await HoverFactory.GetHoverAsync(codeDocument, code.Position, UseVisualStudio, CreateSolutionQueryOperations(), DisposalToken);
 
         // Assert
         Assert.NotNull(hover);