diff --git a/src/BuildPrediction/Predictors/LinkItemsPredictor.cs b/src/BuildPrediction/Predictors/LinkItemsPredictor.cs
index 9991568..60803ab 100644
--- a/src/BuildPrediction/Predictors/LinkItemsPredictor.cs
+++ b/src/BuildPrediction/Predictors/LinkItemsPredictor.cs
@@ -2,31 +2,81 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 using System;
+using System.Collections.Generic;
 using Microsoft.Build.Execution;
 
-namespace Microsoft.Build.Prediction.Predictors
+namespace Microsoft.Build.Prediction.Predictors;
+
+/// <summary>
+/// Predicts inputs based on Link, Lib, and ImpLib items.
+/// </summary>
+public sealed class LinkItemsPredictor : IProjectPredictor
 {
-    /// <summary>
-    /// Finds ClInclude items, typically header files used during compilation.
-    /// </summary>
-    public sealed class LinkItemsPredictor : IProjectPredictor
+    // See Microsoft.CppCommon.targets for items which use AdditionalDependencies.
+    internal const string LinkItemName = "Link";
+    internal const string LibItemName = "Lib";
+    internal const string ImpLibItemName = "ImpLib";
+
+    internal const string AdditionalDependenciesMetadata = "AdditionalDependencies";
+    internal const string AdditionalLibraryDirectoriesMetadata = "AdditionalLibraryDirectories";
+
+    private static readonly char[] IncludePathsSeparator = [';'];
+
+    /// <inheritdoc />
+    public void PredictInputsAndOutputs(ProjectInstance projectInstance, ProjectPredictionReporter reporter)
+    {
+        // This predictor only applies to vcxproj files
+        if (!projectInstance.FullPath.EndsWith(".vcxproj", StringComparison.OrdinalIgnoreCase))
+        {
+            return;
+        }
+
+        // These are commonly added via an ItemDefinitionGroup, so use a HashSet to dedupe the repeats.
+        HashSet<string> reportedFiles = new(StringComparer.OrdinalIgnoreCase);
+        HashSet<string> reportedDirectories = new(StringComparer.OrdinalIgnoreCase);
+
+        ReportInputsForItemType(reporter, projectInstance, LinkItemName, reportedFiles, reportedDirectories);
+        ReportInputsForItemType(reporter, projectInstance, LibItemName, reportedFiles, reportedDirectories);
+        ReportInputsForItemType(reporter, projectInstance, ImpLibItemName, reportedFiles, reportedDirectories);
+    }
+
+    private void ReportInputsForItemType(
+        ProjectPredictionReporter reporter,
+        ProjectInstance projectInstance,
+        string itemType,
+        HashSet<string> reportedFiles,
+        HashSet<string> reportedDirectories)
     {
-        internal const string LinkItemName = "Link";
+        ICollection<ProjectItemInstance> items = projectInstance.GetItems(itemType);
+        if (items.Count == 0)
+        {
+            return;
+        }
 
-        /// <inheritdoc/>
-        public void PredictInputsAndOutputs(
-            ProjectInstance projectInstance,
-            ProjectPredictionReporter predictionReporter)
+        foreach (ProjectItemInstance item in items)
         {
-            // This predictor only applies to vcxproj files
-            if (!projectInstance.FullPath.EndsWith(".vcxproj", StringComparison.OrdinalIgnoreCase))
+            reporter.ReportInputFile(item.EvaluatedInclude);
+
+            string[] additionalDependencies = item.GetMetadataValue(AdditionalDependenciesMetadata)
+                .Split(IncludePathsSeparator, StringSplitOptions.RemoveEmptyEntries);
+            foreach (string dependency in additionalDependencies)
             {
-                return;
+                string trimmedDependency = dependency.Trim();
+                if (!string.IsNullOrEmpty(trimmedDependency) && reportedFiles.Add(trimmedDependency))
+                {
+                    reporter.ReportInputFile(trimmedDependency);
+                }
             }
 
-            foreach (ProjectItemInstance item in projectInstance.GetItems(LinkItemName))
+            string[] additionalLibraryDirectories = item.GetMetadataValue(AdditionalLibraryDirectoriesMetadata)
+                .Split(IncludePathsSeparator, StringSplitOptions.RemoveEmptyEntries);
+            foreach (string directory in additionalLibraryDirectories)
             {
-                predictionReporter.ReportInputFile(item.EvaluatedInclude);
+                string trimmedDirectory = directory.Trim();
+                if (!string.IsNullOrEmpty(trimmedDirectory) && reportedDirectories.Add(trimmedDirectory))
+                {
+                    reporter.ReportInputDirectory(trimmedDirectory);
+                }
             }
         }
     }
diff --git a/src/BuildPredictionTests/Predictors/LinkItemsPredictorTests.cs b/src/BuildPredictionTests/Predictors/LinkItemsPredictorTests.cs
index f49285c..141e922 100644
--- a/src/BuildPredictionTests/Predictors/LinkItemsPredictorTests.cs
+++ b/src/BuildPredictionTests/Predictors/LinkItemsPredictorTests.cs
@@ -8,58 +8,178 @@
 using Microsoft.Build.Prediction.Predictors;
 using Xunit;
 
-namespace Microsoft.Build.Prediction.Tests.Predictors
+namespace Microsoft.Build.Prediction.Tests.Predictors;
+
+public sealed class LinkItemsPredictorTests
 {
-    public class LinkItemsPredictorTests
+    [Theory]
+    [InlineData(LinkItemsPredictor.LinkItemName)]
+    [InlineData(LinkItemsPredictor.LibItemName)]
+    [InlineData(LinkItemsPredictor.ImpLibItemName)]
+    public void ItemDefinitionGroup(string itemType)
     {
-        private readonly string _rootDir;
+        ProjectRootElement projectRootElement = ProjectRootElement.Create(@"src\project.vcxproj");
+
+        ProjectItemDefinitionElement itemDefinition = projectRootElement.AddItemDefinitionGroup().AddItemDefinition(itemType);
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalDependenciesMetadata, @"..\AdditionalDependency.lib;%(AdditionalDependencies)");
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata, @"..\AdditionalLibraryDirectory;%(AdditionalLibraryDirectories)");
+
+        projectRootElement.AddItem(itemType, @"..\someLib.lib");
 
-        public LinkItemsPredictorTests()
+        ProjectInstance projectInstance = TestHelpers.CreateProjectInstanceFromRootElement(projectRootElement);
+
+        var expectedInputFiles = new[]
+        {
+            new PredictedItem("someLib.lib", nameof(LinkItemsPredictor)),
+            new PredictedItem("AdditionalDependency.lib", nameof(LinkItemsPredictor)),
+        };
+        var expectedInputDirectories = new[]
         {
-            // Isolate each test into its own folder
-            _rootDir = Path.Combine(Directory.GetCurrentDirectory(), nameof(LinkItemsPredictorTests), Guid.NewGuid().ToString());
-            Directory.CreateDirectory(_rootDir);
-        }
+            new PredictedItem("AdditionalLibraryDirectory", nameof(LinkItemsPredictor)),
+        };
+        new LinkItemsPredictor()
+            .GetProjectPredictions(projectInstance)
+            .AssertPredictions(
+                projectInstance,
+                expectedInputFiles.MakeAbsolute(Directory.GetCurrentDirectory()),
+                expectedInputDirectories.MakeAbsolute(Directory.GetCurrentDirectory()),
+                null,
+                null);
+    }
+
+    [Theory]
+    [InlineData(LinkItemsPredictor.LinkItemName)]
+    [InlineData(LinkItemsPredictor.LibItemName)]
+    [InlineData(LinkItemsPredictor.ImpLibItemName)]
+    public void OverrideMetadata(string itemType)
+    {
+        ProjectRootElement projectRootElement = ProjectRootElement.Create(@"src\project.vcxproj");
+
+        ProjectItemDefinitionElement itemDefinition = projectRootElement.AddItemDefinitionGroup().AddItemDefinition(itemType);
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalDependenciesMetadata, @"..\AdditionalDependency.lib;%(AdditionalDependencies)");
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata, @"..\AdditionalLibraryDirectory;%(AdditionalLibraryDirectories)");
 
-        [Fact]
-        public void FindsItems()
+        ProjectItemElement item = projectRootElement.AddItem(itemType, @"..\someLib.lib");
+        item.AddMetadata(LinkItemsPredictor.AdditionalDependenciesMetadata, @"..\ReplacedAdditionalDependency.lib");
+        item.AddMetadata(LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata, @"..\ReplacedAdditionalLibraryDirectory");
+
+        ProjectInstance projectInstance = TestHelpers.CreateProjectInstanceFromRootElement(projectRootElement);
+
+        var expectedInputFiles = new[]
         {
-            ProjectRootElement projectRootElement = ProjectRootElement.Create(Path.Combine(_rootDir, @"project.vcxproj"));
-            projectRootElement.AddItem(LinkItemsPredictor.LinkItemName, "foo.lib");
-            projectRootElement.AddItem(LinkItemsPredictor.LinkItemName, "bar.lib");
-            projectRootElement.AddItem(LinkItemsPredictor.LinkItemName, "baz.lib");
-
-            ProjectInstance projectInstance = TestHelpers.CreateProjectInstanceFromRootElement(projectRootElement);
-
-            var expectedInputFiles = new[]
-            {
-                new PredictedItem("foo.lib", nameof(LinkItemsPredictor)),
-                new PredictedItem("bar.lib", nameof(LinkItemsPredictor)),
-                new PredictedItem("baz.lib", nameof(LinkItemsPredictor)),
-            };
-            new LinkItemsPredictor()
-                .GetProjectPredictions(projectInstance)
-                .AssertPredictions(
-                    projectInstance,
-                    expectedInputFiles,
-                    null,
-                    null,
-                    null);
-        }
-
-        [Fact]
-        public void SkipOtherProjectTypes()
+            new PredictedItem("someLib.lib", nameof(LinkItemsPredictor)),
+            new PredictedItem("ReplacedAdditionalDependency.lib", nameof(LinkItemsPredictor)),
+        };
+        var expectedInputDirectories = new[]
         {
-            ProjectRootElement projectRootElement = ProjectRootElement.Create(Path.Combine(_rootDir, @"project.csproj"));
-            projectRootElement.AddItem(LinkItemsPredictor.LinkItemName, "foo.lib");
-            projectRootElement.AddItem(LinkItemsPredictor.LinkItemName, "bar.lib");
-            projectRootElement.AddItem(LinkItemsPredictor.LinkItemName, "baz.lib");
+            new PredictedItem("ReplacedAdditionalLibraryDirectory", nameof(LinkItemsPredictor)),
+        };
+        new LinkItemsPredictor()
+            .GetProjectPredictions(projectInstance)
+            .AssertPredictions(
+                projectInstance,
+                expectedInputFiles.MakeAbsolute(Directory.GetCurrentDirectory()),
+                expectedInputDirectories.MakeAbsolute(Directory.GetCurrentDirectory()),
+                null,
+                null);
+    }
+
+    [Theory]
+    [InlineData(LinkItemsPredictor.LinkItemName)]
+    [InlineData(LinkItemsPredictor.LibItemName)]
+    [InlineData(LinkItemsPredictor.ImpLibItemName)]
+    public void AppendMetadata(string itemType)
+    {
+        ProjectRootElement projectRootElement = ProjectRootElement.Create(@"src\project.vcxproj");
+
+        ProjectItemDefinitionElement itemDefinition = projectRootElement.AddItemDefinitionGroup().AddItemDefinition(itemType);
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalDependenciesMetadata, @"..\AdditionalDependency.lib;%(AdditionalDependencies)");
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata, @"..\AdditionalLibraryDirectory;%(AdditionalLibraryDirectories)");
+
+        ProjectItemElement item = projectRootElement.AddItem(itemType, @"..\someLib.lib");
+        item.AddMetadata(LinkItemsPredictor.AdditionalDependenciesMetadata, @"..\AnotherAdditionalDependency.lib;%(AdditionalDependencies)");
+        item.AddMetadata(LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata, @"..\AnotherAdditionalLibraryDirectory;%(AdditionalLibraryDirectories)");
+
+        ProjectInstance projectInstance = TestHelpers.CreateProjectInstanceFromRootElement(projectRootElement);
+
+        var expectedInputFiles = new[]
+        {
+            new PredictedItem("someLib.lib", nameof(LinkItemsPredictor)),
+            new PredictedItem("AdditionalDependency.lib", nameof(LinkItemsPredictor)),
+            new PredictedItem("AnotherAdditionalDependency.lib", nameof(LinkItemsPredictor)),
+        };
+        var expectedInputDirectories = new[]
+        {
+            new PredictedItem("AdditionalLibraryDirectory", nameof(LinkItemsPredictor)),
+            new PredictedItem("AnotherAdditionalLibraryDirectory", nameof(LinkItemsPredictor)),
+        };
+        new LinkItemsPredictor()
+            .GetProjectPredictions(projectInstance)
+            .AssertPredictions(
+                projectInstance,
+                expectedInputFiles.MakeAbsolute(Directory.GetCurrentDirectory()),
+                expectedInputDirectories.MakeAbsolute(Directory.GetCurrentDirectory()),
+                null,
+                null);
+    }
+
+    [Theory]
+    [InlineData(LinkItemsPredictor.LinkItemName)]
+    [InlineData(LinkItemsPredictor.LibItemName)]
+    [InlineData(LinkItemsPredictor.ImpLibItemName)]
+    public void DuplicatesAndSpaces(string itemType)
+    {
+        ProjectRootElement projectRootElement = ProjectRootElement.Create(@"src\project.vcxproj");
+
+        ProjectItemDefinitionElement itemDefinition = projectRootElement.AddItemDefinitionGroup().AddItemDefinition(itemType);
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalDependenciesMetadata, @"..\AdditionalDependency.lib;%(AdditionalDependencies)");
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata, @"..\AdditionalLibraryDirectory;%(AdditionalLibraryDirectories)");
+
+        ProjectItemElement item = projectRootElement.AddItem(itemType, @"..\someLib.lib");
+        item.AddMetadata(
+            LinkItemsPredictor.AdditionalDependenciesMetadata,
+            $@"%(AdditionalDependencies); ;;%(AdditionalDependencies);..\AnotherAdditionalDependency.lib;{Environment.NewLine}..\AnotherAdditionalDependency.lib;%(AdditionalDependencies)");
+        item.AddMetadata(
+            LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata,
+            $@"%(AdditionalLibraryDirectories); ;;%(AdditionalLibraryDirectories);..\AnotherAdditionalLibraryDirectories;{Environment.NewLine}..\AnotherAdditionalLibraryDirectories;%(AdditionalLibraryDirectories)");
+
+        ProjectInstance projectInstance = TestHelpers.CreateProjectInstanceFromRootElement(projectRootElement);
+
+        var expectedInputFiles = new[]
+        {
+            new PredictedItem("someLib.lib", nameof(LinkItemsPredictor)),
+            new PredictedItem("AdditionalDependency.lib", nameof(LinkItemsPredictor)),
+            new PredictedItem("AnotherAdditionalDependency.lib", nameof(LinkItemsPredictor)),
+        };
+        var expectedInputDirectories = new[]
+        {
+            new PredictedItem("AdditionalLibraryDirectory", nameof(LinkItemsPredictor)),
+            new PredictedItem("AnotherAdditionalLibraryDirectories", nameof(LinkItemsPredictor)),
+        };
+        new LinkItemsPredictor()
+            .GetProjectPredictions(projectInstance)
+            .AssertPredictions(
+                projectInstance,
+                expectedInputFiles.MakeAbsolute(Directory.GetCurrentDirectory()),
+                expectedInputDirectories.MakeAbsolute(Directory.GetCurrentDirectory()),
+                null,
+                null);
+    }
+
+    [Fact]
+    public void SkipOtherProjectTypes()
+    {
+        ProjectRootElement projectRootElement = ProjectRootElement.Create(@"src\project.csproj");
+
+        ProjectItemDefinitionElement itemDefinition = projectRootElement.AddItemDefinitionGroup().AddItemDefinition(LinkItemsPredictor.LinkItemName);
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalDependenciesMetadata, @"..\AdditionalDependency.lib;%(AdditionalDependencies)");
+        itemDefinition.AddMetadata(LinkItemsPredictor.AdditionalLibraryDirectoriesMetadata, @"..\AdditionalLibraryDirectory;%(AdditionalLibraryDirectories)");
 
-            ProjectInstance projectInstance = TestHelpers.CreateProjectInstanceFromRootElement(projectRootElement);
+        projectRootElement.AddItem(LinkItemsPredictor.LinkItemName, @"..\someLib.lib");
 
-            new AdditionalIncludeDirectoriesPredictor()
-                .GetProjectPredictions(projectInstance)
-                .AssertNoPredictions();
-        }
+        ProjectInstance projectInstance = TestHelpers.CreateProjectInstanceFromRootElement(projectRootElement);
+        new LinkItemsPredictor()
+            .GetProjectPredictions(projectInstance)
+            .AssertNoPredictions();
     }
 }
\ No newline at end of file