diff --git a/smithy-build/src/main/java/software/amazon/smithy/build/PluginContext.java b/smithy-build/src/main/java/software/amazon/smithy/build/PluginContext.java
index 4b052595ec8..0c6dcbbd547 100644
--- a/smithy-build/src/main/java/software/amazon/smithy/build/PluginContext.java
+++ b/smithy-build/src/main/java/software/amazon/smithy/build/PluginContext.java
@@ -34,11 +34,12 @@
 import software.amazon.smithy.model.validation.ValidationEvent;
 import software.amazon.smithy.utils.SetUtils;
 import software.amazon.smithy.utils.SmithyBuilder;
+import software.amazon.smithy.utils.ToSmithyBuilder;
 
 /**
  * Context object used in plugin execution.
  */
-public final class PluginContext {
+public final class PluginContext implements ToSmithyBuilder<PluginContext> {
     private final ProjectionConfig projection;
     private final String projectionName;
     private final Model model;
@@ -239,6 +240,19 @@ private int findOffsetFromStart(String location) {
         return position == -1 ? 0 : position + "file:".length();
     }
 
+    @Override
+    public Builder toBuilder() {
+        return builder()
+                .projection(projectionName, projection)
+                .model(model)
+                .originalModel(originalModel)
+                .events(events)
+                .settings(settings)
+                .fileManifest(fileManifest)
+                .pluginClassLoader(pluginClassLoader)
+                .sources(sources);
+    }
+
     /**
      * Builds a {@link PluginContext}.
      */
diff --git a/smithy-build/src/test/java/software/amazon/smithy/build/PluginContextTest.java b/smithy-build/src/test/java/software/amazon/smithy/build/PluginContextTest.java
index 80f0aaf85f1..610b00818fa 100644
--- a/smithy-build/src/test/java/software/amazon/smithy/build/PluginContextTest.java
+++ b/smithy-build/src/test/java/software/amazon/smithy/build/PluginContextTest.java
@@ -3,11 +3,13 @@
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.contains;
 import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.is;
 
 import java.nio.file.Paths;
 import org.junit.jupiter.api.Test;
 import software.amazon.smithy.build.model.ProjectionConfig;
 import software.amazon.smithy.model.Model;
+import software.amazon.smithy.model.node.Node;
 import software.amazon.smithy.model.shapes.ShapeIndex;
 import software.amazon.smithy.model.transform.ModelTransformer;
 import software.amazon.smithy.utils.ListUtils;
@@ -61,4 +63,24 @@ public void createsNonTraitShapeIndex() {
         assertThat(context.getNonTraitShapes(), equalTo(scrubbed));
         assertThat(context.getNonTraitShapes(), equalTo(scrubbed)); // trigger loading from cache
     }
+
+    @Test
+    public void convertsToBuilder() {
+        PluginContext context = PluginContext.builder()
+                .projection("foo", ProjectionConfig.builder().build())
+                .fileManifest(new MockManifest())
+                .model(Model.builder().build())
+                .originalModel(Model.builder().build())
+                .settings(Node.objectNode().withMember("foo", "bar"))
+                .build();
+        PluginContext context2 = context.toBuilder().build();
+
+        assertThat(context.getProjectionName(), equalTo(context2.getProjectionName()));
+        assertThat(context.getProjection(), equalTo(context2.getProjection()));
+        assertThat(context.getModel(), equalTo(context2.getModel()));
+        assertThat(context.getOriginalModel(), equalTo(context2.getOriginalModel()));
+        assertThat(context.getFileManifest(), is(context2.getFileManifest()));
+        assertThat(context.getSources(), equalTo(context2.getSources()));
+        assertThat(context.getEvents(), equalTo(context2.getEvents()));
+    }
 }