diff --git a/core/actions/incremental_table_test.ts b/core/actions/incremental_table_test.ts
index 6f36504de..a9876f0cc 100644
--- a/core/actions/incremental_table_test.ts
+++ b/core/actions/incremental_table_test.ts
@@ -104,6 +104,11 @@ actions:
     onSchemaChange: "SYNCHRONIZE",
     metadata: {
         overview: "incremental table overview",
+        extraProperties: {
+            fields: {
+                priority: { stringValue: "high" }
+            }
+        }
     },
 }
 `;
@@ -186,8 +191,13 @@ SELECT 1`
                 key: "val"
               },
               metadata: {
-                overview: "incremental table overview"
-              }
+                overview: "incremental table overview",
+                extraProperties: {
+                  fields: {
+                    priority: { stringValue: "high" }
+                  }
+                }
+              },
             }
           }
         ]);
diff --git a/core/actions/table_test.ts b/core/actions/table_test.ts
index 0dbec38d5..9981043b7 100644
--- a/core/actions/table_test.ts
+++ b/core/actions/table_test.ts
@@ -92,6 +92,11 @@ actions:
     hermetic: true,
     metadata: {
         overview: "table overview",
+        extraProperties: {
+            fields: {
+                priority: { stringValue: "high" }
+            }
+        }
     }
 }`;
 
@@ -169,7 +174,12 @@ SELECT 1`
                 key: "val"
               },
               metadata: {
-                overview: "table overview"
+                overview: "table overview",
+                extraProperties: {
+                  fields: {
+                    priority: { stringValue: "high" }
+                  }
+                }
               }
             }
           }
diff --git a/core/actions/view_test.ts b/core/actions/view_test.ts
index d5963690a..d66847930 100644
--- a/core/actions/view_test.ts
+++ b/core/actions/view_test.ts
@@ -90,6 +90,11 @@ actions:
     ${exampleBuiltInAssertions.inputAssertionBlock}
     metadata: {
         overview: "view overview",
+        extraProperties: {
+            fields: {
+                priority: { stringValue: "high" }
+            }
+        }
     },
 }`;
     [
@@ -164,7 +169,12 @@ SELECT 1`
                 key: "val"
               },
               metadata: {
-                overview: "view overview"
+                overview: "view overview",
+                extraProperties: {
+                  fields: {
+                    priority: { stringValue: "high" }
+                  }
+                }
               },
             },
             materialized: true
diff --git a/protos/configs.proto b/protos/configs.proto
index 3048bf2dc..67dae097b 100644
--- a/protos/configs.proto
+++ b/protos/configs.proto
@@ -8,6 +8,8 @@ option java_multiple_files = true;
 
 option go_package = "github.com/dataform-co/dataform/protos/dataform";
 
+import "google/protobuf/struct.proto";
+
 // Workflow Settings defines the contents of the `workflow_settings.yaml`
 // configuration file.
 message WorkflowSettings {
@@ -266,6 +268,8 @@ message ActionConfig {
   message Metadata {
     // A detailed description of the data object.
     string overview = 1;
+    // Extra properties of the data object.
+    google.protobuf.Struct extra_properties = 2;
   }
 
   message ViewConfig {
diff --git a/protos/core.proto b/protos/core.proto
index d327960e8..ae9673205 100644
--- a/protos/core.proto
+++ b/protos/core.proto
@@ -3,6 +3,7 @@ syntax = "proto3";
 package dataform;
 
 import "protos/configs.proto";
+import "google/protobuf/struct.proto";
 
 option java_package = "com.dataform.protos";
 option java_outer_classname = "CoreMeta";
@@ -110,6 +111,7 @@ message ActionDescriptor {
 
 message Metadata {
   string overview = 1;
+  google.protobuf.Struct extra_properties = 2;
 }
 
 message ColumnDescriptor {