diff --git a/google/cloud/recommender/logging/v1/BUILD.bazel b/google/cloud/recommender/logging/v1/BUILD.bazel
index 901386cd..f1cb3042 100644
--- a/google/cloud/recommender/logging/v1/BUILD.bazel
+++ b/google/cloud/recommender/logging/v1/BUILD.bazel
@@ -14,6 +14,8 @@ proto_library(
         "action_log.proto",
     ],
     deps = [
+        "//google/api:field_behavior_proto",
+        "//google/api:resource_proto",
         "//google/cloud/recommender/v1:recommender_proto",
     ],
 )
@@ -52,6 +54,7 @@ go_proto_library(
     importpath = "google.golang.org/genproto/googleapis/cloud/recommender/logging/v1",
     protos = [":logging_proto"],
     deps = [
+        "//google/api:annotations_go_proto",
         "//google/cloud/recommender/v1:recommender_go_proto",
     ],
 )
@@ -70,6 +73,8 @@ moved_proto_library(
     name = "logging_moved_proto",
     srcs = [":logging_proto"],
     deps = [
+        "//google/api:field_behavior_proto",
+        "//google/api:resource_proto",
         "//google/cloud/recommender/v1:recommender_proto",
     ],
 )
diff --git a/google/cloud/recommender/logging/v1/action_log.proto b/google/cloud/recommender/logging/v1/action_log.proto
index d9c751fc..9634f2a7 100644
--- a/google/cloud/recommender/logging/v1/action_log.proto
+++ b/google/cloud/recommender/logging/v1/action_log.proto
@@ -16,6 +16,9 @@ syntax = "proto3";
 
 package google.cloud.recommender.logging.v1;
 
+import "google/api/field_behavior.proto";
+import "google/api/resource.proto";
+import "google/cloud/recommender/v1/insight.proto";
 import "google/cloud/recommender/v1/recommendation.proto";
 
 option go_package = "google.golang.org/genproto/googleapis/cloud/recommender/logging/v1;logging";
@@ -23,19 +26,39 @@ option java_multiple_files = true;
 option java_outer_classname = "ActionLogProto";
 option java_package = "com.google.cloud.recommender.logging.v1";
 
-// Log content of an action on a recommendation. This includes Mark* actions, as
-// well as ApplyRule actions.
+// Log content of an action on a recommendation. This includes Mark* actions.
 message ActionLog {
   // Required. User that executed this action. Eg, foo@gmail.com
   string actor = 1;
 
-  // Required. Action that was taken by the actor. Eg, MarkCompleted.
+  // Required. State change that was made by the actor. Eg, SUCCEEDED.
   google.cloud.recommender.v1.RecommendationStateInfo.State state = 2;
 
   // Optional. Metadata that was included with the action that was taken.
   map<string, string> state_metadata = 3;
 
   // Required. Name of the recommendation which was acted on. Eg, :
-  // 'projects/foo/locations/global/recommenders/roleReco/recommendations/r1'
+  // 'projects/123/locations/global/recommenders/roleReco/recommendations/r1'
   string recommendation_name = 4;
 }
+
+// Log content of an action on an insight. This includes Mark* actions.
+message InsightActionLog {
+  // Required. User that executed this action. Eg, foo@gmail.com
+  string actor = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. State change that was made by the actor. Eg, ACCEPTED.
+  google.cloud.recommender.v1.InsightStateInfo.State state = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // Optional. Metadata that was included with the action that was taken.
+  map<string, string> state_metadata = 3 [(google.api.field_behavior) = OPTIONAL];
+
+  // Required. Name of the insight which was acted on. Eg, :
+  // 'projects/123/locations/global/insightTypes/roleInsight/insights/i1'
+  string insight = 4 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "recommender.googleapis.com/Insight"
+    }
+  ];
+}
diff --git a/google/cloud/recommender/logging/v1/recommender.yaml b/google/cloud/recommender/logging/v1/recommender.yaml
index bf436442..8f9a63a7 100644
--- a/google/cloud/recommender/logging/v1/recommender.yaml
+++ b/google/cloud/recommender/logging/v1/recommender.yaml
@@ -5,3 +5,4 @@ title: Recommender API Logging
 
 types:
 - name: google.cloud.recommender.logging.v1.ActionLog
+- name: google.cloud.recommender.logging.v1.InsightActionLog