diff --git a/api/openapi-spec/swagger.json b/api/openapi-spec/swagger.json
index 1470e2f3b31e..eefa00f5d6b5 100644
--- a/api/openapi-spec/swagger.json
+++ b/api/openapi-spec/swagger.json
@@ -11035,7 +11035,8 @@
           "type": "string"
         },
         "metadata": {
-          "$ref": "#/definitions/io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta"
+          "$ref": "#/definitions/io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta",
+          "description": "Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata"
         },
         "note": {
           "description": "note is a human-readable description of the status of this operation. Maximal length of the note is 1kB, but libraries should be prepared to handle values up to 64kB.",
@@ -11071,7 +11072,6 @@
         }
       },
       "required": [
-        "metadata",
         "eventTime"
       ],
       "type": "object",
@@ -11174,7 +11174,8 @@
           "type": "string"
         },
         "metadata": {
-          "$ref": "#/definitions/io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta"
+          "$ref": "#/definitions/io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta",
+          "description": "Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata"
         },
         "note": {
           "description": "note is a human-readable description of the status of this operation. Maximal length of the note is 1kB, but libraries should be prepared to handle values up to 64kB.",
@@ -11210,7 +11211,6 @@
         }
       },
       "required": [
-        "metadata",
         "eventTime"
       ],
       "type": "object",
diff --git a/hack/.descriptions_failures b/hack/.descriptions_failures
index d41193145152..0c8aae4f0cba 100644
--- a/hack/.descriptions_failures
+++ b/hack/.descriptions_failures
@@ -10,8 +10,6 @@
 ./staging/src/k8s.io/api/certificates/v1/types.go
 ./staging/src/k8s.io/api/certificates/v1beta1/types.go
 ./staging/src/k8s.io/api/core/v1/types.go
-./staging/src/k8s.io/api/events/v1/types.go
-./staging/src/k8s.io/api/events/v1beta1/types.go
 ./staging/src/k8s.io/api/extensions/v1beta1/types.go
 ./staging/src/k8s.io/api/flowcontrol/v1alpha1/types.go
 ./staging/src/k8s.io/api/flowcontrol/v1beta1/types.go
diff --git a/staging/src/k8s.io/api/events/v1/generated.proto b/staging/src/k8s.io/api/events/v1/generated.proto
index 690c99e4c5a7..04df31b0c1cf 100644
--- a/staging/src/k8s.io/api/events/v1/generated.proto
+++ b/staging/src/k8s.io/api/events/v1/generated.proto
@@ -36,6 +36,9 @@ option go_package = "v1";
 // continued existence of events with that Reason.  Events should be
 // treated as informative, best-effort, supplemental data.
 message Event {
+  // Standard object's metadata.
+  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
+  // +optional
   optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;
 
   // eventTime is the time when this Event was first observed. It is required.
diff --git a/staging/src/k8s.io/api/events/v1/types.go b/staging/src/k8s.io/api/events/v1/types.go
index 4bf715872ab5..e01a2b21e73a 100644
--- a/staging/src/k8s.io/api/events/v1/types.go
+++ b/staging/src/k8s.io/api/events/v1/types.go
@@ -33,6 +33,9 @@ import (
 type Event struct {
 	metav1.TypeMeta `json:",inline"`
 
+	// Standard object's metadata.
+	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
+	// +optional
 	metav1.ObjectMeta `json:"metadata" protobuf:"bytes,1,opt,name=metadata"`
 
 	// eventTime is the time when this Event was first observed. It is required.
diff --git a/staging/src/k8s.io/api/events/v1/types_swagger_doc_generated.go b/staging/src/k8s.io/api/events/v1/types_swagger_doc_generated.go
index 7255727bb498..797da63bb722 100644
--- a/staging/src/k8s.io/api/events/v1/types_swagger_doc_generated.go
+++ b/staging/src/k8s.io/api/events/v1/types_swagger_doc_generated.go
@@ -29,6 +29,7 @@ package v1
 // AUTO-GENERATED FUNCTIONS START HERE. DO NOT EDIT.
 var map_Event = map[string]string{
 	"":                         "Event is a report of an event somewhere in the cluster. It generally denotes some state change in the system. Events have a limited retention time and triggers and messages may evolve with time.  Event consumers should not rely on the timing of an event with a given Reason reflecting a consistent underlying trigger, or the continued existence of events with that Reason.  Events should be treated as informative, best-effort, supplemental data.",
+	"metadata":                 "Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata",
 	"eventTime":                "eventTime is the time when this Event was first observed. It is required.",
 	"series":                   "series is data about the Event series this event represents or nil if it's a singleton Event.",
 	"reportingController":      "reportingController is the name of the controller that emitted this Event, e.g. `kubernetes.io/kubelet`. This field cannot be empty for new Events.",
diff --git a/staging/src/k8s.io/api/events/v1beta1/generated.proto b/staging/src/k8s.io/api/events/v1beta1/generated.proto
index 90b57d8d08ab..57e95b9648f6 100644
--- a/staging/src/k8s.io/api/events/v1beta1/generated.proto
+++ b/staging/src/k8s.io/api/events/v1beta1/generated.proto
@@ -36,6 +36,9 @@ option go_package = "v1beta1";
 // continued existence of events with that Reason.  Events should be
 // treated as informative, best-effort, supplemental data.
 message Event {
+  // Standard object's metadata.
+  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
+  // +optional
   optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;
 
   // eventTime is the time when this Event was first observed. It is required.
diff --git a/staging/src/k8s.io/api/events/v1beta1/types.go b/staging/src/k8s.io/api/events/v1beta1/types.go
index 796e56ea7daf..5bb6f92b22f6 100644
--- a/staging/src/k8s.io/api/events/v1beta1/types.go
+++ b/staging/src/k8s.io/api/events/v1beta1/types.go
@@ -35,6 +35,9 @@ import (
 type Event struct {
 	metav1.TypeMeta `json:",inline"`
 
+	// Standard object's metadata.
+	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
+	// +optional
 	metav1.ObjectMeta `json:"metadata" protobuf:"bytes,1,opt,name=metadata"`
 
 	// eventTime is the time when this Event was first observed. It is required.
diff --git a/staging/src/k8s.io/api/events/v1beta1/types_swagger_doc_generated.go b/staging/src/k8s.io/api/events/v1beta1/types_swagger_doc_generated.go
index 7f8e162cdd4b..0e6bd5a83c54 100644
--- a/staging/src/k8s.io/api/events/v1beta1/types_swagger_doc_generated.go
+++ b/staging/src/k8s.io/api/events/v1beta1/types_swagger_doc_generated.go
@@ -29,6 +29,7 @@ package v1beta1
 // AUTO-GENERATED FUNCTIONS START HERE. DO NOT EDIT.
 var map_Event = map[string]string{
 	"":                         "Event is a report of an event somewhere in the cluster. It generally denotes some state change in the system. Events have a limited retention time and triggers and messages may evolve with time.  Event consumers should not rely on the timing of an event with a given Reason reflecting a consistent underlying trigger, or the continued existence of events with that Reason.  Events should be treated as informative, best-effort, supplemental data.",
+	"metadata":                 "Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata",
 	"eventTime":                "eventTime is the time when this Event was first observed. It is required.",
 	"series":                   "series is data about the Event series this event represents or nil if it's a singleton Event.",
 	"reportingController":      "reportingController is the name of the controller that emitted this Event, e.g. `kubernetes.io/kubelet`. This field cannot be empty for new Events.",