diff --git a/nebius/ai/v1/endpoint.proto b/nebius/ai/v1/endpoint.proto
index b0b96b2..c71df01 100644
--- a/nebius/ai/v1/endpoint.proto
+++ b/nebius/ai/v1/endpoint.proto
@@ -15,7 +15,12 @@ option java_package = "ai.nebius.pub.ai.v1";
 
 // Represents an endpoint with a specified workload.
 message Endpoint {
-  common.v1.ResourceMetadata metadata = 1 [(buf.validate.field).required = true];
+  common.v1.ResourceMetadata metadata = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      parent_resource: ["project"]
+    }
+  ];
 
   EndpointSpec spec = 2 [(buf.validate.field).required = true];
 
diff --git a/nebius/ai/v1/endpoint_service.proto b/nebius/ai/v1/endpoint_service.proto
index cd03cf6..ef00712 100644
--- a/nebius/ai/v1/endpoint_service.proto
+++ b/nebius/ai/v1/endpoint_service.proto
@@ -49,13 +49,23 @@ message GetEndpointRequest {
 }
 
 message GetEndpointByNameRequest {
-  string parent_id = 1 [(buf.validate.field).required = true];
+  string parent_id = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      resource: ["project"]
+    }
+  ];
 
   string name = 2 [(buf.validate.field).required = true];
 }
 
 message ListEndpointsRequest {
-  string parent_id = 1 [(buf.validate.field).required = true];
+  string parent_id = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      resource: ["project"]
+    }
+  ];
 
   int64 page_size = 2;
 
@@ -63,7 +73,12 @@ message ListEndpointsRequest {
 }
 
 message CreateEndpointRequest {
-  common.v1.ResourceMetadata metadata = 1 [(buf.validate.field).required = true];
+  common.v1.ResourceMetadata metadata = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      parent_resource: ["project"]
+    }
+  ];
 
   EndpointSpec spec = 2 [(buf.validate.field).required = true];
 
diff --git a/nebius/ai/v1/job.proto b/nebius/ai/v1/job.proto
index 7ce769d..7589b38 100644
--- a/nebius/ai/v1/job.proto
+++ b/nebius/ai/v1/job.proto
@@ -17,7 +17,12 @@ option java_package = "ai.nebius.pub.ai.v1";
 
 // Represents a job with a specified workload.
 message Job {
-  common.v1.ResourceMetadata metadata = 1 [(buf.validate.field).required = true];
+  common.v1.ResourceMetadata metadata = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      parent_resource: ["project"]
+    }
+  ];
 
   JobSpec spec = 2 [(buf.validate.field).required = true];
 
diff --git a/nebius/ai/v1/job_service.proto b/nebius/ai/v1/job_service.proto
index 45576cb..cff39b2 100644
--- a/nebius/ai/v1/job_service.proto
+++ b/nebius/ai/v1/job_service.proto
@@ -46,13 +46,23 @@ message GetJobRequest {
 }
 
 message GetJobByNameRequest {
-  string parent_id = 1 [(buf.validate.field).required = true];
+  string parent_id = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      resource: ["project"]
+    }
+  ];
 
   string name = 2 [(buf.validate.field).required = true];
 }
 
 message ListJobsRequest {
-  string parent_id = 1 [(buf.validate.field).required = true];
+  string parent_id = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      resource: ["project"]
+    }
+  ];
 
   int64 page_size = 2;
 
@@ -60,7 +70,12 @@ message ListJobsRequest {
 }
 
 message CreateJobRequest {
-  common.v1.ResourceMetadata metadata = 1 [(buf.validate.field).required = true];
+  common.v1.ResourceMetadata metadata = 1 [
+    (buf.validate.field).required = true,
+    (nid) = {
+      parent_resource: ["project"]
+    }
+  ];
 
   JobSpec spec = 2 [(buf.validate.field).required = true];
 
diff --git a/nebius/mk8s/v1/node_group.proto b/nebius/mk8s/v1/node_group.proto
index bd7f858..88dc022 100644
--- a/nebius/mk8s/v1/node_group.proto
+++ b/nebius/mk8s/v1/node_group.proto
@@ -314,7 +314,11 @@ message NodeGroupDeploymentStrategy {
   // When specified as a percentage, the actual number is calculated by rounding down to the nearest whole number.
   // This value cannot be 0 if `max_surge` is also set to 0.
   //
-  // Defaults to 0.
+  // On 2026-08-01, defaults to 0.
+  // IMPORTANT: starting from Q3 2026 new default is 1;
+  // for new clusters it will default to 1,
+  // node groups in existing clusters will be gradually migrated during Q3 to the default of 1 as well.
+  // To get the actual value for your node group, please see 'strategy' in its status.
   //
   // Example: If set to 20%, up to 20% of the nodes can be taken offline at once during the update,
   // ensuring that at least 80% of the desired nodes remain operational.
@@ -328,7 +332,11 @@ message NodeGroupDeploymentStrategy {
   // When specified as a percentage, the actual number is calculated by rounding up to the nearest whole number.
   // This value cannot be 0 if `max_unavailable` is also set to 0.
   //
-  // Defaults to 1.
+  // On 2026-08-01, defaults to 1.
+  // IMPORTANT: starting from Q3 2026 new default is 0;
+  // for new clusters it will default to 0,
+  // node groups in existing clusters will be gradually migrated during Q3 to the default of 0 as well.
+  // To get the actual value for your node group, please see 'strategy' in its status.
   //
   // Example: If set to 25%, the node group can scale up by an additional 25% during the update,
   // allowing new nodes to be added before old nodes are removed, which helps minimize workload disruption.
@@ -343,10 +351,16 @@ message NodeGroupDeploymentStrategy {
 
   // Maximum amount of time that the service will spend attempting to gracefully drain a node
   // (evicting its pods) before falling back to pod deletion.
-  // A value of 0 (or when field is omitted) means no timeout: the node can be drained for an unlimited time.
+  // A value of 0 means no timeout: the node can be drained for an unlimited time.
   // Important consequence of that is if PodDisruptionBudget doesn't allow evicting a pod,
   // then NodeGroup update with node re-creation will hang on that pod eviction.
   // Note that this is different from `kubectl drain --timeout`, which gives up and returns an error.
+  //
+  // On 2026-08-01, defaults to 0.
+  // IMPORTANT: starting from Q3 2026 new default is 10m;
+  // for new clusters it will default to 10m,
+  // node groups in existing clusters will be gradually migrated during Q3 to the default of 10m as well.
+  // To get the actual value for your node group, please see 'strategy' in its status.
   google.protobuf.Duration drain_timeout = 3 [(buf.validate.field) = {
     duration: {
       gte: {}