diff --git a/openapi/openapiv2.json b/openapi/openapiv2.json
index ddbc48c61..9490580bc 100644
--- a/openapi/openapiv2.json
+++ b/openapi/openapiv2.json
@@ -14588,6 +14588,10 @@
         "pollerScalingDecision": {
           "$ref": "#/definitions/v1PollerScalingDecision",
           "description": "Server-advised information the SDK may use to adjust its poller count."
+        },
+        "pollerGroupId": {
+          "type": "string",
+          "description": "This poller group ID identifies the owner of the workflow task."
         }
       }
     },
diff --git a/openapi/openapiv3.yaml b/openapi/openapiv3.yaml
index cd503dccd..f9fc7d2fc 100644
--- a/openapi/openapiv3.yaml
+++ b/openapi/openapiv3.yaml
@@ -11647,6 +11647,9 @@ components:
           allOf:
             - $ref: '#/components/schemas/PollerScalingDecision'
           description: Server-advised information the SDK may use to adjust its poller count.
+        pollerGroupId:
+          type: string
+          description: This poller group ID identifies the owner of the workflow task.
     PollerInfo:
       type: object
       properties:
diff --git a/temporal/api/workflowservice/v1/request_response.proto b/temporal/api/workflowservice/v1/request_response.proto
index 2d9dd7b83..08c0a3dfa 100644
--- a/temporal/api/workflowservice/v1/request_response.proto
+++ b/temporal/api/workflowservice/v1/request_response.proto
@@ -331,6 +331,8 @@ message PollWorkflowTaskQueueResponse {
     repeated temporal.api.protocol.v1.Message messages = 15;
     // Server-advised information the SDK may use to adjust its poller count.
     temporal.api.taskqueue.v1.PollerScalingDecision poller_scaling_decision = 16;
+    // This poller group ID identifies the owner of the workflow task.
+    string poller_group_id = 17;
 }
 
 message RespondWorkflowTaskCompletedRequest {
@@ -1028,6 +1030,9 @@ message RespondQueryTaskCompletedRequest {
     // Why did the task fail? It's important to note that many of the variants in this enum cannot
     // apply to worker responses. See the type's doc for more.
     temporal.api.enums.v1.WorkflowTaskFailedCause cause = 8;
+    // This poller group ID identifies the owner of the query task.
+    // This Id should be set in the request header.
+    string poller_group_id = 9;
 }
 
 message RespondQueryTaskCompletedResponse {
@@ -1892,6 +1897,9 @@ message PollNexusTaskQueueResponse {
     temporal.api.nexus.v1.Request request = 2;
     // Server-advised information the SDK may use to adjust its poller count.
     temporal.api.taskqueue.v1.PollerScalingDecision poller_scaling_decision = 3;
+    // This poller group ID identifies the owner of the nexus task.
+    // This Id should be set in RespondNexusTaskCompletedRequest or RespondNexusTaskFailedRequest.
+    string poller_group_id = 4;
 }
 
 message RespondNexusTaskCompletedRequest {
@@ -1902,6 +1910,9 @@ message RespondNexusTaskCompletedRequest {
     bytes task_token = 3;
     // Embedded response to be translated into a frontend response.
     temporal.api.nexus.v1.Response response = 4;
+    // This poller group ID identifies the owner of the nexus task.
+    // This Id should be set in the request header.
+    string poller_group_id = 5;
 }
 
 message RespondNexusTaskCompletedResponse {
@@ -1917,6 +1928,9 @@ message RespondNexusTaskFailedRequest {
     temporal.api.nexus.v1.HandlerError error = 4 [deprecated = true];
     // The error the handler failed with. Must contain a NexusHandlerFailureInfo object.
     temporal.api.failure.v1.Failure failure = 5;
+    // This poller group ID identifies the owner of the nexus task.
+    // This Id should be set in the request header.
+    string poller_group_id = 6;
 }
 
 message RespondNexusTaskFailedResponse {
diff --git a/temporal/api/workflowservice/v1/service.proto b/temporal/api/workflowservice/v1/service.proto
index cbd71e2ba..84214abdf 100644
--- a/temporal/api/workflowservice/v1/service.proto
+++ b/temporal/api/workflowservice/v1/service.proto
@@ -618,7 +618,12 @@ service WorkflowService {
     //
     // (-- api-linter: core::0127::http-annotation=disabled
     //     aip.dev/not-precedent: We do not expose worker API to HTTP. --)
-    rpc RespondQueryTaskCompleted (RespondQueryTaskCompletedRequest) returns (RespondQueryTaskCompletedResponse) {}
+    rpc RespondQueryTaskCompleted (RespondQueryTaskCompletedRequest) returns (RespondQueryTaskCompletedResponse) {
+        option (temporal.api.protometa.v1.request_header) = {
+            header: "temporal-resource-id"
+            value: "poller:{poller_group_id}"
+        };
+    }
 
     // ResetStickyTaskQueue resets the sticky task queue related information in the mutable state of
     // a given workflow. This is prudent for workers to perform if a workflow has been paged out of
@@ -1246,12 +1251,20 @@ service WorkflowService {
     // (-- api-linter: core::0127::http-annotation=disabled
     //     aip.dev/not-precedent: We do not expose worker API to HTTP. --)
     rpc RespondNexusTaskCompleted(RespondNexusTaskCompletedRequest) returns (RespondNexusTaskCompletedResponse) {
+        option (temporal.api.protometa.v1.request_header) = {
+            header: "temporal-resource-id"
+            value: "poller:{poller_group_id}"
+        };
     }
 
     // RespondNexusTaskFailed is called by workers to fail Nexus tasks received via PollNexusTaskQueue.
     // (-- api-linter: core::0127::http-annotation=disabled
     //     aip.dev/not-precedent: We do not expose worker API to HTTP. --)
     rpc RespondNexusTaskFailed(RespondNexusTaskFailedRequest) returns (RespondNexusTaskFailedResponse) {
+        option (temporal.api.protometa.v1.request_header) = {
+            header: "temporal-resource-id"
+            value: "poller:{poller_group_id}"
+        };
     }
 
     // UpdateActivityOptions is called by the client to update the options of an activity by its ID or type.