Add standalone activities namespace capability

openapi/openapiv2.json

@@ -13150,6 +13150,10 @@
         "workflowPause": {
           "type": "boolean",
           "title": "True if the namespace supports pausing workflows"
+        },
+        "standaloneActivities": {
+          "type": "boolean",
+          "title": "True if the namespace supports standalone activities"
         }
       },
       "description": "Namespace capability details. Should contain what features are enabled in a namespace."

openapi/openapiv3.yaml

@@ -10262,6 +10262,9 @@ components:
         workflowPause:
           type: boolean
           description: True if the namespace supports pausing workflows
+        standaloneActivities:
+          type: boolean
+          description: True if the namespace supports standalone activities
       description: Namespace capability details. Should contain what features are enabled in a namespace.
     NamespaceInfo_Limits:
       type: object

temporal/api/namespace/v1/message.proto

@@ -40,6 +40,8 @@ message NamespaceInfo {
         bool reported_problems_search_attribute = 5;
         // True if the namespace supports pausing workflows
         bool workflow_pause = 6;
+        // True if the namespace supports standalone activities
+        bool standalone_activities = 7;
     }
 
     // Namespace configured limits