New tasks properly marked as valid or invalid when added in a stage.

src/modules/manager/workflowTemplates/components/CapabilityEditors/StageOfGeneralTaskEditor.tsx

@@ -16,7 +16,7 @@ import {
 export const StageOfGeneralTaskEditor: React.FC<CapabilityEditorProps> = (
   props,
 ) => {
-  const { task, onChange, onValidate, fieldErrors } = props;
+  const { task, onChange, onValidate, onValidateTask, fieldErrors } = props;
 
   const [tasksMetadata, setTasksMetadata] = React.useState<TaskMetadata[]>([]);
 
@@ -52,6 +52,9 @@ export const StageOfGeneralTaskEditor: React.FC<CapabilityEditorProps> = (
 
     const isValid = Object.keys(errors).length === 0;
 
+    // Mark the child task as valid/invalid
+    onValidateTask?.(newTask.config.guid as string, isValid);
+
     task.config.tasks = updatedTasks;
 
     onChange(task);

src/modules/manager/workflowTemplates/components/TasksEditor.tsx

@@ -106,7 +106,8 @@ const TaskEditorComponent: React.FC<TaskEditorProps> = ({
             task={task}
             tasks={tasks}
             onChange={handleTaskChange}
-            fieldErrors={fieldErrors} // ← THIS IS THE MISSING PIECE
+            fieldErrors={fieldErrors}
+            onValidateTask={onValidate}
           />
         );
       })}

src/modules/manager/workflowTemplates/components/useCapabilityDefaults.tsx

@@ -17,6 +17,7 @@ export interface CapabilityEditorProps {
   tasks: TaskDefinition[];
   onChange: (updated: TaskDefinition) => void;
   onValidate: (result: TaskValidationResult) => void;
+  onValidateTask?: (taskId: string, isValid: boolean) => void;
   fieldErrors: Record<string, string>;
 }