Corrected the place where the task name is generated, it's now part of the capability editor rather than bespoke code.

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

@@ -1,19 +1,18 @@
 import React from "react";
-import templateVersionsService, {
-  TaskMetadata,
-} from "../services/WorkflowTemplateService";
+import { TaskMetadata } from "../services/WorkflowTemplateService";
 import { useTranslation } from "react-i18next";
 import { Namespaces } from "../../../../i18n/i18n";
 
 interface AddTaskButtonProps {
-  taskType: string;
+  allowedTasks: TaskMetadata[];
   onAdd: (selectedType: TaskMetadata) => void;
 }
 
-const AddTaskButton: React.FC<AddTaskButtonProps> = ({ taskType, onAdd }) => {
+const AddTaskButton: React.FC<AddTaskButtonProps> = ({
+  allowedTasks,
+  onAdd,
+}) => {
   const [open, setOpen] = React.useState(false);
-  const [items, setItems] = React.useState<TaskMetadata[]>([]);
-  const [loading, setLoading] = React.useState(false);
 
   const { t: tTaskType } = useTranslation(Namespaces.TaskTypes);
   const { t } = useTranslation(Namespaces.Common);
@@ -21,17 +20,6 @@ const AddTaskButton: React.FC<AddTaskButtonProps> = ({ taskType, onAdd }) => {
   const toggle = async () => {
     const next = !open;
     setOpen(next);
-
-    // Fetch only when opening AND only once
-    if (next && items.length === 0) {
-      setLoading(true);
-      try {
-        const meta = await templateVersionsService.getTaskMetadata(taskType);
-        setItems(meta);
-      } finally {
-        setLoading(false);
-      }
-    }
   };
 
   return (
@@ -42,21 +30,18 @@ const AddTaskButton: React.FC<AddTaskButtonProps> = ({ taskType, onAdd }) => {
 
       {open && (
         <div className="dropdown-menu show">
-          {loading && <div className="dropdown-item">{t("Loading")}</div>}
-
-          {!loading &&
-            items.map((item) => (
-              <button
-                key={item.taskType}
-                className="dropdown-item"
-                onClick={() => {
-                  onAdd(item);
-                  setOpen(false);
-                }}
-              >
-                {tTaskType(item.displayName)}
-              </button>
-            ))}
+          {allowedTasks.map((item) => (
+            <button
+              key={item.taskType}
+              className="dropdown-item"
+              onClick={() => {
+                onAdd(item);
+                setOpen(false);
+              }}
+            >
+              {tTaskType(item.displayName)}
+            </button>
+          ))}
         </div>
       )}
     </div>

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

@@ -1,12 +1,18 @@
 import { useCallback, useEffect, useRef, useState } from "react";
 import { InputType } from "../../../../../components/common/Input";
-import { TaskDefinition } from "../../services/WorkflowTemplateService";
+import {
+  TaskDefinition,
+  TaskMetadata,
+} from "../../services/WorkflowTemplateService";
 import { renderTaskField } from "../taskEditorHelpers";
 import { TaskValidationResult } from "../TasksEditor";
+import { Namespaces } from "../../../../../i18n/i18n";
+import { useTranslation } from "react-i18next";
 
 interface TaskCoreEditorProps {
   task: TaskDefinition;
   allTasks: TaskDefinition[];
+  allowedTasks: TaskMetadata[];
   onChange: (updated: TaskDefinition) => void;
   onValidate: (result: TaskValidationResult) => void;
 }
@@ -14,22 +20,62 @@ interface TaskCoreEditorProps {
 export const TaskCoreEditor: React.FC<TaskCoreEditorProps> = ({
   task,
   allTasks,
+  allowedTasks,
   onChange,
   onValidate,
 }) => {
+  const { t: tTaskType } = useTranslation(Namespaces.TaskTypes);
   const [fieldErrors, setFieldErrors] = useState<Record<string, string>>({});
   const prevErrorsRef = useRef<Record<string, string>>({});
 
+  const formatNewTaskName = (
+    tasks: TaskDefinition<Record<string, unknown>>[],
+  ) => {
+    const displayName = allowedTasks.find(
+      (t) => t.taskType === task.type,
+    )?.displayName;
+
+    return `${tTaskType(displayName!)} ${tasks.length + 1}`;
+  };
+
   const runValidation = useCallback(() => {
     const errors: Record<string, string> = {};
 
-    if (!task.config.description) {
-      errors["description"] = "Description cannot be empty";
+    //If the task doesn't have a name (can happen when adding a new task), generate a default one.
+    if (task.config.name === undefined) {
+      task.config.name = formatNewTaskName(allTasks);
+    }
+
+    if (!task.config.name || (task.config.name as string).trim() === "") {
+      errors["name"] = "Name cannot be empty";
+    }
+
+    if (task.config.name) {
+      // Name must be unique across all tasks
+      const duplicate = allTasks.find(
+        (t) =>
+          (t.config.guid as string) !== (task.config.guid as string) && // exclude self
+          (t.config.name as string).trim().toLowerCase() ===
+            (task.config.name as string).trim().toLowerCase(),
+      );
+
+      if (duplicate) {
+        errors["name"] = "Name must be unique.";
+      }
+    }
+
+    const descriptionMaxLength = 5000;
+    if (
+      task.config.description &&
+      (task.config.description as string).length >= descriptionMaxLength
+    ) {
+      errors["description"] =
+        `Description can be up to ${descriptionMaxLength} characters long.`;
     }
 
     const isValid = Object.keys(errors).length === 0;
     return { errors, isValid };
-  }, [task.config.description]);
+  }, [allTasks, task.config.description, task.config.guid, task.config.name]);
 
   //Validate when task changes.
   useEffect(() => {

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

@@ -13,7 +13,7 @@ import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
 interface TaskListProps {
   tasks: TaskDefinition[];
   validTasksList: Record<string, boolean>;
-  taskType: string;
+  allowedTasks: TaskMetadata[];
   onChange: (tasks: TaskDefinition[]) => void;
   selectedTask: TaskDefinition | null;
   onSelectTask: (task: TaskDefinition | null) => void;
@@ -22,28 +22,16 @@ interface TaskListProps {
 const TaskList: React.FC<TaskListProps> = ({
   tasks,
   validTasksList,
-  taskType,
+  allowedTasks,
   onChange,
   selectedTask,
   onSelectTask,
 }) => {
-  const { t: tTaskType } = useTranslation(Namespaces.TaskTypes);
-
-  const formatNewTaskName = (
-    displayName: string,
-    tasks: TaskDefinition<Record<string, unknown>>[],
-  ) => {
-    return `${tTaskType(displayName)} ${tasks.length + 1}`;
-  };
-
   const handleAddTask = (selectedType: TaskMetadata) => {
-    const formattedName = formatNewTaskName(selectedType.displayName, tasks);
-
     const newTask: TaskDefinition = {
       type: selectedType.taskType,
 
       config: {
-        name: formattedName,
         guid: crypto.randomUUID(),
       },
     };
@@ -56,7 +44,7 @@ const TaskList: React.FC<TaskListProps> = ({
 
   return (
     <div>
-      <AddTaskButton taskType={taskType} onAdd={handleAddTask} />
+      <AddTaskButton allowedTasks={allowedTasks} onAdd={handleAddTask} />
 
       <SelectableList
         items={tasks}

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

@@ -10,6 +10,7 @@ export interface TaskValidationResult {
 interface TaskEditorProps {
   task: TaskDefinition;
   allTasks: TaskDefinition[];
+  allowedTasks: TaskMetadata[];
   onChange: (updatedTask: TaskDefinition) => void;
   onValidate: (taskId: string, isValid: boolean) => void;
 }
@@ -17,6 +18,7 @@ interface TaskEditorProps {
 export const TaskEditor: React.FC<TaskEditorProps> = ({
   task,
   allTasks,
+  allowedTasks,
   onChange,
   onValidate,
 }) => {
@@ -43,6 +45,7 @@ export const TaskEditor: React.FC<TaskEditorProps> = ({
     <>
       <TaskCoreEditor
         task={task}
+        allowedTasks={allowedTasks}
         allTasks={allTasks}
         onChange={onChange}
         onValidate={(result) => onCapabilityValidate("core", result)}

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

@@ -1,7 +1,8 @@
 import React, { useEffect, useState } from "react";
-import {
+import templateVersionsService, {
   CreateWorkflowTemplateVersion,
   TaskDefinition,
+  TaskMetadata,
 } from "../services/WorkflowTemplateService";
 import TaskList from "./TaskList";
 import { TaskEditor } from "./TasksEditor";
@@ -25,6 +26,16 @@ const TasksTab: React.FC<TasksTabProps> = ({
 }) => {
   const tasks = data.tasks;
   const [selectedTask, setSelectedTask] = useState<TaskDefinition | null>(null);
+  const [allowedTasks, setAllowedTasks] = React.useState<TaskMetadata[]>([]);
+
+  useEffect(() => {
+    const fetchTaskMetadata = async () => {
+      const meta = await templateVersionsService.getTaskMetadata("GeneralTask");
+      setAllowedTasks(meta);
+    };
+
+    fetchTaskMetadata();
+  }, []);
 
   useEffect(() => {
     if (tasks.length === 0) {
@@ -91,7 +102,7 @@ const TasksTab: React.FC<TasksTabProps> = ({
         <TaskList
           tasks={tasks}
           validTasksList={taskValidation}
-          taskType="GeneralTask"
+          allowedTasks={allowedTasks}
           onChange={handleTasksChange}
           selectedTask={selectedTask}
           onSelectTask={setSelectedTask}
@@ -99,6 +110,7 @@ const TasksTab: React.FC<TasksTabProps> = ({
       </div>
       {selectedTask && (
         <TaskEditor
+          allowedTasks={allowedTasks}
           task={selectedTask}
           allTasks={tasks}
           onChange={(updatedTask) => {