diff --git a/src/components/queue/job/useJobErrorReporting.ts b/src/components/queue/job/useJobErrorReporting.ts
index 7464ada16..30eca078f 100644
--- a/src/components/queue/job/useJobErrorReporting.ts
+++ b/src/components/queue/job/useJobErrorReporting.ts
@@ -15,17 +15,6 @@ export type JobErrorDialogService = {
   ) => void
 }
 
-/**
- * Extracts error message from a task.
- * Returns the simple error_message string from the jobs API.
- *
- * Note: Detailed execution errors (with traceback, node info, etc.) are only
- * available via WebSocket during live execution. Historical job errors only
- * have the simple error_message string.
- */
-export const extractErrorMessage = (task: TaskItemImpl | null): string | null =>
-  task?.errorMessage ?? null
-
 type UseJobErrorReportingOptions = {
   taskForJob: ComputedRef<TaskItemImpl | null>
   copyToClipboard: CopyHandler
@@ -37,9 +26,7 @@ export const useJobErrorReporting = ({
   copyToClipboard,
   dialog
 }: UseJobErrorReportingOptions) => {
-  const errorMessageValue = computed(
-    () => extractErrorMessage(taskForJob.value) ?? ''
-  )
+  const errorMessageValue = computed(() => taskForJob.value?.errorMessage ?? '')
 
   const copyErrorMessage = () => {
     if (errorMessageValue.value) {
diff --git a/tests-ui/tests/components/queue/useJobErrorReporting.test.ts b/tests-ui/tests/components/queue/useJobErrorReporting.test.ts
index 9b32d198e..17936b9cd 100644
--- a/tests-ui/tests/components/queue/useJobErrorReporting.test.ts
+++ b/tests-ui/tests/components/queue/useJobErrorReporting.test.ts
@@ -4,41 +4,18 @@ import type { ComputedRef } from 'vue'
 
 import type { TaskItemImpl } from '@/stores/queueStore'
 import type { JobErrorDialogService } from '@/components/queue/job/useJobErrorReporting'
-import * as jobErrorReporting from '@/components/queue/job/useJobErrorReporting'
+import { useJobErrorReporting } from '@/components/queue/job/useJobErrorReporting'
 
-/**
- * Creates a mock TaskItemImpl with an error message.
- */
 const createTaskWithError = (errorMessage?: string): TaskItemImpl =>
   ({ errorMessage }) as unknown as TaskItemImpl
 
-describe('extractErrorMessage', () => {
-  it('returns null when task is null', () => {
-    expect(jobErrorReporting.extractErrorMessage(null)).toBeNull()
-  })
-
-  it('returns null when errorMessage is undefined', () => {
-    expect(
-      jobErrorReporting.extractErrorMessage(createTaskWithError())
-    ).toBeNull()
-  })
-
-  it('returns the error message when present', () => {
-    expect(
-      jobErrorReporting.extractErrorMessage(
-        createTaskWithError('Something failed')
-      )
-    ).toBe('Something failed')
-  })
-})
-
 describe('useJobErrorReporting', () => {
   let taskState = ref<TaskItemImpl | null>(null)
   let taskForJob: ComputedRef<TaskItemImpl | null>
   let copyToClipboard: ReturnType<typeof vi.fn>
   let showErrorDialog: ReturnType<typeof vi.fn>
   let dialog: JobErrorDialogService
-  let composable: ReturnType<typeof jobErrorReporting.useJobErrorReporting>
+  let composable: ReturnType<typeof useJobErrorReporting>
 
   beforeEach(() => {
     taskState = ref<TaskItemImpl | null>(null)
@@ -46,7 +23,7 @@ describe('useJobErrorReporting', () => {
     copyToClipboard = vi.fn()
     showErrorDialog = vi.fn()
     dialog = { showErrorDialog }
-    composable = jobErrorReporting.useJobErrorReporting({
+    composable = useJobErrorReporting({
       taskForJob,
       copyToClipboard,
       dialog