From d27e177d619ec583ca410afc37bdbc82190aa9c1 Mon Sep 17 00:00:00 2001
From: ric-yu <richard95yu@gmail.com>
Date: Tue, 13 Jan 2026 19:38:00 -0800
Subject: [PATCH] feat: Migrate to Jobs API (PR 2 of 3) (#7170)
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## Summary

Migrate frontend from legacy `/history`, `/history_v2`, and `/queue`
endpoints to the unified `/jobs` API with memory optimization and lazy
loading.

**This is PR 2 of 3** - Core migration, depends on PR 1.

## Changes

- **What**:
- Replace `api.getQueue()` and `api.getHistory()` implementations to use
Jobs API fetchers
- Implement lazy loading for workflow and full outputs via `/jobs/{id}`
endpoint in `useJobMenu`
- Add `TaskItemImpl` class wrapping `JobListItem` for queue store
compatibility
  - Rename `reconcileHistory` to `reconcileJobs` for clarity
- Use `execution_start_time` and `execution_end_time` from API for
execution timing
  - Use `workflowId` from job instead of nested `workflow.id`
- Update `useJobMenu` to fetch job details on demand (`openJobWorkflow`,
`exportJobWorkflow`)

- **Breaking**: Requires backend Jobs API support (ComfyUI with `/jobs`
endpoint)

## Review Focus

1. **Lazy loading in `useJobMenu`**: `openJobWorkflow` and
`exportJobWorkflow` now fetch from API on demand instead of accessing
`taskRef.workflow`
2. **`TaskItemImpl` wrapper**: Adapts `JobListItem` to existing queue
store interface
3. **Error reporting**: Uses `execution_error` field from API for rich
error dialogs
4. **Memory optimization**: Only fetches full job details when needed

## Files Changed

- `src/scripts/api.ts` - Updated `getQueue()` and `getHistory()` to use
Jobs API
- `src/stores/queueStore.ts` - Added `TaskItemImpl`, updated to use
`JobListItem`
- `src/composables/useJobMenu.ts` - Lazy loading for workflow access
- `src/composables/useJobList.ts` - Updated types
- Various test files updated

## Dependencies

- **Depends on**: PR 1 (Jobs API Infrastructure) - #7169

## Next PR

- **PR 3**: Remove legacy history code and unused types

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7170-feat-Migrate-to-Jobs-API-PR-2-of-3-2bf6d73d3650811b94f4fbe69944bba6)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Christian Byrne <cbyrne@comfy.org>
---
 browser_tests/fixtures/ComfyPage.ts           |   8 -
 src/components/queue/QueueProgressOverlay.vue |   2 +-
 .../queue/job/JobDetailsPopover.stories.ts    | 132 ++---
 src/components/queue/job/JobGroupsList.vue    |   2 +-
 .../queue/job/useJobErrorReporting.test.ts    | 180 +++---
 .../queue/job/useJobErrorReporting.ts         |   5 +-
 .../sidebar/tabs/AssetsSidebarTab.vue         | 164 ++----
 src/composables/queue/useJobList.test.ts      |  10 +-
 src/composables/queue/useJobList.ts           |   2 +-
 src/composables/queue/useJobMenu.test.ts      | 103 +++-
 src/composables/queue/useJobMenu.ts           | 109 ++--
 .../queue/useResultGallery.test.ts            | 134 +++--
 src/composables/queue/useResultGallery.ts     |  35 +-
 .../assets/composables/media/assetMappers.ts  |   1 -
 .../history/__fixtures__/historyFixtures.ts   | 380 ------------
 .../history/adapters/v2ToV1Adapter.test.ts    | 434 --------------
 .../comfyui/history/adapters/v2ToV1Adapter.ts |  74 ---
 .../history/fetchers/fetchHistoryV1.test.ts   |  52 --
 .../history/fetchers/fetchHistoryV1.ts        |  51 --
 .../history/fetchers/fetchHistoryV2.test.ts   |  41 --
 .../history/fetchers/fetchHistoryV2.ts        |  42 --
 src/platform/remote/comfyui/history/index.ts  |  29 -
 .../comfyui/history/reconciliation.test.ts    | 335 -----------
 .../remote/comfyui/history/reconciliation.ts  | 122 ----
 .../comfyui/history/types/historyV1Types.ts   |  15 -
 .../comfyui/history/types/historyV2Types.ts   |  46 --
 .../remote/comfyui/history/types/index.ts     |   9 -
 .../remote/comfyui/jobs/fetchJobs.test.ts     |  10 +-
 src/platform/remote/comfyui/jobs/fetchJobs.ts |   4 +-
 src/platform/remote/comfyui/jobs/jobTypes.ts  |  17 +-
 .../cloud/getWorkflowFromHistory.test.ts      | 124 ++--
 .../workflow/cloud/getWorkflowFromHistory.ts  |  21 -
 src/platform/workflow/cloud/index.ts          |  10 -
 src/schemas/apiSchema.ts                      | 137 +----
 src/scripts/api.ts                            | 118 ++--
 src/scripts/ui.ts                             |  34 +-
 src/services/jobOutputCache.test.ts           | 278 +++++++++
 src/services/jobOutputCache.ts                | 103 ++++
 src/stores/assetsStore.test.ts                | 225 +++----
 src/stores/assetsStore.ts                     |  34 +-
 src/stores/executionStore.ts                  |   6 +-
 src/stores/queueStore.loadWorkflow.test.ts    | 159 ++---
 src/stores/queueStore.test.ts                 | 547 +++++++++---------
 src/stores/queueStore.ts                      | 318 +++++-----
 44 files changed, 1596 insertions(+), 3066 deletions(-)
 delete mode 100644 src/platform/remote/comfyui/history/__fixtures__/historyFixtures.ts
 delete mode 100644 src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.test.ts
 delete mode 100644 src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.ts
 delete mode 100644 src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.test.ts
 delete mode 100644 src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.ts
 delete mode 100644 src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.test.ts
 delete mode 100644 src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.ts
 delete mode 100644 src/platform/remote/comfyui/history/index.ts
 delete mode 100644 src/platform/remote/comfyui/history/reconciliation.test.ts
 delete mode 100644 src/platform/remote/comfyui/history/reconciliation.ts
 delete mode 100644 src/platform/remote/comfyui/history/types/historyV1Types.ts
 delete mode 100644 src/platform/remote/comfyui/history/types/historyV2Types.ts
 delete mode 100644 src/platform/remote/comfyui/history/types/index.ts
 delete mode 100644 src/platform/workflow/cloud/getWorkflowFromHistory.ts
 delete mode 100644 src/platform/workflow/cloud/index.ts
 create mode 100644 src/services/jobOutputCache.test.ts
 create mode 100644 src/services/jobOutputCache.ts

diff --git a/browser_tests/fixtures/ComfyPage.ts b/browser_tests/fixtures/ComfyPage.ts
index 08cdd5ccea..81b482284d 100644
--- a/browser_tests/fixtures/ComfyPage.ts
+++ b/browser_tests/fixtures/ComfyPage.ts
@@ -21,7 +21,6 @@ import {
 import { Topbar } from './components/Topbar'
 import type { Position, Size } from './types'
 import { NodeReference, SubgraphSlotReference } from './utils/litegraphUtils'
-import TaskHistory from './utils/taskHistory'
 
 dotenv.config()
 
@@ -146,8 +145,6 @@ class ConfirmDialog {
 }
 
 export class ComfyPage {
-  private _history: TaskHistory | null = null
-
   public readonly url: string
   // All canvas position operations are based on default view of canvas.
   public readonly canvas: Locator
@@ -301,11 +298,6 @@ export class ComfyPage {
     }
   }
 
-  setupHistory(): TaskHistory {
-    this._history ??= new TaskHistory(this)
-    return this._history
-  }
-
   async setup({
     clearStorage = true,
     mockReleases = true
diff --git a/src/components/queue/QueueProgressOverlay.vue b/src/components/queue/QueueProgressOverlay.vue
index 78efb7a789..d6b3edcd8d 100644
--- a/src/components/queue/QueueProgressOverlay.vue
+++ b/src/components/queue/QueueProgressOverlay.vue
@@ -262,7 +262,7 @@ const focusAssetInSidebar = async (item: JobListItem) => {
 
 const inspectJobAsset = wrapWithErrorHandlingAsync(
   async (item: JobListItem) => {
-    openResultGallery(item)
+    await openResultGallery(item)
     await focusAssetInSidebar(item)
   }
 )
diff --git a/src/components/queue/job/JobDetailsPopover.stories.ts b/src/components/queue/job/JobDetailsPopover.stories.ts
index 2343a8fa22..9b79c99e50 100644
--- a/src/components/queue/job/JobDetailsPopover.stories.ts
+++ b/src/components/queue/job/JobDetailsPopover.stories.ts
@@ -1,6 +1,9 @@
 import type { Meta, StoryObj } from '@storybook/vue3-vite'
 
-import type { TaskStatus } from '@/schemas/apiSchema'
+import type {
+  JobListItem,
+  JobStatus
+} from '@/platform/remote/comfyui/jobs/jobTypes'
 import { useExecutionStore } from '@/stores/executionStore'
 import { TaskItemImpl, useQueueStore } from '@/stores/queueStore'
 
@@ -37,91 +40,86 @@ function resetStores() {
   exec.nodeProgressStatesByPrompt = {}
 }
 
+function makeTask(
+  id: string,
+  priority: number,
+  fields: Partial<JobListItem> & { status: JobStatus; create_time: number }
+): TaskItemImpl {
+  const job: JobListItem = {
+    id,
+    priority,
+    last_state_update: null,
+    update_time: fields.create_time,
+    ...fields
+  }
+  return new TaskItemImpl(job)
+}
+
 function makePendingTask(
   id: string,
-  index: number,
-  createTimeMs?: number
+  priority: number,
+  createTimeMs: number
 ): TaskItemImpl {
-  const extraData = {
-    client_id: 'c1',
-    ...(typeof createTimeMs === 'number' ? { create_time: createTimeMs } : {})
-  }
-  return new TaskItemImpl('Pending', [index, id, {}, extraData, []])
+  return makeTask(id, priority, {
+    status: 'pending',
+    create_time: createTimeMs
+  })
 }
 
 function makeRunningTask(
   id: string,
-  index: number,
-  createTimeMs?: number
+  priority: number,
+  createTimeMs: number
 ): TaskItemImpl {
-  const extraData = {
-    client_id: 'c1',
-    ...(typeof createTimeMs === 'number' ? { create_time: createTimeMs } : {})
-  }
-  return new TaskItemImpl('Running', [index, id, {}, extraData, []])
+  return makeTask(id, priority, {
+    status: 'in_progress',
+    create_time: createTimeMs
+  })
 }
 
 function makeRunningTaskWithStart(
   id: string,
-  index: number,
+  priority: number,
   startedSecondsAgo: number
 ): TaskItemImpl {
   const start = Date.now() - startedSecondsAgo * 1000
-  const status: TaskStatus = {
-    status_str: 'success',
-    completed: false,
-    messages: [['execution_start', { prompt_id: id, timestamp: start } as any]]
-  }
-  return new TaskItemImpl(
-    'Running',
-    [index, id, {}, { client_id: 'c1', create_time: start - 5000 }, []],
-    status
-  )
+  return makeTask(id, priority, {
+    status: 'in_progress',
+    create_time: start - 5000,
+    update_time: start
+  })
 }
 
 function makeHistoryTask(
   id: string,
-  index: number,
+  priority: number,
   durationSec: number,
   ok: boolean,
   errorMessage?: string
 ): TaskItemImpl {
-  const start = Date.now() - durationSec * 1000 - 1000
-  const end = start + durationSec * 1000
-  const messages: TaskStatus['messages'] = ok
-    ? [
-        ['execution_start', { prompt_id: id, timestamp: start } as any],
-        ['execution_success', { prompt_id: id, timestamp: end } as any]
-      ]
-    : [
-        ['execution_start', { prompt_id: id, timestamp: start } as any],
-        [
-          'execution_error',
-          {
-            prompt_id: id,
-            timestamp: end,
-            node_id: '1',
-            node_type: 'Node',
-            executed: [],
-            exception_message:
-              errorMessage || 'Demo error: Node failed during execution',
-            exception_type: 'RuntimeError',
-            traceback: [],
-            current_inputs: {},
-            current_outputs: {}
-          } as any
-        ]
-      ]
-  const status: TaskStatus = {
-    status_str: ok ? 'success' : 'error',
-    completed: true,
-    messages
-  }
-  return new TaskItemImpl(
-    'History',
-    [index, id, {}, { client_id: 'c1', create_time: start }, []],
-    status
-  )
+  const now = Date.now()
+  const executionEndTime = now
+  const executionStartTime = now - durationSec * 1000
+  return makeTask(id, priority, {
+    status: ok ? 'completed' : 'failed',
+    create_time: executionStartTime - 5000,
+    update_time: now,
+    execution_start_time: executionStartTime,
+    execution_end_time: executionEndTime,
+    execution_error: errorMessage
+      ? {
+          prompt_id: id,
+          timestamp: now,
+          node_id: '1',
+          node_type: 'ExampleNode',
+          exception_message: errorMessage,
+          exception_type: 'RuntimeError',
+          traceback: [],
+          current_inputs: {},
+          current_outputs: {}
+        }
+      : undefined
+  })
 }
 
 export const Queued: Story = {
@@ -140,8 +138,12 @@ export const Queued: Story = {
         makePendingTask(jobId, queueIndex, Date.now() - 90_000)
       ]
       // Add some other pending jobs to give context
-      queue.pendingTasks.push(makePendingTask('job-older-1', 100))
-      queue.pendingTasks.push(makePendingTask('job-older-2', 101))
+      queue.pendingTasks.push(
+        makePendingTask('job-older-1', 100, Date.now() - 60_000)
+      )
+      queue.pendingTasks.push(
+        makePendingTask('job-older-2', 101, Date.now() - 30_000)
+      )
 
       // Queued at (in metadata on prompt[4])
 
diff --git a/src/components/queue/job/JobGroupsList.vue b/src/components/queue/job/JobGroupsList.vue
index 482016d346..3a7c6d6af9 100644
--- a/src/components/queue/job/JobGroupsList.vue
+++ b/src/components/queue/job/JobGroupsList.vue
@@ -12,7 +12,7 @@
         v-for="ji in group.items"
         :key="ji.id"
         :job-id="ji.id"
-        :workflow-id="ji.taskRef?.workflow?.id"
+        :workflow-id="ji.taskRef?.workflowId"
         :state="ji.state"
         :title="ji.title"
         :right-text="ji.meta"
diff --git a/src/components/queue/job/useJobErrorReporting.test.ts b/src/components/queue/job/useJobErrorReporting.test.ts
index f6d0f8d360..8c8ac751ec 100644
--- a/src/components/queue/job/useJobErrorReporting.test.ts
+++ b/src/components/queue/job/useJobErrorReporting.test.ts
@@ -2,64 +2,43 @@ import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 import { computed, ref } from 'vue'
 import type { ComputedRef } from 'vue'
 
-import type { ExecutionErrorWsMessage, TaskStatus } from '@/schemas/apiSchema'
-import { TaskItemImpl } from '@/stores/queueStore'
+import type { TaskItemImpl } from '@/stores/queueStore'
 import type { JobErrorDialogService } from '@/components/queue/job/useJobErrorReporting'
 import { useJobErrorReporting } from '@/components/queue/job/useJobErrorReporting'
+import type { ExecutionError } from '@/platform/remote/comfyui/jobs/jobTypes'
 
-const createExecutionErrorMessage = (
-  overrides: Partial<ExecutionErrorWsMessage> = {}
-): ExecutionErrorWsMessage => ({
-  prompt_id: 'prompt',
-  timestamp: 100,
-  node_id: 'node-1',
-  node_type: 'KSampler',
-  executed: [],
-  exception_message: 'default failure',
-  exception_type: 'RuntimeError',
-  traceback: ['Trace line'],
-  current_inputs: {},
-  current_outputs: {},
-  ...overrides
-})
-
-/**
- * Creates a real TaskItemImpl with the given status messages.
- * Uses the actual TaskItemImpl class to test the real errorMessage/executionError getters.
- */
-function createTaskWithMessages(
-  messages: TaskStatus['messages'] = []
-): TaskItemImpl {
-  const status: TaskStatus = {
-    status_str: 'error',
-    completed: false,
-    messages
-  }
-  return new TaskItemImpl(
-    'History',
-    [0, 'test-prompt-id', {}, { client_id: 'test-client' }, []],
-    status
-  )
-}
+const createTaskWithError = (
+  promptId: string,
+  errorMessage?: string,
+  executionError?: ExecutionError,
+  createTime?: number
+): TaskItemImpl =>
+  ({
+    promptId,
+    errorMessage,
+    executionError,
+    createTime: createTime ?? Date.now()
+  }) as unknown as TaskItemImpl
 
 describe('useJobErrorReporting', () => {
   let taskState = ref<TaskItemImpl | null>(null)
   let taskForJob: ComputedRef<TaskItemImpl | null>
   let copyToClipboard: ReturnType<typeof vi.fn>
-  let showExecutionErrorDialog: ReturnType<typeof vi.fn>
   let showErrorDialog: ReturnType<typeof vi.fn>
+  let showExecutionErrorDialog: ReturnType<typeof vi.fn>
   let dialog: JobErrorDialogService
   let composable: ReturnType<typeof useJobErrorReporting>
 
   beforeEach(() => {
+    vi.clearAllMocks()
     taskState = ref<TaskItemImpl | null>(null)
     taskForJob = computed(() => taskState.value)
     copyToClipboard = vi.fn()
-    showExecutionErrorDialog = vi.fn()
     showErrorDialog = vi.fn()
+    showExecutionErrorDialog = vi.fn()
     dialog = {
-      showExecutionErrorDialog,
-      showErrorDialog
+      showErrorDialog,
+      showExecutionErrorDialog
     } as unknown as JobErrorDialogService
     composable = useJobErrorReporting({
       taskForJob,
@@ -75,81 +54,112 @@ describe('useJobErrorReporting', () => {
   })
 
   it('exposes a computed message that reflects the current task error', () => {
-    taskState.value = createTaskWithMessages([
-      [
-        'execution_error',
-        createExecutionErrorMessage({ exception_message: 'First failure' })
-      ]
-    ])
+    taskState.value = createTaskWithError('job-1', 'First failure')
     expect(composable.errorMessageValue.value).toBe('First failure')
 
-    taskState.value = createTaskWithMessages([
-      [
-        'execution_error',
-        createExecutionErrorMessage({ exception_message: 'Second failure' })
-      ]
-    ])
+    taskState.value = createTaskWithError('job-2', 'Second failure')
     expect(composable.errorMessageValue.value).toBe('Second failure')
   })
 
-  it('returns empty string when task has no error', () => {
-    taskState.value = null
+  it('returns empty string when no error message', () => {
+    taskState.value = createTaskWithError('job-1')
     expect(composable.errorMessageValue.value).toBe('')
+  })
 
-    taskState.value = createTaskWithMessages([])
+  it('returns empty string when task is null', () => {
+    taskState.value = null
     expect(composable.errorMessageValue.value).toBe('')
   })
 
   it('only calls the copy handler when a message exists', () => {
-    taskState.value = createTaskWithMessages([
-      [
-        'execution_error',
-        createExecutionErrorMessage({ exception_message: 'Clipboard failure' })
-      ]
-    ])
+    taskState.value = createTaskWithError('job-1', 'Clipboard failure')
     composable.copyErrorMessage()
     expect(copyToClipboard).toHaveBeenCalledTimes(1)
     expect(copyToClipboard).toHaveBeenCalledWith('Clipboard failure')
 
     copyToClipboard.mockClear()
-    taskState.value = createTaskWithMessages([])
+    taskState.value = createTaskWithError('job-2')
     composable.copyErrorMessage()
     expect(copyToClipboard).not.toHaveBeenCalled()
   })
 
-  it('prefers the detailed execution dialog when detail is available', () => {
-    const detail = createExecutionErrorMessage({
-      exception_message: 'Detailed failure'
-    })
-    taskState.value = createTaskWithMessages([['execution_error', detail]])
+  it('shows simple error dialog when only errorMessage present', () => {
+    taskState.value = createTaskWithError('job-1', 'Queue job error')
     composable.reportJobError()
-    expect(showExecutionErrorDialog).toHaveBeenCalledTimes(1)
-    expect(showExecutionErrorDialog).toHaveBeenCalledWith(detail)
-    expect(showErrorDialog).not.toHaveBeenCalled()
-  })
 
-  it('shows a fallback dialog when only a message is available', () => {
-    const message = 'Queue job error'
-    taskState.value = createTaskWithMessages([])
-    const valueSpy = vi
-      .spyOn(composable.errorMessageValue, 'value', 'get')
-      .mockReturnValue(message)
-
-    expect(composable.errorMessageValue.value).toBe(message)
-    composable.reportJobError()
-    expect(showExecutionErrorDialog).not.toHaveBeenCalled()
     expect(showErrorDialog).toHaveBeenCalledTimes(1)
     const [errorArg, optionsArg] = showErrorDialog.mock.calls[0]
     expect(errorArg).toBeInstanceOf(Error)
-    expect(errorArg.message).toBe(message)
+    expect(errorArg.message).toBe('Queue job error')
     expect(optionsArg).toEqual({ reportType: 'queueJobError' })
-    valueSpy.mockRestore()
+    expect(showExecutionErrorDialog).not.toHaveBeenCalled()
   })
 
-  it('does nothing when no error could be extracted', () => {
-    taskState.value = createTaskWithMessages([])
+  it('does nothing when no task exists', () => {
+    taskState.value = null
     composable.reportJobError()
+    expect(showErrorDialog).not.toHaveBeenCalled()
     expect(showExecutionErrorDialog).not.toHaveBeenCalled()
+  })
+
+  it('shows rich error dialog when execution_error available on task', () => {
+    const executionError: ExecutionError = {
+      prompt_id: 'job-1',
+      timestamp: 12345,
+      node_id: '5',
+      node_type: 'KSampler',
+      executed: ['1', '2'],
+      exception_message: 'CUDA out of memory',
+      exception_type: 'RuntimeError',
+      traceback: ['line 1', 'line 2'],
+      current_inputs: {},
+      current_outputs: {}
+    }
+    taskState.value = createTaskWithError(
+      'job-1',
+      'CUDA out of memory',
+      executionError,
+      12345
+    )
+
+    composable.reportJobError()
+
+    expect(showExecutionErrorDialog).toHaveBeenCalledTimes(1)
+    expect(showExecutionErrorDialog).toHaveBeenCalledWith(executionError)
     expect(showErrorDialog).not.toHaveBeenCalled()
   })
+
+  it('passes execution_error directly to dialog', () => {
+    const executionError: ExecutionError = {
+      prompt_id: 'job-1',
+      timestamp: 12345,
+      node_id: '5',
+      node_type: 'KSampler',
+      exception_message: 'Error',
+      exception_type: 'RuntimeError',
+      traceback: ['line 1'],
+      current_inputs: {},
+      current_outputs: {}
+    }
+    taskState.value = createTaskWithError(
+      'job-1',
+      'Error',
+      executionError,
+      12345
+    )
+
+    composable.reportJobError()
+
+    expect(showExecutionErrorDialog).toHaveBeenCalledTimes(1)
+    expect(showExecutionErrorDialog).toHaveBeenCalledWith(executionError)
+  })
+
+  it('does nothing when no error message and no execution_error', () => {
+    taskState.value = createTaskWithError('job-1')
+
+    composable.reportJobError()
+
+    expect(showErrorDialog).not.toHaveBeenCalled()
+    expect(showExecutionErrorDialog).not.toHaveBeenCalled()
+  })
 })
diff --git a/src/components/queue/job/useJobErrorReporting.ts b/src/components/queue/job/useJobErrorReporting.ts
index 01fd245a9c..b008238a62 100644
--- a/src/components/queue/job/useJobErrorReporting.ts
+++ b/src/components/queue/job/useJobErrorReporting.ts
@@ -28,9 +28,7 @@ export const useJobErrorReporting = ({
   copyToClipboard,
   dialog
 }: UseJobErrorReportingOptions) => {
-  const errorMessageValue = computed(() => {
-    return taskForJob.value?.executionError?.exception_message ?? ''
-  })
+  const errorMessageValue = computed(() => taskForJob.value?.errorMessage ?? '')
 
   const copyErrorMessage = () => {
     if (errorMessageValue.value) {
@@ -44,6 +42,7 @@ export const useJobErrorReporting = ({
       dialog.showExecutionErrorDialog(executionError)
       return
     }
+
     if (errorMessageValue.value) {
       dialog.showErrorDialog(new Error(errorMessageValue.value), {
         reportType: 'queueJobError'
diff --git a/src/components/sidebar/tabs/AssetsSidebarTab.vue b/src/components/sidebar/tabs/AssetsSidebarTab.vue
index 7da25bb8e1..c3c6fb6504 100644
--- a/src/components/sidebar/tabs/AssetsSidebarTab.vue
+++ b/src/components/sidebar/tabs/AssetsSidebarTab.vue
@@ -52,37 +52,13 @@
         class="pb-1 px-2 2xl:px-4"
         :show-generation-time-sort="activeTab === 'output'"
       />
-      <div
-        v-if="isQueuePanelV2Enabled"
-        class="flex items-center justify-between px-2 py-2 2xl:px-4"
-      >
-        <span class="text-sm text-muted-foreground">
-          {{ activeJobsLabel }}
-        </span>
-        <div class="flex items-center gap-2">
-          <span class="text-sm text-base-foreground">
-            {{ t('sideToolbar.queueProgressOverlay.clearQueueTooltip') }}
-          </span>
-          <Button
-            variant="destructive"
-            size="icon"
-            :aria-label="
-              t('sideToolbar.queueProgressOverlay.clearQueueTooltip')
-            "
-            :disabled="queuedCount === 0"
-            @click="handleClearQueue"
-          >
-            <i class="icon-[lucide--list-x] size-4" />
-          </Button>
-        </div>
-      </div>
-      <Divider v-else type="dashed" class="my-2" />
+      <Divider type="dashed" class="my-2" />
     </template>
     <template #body>
-      <div v-if="showLoadingState">
+      <div v-if="loading && !displayAssets.length">
         <ProgressSpinner class="absolute left-1/2 w-[50px] -translate-x-1/2" />
       </div>
-      <div v-else-if="showEmptyState">
+      <div v-else-if="!loading && !displayAssets.length">
         <NoResultsPlaceholder
           icon="pi pi-info-circle"
           :title="
@@ -96,15 +72,7 @@
         />
       </div>
       <div v-else class="relative size-full" @click="handleEmptySpaceClick">
-        <AssetsSidebarListView
-          v-if="isListView"
-          :assets="displayAssets"
-          :is-selected="isSelected"
-          @select-asset="handleAssetSelect"
-          @approach-end="handleApproachEnd"
-        />
         <VirtualGrid
-          v-else
           :items="mediaAssetsWithKey"
           :grid-style="{
             display: 'grid',
@@ -122,15 +90,11 @@
               :output-count="getOutputCount(item)"
               :show-delete-button="shouldShowDeleteButton"
               :open-context-menu-id="openContextMenuId"
-              :selected-assets="getSelectedAssets(displayAssets)"
-              :has-selection="hasSelection"
               @click="handleAssetSelect(item)"
               @zoom="handleZoomClick(item)"
               @output-count-click="enterFolderView(item)"
               @asset-deleted="refreshAssets"
               @context-menu-opened="openContextMenuId = item.id"
-              @bulk-download="handleBulkDownload"
-              @bulk-delete="handleBulkDelete"
             />
           </template>
         </VirtualGrid>
@@ -146,6 +110,7 @@
           <div ref="selectionCountButtonRef" class="inline-flex w-48">
             <Button
               variant="secondary"
+              size="lg"
               :class="cn(isCompact && 'text-left')"
               @click="handleDeselectAll"
             >
@@ -200,7 +165,7 @@
 
 <script setup lang="ts">
 import { useDebounceFn, useElementHover, useResizeObserver } from '@vueuse/core'
-import Divider from 'primevue/divider'
+import { Divider } from 'primevue'
 import ProgressSpinner from 'primevue/progressspinner'
 import { useToast } from 'primevue/usetoast'
 import { computed, onMounted, onUnmounted, ref, watch } from 'vue'
@@ -209,7 +174,6 @@ import { useI18n } from 'vue-i18n'
 import NoResultsPlaceholder from '@/components/common/NoResultsPlaceholder.vue'
 import VirtualGrid from '@/components/common/VirtualGrid.vue'
 import Load3dViewerContent from '@/components/load3d/Load3dViewerContent.vue'
-import AssetsSidebarListView from '@/components/sidebar/tabs/AssetsSidebarListView.vue'
 import SidebarTabTemplate from '@/components/sidebar/tabs/SidebarTabTemplate.vue'
 import ResultGallery from '@/components/sidebar/tabs/queue/ResultGallery.vue'
 import Tab from '@/components/tab/Tab.vue'
@@ -224,29 +188,19 @@ import { useMediaAssetFiltering } from '@/platform/assets/composables/useMediaAs
 import { getOutputAssetMetadata } from '@/platform/assets/schemas/assetMetadataSchema'
 import type { AssetItem } from '@/platform/assets/schemas/assetSchema'
 import { isCloud } from '@/platform/distribution/types'
-import { useSettingStore } from '@/platform/settings/settingStore'
-import { useCommandStore } from '@/stores/commandStore'
+import { getJobDetail } from '@/services/jobOutputCache'
 import { useDialogStore } from '@/stores/dialogStore'
-import { ResultItemImpl, useQueueStore } from '@/stores/queueStore'
+import { ResultItemImpl } from '@/stores/queueStore'
 import { formatDuration, getMediaTypeFromFilename } from '@/utils/formatUtil'
 import { cn } from '@/utils/tailwindUtil'
 
-const { t, n } = useI18n()
-const commandStore = useCommandStore()
-const queueStore = useQueueStore()
-const settingStore = useSettingStore()
+const { t } = useI18n()
 
 const activeTab = ref<'input' | 'output'>('output')
+const viewMode = ref<'list' | 'grid'>('grid')
 const folderPromptId = ref<string | null>(null)
 const folderExecutionTime = ref<number | undefined>(undefined)
 const isInFolderView = computed(() => folderPromptId.value !== null)
-const viewMode = ref<'list' | 'grid'>('grid')
-const isQueuePanelV2Enabled = computed(() =>
-  settingStore.get('Comfy.Queue.QPOV2')
-)
-const isListView = computed(
-  () => isQueuePanelV2Enabled.value && viewMode.value === 'list'
-)
 
 // Track which asset's context menu is open (for single-instance context menu management)
 const openContextMenuId = ref<string | null>(null)
@@ -258,6 +212,11 @@ const shouldShowDeleteButton = computed(() => {
   return true
 })
 
+const getOutputCount = (item: AssetItem): number => {
+  const count = item.user_metadata?.outputCount
+  return typeof count === 'number' && count > 0 ? count : 1
+}
+
 const shouldShowOutputCount = (item: AssetItem): boolean => {
   if (activeTab.value !== 'output' || isInFolderView.value) {
     return false
@@ -270,19 +229,6 @@ const formattedExecutionTime = computed(() => {
   return formatDuration(folderExecutionTime.value * 1000)
 })
 
-const queuedCount = computed(() => queueStore.pendingTasks.length)
-const activeJobsCount = computed(
-  () => queueStore.pendingTasks.length + queueStore.runningTasks.length
-)
-const activeJobsLabel = computed(() => {
-  const count = activeJobsCount.value
-  return t(
-    'sideToolbar.queueProgressOverlay.activeJobs',
-    { count: n(count) },
-    count
-  )
-})
-
 const toast = useToast()
 
 const inputAssets = useMediaAssets('input')
@@ -295,8 +241,6 @@ const {
   hasSelection,
   clearSelection,
   getSelectedAssets,
-  getOutputCount,
-  getTotalOutputCount,
   activate: activateSelection,
   deactivate: deactivateSelection
 } = useAssetSelection()
@@ -328,7 +272,7 @@ const isHoveringSelectionCount = useElementHover(selectionCountButtonRef)
 // Total output count for all selected assets
 const totalOutputCount = computed(() => {
   const selectedAssets = getSelectedAssets(displayAssets.value)
-  return getTotalOutputCount(selectedAssets)
+  return selectedAssets.reduce((sum, asset) => sum + getOutputCount(asset), 0)
 })
 
 const currentAssets = computed(() =>
@@ -359,20 +303,6 @@ const displayAssets = computed(() => {
   return filteredAssets.value
 })
 
-const showLoadingState = computed(
-  () =>
-    loading.value &&
-    displayAssets.value.length === 0 &&
-    (!isListView.value || activeJobsCount.value === 0)
-)
-
-const showEmptyState = computed(
-  () =>
-    !loading.value &&
-    displayAssets.value.length === 0 &&
-    (!isListView.value || activeJobsCount.value === 0)
-)
-
 watch(displayAssets, (newAssets) => {
   if (currentGalleryAssetId.value && galleryActiveIndex.value !== -1) {
     const newIndex = newAssets.findIndex(
@@ -471,16 +401,16 @@ const handleZoomClick = (asset: AssetItem) => {
   }
 }
 
-const enterFolderView = (asset: AssetItem) => {
+const enterFolderView = async (asset: AssetItem) => {
   const metadata = getOutputAssetMetadata(asset.user_metadata)
   if (!metadata) {
     console.warn('Invalid output asset metadata')
     return
   }
 
-  const { promptId, allOutputs, executionTimeInSeconds } = metadata
+  const { promptId, allOutputs, executionTimeInSeconds, outputCount } = metadata
 
-  if (!promptId || !Array.isArray(allOutputs) || allOutputs.length === 0) {
+  if (!promptId) {
     console.warn('Missing required folder view data')
     return
   }
@@ -488,7 +418,49 @@ const enterFolderView = (asset: AssetItem) => {
   folderPromptId.value = promptId
   folderExecutionTime.value = executionTimeInSeconds
 
-  folderAssets.value = allOutputs.map((output) => ({
+  // Determine which outputs to display
+  let outputsToDisplay = allOutputs ?? []
+
+  // If outputCount indicates more outputs than we have, fetch full outputs
+  const needsFullOutputs =
+    typeof outputCount === 'number' &&
+    outputCount > 1 &&
+    outputsToDisplay.length < outputCount
+
+  if (needsFullOutputs) {
+    const jobDetail = await getJobDetail(promptId)
+    if (jobDetail?.outputs) {
+      // Convert job outputs to ResultItemImpl array
+      outputsToDisplay = Object.entries(jobDetail.outputs).flatMap(
+        ([nodeId, nodeOutputs]) =>
+          Object.entries(nodeOutputs).flatMap(([mediaType, items]) =>
+            (
+              items as Array<{
+                filename: string
+                subfolder: string
+                type: string
+              }>
+            )
+              .map(
+                (item) =>
+                  new ResultItemImpl({
+                    ...item,
+                    nodeId,
+                    mediaType
+                  })
+              )
+              .filter((r) => r.supportsPreview)
+          )
+      )
+    }
+  }
+
+  if (outputsToDisplay.length === 0) {
+    console.warn('No outputs available for folder view')
+    return
+  }
+
+  folderAssets.value = outputsToDisplay.map((output) => ({
     id: `${output.nodeId}-${output.filename}`,
     name: output.filename,
     size: 0,
@@ -563,20 +535,6 @@ const handleDeleteSelected = async () => {
   clearSelection()
 }
 
-const handleBulkDownload = (assets: AssetItem[]) => {
-  downloadMultipleAssets(assets)
-  clearSelection()
-}
-
-const handleBulkDelete = async (assets: AssetItem[]) => {
-  await deleteMultipleAssets(assets)
-  clearSelection()
-}
-
-const handleClearQueue = async () => {
-  await commandStore.execute('Comfy.ClearPendingTasks')
-}
-
 const handleApproachEnd = useDebounceFn(async () => {
   if (
     activeTab.value === 'output' &&
diff --git a/src/composables/queue/useJobList.test.ts b/src/composables/queue/useJobList.test.ts
index 2e453bcf10..a2a061f784 100644
--- a/src/composables/queue/useJobList.test.ts
+++ b/src/composables/queue/useJobList.test.ts
@@ -16,7 +16,7 @@ type TestTask = {
   executionTime?: number
   executionEndTimestamp?: number
   createTime?: number
-  workflow?: { id?: string }
+  workflowId?: string
 }
 
 const translations: Record<string, string> = {
@@ -161,7 +161,7 @@ const createTask = (
   executionTime: overrides.executionTime,
   executionEndTimestamp: overrides.executionEndTimestamp,
   createTime: overrides.createTime,
-  workflow: overrides.workflow
+  workflowId: overrides.workflowId
 })
 
 const mountUseJobList = () => {
@@ -305,7 +305,7 @@ describe('useJobList', () => {
     expect(vi.getTimerCount()).toBe(0)
   })
 
-  it('sorts all tasks by queue index descending', async () => {
+  it('sorts all tasks by priority descending', async () => {
     queueStoreMock.pendingTasks = [
       createTask({ promptId: 'p', queueIndex: 1, mockState: 'pending' })
     ]
@@ -360,13 +360,13 @@ describe('useJobList', () => {
         promptId: 'wf-1',
         queueIndex: 2,
         mockState: 'pending',
-        workflow: { id: 'workflow-1' }
+        workflowId: 'workflow-1'
       }),
       createTask({
         promptId: 'wf-2',
         queueIndex: 1,
         mockState: 'pending',
-        workflow: { id: 'workflow-2' }
+        workflowId: 'workflow-2'
       })
     ]
 
diff --git a/src/composables/queue/useJobList.ts b/src/composables/queue/useJobList.ts
index 47996636be..724b74ae2e 100644
--- a/src/composables/queue/useJobList.ts
+++ b/src/composables/queue/useJobList.ts
@@ -238,7 +238,7 @@ export function useJobList() {
       const activeId = workflowStore.activeWorkflow?.activeState?.id
       if (!activeId) return []
       entries = entries.filter(({ task }) => {
-        const wid = task.workflow?.id
+        const wid = task.workflowId
         return !!wid && wid === activeId
       })
     }
diff --git a/src/composables/queue/useJobMenu.test.ts b/src/composables/queue/useJobMenu.test.ts
index ff4100918f..b6bf89961c 100644
--- a/src/composables/queue/useJobMenu.test.ts
+++ b/src/composables/queue/useJobMenu.test.ts
@@ -60,10 +60,12 @@ vi.mock('@/platform/workflow/management/stores/workflowStore', () => ({
 
 const interruptMock = vi.fn()
 const deleteItemMock = vi.fn()
+const fetchApiMock = vi.fn()
 vi.mock('@/scripts/api', () => ({
   api: {
     interrupt: (...args: any[]) => interruptMock(...args),
-    deleteItem: (...args: any[]) => deleteItemMock(...args)
+    deleteItem: (...args: any[]) => deleteItemMock(...args),
+    fetchApi: (...args: any[]) => fetchApiMock(...args)
   }
 }))
 
@@ -73,6 +75,7 @@ vi.mock('@/scripts/utils', () => ({
 }))
 
 const dialogServiceMock = {
+  showErrorDialog: vi.fn(),
   showExecutionErrorDialog: vi.fn(),
   prompt: vi.fn()
 }
@@ -103,6 +106,11 @@ vi.mock('@/stores/queueStore', () => ({
   useQueueStore: () => queueStoreMock
 }))
 
+const getJobWorkflowMock = vi.fn()
+vi.mock('@/services/jobOutputCache', () => ({
+  getJobWorkflow: (...args: any[]) => getJobWorkflowMock(...args)
+}))
+
 const createAnnotatedPathMock = vi.fn()
 vi.mock('@/utils/createAnnotatedPath', () => ({
   createAnnotatedPath: (...args: any[]) => createAnnotatedPathMock(...args)
@@ -170,6 +178,8 @@ describe('useJobMenu', () => {
       LoadVideo: { id: 'LoadVideo' },
       LoadAudio: { id: 'LoadAudio' }
     }
+    // Default: no workflow available via lazy loading
+    getJobWorkflowMock.mockResolvedValue(undefined)
   })
 
   const setCurrentItem = (item: JobListItem | null) => {
@@ -179,10 +189,13 @@ describe('useJobMenu', () => {
   it('opens workflow when workflow data exists', async () => {
     const { openJobWorkflow } = mountJobMenu()
     const workflow = { nodes: [] }
-    setCurrentItem(createJobItem({ id: '55', taskRef: { workflow } }))
+    // Mock lazy loading via fetchJobDetail + extractWorkflow
+    getJobWorkflowMock.mockResolvedValue(workflow)
+    setCurrentItem(createJobItem({ id: '55' }))
 
     await openJobWorkflow()
 
+    expect(getJobWorkflowMock).toHaveBeenCalledWith('55')
     expect(workflowStoreMock.createTemporary).toHaveBeenCalledWith(
       'Job 55.json',
       workflow
@@ -257,11 +270,10 @@ describe('useJobMenu', () => {
 
   it('copies error message from failed job entry', async () => {
     const { jobMenuEntries } = mountJobMenu()
-    const error = { exception_message: 'boom' }
     setCurrentItem(
       createJobItem({
         state: 'failed',
-        taskRef: { status: { messages: [['execution_error', error]] } } as any
+        taskRef: { errorMessage: 'Something went wrong' } as any
       })
     )
 
@@ -269,31 +281,75 @@ describe('useJobMenu', () => {
     const entry = findActionEntry(jobMenuEntries.value, 'copy-error')
     await entry?.onClick?.()
 
-    expect(copyToClipboardMock).toHaveBeenCalledWith('boom')
+    expect(copyToClipboardMock).toHaveBeenCalledWith('Something went wrong')
   })
 
-  it('reports error via dialog when entry triggered', async () => {
+  it('reports error via rich dialog when execution_error available', async () => {
+    const executionError = {
+      prompt_id: 'job-1',
+      timestamp: 12345,
+      node_id: '5',
+      node_type: 'KSampler',
+      executed: ['1', '2'],
+      exception_message: 'CUDA out of memory',
+      exception_type: 'RuntimeError',
+      traceback: ['line 1', 'line 2'],
+      current_inputs: {},
+      current_outputs: {}
+    }
     const { jobMenuEntries } = mountJobMenu()
-    const error = { exception_message: 'bad', extra: 1 }
     setCurrentItem(
       createJobItem({
         state: 'failed',
-        taskRef: { status: { messages: [['execution_error', error]] } } as any
+        taskRef: {
+          errorMessage: 'CUDA out of memory',
+          executionError,
+          createTime: 12345
+        } as any
       })
     )
 
     await nextTick()
     const entry = findActionEntry(jobMenuEntries.value, 'report-error')
-    void entry?.onClick?.()
+    await entry?.onClick?.()
 
+    expect(dialogServiceMock.showExecutionErrorDialog).toHaveBeenCalledTimes(1)
     expect(dialogServiceMock.showExecutionErrorDialog).toHaveBeenCalledWith(
-      error
+      executionError
     )
+    expect(dialogServiceMock.showErrorDialog).not.toHaveBeenCalled()
+  })
+
+  it('falls back to simple error dialog when no execution_error', async () => {
+    const { jobMenuEntries } = mountJobMenu()
+    setCurrentItem(
+      createJobItem({
+        state: 'failed',
+        taskRef: { errorMessage: 'Job failed with error' } as any
+      })
+    )
+
+    await nextTick()
+    const entry = findActionEntry(jobMenuEntries.value, 'report-error')
+    await entry?.onClick?.()
+
+    expect(dialogServiceMock.showExecutionErrorDialog).not.toHaveBeenCalled()
+    expect(dialogServiceMock.showErrorDialog).toHaveBeenCalledTimes(1)
+    const [errorArg, optionsArg] =
+      dialogServiceMock.showErrorDialog.mock.calls[0]
+    expect(errorArg).toBeInstanceOf(Error)
+    expect(errorArg.message).toBe('Job failed with error')
+    expect(optionsArg).toEqual({ reportType: 'queueJobError' })
   })
 
   it('ignores error actions when message missing', async () => {
     const { jobMenuEntries } = mountJobMenu()
-    setCurrentItem(createJobItem({ state: 'failed', taskRef: { status: {} } }))
+    setCurrentItem(
+      createJobItem({
+        state: 'failed',
+        taskRef: { errorMessage: undefined } as any
+      })
+    )
 
     await nextTick()
     const copyEntry = findActionEntry(jobMenuEntries.value, 'copy-error')
@@ -302,6 +358,7 @@ describe('useJobMenu', () => {
     await reportEntry?.onClick?.()
 
     expect(copyToClipboardMock).not.toHaveBeenCalled()
+    expect(dialogServiceMock.showErrorDialog).not.toHaveBeenCalled()
     expect(dialogServiceMock.showExecutionErrorDialog).not.toHaveBeenCalled()
   })
 
@@ -477,12 +534,13 @@ describe('useJobMenu', () => {
   })
 
   it('exports workflow with default filename when prompting disabled', async () => {
+    const workflow = { foo: 'bar' }
+    getJobWorkflowMock.mockResolvedValue(workflow)
     const { jobMenuEntries } = mountJobMenu()
     setCurrentItem(
       createJobItem({
         id: '7',
-        state: 'completed',
-        taskRef: { workflow: { foo: 'bar' } }
+        state: 'completed'
       })
     )
 
@@ -502,11 +560,11 @@ describe('useJobMenu', () => {
   it('prompts for filename when setting enabled', async () => {
     settingStoreMock.get.mockReturnValue(true)
     dialogServiceMock.prompt.mockResolvedValue('custom-name')
+    getJobWorkflowMock.mockResolvedValue({})
     const { jobMenuEntries } = mountJobMenu()
     setCurrentItem(
       createJobItem({
-        state: 'completed',
-        taskRef: { workflow: {} }
+        state: 'completed'
       })
     )
 
@@ -526,12 +584,12 @@ describe('useJobMenu', () => {
   it('keeps existing json extension when exporting workflow', async () => {
     settingStoreMock.get.mockReturnValue(true)
     dialogServiceMock.prompt.mockResolvedValue('existing.json')
+    getJobWorkflowMock.mockResolvedValue({ foo: 'bar' })
     const { jobMenuEntries } = mountJobMenu()
     setCurrentItem(
       createJobItem({
         id: '42',
-        state: 'completed',
-        taskRef: { workflow: { foo: 'bar' } }
+        state: 'completed'
       })
     )
 
@@ -547,11 +605,11 @@ describe('useJobMenu', () => {
   it('abandons export when prompt cancelled', async () => {
     settingStoreMock.get.mockReturnValue(true)
     dialogServiceMock.prompt.mockResolvedValue('')
+    getJobWorkflowMock.mockResolvedValue({})
     const { jobMenuEntries } = mountJobMenu()
     setCurrentItem(
       createJobItem({
-        state: 'completed',
-        taskRef: { workflow: {} }
+        state: 'completed'
       })
     )
 
@@ -671,7 +729,12 @@ describe('useJobMenu', () => {
 
   it('returns failed menu entries with error actions', async () => {
     const { jobMenuEntries } = mountJobMenu()
-    setCurrentItem(createJobItem({ state: 'failed', taskRef: { status: {} } }))
+    setCurrentItem(
+      createJobItem({
+        state: 'failed',
+        taskRef: { errorMessage: 'Some error' } as any
+      })
+    )
 
     await nextTick()
     expect(jobMenuEntries.value.map((entry) => entry.key)).toEqual([
diff --git a/src/composables/queue/useJobMenu.ts b/src/composables/queue/useJobMenu.ts
index 38a37276ff..b4208304ee 100644
--- a/src/composables/queue/useJobMenu.ts
+++ b/src/composables/queue/useJobMenu.ts
@@ -9,14 +9,11 @@ import { useMediaAssetActions } from '@/platform/assets/composables/useMediaAsse
 import { useSettingStore } from '@/platform/settings/settingStore'
 import { useWorkflowService } from '@/platform/workflow/core/services/workflowService'
 import { useWorkflowStore } from '@/platform/workflow/management/stores/workflowStore'
-import type {
-  ExecutionErrorWsMessage,
-  ResultItem,
-  ResultItemType
-} from '@/schemas/apiSchema'
+import type { ResultItem, ResultItemType } from '@/schemas/apiSchema'
 import { api } from '@/scripts/api'
 import { downloadBlob } from '@/scripts/utils'
 import { useDialogService } from '@/services/dialogService'
+import { getJobWorkflow } from '@/services/jobOutputCache'
 import { useLitegraphService } from '@/services/litegraphService'
 import { useNodeDefStore } from '@/stores/nodeDefStore'
 import { useQueueStore } from '@/stores/queueStore'
@@ -58,7 +55,7 @@ export function useJobMenu(
   const openJobWorkflow = async (item?: JobListItem | null) => {
     const target = resolveItem(item)
     if (!target) return
-    const data = target.taskRef?.workflow
+    const data = await getJobWorkflow(target.id)
     if (!data) return
     const filename = `Job ${target.id}.json`
     const temp = workflowStore.createTemporary(filename, data)
@@ -84,31 +81,37 @@ export function useJobMenu(
 
   const copyErrorMessage = async (item?: JobListItem | null) => {
     const target = resolveItem(item)
-    if (!target) return
-    const msgs = target.taskRef?.status?.messages as any[] | undefined
-    const err = msgs?.find((m: any) => m?.[0] === 'execution_error')?.[1] as
-      | ExecutionErrorWsMessage
-      | undefined
-    const message = err?.exception_message
-    if (message) await copyToClipboard(String(message))
+    const message = target?.taskRef?.errorMessage
+    if (message) await copyToClipboard(message)
   }
 
   const reportError = (item?: JobListItem | null) => {
     const target = resolveItem(item)
     if (!target) return
-    const msgs = target.taskRef?.status?.messages as any[] | undefined
-    const err = msgs?.find((m: any) => m?.[0] === 'execution_error')?.[1] as
-      | ExecutionErrorWsMessage
-      | undefined
-    if (err) useDialogService().showExecutionErrorDialog(err)
+
+    // Use execution_error from list response if available
+    const executionError = target.taskRef?.executionError
+
+    if (executionError) {
+      useDialogService().showExecutionErrorDialog(executionError)
+      return
+    }
+
+    // Fall back to simple error dialog
+    const message = target.taskRef?.errorMessage
+    if (message) {
+      useDialogService().showErrorDialog(new Error(message), {
+        reportType: 'queueJobError'
+      })
+    }
   }
 
   // This is very magical only because it matches the respective backend implementation
   // There is or will be a better way to do this
-  const addOutputLoaderNode = async (item?: JobListItem | null) => {
-    const target = resolveItem(item)
-    if (!target) return
-    const result: ResultItemImpl | undefined = target.taskRef?.previewOutput
+  const addOutputLoaderNode = async () => {
+    const item = currentMenuItem()
+    if (!item) return
+    const result: ResultItemImpl | undefined = item.taskRef?.previewOutput
     if (!result) return
 
     let nodeType: 'LoadImage' | 'LoadVideo' | 'LoadAudio' | null = null
@@ -156,10 +159,10 @@ export function useJobMenu(
   /**
    * Trigger a download of the job's previewable output asset.
    */
-  const downloadPreviewAsset = (item?: JobListItem | null) => {
-    const target = resolveItem(item)
-    if (!target) return
-    const result: ResultItemImpl | undefined = target.taskRef?.previewOutput
+  const downloadPreviewAsset = () => {
+    const item = currentMenuItem()
+    if (!item) return
+    const result: ResultItemImpl | undefined = item.taskRef?.previewOutput
     if (!result) return
     downloadFile(result.url)
   }
@@ -167,14 +170,14 @@ export function useJobMenu(
   /**
    * Export the workflow JSON attached to the job.
    */
-  const exportJobWorkflow = async (item?: JobListItem | null) => {
-    const target = resolveItem(item)
-    if (!target) return
-    const data = target.taskRef?.workflow
+  const exportJobWorkflow = async () => {
+    const item = currentMenuItem()
+    if (!item) return
+    const data = await getJobWorkflow(item.id)
     if (!data) return
 
     const settingStore = useSettingStore()
-    let filename = `Job ${target.id}.json`
+    let filename = `Job ${item.id}.json`
 
     if (settingStore.get('Comfy.PromptFilename')) {
       const input = await useDialogService().prompt({
@@ -191,10 +194,10 @@ export function useJobMenu(
     downloadBlob(filename, blob)
   }
 
-  const deleteJobAsset = async (item?: JobListItem | null) => {
-    const target = resolveItem(item)
-    if (!target) return
-    const task = target.taskRef as TaskItemImpl | undefined
+  const deleteJobAsset = async () => {
+    const item = currentMenuItem()
+    if (!item) return
+    const task = item.taskRef as TaskItemImpl | undefined
     const preview = task?.previewOutput
     if (!task || !preview) return
 
@@ -205,8 +208,8 @@ export function useJobMenu(
     }
   }
 
-  const removeFailedJob = async (item?: JobListItem | null) => {
-    const task = resolveItem(item)?.taskRef as TaskItemImpl | undefined
+  const removeFailedJob = async () => {
+    const task = currentMenuItem()?.taskRef as TaskItemImpl | undefined
     if (!task) return
     await queueStore.delete(task)
   }
@@ -237,8 +240,8 @@ export function useJobMenu(
           icon: 'icon-[lucide--zoom-in]',
           onClick: onInspectAsset
             ? () => {
-                const current = resolveItem()
-                if (current) onInspectAsset(current)
+                const item = currentMenuItem()
+                if (item) onInspectAsset(item)
               }
             : undefined
         },
@@ -249,33 +252,33 @@ export function useJobMenu(
             'Add to current workflow'
           ),
           icon: 'icon-[comfy--node]',
-          onClick: () => addOutputLoaderNode(resolveItem())
+          onClick: addOutputLoaderNode
         },
         {
           key: 'download',
           label: st('queue.jobMenu.download', 'Download'),
           icon: 'icon-[lucide--download]',
-          onClick: () => downloadPreviewAsset(resolveItem())
+          onClick: downloadPreviewAsset
         },
         { kind: 'divider', key: 'd1' },
         {
           key: 'open-workflow',
           label: jobMenuOpenWorkflowLabel.value,
           icon: 'icon-[comfy--workflow]',
-          onClick: () => openJobWorkflow(resolveItem())
+          onClick: openJobWorkflow
         },
         {
           key: 'export-workflow',
           label: st('queue.jobMenu.exportWorkflow', 'Export workflow'),
           icon: 'icon-[comfy--file-output]',
-          onClick: () => exportJobWorkflow(resolveItem())
+          onClick: exportJobWorkflow
         },
         { kind: 'divider', key: 'd2' },
         {
           key: 'copy-id',
           label: jobMenuCopyJobIdLabel.value,
           icon: 'icon-[lucide--copy]',
-          onClick: () => copyJobId(resolveItem())
+          onClick: copyJobId
         },
         { kind: 'divider', key: 'd3' },
         ...(hasDeletableAsset
@@ -284,7 +287,7 @@ export function useJobMenu(
                 key: 'delete',
                 label: st('queue.jobMenu.deleteAsset', 'Delete asset'),
                 icon: 'icon-[lucide--trash-2]',
-                onClick: () => deleteJobAsset(resolveItem())
+                onClick: deleteJobAsset
               }
             ]
           : [])
@@ -296,33 +299,33 @@ export function useJobMenu(
           key: 'open-workflow',
           label: jobMenuOpenWorkflowFailedLabel.value,
           icon: 'icon-[comfy--workflow]',
-          onClick: () => openJobWorkflow(resolveItem())
+          onClick: openJobWorkflow
         },
         { kind: 'divider', key: 'd1' },
         {
           key: 'copy-id',
           label: jobMenuCopyJobIdLabel.value,
           icon: 'icon-[lucide--copy]',
-          onClick: () => copyJobId(resolveItem())
+          onClick: copyJobId
         },
         {
           key: 'copy-error',
           label: st('queue.jobMenu.copyErrorMessage', 'Copy error message'),
           icon: 'icon-[lucide--copy]',
-          onClick: () => copyErrorMessage(resolveItem())
+          onClick: copyErrorMessage
         },
         {
           key: 'report-error',
           label: st('queue.jobMenu.reportError', 'Report error'),
           icon: 'icon-[lucide--message-circle-warning]',
-          onClick: () => reportError(resolveItem())
+          onClick: reportError
         },
         { kind: 'divider', key: 'd2' },
         {
           key: 'delete',
           label: st('queue.jobMenu.removeJob', 'Remove job'),
           icon: 'icon-[lucide--circle-minus]',
-          onClick: () => removeFailedJob(resolveItem())
+          onClick: removeFailedJob
         }
       ]
     }
@@ -331,21 +334,21 @@ export function useJobMenu(
         key: 'open-workflow',
         label: jobMenuOpenWorkflowLabel.value,
         icon: 'icon-[comfy--workflow]',
-        onClick: () => openJobWorkflow(resolveItem())
+        onClick: openJobWorkflow
       },
       { kind: 'divider', key: 'd1' },
       {
         key: 'copy-id',
         label: jobMenuCopyJobIdLabel.value,
         icon: 'icon-[lucide--copy]',
-        onClick: () => copyJobId(resolveItem())
+        onClick: copyJobId
       },
       { kind: 'divider', key: 'd2' },
       {
         key: 'cancel-job',
         label: jobMenuCancelLabel.value,
         icon: 'icon-[lucide--x]',
-        onClick: () => cancelJob(resolveItem())
+        onClick: cancelJob
       }
     ]
   })
diff --git a/src/composables/queue/useResultGallery.test.ts b/src/composables/queue/useResultGallery.test.ts
index 21ab1462e6..8b8522a79d 100644
--- a/src/composables/queue/useResultGallery.test.ts
+++ b/src/composables/queue/useResultGallery.test.ts
@@ -1,35 +1,74 @@
-import { describe, it, expect } from 'vitest'
+import { createPinia, setActivePinia } from 'pinia'
+import { beforeEach, describe, expect, it } from 'vitest'
 
 import { useResultGallery } from '@/composables/queue/useResultGallery'
-import type { JobListItem } from '@/composables/queue/useJobList'
+import type { JobListItem as JobListViewItem } from '@/composables/queue/useJobList'
+import type { JobListItem } from '@/platform/remote/comfyui/jobs/jobTypes'
+import { ResultItemImpl, TaskItemImpl } from '@/stores/queueStore'
 
-type PreviewLike = { url: string; supportsPreview: boolean }
+const createResultItem = (
+  url: string,
+  supportsPreview = true
+): ResultItemImpl => {
+  const item = new ResultItemImpl({
+    filename: url,
+    subfolder: '',
+    type: 'output',
+    nodeId: 'node-1',
+    mediaType: supportsPreview ? 'images' : 'unknown'
+  })
+  // Override url getter for test matching
+  Object.defineProperty(item, 'url', { get: () => url })
+  Object.defineProperty(item, 'supportsPreview', { get: () => supportsPreview })
+  return item
+}
 
-const createPreview = (url: string, supportsPreview = true): PreviewLike => ({
-  url,
-  supportsPreview
+const createMockJob = (id: string, outputsCount = 1): JobListItem => ({
+  id,
+  status: 'completed',
+  create_time: Date.now(),
+  preview_output: null,
+  outputs_count: outputsCount,
+  priority: 0
 })
 
-const createTask = (preview?: PreviewLike) => ({
-  previewOutput: preview
-})
+const createTask = (
+  preview?: ResultItemImpl,
+  allOutputs?: ResultItemImpl[],
+  outputsCount = 1
+): TaskItemImpl => {
+  const job = createMockJob(
+    `task-${Math.random().toString(36).slice(2)}`,
+    outputsCount
+  )
+  const flatOutputs = allOutputs ?? (preview ? [preview] : [])
+  return new TaskItemImpl(job, {}, flatOutputs)
+}
 
-const createJobItem = (id: string, preview?: PreviewLike): JobListItem =>
+const createJobViewItem = (
+  id: string,
+  taskRef?: TaskItemImpl
+): JobListViewItem =>
   ({
     id,
     title: `Job ${id}`,
     meta: '',
     state: 'completed',
     showClear: false,
-    taskRef: preview ? { previewOutput: preview } : undefined
-  }) as JobListItem
+    taskRef
+  }) as JobListViewItem
 
 describe('useResultGallery', () => {
-  it('collects only previewable outputs and preserves their order', () => {
-    const previewable = [createPreview('p-1'), createPreview('p-2')]
+  beforeEach(() => {
+    setActivePinia(createPinia())
+  })
+
+  it('collects only previewable outputs and preserves their order', async () => {
+    const previewable = [createResultItem('p-1'), createResultItem('p-2')]
+    const nonPreviewable = createResultItem('skip-me', false)
     const tasks = [
       createTask(previewable[0]),
-      createTask({ url: 'skip-me', supportsPreview: false }),
+      createTask(nonPreviewable),
       createTask(previewable[1]),
       createTask()
     ]
@@ -38,28 +77,28 @@ describe('useResultGallery', () => {
       () => tasks
     )
 
-    onViewItem(createJobItem('job-1', previewable[0]))
+    await onViewItem(createJobViewItem('job-1', tasks[0]))
 
-    expect(galleryItems.value).toEqual(previewable)
+    expect(galleryItems.value).toEqual([previewable[0]])
     expect(galleryActiveIndex.value).toBe(0)
   })
 
-  it('does not change state when there are no previewable tasks', () => {
+  it('does not change state when there are no previewable tasks', async () => {
     const { galleryItems, galleryActiveIndex, onViewItem } = useResultGallery(
       () => []
     )
 
-    onViewItem(createJobItem('job-missing'))
+    await onViewItem(createJobViewItem('job-missing'))
 
     expect(galleryItems.value).toEqual([])
     expect(galleryActiveIndex.value).toBe(-1)
   })
 
-  it('activates the index that matches the viewed preview URL', () => {
+  it('activates the index that matches the viewed preview URL', async () => {
     const previewable = [
-      createPreview('p-1'),
-      createPreview('p-2'),
-      createPreview('p-3')
+      createResultItem('p-1'),
+      createResultItem('p-2'),
+      createResultItem('p-3')
     ]
     const tasks = previewable.map((preview) => createTask(preview))
 
@@ -67,37 +106,66 @@ describe('useResultGallery', () => {
       () => tasks
     )
 
-    onViewItem(createJobItem('job-2', createPreview('p-2')))
+    await onViewItem(createJobViewItem('job-2', tasks[1]))
 
-    expect(galleryItems.value).toEqual(previewable)
-    expect(galleryActiveIndex.value).toBe(1)
+    expect(galleryItems.value).toEqual([previewable[1]])
+    expect(galleryActiveIndex.value).toBe(0)
   })
 
-  it('defaults to the first entry when the clicked job lacks a preview', () => {
-    const previewable = [createPreview('p-1'), createPreview('p-2')]
+  it('defaults to the first entry when the clicked job lacks a preview', async () => {
+    const previewable = [createResultItem('p-1'), createResultItem('p-2')]
     const tasks = previewable.map((preview) => createTask(preview))
 
     const { galleryItems, galleryActiveIndex, onViewItem } = useResultGallery(
       () => tasks
     )
 
-    onViewItem(createJobItem('job-no-preview'))
+    await onViewItem(createJobViewItem('job-no-preview'))
 
     expect(galleryItems.value).toEqual(previewable)
     expect(galleryActiveIndex.value).toBe(0)
   })
 
-  it('defaults to the first entry when no gallery item matches the preview URL', () => {
-    const previewable = [createPreview('p-1'), createPreview('p-2')]
+  it('defaults to the first entry when no gallery item matches the preview URL', async () => {
+    const previewable = [createResultItem('p-1'), createResultItem('p-2')]
     const tasks = previewable.map((preview) => createTask(preview))
 
     const { galleryItems, galleryActiveIndex, onViewItem } = useResultGallery(
       () => tasks
     )
 
-    onViewItem(createJobItem('job-mismatch', createPreview('missing')))
+    const taskWithMismatchedPreview = createTask(createResultItem('missing'))
+    await onViewItem(
+      createJobViewItem('job-mismatch', taskWithMismatchedPreview)
+    )
 
-    expect(galleryItems.value).toEqual(previewable)
+    expect(galleryItems.value).toEqual([createResultItem('missing')])
+    expect(galleryActiveIndex.value).toBe(0)
+  })
+
+  it('loads full outputs when task has only preview outputs', async () => {
+    const previewOutput = createResultItem('preview-1')
+    const fullOutputs = [
+      createResultItem('full-1'),
+      createResultItem('full-2'),
+      createResultItem('full-3')
+    ]
+
+    // Create a task with outputsCount > 1 to trigger lazy loading
+    const job = createMockJob('task-1', 3)
+    const task = new TaskItemImpl(job, {}, [previewOutput])
+
+    // Mock loadFullOutputs to return full outputs
+    const loadedTask = new TaskItemImpl(job, {}, fullOutputs)
+    task.loadFullOutputs = async () => loadedTask
+
+    const { galleryItems, galleryActiveIndex, onViewItem } = useResultGallery(
+      () => [task]
+    )
+
+    await onViewItem(createJobViewItem('job-1', task))
+
+    expect(galleryItems.value).toEqual(fullOutputs)
     expect(galleryActiveIndex.value).toBe(0)
   })
 })
diff --git a/src/composables/queue/useResultGallery.ts b/src/composables/queue/useResultGallery.ts
index 0e9934165c..44c6a607dd 100644
--- a/src/composables/queue/useResultGallery.ts
+++ b/src/composables/queue/useResultGallery.ts
@@ -1,27 +1,42 @@
 import { ref, shallowRef } from 'vue'
 
 import type { JobListItem } from '@/composables/queue/useJobList'
-import type { ResultItemImpl } from '@/stores/queueStore'
+import { findActiveIndex, getOutputsForTask } from '@/services/jobOutputCache'
+import type { ResultItemImpl, TaskItemImpl } from '@/stores/queueStore'
 
 /**
  * Manages result gallery state and activation for queue items.
  */
-export function useResultGallery(getFilteredTasks: () => any[]) {
+export function useResultGallery(getFilteredTasks: () => TaskItemImpl[]) {
   const galleryActiveIndex = ref(-1)
   const galleryItems = shallowRef<ResultItemImpl[]>([])
 
-  const onViewItem = (item: JobListItem) => {
-    const items: ResultItemImpl[] = getFilteredTasks().flatMap((t: any) => {
-      const preview = t.previewOutput
-      return preview && preview.supportsPreview ? [preview] : []
-    })
+  async function onViewItem(item: JobListItem) {
+    const tasks = getFilteredTasks()
+    if (!tasks.length) return
+
+    const targetTask = item.taskRef
+    const targetOutputs = targetTask
+      ? await getOutputsForTask(targetTask)
+      : null
+
+    // Request was superseded by a newer one
+    if (targetOutputs === null && targetTask) return
+
+    // Use target's outputs if available, otherwise fall back to all previews
+    const items = targetOutputs?.length
+      ? targetOutputs
+      : tasks
+          .map((t) => t.previewOutput)
+          .filter((o): o is ResultItemImpl => !!o)
 
     if (!items.length) return
 
     galleryItems.value = items
-    const activeUrl: string | undefined = item.taskRef?.previewOutput?.url
-    const idx = activeUrl ? items.findIndex((o) => o.url === activeUrl) : 0
-    galleryActiveIndex.value = idx >= 0 ? idx : 0
+    galleryActiveIndex.value = findActiveIndex(
+      items,
+      item.taskRef?.previewOutput?.url
+    )
   }
 
   return {
diff --git a/src/platform/assets/composables/media/assetMappers.ts b/src/platform/assets/composables/media/assetMappers.ts
index c03b277bd5..863dc98770 100644
--- a/src/platform/assets/composables/media/assetMappers.ts
+++ b/src/platform/assets/composables/media/assetMappers.ts
@@ -32,7 +32,6 @@ export function mapTaskOutputToAssetItem(
     subfolder: output.subfolder,
     executionTimeInSeconds: taskItem.executionTimeInSeconds,
     format: output.format,
-    workflow: taskItem.workflow,
     create_time: taskItem.createTime
   }
 
diff --git a/src/platform/remote/comfyui/history/__fixtures__/historyFixtures.ts b/src/platform/remote/comfyui/history/__fixtures__/historyFixtures.ts
deleted file mode 100644
index 3a930a1add..0000000000
--- a/src/platform/remote/comfyui/history/__fixtures__/historyFixtures.ts
+++ /dev/null
@@ -1,380 +0,0 @@
-/**
- * @fileoverview Test fixtures for history tests.
- */
-import type { HistoryResponseV2 } from '@/platform/remote/comfyui/history/types/historyV2Types'
-import type { HistoryTaskItem } from '@/schemas/apiSchema'
-
-/**
- * V1 API raw response format (object with prompt IDs as keys)
- */
-export const historyV1RawResponse: Record<
-  string,
-  Omit<HistoryTaskItem, 'taskType'>
-> = {
-  'complete-item-id': {
-    prompt: [
-      24,
-      'complete-item-id',
-      {},
-      {
-        client_id: 'test-client',
-        extra_pnginfo: {
-          workflow: {
-            id: '44f0c9f9-b5a7-48de-99fc-7e80c1570241',
-            revision: 0,
-            last_node_id: 9,
-            last_link_id: 9,
-            nodes: [],
-            links: [],
-            groups: [],
-            config: {},
-            extra: {},
-            version: 0.4
-          }
-        }
-      },
-      ['9']
-    ],
-    outputs: {
-      '9': {
-        images: [
-          {
-            filename: 'test.png',
-            subfolder: '',
-            type: 'output'
-          }
-        ]
-      }
-    },
-    status: {
-      status_str: 'success',
-      completed: true,
-      messages: [
-        [
-          'execution_start',
-          { prompt_id: 'complete-item-id', timestamp: 1234567890 }
-        ],
-        [
-          'execution_success',
-          { prompt_id: 'complete-item-id', timestamp: 1234567900 }
-        ]
-      ]
-    },
-    meta: {
-      '9': {
-        node_id: '9',
-        display_node: '9'
-      }
-    }
-  },
-  'no-status-id': {
-    prompt: [
-      23,
-      'no-status-id',
-      {},
-      {
-        client_id: 'inference'
-      },
-      ['10']
-    ],
-    outputs: {
-      '10': {
-        images: []
-      }
-    },
-    status: undefined,
-    meta: {
-      '10': {
-        node_id: '10',
-        display_node: '10'
-      }
-    }
-  }
-}
-
-/**
- * V2 response with multiple edge cases:
- * - Item 0: Complete with all fields
- * - Item 1: Missing optional status field
- * - Item 2: Missing optional meta field
- * - Item 3: Multiple output nodes
- */
-export const historyV2Fixture: HistoryResponseV2 = {
-  history: [
-    {
-      prompt_id: 'complete-item-id',
-      prompt: {
-        priority: 24,
-        prompt_id: 'complete-item-id',
-        extra_data: {
-          client_id: 'test-client',
-          extra_pnginfo: {
-            workflow: {
-              id: '44f0c9f9-b5a7-48de-99fc-7e80c1570241',
-              revision: 0,
-              last_node_id: 9,
-              last_link_id: 9,
-              nodes: [],
-              links: [],
-              groups: [],
-              config: {},
-              extra: {},
-              version: 0.4
-            }
-          }
-        }
-      },
-      outputs: {
-        '9': {
-          images: [
-            {
-              filename: 'test.png',
-              subfolder: '',
-              type: 'output'
-            }
-          ]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_start',
-            { prompt_id: 'complete-item-id', timestamp: 1234567890 }
-          ],
-          [
-            'execution_success',
-            { prompt_id: 'complete-item-id', timestamp: 1234567900 }
-          ]
-        ]
-      },
-      meta: {
-        '9': {
-          node_id: '9',
-          display_node: '9'
-        }
-      }
-    },
-    {
-      prompt_id: 'no-status-id',
-      prompt: {
-        priority: 23,
-        prompt_id: 'no-status-id',
-        extra_data: {
-          client_id: 'inference'
-        }
-      },
-      outputs: {
-        '10': {
-          images: []
-        }
-      },
-      meta: {
-        '10': {
-          node_id: '10',
-          display_node: '10'
-        }
-      }
-    },
-    {
-      prompt_id: 'no-meta-id',
-      prompt: {
-        priority: 22,
-        prompt_id: 'no-meta-id',
-        extra_data: {
-          client_id: 'web-ui'
-        }
-      },
-      outputs: {
-        '11': {
-          audio: []
-        }
-      },
-      status: {
-        status_str: 'error',
-        completed: false,
-        messages: []
-      }
-    },
-    {
-      prompt_id: 'multi-output-id',
-      prompt: {
-        priority: 21,
-        prompt_id: 'multi-output-id',
-        extra_data: {
-          client_id: 'batch-processor'
-        }
-      },
-      outputs: {
-        '3': {
-          images: [{ filename: 'img1.png', type: 'output', subfolder: '' }]
-        },
-        '9': {
-          images: [{ filename: 'img2.png', type: 'output', subfolder: '' }]
-        },
-        '12': {
-          video: [{ filename: 'video.mp4', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: []
-      },
-      meta: {
-        '3': { node_id: '3', display_node: '3' },
-        '9': { node_id: '9', display_node: '9' },
-        '12': { node_id: '12', display_node: '12' }
-      }
-    }
-  ]
-}
-
-/**
- * Expected V1 transformation of historyV2Fixture
- * Priority is now synthetic based on execution_success timestamp:
- * - complete-item-id: has timestamp → priority 1 (only one with timestamp)
- * - no-status-id: no status → priority 0
- * - no-meta-id: empty messages → priority 0
- * - multi-output-id: empty messages → priority 0
- */
-export const expectedV1Fixture: HistoryTaskItem[] = [
-  {
-    taskType: 'History',
-    prompt: [
-      1,
-      'complete-item-id',
-      {},
-      {
-        client_id: 'test-client',
-        extra_pnginfo: {
-          workflow: {
-            id: '44f0c9f9-b5a7-48de-99fc-7e80c1570241',
-            revision: 0,
-            last_node_id: 9,
-            last_link_id: 9,
-            nodes: [],
-            links: [],
-            groups: [],
-            config: {},
-            extra: {},
-            version: 0.4
-          }
-        }
-      },
-      ['9']
-    ],
-    outputs: {
-      '9': {
-        images: [
-          {
-            filename: 'test.png',
-            subfolder: '',
-            type: 'output'
-          }
-        ]
-      }
-    },
-    status: {
-      status_str: 'success',
-      completed: true,
-      messages: [
-        [
-          'execution_start',
-          { prompt_id: 'complete-item-id', timestamp: 1234567890 }
-        ],
-        [
-          'execution_success',
-          { prompt_id: 'complete-item-id', timestamp: 1234567900 }
-        ]
-      ]
-    },
-    meta: {
-      '9': {
-        node_id: '9',
-        display_node: '9'
-      }
-    }
-  },
-  {
-    taskType: 'History',
-    prompt: [
-      0,
-      'no-status-id',
-      {},
-      {
-        client_id: 'inference'
-      },
-      ['10']
-    ],
-    outputs: {
-      '10': {
-        images: []
-      }
-    },
-    status: undefined,
-    meta: {
-      '10': {
-        node_id: '10',
-        display_node: '10'
-      }
-    }
-  },
-  {
-    taskType: 'History',
-    prompt: [
-      0,
-      'no-meta-id',
-      {},
-      {
-        client_id: 'web-ui'
-      },
-      ['11']
-    ],
-    outputs: {
-      '11': {
-        audio: []
-      }
-    },
-    status: {
-      status_str: 'error',
-      completed: false,
-      messages: []
-    },
-    meta: undefined
-  },
-  {
-    taskType: 'History',
-    prompt: [
-      0,
-      'multi-output-id',
-      {},
-      {
-        client_id: 'batch-processor'
-      },
-      ['3', '9', '12']
-    ],
-    outputs: {
-      '3': {
-        images: [{ filename: 'img1.png', type: 'output', subfolder: '' }]
-      },
-      '9': {
-        images: [{ filename: 'img2.png', type: 'output', subfolder: '' }]
-      },
-      '12': {
-        video: [{ filename: 'video.mp4', type: 'output', subfolder: '' }]
-      }
-    },
-    status: {
-      status_str: 'success',
-      completed: true,
-      messages: []
-    },
-    meta: {
-      '3': { node_id: '3', display_node: '3' },
-      '9': { node_id: '9', display_node: '9' },
-      '12': { node_id: '12', display_node: '12' }
-    }
-  }
-]
diff --git a/src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.test.ts b/src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.test.ts
deleted file mode 100644
index e9dff7d383..0000000000
--- a/src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.test.ts
+++ /dev/null
@@ -1,434 +0,0 @@
-/**
- * @fileoverview Unit tests for V2 to V1 history adapter.
- */
-import { describe, expect, it } from 'vitest'
-
-import { mapHistoryV2toHistory } from '@/platform/remote/comfyui/history/adapters/v2ToV1Adapter'
-import { zRawHistoryItemV2 } from '@/platform/remote/comfyui/history/types/historyV2Types'
-import type { HistoryResponseV2 } from '@/platform/remote/comfyui/history/types/historyV2Types'
-
-import {
-  expectedV1Fixture,
-  historyV2Fixture
-} from '@/platform/remote/comfyui/history/__fixtures__/historyFixtures'
-import type { HistoryTaskItem } from '@/platform/remote/comfyui/history/types/historyV1Types'
-
-const historyV2WithMissingTimestamp: HistoryResponseV2 = {
-  history: [
-    {
-      prompt_id: 'item-timestamp-1000',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-timestamp-1000',
-        extra_data: {
-          client_id: 'test-client'
-        }
-      },
-      outputs: {
-        '1': {
-          images: [{ filename: 'test1.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_success',
-            { prompt_id: 'item-timestamp-1000', timestamp: 1000 }
-          ]
-        ]
-      }
-    },
-    {
-      prompt_id: 'item-timestamp-2000',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-timestamp-2000',
-        extra_data: {
-          client_id: 'test-client'
-        }
-      },
-      outputs: {
-        '2': {
-          images: [{ filename: 'test2.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_success',
-            { prompt_id: 'item-timestamp-2000', timestamp: 2000 }
-          ]
-        ]
-      }
-    },
-    {
-      prompt_id: 'item-no-timestamp',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-no-timestamp',
-        extra_data: {
-          client_id: 'test-client'
-        }
-      },
-      outputs: {
-        '3': {
-          images: [{ filename: 'test3.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: []
-      }
-    }
-  ]
-}
-
-const historyV2FiveItemsSorting: HistoryResponseV2 = {
-  history: [
-    {
-      prompt_id: 'item-timestamp-3000',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-timestamp-3000',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '1': {
-          images: [{ filename: 'test1.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_success',
-            { prompt_id: 'item-timestamp-3000', timestamp: 3000 }
-          ]
-        ]
-      }
-    },
-    {
-      prompt_id: 'item-timestamp-1000',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-timestamp-1000',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '2': {
-          images: [{ filename: 'test2.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_success',
-            { prompt_id: 'item-timestamp-1000', timestamp: 1000 }
-          ]
-        ]
-      }
-    },
-    {
-      prompt_id: 'item-timestamp-5000',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-timestamp-5000',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '3': {
-          images: [{ filename: 'test3.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_success',
-            { prompt_id: 'item-timestamp-5000', timestamp: 5000 }
-          ]
-        ]
-      }
-    },
-    {
-      prompt_id: 'item-timestamp-2000',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-timestamp-2000',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '4': {
-          images: [{ filename: 'test4.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_success',
-            { prompt_id: 'item-timestamp-2000', timestamp: 2000 }
-          ]
-        ]
-      }
-    },
-    {
-      prompt_id: 'item-timestamp-4000',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-timestamp-4000',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '5': {
-          images: [{ filename: 'test5.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: [
-          [
-            'execution_success',
-            { prompt_id: 'item-timestamp-4000', timestamp: 4000 }
-          ]
-        ]
-      }
-    }
-  ]
-}
-
-const historyV2MultipleNoTimestamp: HistoryResponseV2 = {
-  history: [
-    {
-      prompt_id: 'item-no-timestamp-1',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-no-timestamp-1',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '1': {
-          images: [{ filename: 'test1.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: []
-      }
-    },
-    {
-      prompt_id: 'item-no-timestamp-2',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-no-timestamp-2',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '2': {
-          images: [{ filename: 'test2.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: []
-      }
-    },
-    {
-      prompt_id: 'item-no-timestamp-3',
-      prompt: {
-        priority: 0,
-        prompt_id: 'item-no-timestamp-3',
-        extra_data: { client_id: 'test-client' }
-      },
-      outputs: {
-        '3': {
-          images: [{ filename: 'test3.png', type: 'output', subfolder: '' }]
-        }
-      },
-      status: {
-        status_str: 'success',
-        completed: true,
-        messages: []
-      }
-    }
-  ]
-}
-
-function findResultByPromptId(
-  result: HistoryTaskItem[],
-  promptId: string
-): HistoryTaskItem {
-  const item = result.find((item) => item.prompt[1] === promptId)
-  if (!item) {
-    throw new Error(`Expected item with promptId ${promptId} not found`)
-  }
-  return item
-}
-
-describe('mapHistoryV2toHistory', () => {
-  describe('fixture validation', () => {
-    it('should have valid fixture data', () => {
-      // Validate all items in the fixture to ensure test data is correct
-      historyV2Fixture.history.forEach((item: unknown) => {
-        expect(() => zRawHistoryItemV2.parse(item)).not.toThrow()
-      })
-    })
-  })
-
-  describe('given a complete V2 history response with edge cases', () => {
-    const history = mapHistoryV2toHistory(historyV2Fixture)
-
-    it('should transform all items to V1 format with correct structure', () => {
-      expect(history).toEqual(expectedV1Fixture)
-    })
-
-    it('should add taskType "History" to all items', () => {
-      history.forEach((item) => {
-        expect(item.taskType).toBe('History')
-      })
-    })
-
-    it('should transform prompt to V1 tuple [priority, id, {}, extra_data, outputNodeIds]', () => {
-      const firstItem = history[0]
-
-      expect(firstItem.prompt[0]).toBe(1) // Synthetic priority based on timestamp
-      expect(firstItem.prompt[1]).toBe('complete-item-id')
-      expect(firstItem.prompt[2]).toEqual({}) // history v2 does not return this data
-      expect(firstItem.prompt[3]).toMatchObject({ client_id: 'test-client' })
-      expect(firstItem.prompt[4]).toEqual(['9'])
-    })
-
-    it('should handle missing optional status field', () => {
-      expect(history[1].prompt[1]).toBe('no-status-id')
-      expect(history[1].status).toBeUndefined()
-    })
-
-    it('should handle missing optional meta field', () => {
-      expect(history[2].prompt[1]).toBe('no-meta-id')
-      expect(history[2].meta).toBeUndefined()
-    })
-
-    it('should derive output node IDs from outputs object keys', () => {
-      const multiOutputItem = history[3]
-
-      expect(multiOutputItem.prompt[4]).toEqual(
-        expect.arrayContaining(['3', '9', '12'])
-      )
-      expect(multiOutputItem.prompt[4]).toHaveLength(3)
-    })
-  })
-
-  describe('given empty history array', () => {
-    it('should return empty array', () => {
-      const emptyResponse: HistoryResponseV2 = { history: [] }
-      const history = mapHistoryV2toHistory(emptyResponse)
-
-      expect(history).toEqual([])
-    })
-  })
-
-  describe('given empty outputs object', () => {
-    it('should return empty array for output node IDs', () => {
-      const v2Response: HistoryResponseV2 = {
-        history: [
-          {
-            prompt_id: 'test-id',
-            prompt: {
-              priority: 0,
-              prompt_id: 'test-id',
-              extra_data: { client_id: 'test' }
-            },
-            outputs: {}
-          }
-        ]
-      }
-
-      const history = mapHistoryV2toHistory(v2Response)
-
-      expect(history[0].prompt[4]).toEqual([])
-    })
-  })
-
-  describe('given missing client_id', () => {
-    it('should accept history items without client_id', () => {
-      const v2Response: HistoryResponseV2 = {
-        history: [
-          {
-            prompt_id: 'test-id',
-            prompt: {
-              priority: 0,
-              prompt_id: 'test-id',
-              extra_data: {}
-            },
-            outputs: {}
-          }
-        ]
-      }
-
-      const history = mapHistoryV2toHistory(v2Response)
-
-      expect(history[0].prompt[3].client_id).toBeUndefined()
-    })
-  })
-
-  describe('timestamp-based priority assignment', () => {
-    it('assigns priority 0 to items without execution_success timestamp', () => {
-      const result = mapHistoryV2toHistory(historyV2WithMissingTimestamp)
-
-      expect(result).toHaveLength(3)
-
-      const item1000 = findResultByPromptId(result, 'item-timestamp-1000')
-      const item2000 = findResultByPromptId(result, 'item-timestamp-2000')
-      const itemNoTimestamp = findResultByPromptId(result, 'item-no-timestamp')
-
-      expect(item2000.prompt[0]).toBe(2)
-      expect(item1000.prompt[0]).toBe(1)
-      expect(itemNoTimestamp.prompt[0]).toBe(0)
-    })
-
-    it('correctly sorts and assigns priorities for multiple items', () => {
-      const result = mapHistoryV2toHistory(historyV2FiveItemsSorting)
-
-      expect(result).toHaveLength(5)
-
-      const item1000 = findResultByPromptId(result, 'item-timestamp-1000')
-      const item2000 = findResultByPromptId(result, 'item-timestamp-2000')
-      const item3000 = findResultByPromptId(result, 'item-timestamp-3000')
-      const item4000 = findResultByPromptId(result, 'item-timestamp-4000')
-      const item5000 = findResultByPromptId(result, 'item-timestamp-5000')
-
-      expect(item5000.prompt[0]).toBe(5)
-      expect(item4000.prompt[0]).toBe(4)
-      expect(item3000.prompt[0]).toBe(3)
-      expect(item2000.prompt[0]).toBe(2)
-      expect(item1000.prompt[0]).toBe(1)
-    })
-
-    it('assigns priority 0 to all items when multiple items lack timestamps', () => {
-      const result = mapHistoryV2toHistory(historyV2MultipleNoTimestamp)
-
-      expect(result).toHaveLength(3)
-
-      const item1 = findResultByPromptId(result, 'item-no-timestamp-1')
-      const item2 = findResultByPromptId(result, 'item-no-timestamp-2')
-      const item3 = findResultByPromptId(result, 'item-no-timestamp-3')
-
-      expect(item1.prompt[0]).toBe(0)
-      expect(item2.prompt[0]).toBe(0)
-      expect(item3.prompt[0]).toBe(0)
-    })
-  })
-})
diff --git a/src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.ts b/src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.ts
deleted file mode 100644
index fcb46eda7d..0000000000
--- a/src/platform/remote/comfyui/history/adapters/v2ToV1Adapter.ts
+++ /dev/null
@@ -1,74 +0,0 @@
-/**
- * @fileoverview Adapter to convert V2 history format to V1 format
- * @module platform/remote/comfyui/history/adapters/v2ToV1Adapter
- */
-import type { HistoryTaskItem, TaskPrompt } from '../types/historyV1Types'
-import type {
-  HistoryResponseV2,
-  RawHistoryItemV2,
-  TaskOutput,
-  TaskPromptV2
-} from '../types/historyV2Types'
-
-function mapPromptV2toV1(
-  promptV2: TaskPromptV2,
-  outputs: TaskOutput,
-  syntheticPriority: number,
-  createTime?: number
-): TaskPrompt {
-  const extraData = {
-    ...(promptV2.extra_data ?? {}),
-    ...(typeof createTime === 'number' ? { create_time: createTime } : {})
-  }
-  return [
-    syntheticPriority,
-    promptV2.prompt_id,
-    {},
-    extraData,
-    Object.keys(outputs)
-  ]
-}
-
-function getExecutionSuccessTimestamp(item: RawHistoryItemV2): number {
-  return (
-    item.status?.messages?.find((m) => m[0] === 'execution_success')?.[1]
-      ?.timestamp ?? 0
-  )
-}
-
-export function mapHistoryV2toHistory(
-  historyV2Response: HistoryResponseV2
-): HistoryTaskItem[] {
-  const { history } = historyV2Response
-
-  // Sort by execution_success timestamp, descending (newest first)
-  history.sort((a, b) => {
-    return getExecutionSuccessTimestamp(b) - getExecutionSuccessTimestamp(a)
-  })
-
-  // Count items with valid timestamps for synthetic priority calculation
-  const countWithTimestamps = history.filter(
-    (item) => getExecutionSuccessTimestamp(item) > 0
-  ).length
-
-  return history.map((item, index): HistoryTaskItem => {
-    const { prompt, outputs, status, meta } = item
-    const timestamp = getExecutionSuccessTimestamp(item)
-
-    // Items with timestamps get priority based on sorted position (highest first)
-    const syntheticPriority = timestamp > 0 ? countWithTimestamps - index : 0
-
-    return {
-      taskType: 'History' as const,
-      prompt: mapPromptV2toV1(
-        prompt,
-        outputs,
-        syntheticPriority,
-        item.create_time
-      ),
-      status,
-      outputs,
-      meta
-    }
-  })
-}
diff --git a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.test.ts b/src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.test.ts
deleted file mode 100644
index b2fa1cfa2e..0000000000
--- a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.test.ts
+++ /dev/null
@@ -1,52 +0,0 @@
-/**
- * @fileoverview Unit tests for V1 history fetcher.
- */
-import { describe, expect, it, vi } from 'vitest'
-
-import { fetchHistoryV1 } from '@/platform/remote/comfyui/history/fetchers/fetchHistoryV1'
-
-import { historyV1RawResponse } from '@/platform/remote/comfyui/history/__fixtures__/historyFixtures'
-
-describe('fetchHistoryV1', () => {
-  const mockFetchApi = vi.fn().mockResolvedValue({
-    json: async () => historyV1RawResponse
-  })
-
-  it('should fetch from /history endpoint with default max_items', async () => {
-    await fetchHistoryV1(mockFetchApi)
-
-    expect(mockFetchApi).toHaveBeenCalledWith('/history?max_items=200')
-  })
-
-  it('should fetch with custom max_items parameter', async () => {
-    await fetchHistoryV1(mockFetchApi, 50)
-
-    expect(mockFetchApi).toHaveBeenCalledWith('/history?max_items=50')
-  })
-
-  it('should transform object response to array with taskType and preserve fields', async () => {
-    const result = await fetchHistoryV1(mockFetchApi)
-
-    expect(result.History).toHaveLength(2)
-    result.History.forEach((item) => {
-      expect(item.taskType).toBe('History')
-    })
-    expect(result.History[0]).toMatchObject({
-      taskType: 'History',
-      prompt: [24, 'complete-item-id', {}, expect.any(Object), ['9']],
-      outputs: expect.any(Object),
-      status: expect.any(Object),
-      meta: expect.any(Object)
-    })
-  })
-
-  it('should handle empty response object', async () => {
-    const emptyMock = vi.fn().mockResolvedValue({
-      json: async () => ({})
-    })
-
-    const result = await fetchHistoryV1(emptyMock)
-
-    expect(result.History).toEqual([])
-  })
-})
diff --git a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.ts b/src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.ts
deleted file mode 100644
index 6d566d035b..0000000000
--- a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV1.ts
+++ /dev/null
@@ -1,51 +0,0 @@
-/**
- * @fileoverview V1 History Fetcher - Desktop/localhost API
- * @module platform/remote/comfyui/history/fetchers/fetchHistoryV1
- *
- * Fetches history directly from V1 API endpoint.
- * Used by desktop and localhost distributions.
- */
-
-import type {
-  HistoryTaskItem,
-  HistoryV1Response
-} from '../types/historyV1Types'
-
-/**
- * Fetches history from V1 API endpoint
- * @param api - API instance with fetchApi method
- * @param maxItems - Maximum number of history items to fetch
- * @param offset - Offset for pagination (must be non-negative integer)
- * @returns Promise resolving to V1 history response
- * @throws Error if offset is invalid (negative or non-integer)
- */
-export async function fetchHistoryV1(
-  fetchApi: (url: string) => Promise<Response>,
-  maxItems: number = 200,
-  offset?: number
-): Promise<HistoryV1Response> {
-  // Validate offset parameter
-  if (offset !== undefined && (offset < 0 || !Number.isInteger(offset))) {
-    throw new Error(
-      `Invalid offset parameter: ${offset}. Must be a non-negative integer.`
-    )
-  }
-
-  const params = new URLSearchParams({ max_items: maxItems.toString() })
-  if (offset !== undefined) {
-    params.set('offset', offset.toString())
-  }
-  const url = `/history?${params.toString()}`
-  const res = await fetchApi(url)
-  const json: Record<
-    string,
-    Omit<HistoryTaskItem, 'taskType'>
-  > = await res.json()
-
-  return {
-    History: Object.values(json).map((item) => ({
-      ...item,
-      taskType: 'History'
-    }))
-  }
-}
diff --git a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.test.ts b/src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.test.ts
deleted file mode 100644
index fd8aa8bbd0..0000000000
--- a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.test.ts
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
- * @fileoverview Unit tests for V2 history fetcher.
- */
-import { describe, expect, it, vi } from 'vitest'
-
-import { fetchHistoryV2 } from '@/platform/remote/comfyui/history/fetchers/fetchHistoryV2'
-
-import {
-  expectedV1Fixture,
-  historyV2Fixture
-} from '@/platform/remote/comfyui/history/__fixtures__/historyFixtures'
-
-describe('fetchHistoryV2', () => {
-  const mockFetchApi = vi.fn().mockResolvedValue({
-    json: async () => historyV2Fixture
-  })
-
-  it('should fetch from /history_v2 endpoint with default max_items', async () => {
-    await fetchHistoryV2(mockFetchApi)
-
-    expect(mockFetchApi).toHaveBeenCalledWith('/history_v2?max_items=200')
-  })
-
-  it('should fetch with custom max_items parameter', async () => {
-    await fetchHistoryV2(mockFetchApi, 50)
-
-    expect(mockFetchApi).toHaveBeenCalledWith('/history_v2?max_items=50')
-  })
-
-  it('should adapt V2 response to V1-compatible format', async () => {
-    const result = await fetchHistoryV2(mockFetchApi)
-
-    expect(result.History).toEqual(expectedV1Fixture)
-    expect(result).toHaveProperty('History')
-    expect(Array.isArray(result.History)).toBe(true)
-    result.History.forEach((item) => {
-      expect(item.taskType).toBe('History')
-      expect(item.prompt).toHaveLength(5)
-    })
-  })
-})
diff --git a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.ts b/src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.ts
deleted file mode 100644
index dfe86ece1d..0000000000
--- a/src/platform/remote/comfyui/history/fetchers/fetchHistoryV2.ts
+++ /dev/null
@@ -1,42 +0,0 @@
-/**
- * @fileoverview V2 History Fetcher - Cloud API with adapter
- * @module platform/remote/comfyui/history/fetchers/fetchHistoryV2
- *
- * Fetches history from V2 API endpoint and converts to V1 format.
- * Used exclusively by cloud distribution.
- */
-
-import { mapHistoryV2toHistory } from '../adapters/v2ToV1Adapter'
-import type { HistoryV1Response } from '../types/historyV1Types'
-import type { HistoryResponseV2 } from '../types/historyV2Types'
-
-/**
- * Fetches history from V2 API endpoint and adapts to V1 format
- * @param fetchApi - API instance with fetchApi method
- * @param maxItems - Maximum number of history items to fetch
- * @param offset - Offset for pagination (must be non-negative integer)
- * @returns Promise resolving to V1 history response (adapted from V2)
- * @throws Error if offset is invalid (negative or non-integer)
- */
-export async function fetchHistoryV2(
-  fetchApi: (url: string) => Promise<Response>,
-  maxItems: number = 200,
-  offset?: number
-): Promise<HistoryV1Response> {
-  // Validate offset parameter
-  if (offset !== undefined && (offset < 0 || !Number.isInteger(offset))) {
-    throw new Error(
-      `Invalid offset parameter: ${offset}. Must be a non-negative integer.`
-    )
-  }
-
-  const params = new URLSearchParams({ max_items: maxItems.toString() })
-  if (offset !== undefined) {
-    params.set('offset', offset.toString())
-  }
-  const url = `/history_v2?${params.toString()}`
-  const res = await fetchApi(url)
-  const rawData: HistoryResponseV2 = await res.json()
-  const adaptedHistory = mapHistoryV2toHistory(rawData)
-  return { History: adaptedHistory }
-}
diff --git a/src/platform/remote/comfyui/history/index.ts b/src/platform/remote/comfyui/history/index.ts
deleted file mode 100644
index fc96225e49..0000000000
--- a/src/platform/remote/comfyui/history/index.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
- * @fileoverview History API module - Distribution-aware exports
- * @module platform/remote/comfyui/history
- *
- * This module provides a unified history fetching interface that automatically
- * uses the correct implementation based on build-time distribution constant.
- *
- * - Cloud builds: Uses V2 API with adapter (tree-shakes V1 fetcher)
- * - Desktop/localhost builds: Uses V1 API directly (tree-shakes V2 fetcher + adapter)
- *
- * The rest of the application only needs to import from this module and use
- * V1 types - all distribution-specific details are encapsulated here.
- */
-
-import { isCloud } from '@/platform/distribution/types'
-import { fetchHistoryV1 } from './fetchers/fetchHistoryV1'
-import { fetchHistoryV2 } from './fetchers/fetchHistoryV2'
-
-/**
- * Fetches history using the appropriate API for the current distribution.
- * Build-time constant enables dead code elimination - only one implementation
- * will be included in the final bundle.
- */
-export const fetchHistory = isCloud ? fetchHistoryV2 : fetchHistoryV1
-
-/**
- * Export only V1 types publicly - consumers don't need to know about V2
- */
-export type * from './types'
diff --git a/src/platform/remote/comfyui/history/reconciliation.test.ts b/src/platform/remote/comfyui/history/reconciliation.test.ts
deleted file mode 100644
index d7ada5971b..0000000000
--- a/src/platform/remote/comfyui/history/reconciliation.test.ts
+++ /dev/null
@@ -1,335 +0,0 @@
-/**
- * @fileoverview Tests for history reconciliation (V1 and V2)
- */
-import { beforeEach, describe, expect, it, vi } from 'vitest'
-
-import { reconcileHistory } from '@/platform/remote/comfyui/history/reconciliation'
-import type { TaskItem } from '@/schemas/apiSchema'
-
-// Mock distribution types
-vi.mock('@/platform/distribution/types', () => ({
-  isCloud: false,
-  isDesktop: true
-}))
-
-function createHistoryItem(promptId: string, queueIndex = 0): TaskItem {
-  return {
-    taskType: 'History',
-    prompt: [queueIndex, promptId, {}, {}, []],
-    status: { status_str: 'success', completed: true, messages: [] },
-    outputs: {}
-  }
-}
-
-function getAllPromptIds(result: TaskItem[]): string[] {
-  return result.map((item) => item.prompt[1])
-}
-
-describe('reconcileHistory (V1)', () => {
-  beforeEach(async () => {
-    const distTypes = await import('@/platform/distribution/types')
-    vi.mocked(distTypes).isCloud = false
-  })
-
-  describe('when filtering by queueIndex', () => {
-    it('should retain items with queueIndex greater than lastKnownQueueIndex', () => {
-      const serverHistory = [
-        createHistoryItem('new-1', 11),
-        createHistoryItem('new-2', 10),
-        createHistoryItem('old', 5)
-      ]
-      const clientHistory = [createHistoryItem('old', 5)]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10, 9)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(3)
-      expect(promptIds).toContain('new-1')
-      expect(promptIds).toContain('new-2')
-      expect(promptIds).toContain('old')
-    })
-
-    it('should evict items with queueIndex less than or equal to lastKnownQueueIndex', () => {
-      const serverHistory = [
-        createHistoryItem('new', 11),
-        createHistoryItem('existing', 10),
-        createHistoryItem('old-should-not-appear', 5)
-      ]
-      const clientHistory = [createHistoryItem('existing', 10)]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(2)
-      expect(promptIds).toContain('new')
-      expect(promptIds).toContain('existing')
-      expect(promptIds).not.toContain('old-should-not-appear')
-    })
-
-    it('should retain all server items when lastKnownQueueIndex is undefined', () => {
-      const serverHistory = [
-        createHistoryItem('item-1', 5),
-        createHistoryItem('item-2', 4)
-      ]
-
-      const result = reconcileHistory(serverHistory, [], 10, undefined)
-
-      expect(result).toHaveLength(2)
-      expect(result[0].prompt[1]).toBe('item-1')
-      expect(result[1].prompt[1]).toBe('item-2')
-    })
-  })
-
-  describe('when reconciling with existing client items', () => {
-    it('should retain client items that still exist on server', () => {
-      const serverHistory = [
-        createHistoryItem('new', 11),
-        createHistoryItem('existing-1', 9),
-        createHistoryItem('existing-2', 8)
-      ]
-      const clientHistory = [
-        createHistoryItem('existing-1', 9),
-        createHistoryItem('existing-2', 8)
-      ]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(3)
-      expect(promptIds).toContain('new')
-      expect(promptIds).toContain('existing-1')
-      expect(promptIds).toContain('existing-2')
-    })
-
-    it('should evict client items that no longer exist on server', () => {
-      const serverHistory = [
-        createHistoryItem('new', 11),
-        createHistoryItem('keep', 9)
-      ]
-      const clientHistory = [
-        createHistoryItem('keep', 9),
-        createHistoryItem('removed-from-server', 8)
-      ]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(2)
-      expect(promptIds).toContain('new')
-      expect(promptIds).toContain('keep')
-      expect(promptIds).not.toContain('removed-from-server')
-    })
-  })
-
-  describe('when limiting the result count', () => {
-    it('should respect the maxItems constraint', () => {
-      const serverHistory = Array.from({ length: 10 }, (_, i) =>
-        createHistoryItem(`item-${i}`, 20 + i)
-      )
-
-      const result = reconcileHistory(serverHistory, [], 5, 15)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(5)
-    })
-
-    it('should evict lowest priority items when exceeding capacity', () => {
-      const serverHistory = [
-        createHistoryItem('new-1', 13),
-        createHistoryItem('new-2', 12),
-        createHistoryItem('new-3', 11),
-        createHistoryItem('existing', 9)
-      ]
-      const clientHistory = [createHistoryItem('existing', 9)]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 2, 10)
-
-      expect(result).toHaveLength(2)
-      expect(result[0].prompt[1]).toBe('new-1')
-      expect(result[1].prompt[1]).toBe('new-2')
-    })
-  })
-
-  describe('when handling empty collections', () => {
-    it('should return all server items when client history is empty', () => {
-      const serverHistory = [
-        createHistoryItem('item-1', 10),
-        createHistoryItem('item-2', 9)
-      ]
-
-      const result = reconcileHistory(serverHistory, [], 10, 8)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(2)
-    })
-
-    it('should return empty result when server history is empty', () => {
-      const clientHistory = [createHistoryItem('item-1', 5)]
-
-      const result = reconcileHistory([], clientHistory, 10, 5)
-
-      expect(result).toHaveLength(0)
-    })
-
-    it('should return empty result when both collections are empty', () => {
-      const result = reconcileHistory([], [], 10, undefined)
-
-      expect(result).toHaveLength(0)
-    })
-  })
-})
-
-describe('reconcileHistory (V2/Cloud)', () => {
-  beforeEach(async () => {
-    const distTypes = await import('@/platform/distribution/types')
-    vi.mocked(distTypes).isCloud = true
-  })
-
-  describe('when adding new items from server', () => {
-    it('should retain items with promptIds not present in client history', () => {
-      const serverHistory = [
-        createHistoryItem('new-item'),
-        createHistoryItem('existing-item')
-      ]
-      const clientHistory = [createHistoryItem('existing-item')]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(2)
-      expect(promptIds).toContain('new-item')
-      expect(promptIds).toContain('existing-item')
-    })
-
-    it('should respect priority ordering when retaining multiple new items', () => {
-      const serverHistory = [
-        createHistoryItem('new-1'),
-        createHistoryItem('new-2'),
-        createHistoryItem('existing')
-      ]
-      const clientHistory = [createHistoryItem('existing')]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(3)
-      expect(promptIds).toContain('new-1')
-      expect(promptIds).toContain('new-2')
-      expect(promptIds).toContain('existing')
-    })
-  })
-
-  describe('when reconciling with existing client items', () => {
-    it('should retain client items that still exist on server', () => {
-      const serverHistory = [
-        createHistoryItem('item-1'),
-        createHistoryItem('item-2')
-      ]
-      const clientHistory = [
-        createHistoryItem('item-1'),
-        createHistoryItem('item-2')
-      ]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(2)
-      expect(promptIds).toContain('item-1')
-      expect(promptIds).toContain('item-2')
-    })
-
-    it('should evict client items that no longer exist on server', () => {
-      const serverHistory = [createHistoryItem('item-1')]
-      const clientHistory = [
-        createHistoryItem('item-1'),
-        createHistoryItem('old-item')
-      ]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(1)
-      expect(promptIds).toContain('item-1')
-      expect(promptIds).not.toContain('old-item')
-    })
-  })
-
-  describe('when detecting new items by promptId', () => {
-    it('should retain new items regardless of queueIndex values', () => {
-      const serverHistory = [
-        createHistoryItem('existing', 100),
-        createHistoryItem('new-item', 50)
-      ]
-      const clientHistory = [createHistoryItem('existing', 100)]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 10)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toContain('new-item')
-      expect(promptIds).toContain('existing')
-    })
-  })
-
-  describe('when limiting the result count', () => {
-    it('should respect the maxItems constraint', () => {
-      const serverHistory = Array.from({ length: 10 }, (_, i) =>
-        createHistoryItem(`server-${i}`)
-      )
-      const clientHistory = Array.from({ length: 5 }, (_, i) =>
-        createHistoryItem(`client-${i}`)
-      )
-
-      const result = reconcileHistory(serverHistory, clientHistory, 5)
-
-      const promptIds = getAllPromptIds(result)
-      expect(promptIds).toHaveLength(5)
-    })
-
-    it('should evict lowest priority items when exceeding capacity', () => {
-      const serverHistory = [
-        createHistoryItem('new-1'),
-        createHistoryItem('new-2'),
-        createHistoryItem('existing')
-      ]
-      const clientHistory = [createHistoryItem('existing')]
-
-      const result = reconcileHistory(serverHistory, clientHistory, 2)
-
-      expect(result).toHaveLength(2)
-      expect(result[0].prompt[1]).toBe('new-1')
-      expect(result[1].prompt[1]).toBe('new-2')
-    })
-  })
-
-  describe('when handling empty collections', () => {
-    it('should return all server items when client history is empty', () => {
-      const serverHistory = [
-        createHistoryItem('item-1'),
-        createHistoryItem('item-2')
-      ]
-
-      const result = reconcileHistory(serverHistory, [], 10)
-
-      expect(result).toHaveLength(2)
-      expect(result[0].prompt[1]).toBe('item-1')
-      expect(result[1].prompt[1]).toBe('item-2')
-    })
-
-    it('should return empty result when server history is empty', () => {
-      const clientHistory = [
-        createHistoryItem('item-1'),
-        createHistoryItem('item-2')
-      ]
-
-      const result = reconcileHistory([], clientHistory, 10)
-
-      expect(result).toHaveLength(0)
-    })
-
-    it('should return empty result when both collections are empty', () => {
-      const result = reconcileHistory([], [], 10)
-
-      expect(result).toHaveLength(0)
-    })
-  })
-})
diff --git a/src/platform/remote/comfyui/history/reconciliation.ts b/src/platform/remote/comfyui/history/reconciliation.ts
deleted file mode 100644
index aaf445775d..0000000000
--- a/src/platform/remote/comfyui/history/reconciliation.ts
+++ /dev/null
@@ -1,122 +0,0 @@
-/**
- * @fileoverview History reconciliation for V1 and V2 APIs
- * @module platform/remote/comfyui/history/reconciliation
- *
- * Returns list of items that should be displayed, sorted by queueIndex (newest first).
- * Caller is responsible for mapping to their own class instances.
- *
- * V1: QueueIndex-based filtering for stable monotonic indices
- * V2: PromptId-based merging for synthetic priorities (V2 assigns synthetic
- *     priorities after timestamp sorting, so new items may have lower priority
- *     than existing items)
- */
-import { isCloud } from '@/platform/distribution/types'
-import type { TaskItem } from '@/schemas/apiSchema'
-
-/**
- * V1 reconciliation: QueueIndex-based filtering works because V1 has stable,
- * monotonically increasing queue indices.
- *
- * Sort order: Sorts serverHistory by queueIndex descending (newest first) to ensure
- * consistent ordering. JavaScript .filter() maintains iteration order, so filtered
- * results remain sorted. clientHistory is assumed already sorted from previous update.
- *
- * @returns All items to display, sorted by queueIndex descending (newest first)
- */
-function reconcileHistoryV1(
-  serverHistory: TaskItem[],
-  clientHistory: TaskItem[],
-  maxItems: number,
-  lastKnownQueueIndex: number | undefined
-): TaskItem[] {
-  const sortedServerHistory = serverHistory.sort(
-    (a, b) => b.prompt[0] - a.prompt[0]
-  )
-
-  const serverPromptIds = new Set(
-    sortedServerHistory.map((item) => item.prompt[1])
-  )
-
-  // If undefined, treat as initial sync (all items are new)
-  const itemsAddedSinceLastSync =
-    lastKnownQueueIndex === undefined
-      ? sortedServerHistory
-      : sortedServerHistory.filter(
-          (item) => item.prompt[0] > lastKnownQueueIndex
-        )
-
-  const clientItemsStillOnServer = clientHistory.filter((item) =>
-    serverPromptIds.has(item.prompt[1])
-  )
-
-  // Merge new and reused items, sort by queueIndex descending, limit to maxItems
-  return [...itemsAddedSinceLastSync, ...clientItemsStillOnServer]
-    .sort((a, b) => b.prompt[0] - a.prompt[0])
-    .slice(0, maxItems)
-}
-
-/**
- * V2 reconciliation: PromptId-based merging because V2 assigns synthetic
- * priorities after sorting by timestamp.
- *
- * Sort order: Sorts serverHistory by queueIndex descending (newest first) to ensure
- * consistent ordering. JavaScript .filter() maintains iteration order, so filtered
- * results remain sorted. clientHistory is assumed already sorted from previous update.
- *
- * @returns All items to display, sorted by queueIndex descending (newest first)
- */
-function reconcileHistoryV2(
-  serverHistory: TaskItem[],
-  clientHistory: TaskItem[],
-  maxItems: number
-): TaskItem[] {
-  const sortedServerHistory = serverHistory.sort(
-    (a, b) => b.prompt[0] - a.prompt[0]
-  )
-
-  const serverPromptIds = new Set(
-    sortedServerHistory.map((item) => item.prompt[1])
-  )
-  const clientPromptIds = new Set(clientHistory.map((item) => item.prompt[1]))
-
-  const newItems = sortedServerHistory.filter(
-    (item) => !clientPromptIds.has(item.prompt[1])
-  )
-
-  const clientItemsStillOnServer = clientHistory.filter((item) =>
-    serverPromptIds.has(item.prompt[1])
-  )
-
-  // Merge new and reused items, sort by queueIndex descending, limit to maxItems
-  return [...newItems, ...clientItemsStillOnServer]
-    .sort((a, b) => b.prompt[0] - a.prompt[0])
-    .slice(0, maxItems)
-}
-
-/**
- * Reconciles server history with client history.
- * Automatically uses V1 (queueIndex-based) or V2 (promptId-based) algorithm based on
- * distribution type.
- *
- * @param serverHistory - Server's current history items
- * @param clientHistory - Client's existing history items
- * @param maxItems - Maximum number of items to return
- * @param lastKnownQueueIndex - Last queue index seen (V1 only, optional for V2)
- * @returns All items that should be displayed, sorted by queueIndex descending
- */
-export function reconcileHistory(
-  serverHistory: TaskItem[],
-  clientHistory: TaskItem[],
-  maxItems: number,
-  lastKnownQueueIndex?: number
-): TaskItem[] {
-  if (isCloud) {
-    return reconcileHistoryV2(serverHistory, clientHistory, maxItems)
-  }
-  return reconcileHistoryV1(
-    serverHistory,
-    clientHistory,
-    maxItems,
-    lastKnownQueueIndex
-  )
-}
diff --git a/src/platform/remote/comfyui/history/types/historyV1Types.ts b/src/platform/remote/comfyui/history/types/historyV1Types.ts
deleted file mode 100644
index f7bff7a848..0000000000
--- a/src/platform/remote/comfyui/history/types/historyV1Types.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-/**
- * @fileoverview History V1 types - Public interface used throughout the app
- * @module platform/remote/comfyui/history/types/historyV1Types
- *
- * These types represent the V1 history format that the application expects.
- * Both desktop (direct V1 API) and cloud (V2 API + adapter) return data in this format.
- */
-
-import type { HistoryTaskItem, TaskPrompt } from '@/schemas/apiSchema'
-
-export interface HistoryV1Response {
-  History: HistoryTaskItem[]
-}
-
-export type { HistoryTaskItem, TaskPrompt }
diff --git a/src/platform/remote/comfyui/history/types/historyV2Types.ts b/src/platform/remote/comfyui/history/types/historyV2Types.ts
deleted file mode 100644
index 08580edb9d..0000000000
--- a/src/platform/remote/comfyui/history/types/historyV2Types.ts
+++ /dev/null
@@ -1,46 +0,0 @@
-/**
- * @fileoverview History V2 types and schemas - Internal cloud API format
- * @module platform/remote/comfyui/history/types/historyV2Types
- *
- * These types and schemas represent the V2 history format returned by the cloud API.
- * They are only used internally and are converted to V1 format via adapter.
- *
- * IMPORTANT: These types should NOT be used outside this history module.
- */
-
-import { z } from 'zod'
-
-import {
-  zExtraData,
-  zPromptId,
-  zQueueIndex,
-  zStatus,
-  zTaskMeta,
-  zTaskOutput
-} from '@/schemas/apiSchema'
-
-const zTaskPromptV2 = z.object({
-  priority: zQueueIndex,
-  prompt_id: zPromptId,
-  extra_data: zExtraData
-})
-
-const zRawHistoryItemV2 = z.object({
-  prompt_id: zPromptId,
-  prompt: zTaskPromptV2,
-  status: zStatus.optional(),
-  outputs: zTaskOutput,
-  meta: zTaskMeta.optional(),
-  create_time: z.number().int().optional()
-})
-
-const zHistoryResponseV2 = z.object({
-  history: z.array(zRawHistoryItemV2)
-})
-
-export type TaskPromptV2 = z.infer<typeof zTaskPromptV2>
-export type RawHistoryItemV2 = z.infer<typeof zRawHistoryItemV2>
-export type HistoryResponseV2 = z.infer<typeof zHistoryResponseV2>
-export type TaskOutput = z.infer<typeof zTaskOutput>
-
-export { zRawHistoryItemV2 }
diff --git a/src/platform/remote/comfyui/history/types/index.ts b/src/platform/remote/comfyui/history/types/index.ts
deleted file mode 100644
index d49f66ffed..0000000000
--- a/src/platform/remote/comfyui/history/types/index.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-/**
- * @fileoverview Public history types export
- * @module platform/remote/comfyui/history/types
- *
- * Only V1 types are exported publicly - the rest of the app
- * should never need to know about V2 types or implementation details.
- */
-
-export type * from './historyV1Types'
diff --git a/src/platform/remote/comfyui/jobs/fetchJobs.test.ts b/src/platform/remote/comfyui/jobs/fetchJobs.test.ts
index 56f7fdef6e..ec32cb3b38 100644
--- a/src/platform/remote/comfyui/jobs/fetchJobs.test.ts
+++ b/src/platform/remote/comfyui/jobs/fetchJobs.test.ts
@@ -16,17 +16,13 @@ type JobsListResponse = z.infer<typeof zJobsListResponse>
 
 function createMockJob(
   id: string,
-  status: 'pending' | 'in_progress' | 'completed' = 'completed',
+  status: 'pending' | 'in_progress' | 'completed' | 'failed' = 'completed',
   overrides: Partial<RawJobListItem> = {}
 ): RawJobListItem {
   return {
     id,
     status,
     create_time: Date.now(),
-    execution_start_time: null,
-    execution_end_time: null,
-    preview_output: null,
-    outputs_count: 0,
     ...overrides
   }
 }
@@ -63,7 +59,7 @@ describe('fetchJobs', () => {
       const result = await fetchHistory(mockFetch)
 
       expect(mockFetch).toHaveBeenCalledWith(
-        '/jobs?status=completed&limit=200&offset=0'
+        '/jobs?status=completed,failed,cancelled&limit=200&offset=0'
       )
       expect(result).toHaveLength(2)
       expect(result[0].id).toBe('job1')
@@ -113,7 +109,7 @@ describe('fetchJobs', () => {
       const result = await fetchHistory(mockFetch, 200, 5)
 
       expect(mockFetch).toHaveBeenCalledWith(
-        '/jobs?status=completed&limit=200&offset=5'
+        '/jobs?status=completed,failed,cancelled&limit=200&offset=5'
       )
       // Priority base is total - offset = 10 - 5 = 5
       expect(result[0].priority).toBe(5) // (total - offset) - 0
diff --git a/src/platform/remote/comfyui/jobs/fetchJobs.ts b/src/platform/remote/comfyui/jobs/fetchJobs.ts
index f5facceff9..defaed16c7 100644
--- a/src/platform/remote/comfyui/jobs/fetchJobs.ts
+++ b/src/platform/remote/comfyui/jobs/fetchJobs.ts
@@ -68,7 +68,7 @@ function assignPriority(
 }
 
 /**
- * Fetches history (completed jobs)
+ * Fetches history (terminal state jobs: completed, failed, cancelled)
  * Assigns synthetic priority starting from total (lower than queue jobs).
  */
 export async function fetchHistory(
@@ -78,7 +78,7 @@ export async function fetchHistory(
 ): Promise<JobListItem[]> {
   const { jobs, total } = await fetchJobsRaw(
     fetchApi,
-    ['completed'],
+    ['completed', 'failed', 'cancelled'],
     maxItems,
     offset
   )
diff --git a/src/platform/remote/comfyui/jobs/jobTypes.ts b/src/platform/remote/comfyui/jobs/jobTypes.ts
index 8553483095..48e2bfbc46 100644
--- a/src/platform/remote/comfyui/jobs/jobTypes.ts
+++ b/src/platform/remote/comfyui/jobs/jobTypes.ts
@@ -21,12 +21,15 @@ const zJobStatus = z.enum([
 const zPreviewOutput = z.object({
   filename: z.string(),
   subfolder: z.string(),
-  type: resultItemType
+  type: resultItemType,
+  nodeId: z.string(),
+  mediaType: z.string()
 })
 
 /**
- * Execution error details for error jobs.
- * Contains the same structure as ExecutionErrorWsMessage from WebSocket.
+ * Execution error from Jobs API.
+ * Similar to ExecutionErrorWsMessage but with optional prompt_id/timestamp/executed
+ * since these may not be present in stored errors or infrastructure-generated errors.
  */
 const zExecutionError = z
   .object({
@@ -43,6 +46,8 @@ const zExecutionError = z
   })
   .passthrough()
 
+export type ExecutionError = z.infer<typeof zExecutionError>
+
 /**
  * Raw job from API - uses passthrough to allow extra fields
  */
@@ -105,3 +110,9 @@ export type RawJobListItem = z.infer<typeof zRawJobListItem>
 /** Job list item with priority always set (server-provided or synthetic) */
 export type JobListItem = RawJobListItem & { priority: number }
 export type JobDetail = z.infer<typeof zJobDetail>
+
+/** Task type used in the API (queue vs history endpoints) */
+export type APITaskType = 'queue' | 'history'
+
+/** Internal task type derived from job status for UI display */
+export type TaskType = 'Running' | 'Pending' | 'History'
diff --git a/src/platform/workflow/cloud/getWorkflowFromHistory.test.ts b/src/platform/workflow/cloud/getWorkflowFromHistory.test.ts
index fede0e8644..8102a711c7 100644
--- a/src/platform/workflow/cloud/getWorkflowFromHistory.test.ts
+++ b/src/platform/workflow/cloud/getWorkflowFromHistory.test.ts
@@ -1,11 +1,13 @@
 import { describe, expect, it, vi } from 'vitest'
 
+import type { JobDetail } from '@/platform/remote/comfyui/jobs/jobTypes'
 import type { ComfyWorkflowJSON } from '@/platform/workflow/validation/schemas/workflowSchema'
-import { getWorkflowFromHistory } from '@/platform/workflow/cloud/getWorkflowFromHistory'
+import {
+  extractWorkflow,
+  fetchJobDetail
+} from '@/platform/remote/comfyui/jobs/fetchJobs'
 
 const mockWorkflow: ComfyWorkflowJSON = {
-  id: 'test-workflow-id',
-  revision: 0,
   last_node_id: 5,
   last_link_id: 3,
   nodes: [],
@@ -16,75 +18,63 @@ const mockWorkflow: ComfyWorkflowJSON = {
   version: 0.4
 }
 
-const mockHistoryResponse = {
-  'test-prompt-id': {
-    prompt: {
-      priority: 1,
-      prompt_id: 'test-prompt-id',
-      extra_data: {
-        client_id: 'test-client',
-        extra_pnginfo: {
-          workflow: mockWorkflow
-        }
+// Jobs API detail response structure (matches actual /jobs/{id} response)
+// workflow is nested at: workflow.extra_data.extra_pnginfo.workflow
+const mockJobDetailResponse: JobDetail = {
+  id: 'test-prompt-id',
+  status: 'completed',
+  create_time: 1234567890,
+  update_time: 1234567900,
+  workflow: {
+    extra_data: {
+      extra_pnginfo: {
+        workflow: mockWorkflow
       }
-    },
-    outputs: {},
-    status: {
-      status_str: 'success',
-      completed: true,
-      messages: []
+    }
+  },
+  outputs: {
+    '20': {
+      images: [
+        { filename: 'test.png', subfolder: '', type: 'output' },
+        { filename: 'test2.png', subfolder: '', type: 'output' }
+      ]
     }
   }
 }
 
-describe('getWorkflowFromHistory', () => {
-  it('should fetch workflow from /history_v2/{prompt_id} endpoint', async () => {
+describe('fetchJobDetail', () => {
+  it('should fetch job detail from /jobs/{prompt_id} endpoint', async () => {
     const mockFetchApi = vi.fn().mockResolvedValue({
-      json: async () => mockHistoryResponse
+      ok: true,
+      json: async () => mockJobDetailResponse
     })
 
-    await getWorkflowFromHistory(mockFetchApi, 'test-prompt-id')
+    await fetchJobDetail(mockFetchApi, 'test-prompt-id')
 
-    expect(mockFetchApi).toHaveBeenCalledWith('/history_v2/test-prompt-id')
+    expect(mockFetchApi).toHaveBeenCalledWith('/jobs/test-prompt-id')
   })
 
-  it('should extract and return workflow from response', async () => {
+  it('should return job detail with workflow and outputs', async () => {
     const mockFetchApi = vi.fn().mockResolvedValue({
-      json: async () => mockHistoryResponse
+      ok: true,
+      json: async () => mockJobDetailResponse
     })
 
-    const result = await getWorkflowFromHistory(mockFetchApi, 'test-prompt-id')
+    const result = await fetchJobDetail(mockFetchApi, 'test-prompt-id')
 
-    expect(result).toEqual(mockWorkflow)
+    expect(result).toBeDefined()
+    expect(result?.id).toBe('test-prompt-id')
+    expect(result?.outputs).toEqual(mockJobDetailResponse.outputs)
+    expect(result?.workflow).toBeDefined()
   })
 
-  it('should return undefined when prompt_id not found in response', async () => {
+  it('should return undefined when job not found (non-OK response)', async () => {
     const mockFetchApi = vi.fn().mockResolvedValue({
-      json: async () => ({})
+      ok: false,
+      status: 404
     })
 
-    const result = await getWorkflowFromHistory(mockFetchApi, 'nonexistent-id')
-
-    expect(result).toBeUndefined()
-  })
-
-  it('should return undefined when workflow is missing from extra_pnginfo', async () => {
-    const mockFetchApi = vi.fn().mockResolvedValue({
-      json: async () => ({
-        'test-prompt-id': {
-          prompt: {
-            priority: 1,
-            prompt_id: 'test-prompt-id',
-            extra_data: {
-              client_id: 'test-client'
-            }
-          },
-          outputs: {}
-        }
-      })
-    })
-
-    const result = await getWorkflowFromHistory(mockFetchApi, 'test-prompt-id')
+    const result = await fetchJobDetail(mockFetchApi, 'nonexistent-id')
 
     expect(result).toBeUndefined()
   })
@@ -92,19 +82,45 @@ describe('getWorkflowFromHistory', () => {
   it('should handle fetch errors gracefully', async () => {
     const mockFetchApi = vi.fn().mockRejectedValue(new Error('Network error'))
 
-    const result = await getWorkflowFromHistory(mockFetchApi, 'test-prompt-id')
+    const result = await fetchJobDetail(mockFetchApi, 'test-prompt-id')
 
     expect(result).toBeUndefined()
   })
 
   it('should handle malformed JSON responses', async () => {
     const mockFetchApi = vi.fn().mockResolvedValue({
+      ok: true,
       json: async () => {
         throw new Error('Invalid JSON')
       }
     })
 
-    const result = await getWorkflowFromHistory(mockFetchApi, 'test-prompt-id')
+    const result = await fetchJobDetail(mockFetchApi, 'test-prompt-id')
+
+    expect(result).toBeUndefined()
+  })
+})
+
+describe('extractWorkflow', () => {
+  it('should extract workflow from job detail', async () => {
+    const result = await extractWorkflow(mockJobDetailResponse)
+
+    expect(result).toEqual(mockWorkflow)
+  })
+
+  it('should return undefined when job is undefined', async () => {
+    const result = await extractWorkflow(undefined)
+
+    expect(result).toBeUndefined()
+  })
+
+  it('should return undefined when workflow is missing', async () => {
+    const jobWithoutWorkflow: JobDetail = {
+      ...mockJobDetailResponse,
+      workflow: {}
+    }
+
+    const result = await extractWorkflow(jobWithoutWorkflow)
 
     expect(result).toBeUndefined()
   })
diff --git a/src/platform/workflow/cloud/getWorkflowFromHistory.ts b/src/platform/workflow/cloud/getWorkflowFromHistory.ts
deleted file mode 100644
index 8c9027e308..0000000000
--- a/src/platform/workflow/cloud/getWorkflowFromHistory.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-import type { ComfyWorkflowJSON } from '@/platform/workflow/validation/schemas/workflowSchema'
-import type { PromptId } from '@/schemas/apiSchema'
-
-export async function getWorkflowFromHistory(
-  fetchApi: (url: string) => Promise<Response>,
-  promptId: PromptId
-): Promise<ComfyWorkflowJSON | undefined> {
-  try {
-    const res = await fetchApi(`/history_v2/${promptId}`)
-    const json = await res.json()
-
-    const historyItem = json[promptId]
-    if (!historyItem) return undefined
-
-    const workflow = historyItem.prompt?.extra_data?.extra_pnginfo?.workflow
-    return workflow ?? undefined
-  } catch (error) {
-    console.error(`Failed to fetch workflow for prompt ${promptId}:`, error)
-    return undefined
-  }
-}
diff --git a/src/platform/workflow/cloud/index.ts b/src/platform/workflow/cloud/index.ts
deleted file mode 100644
index 1f54224027..0000000000
--- a/src/platform/workflow/cloud/index.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * Cloud: Fetches workflow by prompt_id. Desktop: Returns undefined (workflows already in history).
- */
-import { isCloud } from '@/platform/distribution/types'
-
-import { getWorkflowFromHistory as cloudImpl } from './getWorkflowFromHistory'
-
-export const getWorkflowFromHistory = isCloud
-  ? cloudImpl
-  : async () => undefined
diff --git a/src/schemas/apiSchema.ts b/src/schemas/apiSchema.ts
index 11b31841a3..ba0a4429df 100644
--- a/src/schemas/apiSchema.ts
+++ b/src/schemas/apiSchema.ts
@@ -1,18 +1,14 @@
 import { z } from 'zod'
 
 import { LinkMarkerShape } from '@/lib/litegraph/src/litegraph'
-import {
-  zComfyWorkflow,
-  zNodeId
-} from '@/platform/workflow/validation/schemas/workflowSchema'
+import { zNodeId } from '@/platform/workflow/validation/schemas/workflowSchema'
 import { colorPalettesSchema } from '@/schemas/colorPaletteSchema'
 import { zKeybinding } from '@/schemas/keyBindingSchema'
 import { NodeBadgeMode } from '@/types/nodeSource'
 import { LinkReleaseTriggerAction } from '@/types/searchBoxTypes'
 
 const zNodeType = z.string()
-export const zQueueIndex = z.number()
-export const zPromptId = z.string()
+const zPromptId = z.string()
 export type PromptId = z.infer<typeof zPromptId>
 export const resultItemType = z.enum(['input', 'output', 'temp'])
 export type ResultItemType = z.infer<typeof resultItemType>
@@ -96,7 +92,7 @@ const zExecutionInterruptedWsMessage = zExecutionWsMessageBase.extend({
   node_type: zNodeType,
   executed: z.array(zNodeId)
 })
-export const zExecutionErrorWsMessage = zExecutionWsMessageBase.extend({
+const zExecutionErrorWsMessage = zExecutionWsMessageBase.extend({
   node_id: zNodeId,
   node_type: zNodeType,
   executed: z.array(zNodeId),
@@ -170,136 +166,9 @@ export type AssetDownloadWsMessage = z.infer<typeof zAssetDownloadWsMessage>
 
 export type NotificationWsMessage = z.infer<typeof zNotificationWsMessage>
 
-const zPromptInputItem = z.object({
-  inputs: z.record(z.string(), z.any()),
-  class_type: zNodeType
-})
-
-const zPromptInputs = z.record(zPromptInputItem)
-
-const zExtraPngInfo = z
-  .object({
-    workflow: zComfyWorkflow
-  })
-  .passthrough()
-
-export const zExtraData = z
-  .object({
-    /** extra_pnginfo can be missing is backend execution gets a validation error. */
-    extra_pnginfo: zExtraPngInfo.optional(),
-    client_id: z.string().optional(),
-    // Cloud/Adapters: creation time in milliseconds when available
-    create_time: z.number().int().optional()
-  })
-  // Allow backend/adapters/extensions to add arbitrary metadata
-  .passthrough()
-const zOutputsToExecute = z.array(zNodeId)
-
-const zExecutionStartMessage = z.tuple([
-  z.literal('execution_start'),
-  zExecutionStartWsMessage
-])
-
-const zExecutionSuccessMessage = z.tuple([
-  z.literal('execution_success'),
-  zExecutionSuccessWsMessage
-])
-
-const zExecutionCachedMessage = z.tuple([
-  z.literal('execution_cached'),
-  zExecutionCachedWsMessage
-])
-
-const zExecutionInterruptedMessage = z.tuple([
-  z.literal('execution_interrupted'),
-  zExecutionInterruptedWsMessage
-])
-
-const zExecutionErrorMessage = z.tuple([
-  z.literal('execution_error'),
-  zExecutionErrorWsMessage
-])
-
-const zStatusMessage = z.union([
-  zExecutionStartMessage,
-  zExecutionSuccessMessage,
-  zExecutionCachedMessage,
-  zExecutionInterruptedMessage,
-  zExecutionErrorMessage
-])
-
-export const zStatus = z.object({
-  status_str: z.enum(['success', 'error']),
-  completed: z.boolean(),
-  messages: z.array(zStatusMessage)
-})
-
-const zTaskPrompt = z.tuple([
-  zQueueIndex,
-  zPromptId,
-  zPromptInputs,
-  zExtraData,
-  zOutputsToExecute
-])
-
-const zRunningTaskItem = z.object({
-  taskType: z.literal('Running'),
-  prompt: zTaskPrompt,
-  // @Deprecated
-  remove: z.object({
-    name: z.literal('Cancel'),
-    cb: z.function()
-  })
-})
-
-const zPendingTaskItem = z.object({
-  taskType: z.literal('Pending'),
-  prompt: zTaskPrompt
-})
-
 export const zTaskOutput = z.record(zNodeId, zOutputs)
-
-const zNodeOutputsMeta = z.object({
-  node_id: zNodeId,
-  display_node: zNodeId,
-  prompt_id: zPromptId.optional(),
-  read_node_id: zNodeId.optional()
-})
-
-export const zTaskMeta = z.record(zNodeId, zNodeOutputsMeta)
-
-const zHistoryTaskItem = z.object({
-  taskType: z.literal('History'),
-  prompt: zTaskPrompt,
-  status: zStatus.optional(),
-  outputs: zTaskOutput,
-  meta: zTaskMeta.optional()
-})
-
-const zTaskItem = z.union([
-  zRunningTaskItem,
-  zPendingTaskItem,
-  zHistoryTaskItem
-])
-
-const zTaskType = z.union([
-  z.literal('Running'),
-  z.literal('Pending'),
-  z.literal('History')
-])
-
-export type TaskType = z.infer<typeof zTaskType>
-export type TaskPrompt = z.infer<typeof zTaskPrompt>
-export type TaskStatus = z.infer<typeof zStatus>
 export type TaskOutput = z.infer<typeof zTaskOutput>
 
-// `/queue`
-export type RunningTaskItem = z.infer<typeof zRunningTaskItem>
-export type PendingTaskItem = z.infer<typeof zPendingTaskItem>
-// `/history`
-export type HistoryTaskItem = z.infer<typeof zHistoryTaskItem>
-export type TaskItem = z.infer<typeof zTaskItem>
-
 const zEmbeddingsResponse = z.array(z.string())
 const zExtensionsResponse = z.array(z.string())
 const zError = z.object({
diff --git a/src/scripts/api.ts b/src/scripts/api.ts
index 822773c0d6..67f98826e0 100644
--- a/src/scripts/api.ts
+++ b/src/scripts/api.ts
@@ -10,6 +10,7 @@ import type {
 } from '@/platform/assets/schemas/assetSchema'
 import { isCloud } from '@/platform/distribution/types'
 import { useToastStore } from '@/platform/updates/common/toastStore'
+import type { IFuseOptions } from 'fuse.js'
 import {
   type TemplateInfo,
   type WorkflowTemplates
@@ -31,16 +32,13 @@ import type {
   ExecutionSuccessWsMessage,
   ExtensionsResponse,
   FeatureFlagsWsMessage,
-  HistoryTaskItem,
   LogsRawResponse,
   LogsWsMessage,
   NotificationWsMessage,
-  PendingTaskItem,
   ProgressStateWsMessage,
   ProgressTextWsMessage,
   ProgressWsMessage,
   PromptResponse,
-  RunningTaskItem,
   Settings,
   StatusWsMessage,
   StatusWsMessageStatus,
@@ -49,12 +47,19 @@ import type {
   UserDataFullInfo,
   PreviewMethod
 } from '@/schemas/apiSchema'
+import type {
+  JobDetail,
+  JobListItem
+} from '@/platform/remote/comfyui/jobs/jobTypes'
 import type { ComfyNodeDef } from '@/schemas/nodeDefSchema'
 import type { useFirebaseAuthStore } from '@/stores/firebaseAuthStore'
 import type { AuthHeader } from '@/types/authTypes'
 import type { NodeExecutionId } from '@/types/nodeIdentification'
-import { fetchHistory } from '@/platform/remote/comfyui/history'
-import type { IFuseOptions } from 'fuse.js'
+import {
+  fetchHistory,
+  fetchJobDetail,
+  fetchQueue
+} from '@/platform/remote/comfyui/jobs/fetchJobs'
 
 interface QueuePromptRequestBody {
   client_id: string
@@ -670,7 +675,6 @@ export class ComfyApi extends EventTarget {
             case 'logs':
             case 'b_preview':
             case 'notification':
-            case 'asset_download':
               this.dispatchCustomEvent(msg.type, msg.data)
               break
             case 'feature_flags':
@@ -893,53 +897,13 @@ export class ComfyApi extends EventTarget {
    * @returns The currently running and queued items
    */
   async getQueue(): Promise<{
-    Running: RunningTaskItem[]
-    Pending: PendingTaskItem[]
+    Running: JobListItem[]
+    Pending: JobListItem[]
   }> {
     try {
-      const res = await this.fetchApi('/queue')
-      const data = await res.json()
-      // Normalize queue tuple shape across backends:
-      // - Backend (V1): [idx, prompt_id, inputs, extra_data(object), outputs_to_execute(array)]
-      // - Cloud:        [idx, prompt_id, inputs, outputs_to_execute(array), metadata(object{create_time})]
-      const normalizeQueuePrompt = (prompt: any): any => {
-        if (!Array.isArray(prompt)) return prompt
-        // Ensure 5-tuple
-        const p = prompt.slice(0, 5)
-        const fourth = p[3]
-        const fifth = p[4]
-        // Cloud shape: 4th is array, 5th is metadata object
-        if (
-          Array.isArray(fourth) &&
-          fifth &&
-          typeof fifth === 'object' &&
-          !Array.isArray(fifth)
-        ) {
-          const meta: any = fifth
-          const extraData = { ...meta }
-          return [p[0], p[1], p[2], extraData, fourth]
-        }
-        // V1 shape already: return as-is
-        return p
-      }
-      return {
-        // Running action uses a different endpoint for cancelling
-        Running: data.queue_running.map((prompt: any) => {
-          const np = normalizeQueuePrompt(prompt)
-          return {
-            taskType: 'Running',
-            prompt: np,
-            // prompt[1] is the prompt id
-            remove: { name: 'Cancel', cb: () => api.interrupt(np[1]) }
-          }
-        }),
-        Pending: data.queue_pending.map((prompt: any) => ({
-          taskType: 'Pending',
-          prompt: normalizeQueuePrompt(prompt)
-        }))
-      }
+      return await fetchQueue(this.fetchApi.bind(this))
     } catch (error) {
-      console.error(error)
+      console.error('Failed to fetch queue:', error)
       return { Running: [], Pending: [] }
     }
   }
@@ -951,7 +915,7 @@ export class ComfyApi extends EventTarget {
   async getHistory(
     max_items: number = 200,
     options?: { offset?: number }
-  ): Promise<{ History: HistoryTaskItem[] }> {
+  ): Promise<JobListItem[]> {
     try {
       return await fetchHistory(
         this.fetchApi.bind(this),
@@ -960,10 +924,19 @@ export class ComfyApi extends EventTarget {
       )
     } catch (error) {
       console.error(error)
-      return { History: [] }
+      return []
     }
   }
 
+  /**
+   * Gets detailed job info including outputs and workflow
+   * @param jobId The job/prompt ID
+   * @returns Full job details or undefined if not found
+   */
+  async getJobDetail(jobId: string): Promise<JobDetail | undefined> {
+    return fetchJobDetail(this.fetchApi.bind(this), jobId)
+  }
+
   /**
    * Gets system & device stats
    * @returns System stats such as python version, OS, per device info
@@ -1273,29 +1246,6 @@ export class ComfyApi extends EventTarget {
     }
   }
 
-  /**
-   * Gets the Fuse options from the server.
-   *
-   * @returns The Fuse options, or null if not found or invalid
-   */
-  async getFuseOptions(): Promise<IFuseOptions<TemplateInfo> | null> {
-    try {
-      const res = await axios.get(
-        this.fileURL('/templates/fuse_options.json'),
-        {
-          headers: {
-            'Content-Type': 'application/json'
-          }
-        }
-      )
-      const contentType = res.headers['content-type']
-      return contentType?.includes('application/json') ? res.data : null
-    } catch (error) {
-      console.error('Error loading fuse options:', error)
-      return null
-    }
-  }
-
   /**
    * Gets the custom nodes i18n data from the server.
    *
@@ -1331,6 +1281,24 @@ export class ComfyApi extends EventTarget {
   getServerFeatures(): Record<string, unknown> {
     return { ...this.serverFeatureFlags }
   }
+
+  async getFuseOptions(): Promise<IFuseOptions<TemplateInfo> | null> {
+    try {
+      const res = await axios.get(
+        this.fileURL('/templates/fuse_options.json'),
+        {
+          headers: {
+            'Content-Type': 'application/json'
+          }
+        }
+      )
+      const contentType = res.headers['content-type']
+      return contentType?.includes('application/json') ? res.data : null
+    } catch (error) {
+      console.error('Error loading fuse options:', error)
+      return null
+    }
+  }
 }
 
 export const api = new ComfyApi()
diff --git a/src/scripts/ui.ts b/src/scripts/ui.ts
index 6a428c974e..9a0f9d5cca 100644
--- a/src/scripts/ui.ts
+++ b/src/scripts/ui.ts
@@ -1,6 +1,6 @@
 import { useSettingStore } from '@/platform/settings/settingStore'
 import { WORKFLOW_ACCEPT_STRING } from '@/platform/workflow/core/types/formats'
-import { type StatusWsMessageStatus, type TaskItem } from '@/schemas/apiSchema'
+import { type StatusWsMessageStatus } from '@/schemas/apiSchema'
 import { useDialogService } from '@/services/dialogService'
 import { isCloud } from '@/platform/distribution/types'
 import { useTelemetry } from '@/platform/telemetry'
@@ -33,6 +33,17 @@ type Props = {
 
 type Children = Element[] | Element | string | string[]
 
+/**
+ * @deprecated Legacy queue item structure from old history API.
+ * Will be removed when ComfyList is migrated to Jobs API.
+ */
+interface LegacyQueueItem {
+  prompt: [unknown, string, unknown, { extra_pnginfo: { workflow: unknown } }]
+  outputs?: Record<string, unknown>
+  meta?: Record<string, { display_node?: string }>
+  remove?: { name: string; cb: () => Promise<void> | void }
+}
+
 type ElementType<K extends string> = K extends keyof HTMLElementTagNameMap
   ? HTMLElementTagNameMap[K]
   : HTMLElement
@@ -259,29 +270,28 @@ class ComfyList {
         $el('div.comfy-list-items', [
           // @ts-expect-error fixme ts strict error
           ...(this.#reverse ? items[section].reverse() : items[section]).map(
-            (item: TaskItem) => {
+            (item: LegacyQueueItem) => {
               // Allow items to specify a custom remove action (e.g. for interrupt current prompt)
-              const removeAction =
-                'remove' in item
-                  ? item.remove
-                  : {
-                      name: 'Delete',
-                      cb: () => api.deleteItem(this.#type, item.prompt[1])
-                    }
+              const removeAction = item.remove ?? {
+                name: 'Delete',
+                cb: () => api.deleteItem(this.#type, item.prompt[1])
+              }
               return $el('div', { textContent: item.prompt[0] + ': ' }, [
                 $el('button', {
                   textContent: 'Load',
                   onclick: async () => {
                     await app.loadGraphData(
-                      // @ts-expect-error fixme ts strict error
-                      item.prompt[3].extra_pnginfo.workflow,
+                      item.prompt[3].extra_pnginfo.workflow as Parameters<
+                        typeof app.loadGraphData
+                      >[0],
                       true,
                       false
                     )
-                    if ('outputs' in item) {
+                    if ('outputs' in item && item.outputs) {
                       app.nodeOutputs = {}
                       for (const [key, value] of Object.entries(item.outputs)) {
                         const realKey = item['meta']?.[key]?.display_node ?? key
+                        // @ts-expect-error fixme ts strict error
                         app.nodeOutputs[realKey] = value
                       }
                     }
diff --git a/src/services/jobOutputCache.test.ts b/src/services/jobOutputCache.test.ts
new file mode 100644
index 0000000000..38e47e973e
--- /dev/null
+++ b/src/services/jobOutputCache.test.ts
@@ -0,0 +1,278 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+
+import type {
+  JobDetail,
+  JobListItem
+} from '@/platform/remote/comfyui/jobs/jobTypes'
+import { ResultItemImpl, TaskItemImpl } from '@/stores/queueStore'
+
+vi.mock('@/platform/remote/comfyui/jobs/fetchJobs', () => ({
+  fetchJobDetail: vi.fn(),
+  extractWorkflow: vi.fn()
+}))
+
+function createResultItem(url: string, supportsPreview = true): ResultItemImpl {
+  const item = new ResultItemImpl({
+    filename: url,
+    subfolder: '',
+    type: 'output',
+    nodeId: 'node-1',
+    mediaType: supportsPreview ? 'images' : 'unknown'
+  })
+  Object.defineProperty(item, 'url', { get: () => url })
+  Object.defineProperty(item, 'supportsPreview', { get: () => supportsPreview })
+  return item
+}
+
+function createMockJob(id: string, outputsCount = 1): JobListItem {
+  return {
+    id,
+    status: 'completed',
+    create_time: Date.now(),
+    preview_output: null,
+    outputs_count: outputsCount,
+    priority: 0
+  }
+}
+
+function createTask(
+  preview?: ResultItemImpl,
+  allOutputs?: ResultItemImpl[],
+  outputsCount = 1
+): TaskItemImpl {
+  const job = createMockJob(
+    `task-${Math.random().toString(36).slice(2)}`,
+    outputsCount
+  )
+  const flatOutputs = allOutputs ?? (preview ? [preview] : [])
+  return new TaskItemImpl(job, {}, flatOutputs)
+}
+
+describe('jobOutputCache', () => {
+  beforeEach(() => {
+    vi.resetModules()
+    vi.clearAllMocks()
+  })
+
+  describe('findActiveIndex', () => {
+    it('returns index of matching URL', async () => {
+      const { findActiveIndex } = await import('@/services/jobOutputCache')
+      const items = [
+        createResultItem('a'),
+        createResultItem('b'),
+        createResultItem('c')
+      ]
+
+      expect(findActiveIndex(items, 'b')).toBe(1)
+    })
+
+    it('returns 0 when URL not found', async () => {
+      const { findActiveIndex } = await import('@/services/jobOutputCache')
+      const items = [createResultItem('a'), createResultItem('b')]
+
+      expect(findActiveIndex(items, 'missing')).toBe(0)
+    })
+
+    it('returns 0 when URL is undefined', async () => {
+      const { findActiveIndex } = await import('@/services/jobOutputCache')
+      const items = [createResultItem('a'), createResultItem('b')]
+
+      expect(findActiveIndex(items, undefined)).toBe(0)
+    })
+  })
+
+  describe('getOutputsForTask', () => {
+    it('returns previewable outputs directly when no lazy load needed', async () => {
+      const { getOutputsForTask } = await import('@/services/jobOutputCache')
+      const outputs = [createResultItem('p-1'), createResultItem('p-2')]
+      const task = createTask(undefined, outputs, 1)
+
+      const result = await getOutputsForTask(task)
+
+      expect(result).toEqual(outputs)
+    })
+
+    it('lazy loads when outputsCount > 1', async () => {
+      const { getOutputsForTask } = await import('@/services/jobOutputCache')
+      const previewOutput = createResultItem('preview')
+      const fullOutputs = [
+        createResultItem('full-1'),
+        createResultItem('full-2')
+      ]
+
+      const job = createMockJob('task-1', 3)
+      const task = new TaskItemImpl(job, {}, [previewOutput])
+      const loadedTask = new TaskItemImpl(job, {}, fullOutputs)
+      task.loadFullOutputs = vi.fn().mockResolvedValue(loadedTask)
+
+      const result = await getOutputsForTask(task)
+
+      expect(result).toEqual(fullOutputs)
+      expect(task.loadFullOutputs).toHaveBeenCalled()
+    })
+
+    it('caches loaded tasks', async () => {
+      const { getOutputsForTask } = await import('@/services/jobOutputCache')
+      const fullOutputs = [createResultItem('full-1')]
+
+      const job = createMockJob('task-1', 3)
+      const task = new TaskItemImpl(job, {}, [createResultItem('preview')])
+      const loadedTask = new TaskItemImpl(job, {}, fullOutputs)
+      task.loadFullOutputs = vi.fn().mockResolvedValue(loadedTask)
+
+      // First call should load
+      await getOutputsForTask(task)
+      expect(task.loadFullOutputs).toHaveBeenCalledTimes(1)
+
+      // Second call should use cache
+      await getOutputsForTask(task)
+      expect(task.loadFullOutputs).toHaveBeenCalledTimes(1)
+    })
+
+    it('falls back to preview outputs on load error', async () => {
+      const { getOutputsForTask } = await import('@/services/jobOutputCache')
+      const previewOutput = createResultItem('preview')
+
+      const job = createMockJob('task-1', 3)
+      const task = new TaskItemImpl(job, {}, [previewOutput])
+      task.loadFullOutputs = vi
+        .fn()
+        .mockRejectedValue(new Error('Network error'))
+
+      const result = await getOutputsForTask(task)
+
+      expect(result).toEqual([previewOutput])
+    })
+
+    it('returns null when request is superseded', async () => {
+      const { getOutputsForTask } = await import('@/services/jobOutputCache')
+      const job1 = createMockJob('task-1', 3)
+      const job2 = createMockJob('task-2', 3)
+
+      const task1 = new TaskItemImpl(job1, {}, [createResultItem('preview-1')])
+      const task2 = new TaskItemImpl(job2, {}, [createResultItem('preview-2')])
+
+      const loadedTask1 = new TaskItemImpl(job1, {}, [
+        createResultItem('full-1')
+      ])
+      const loadedTask2 = new TaskItemImpl(job2, {}, [
+        createResultItem('full-2')
+      ])
+
+      // Task1 loads slowly, task2 loads quickly
+      task1.loadFullOutputs = vi.fn().mockImplementation(
+        () =>
+          new Promise((resolve) => {
+            setTimeout(() => resolve(loadedTask1), 50)
+          })
+      )
+      task2.loadFullOutputs = vi.fn().mockResolvedValue(loadedTask2)
+
+      // Start task1, then immediately start task2
+      const promise1 = getOutputsForTask(task1)
+      const promise2 = getOutputsForTask(task2)
+
+      const [result1, result2] = await Promise.all([promise1, promise2])
+
+      // Task2 should succeed, task1 should return null (superseded)
+      expect(result1).toBeNull()
+      expect(result2).toEqual([createResultItem('full-2')])
+    })
+  })
+
+  describe('getJobDetail', () => {
+    it('fetches and caches job detail', async () => {
+      const { getJobDetail } = await import('@/services/jobOutputCache')
+      const { fetchJobDetail } =
+        await import('@/platform/remote/comfyui/jobs/fetchJobs')
+
+      const mockDetail: JobDetail = {
+        id: 'job-1',
+        status: 'completed',
+        create_time: Date.now(),
+        priority: 0,
+        outputs: {}
+      }
+      vi.mocked(fetchJobDetail).mockResolvedValue(mockDetail)
+
+      const result = await getJobDetail('job-1')
+
+      expect(result).toEqual(mockDetail)
+      expect(fetchJobDetail).toHaveBeenCalledWith(expect.any(Function), 'job-1')
+    })
+
+    it('returns cached job detail on subsequent calls', async () => {
+      const { getJobDetail } = await import('@/services/jobOutputCache')
+      const { fetchJobDetail } =
+        await import('@/platform/remote/comfyui/jobs/fetchJobs')
+
+      const mockDetail: JobDetail = {
+        id: 'job-2',
+        status: 'completed',
+        create_time: Date.now(),
+        priority: 0,
+        outputs: {}
+      }
+      vi.mocked(fetchJobDetail).mockResolvedValue(mockDetail)
+
+      // First call
+      await getJobDetail('job-2')
+      expect(fetchJobDetail).toHaveBeenCalledTimes(1)
+
+      // Second call should use cache
+      const result = await getJobDetail('job-2')
+      expect(result).toEqual(mockDetail)
+      expect(fetchJobDetail).toHaveBeenCalledTimes(1)
+    })
+
+    it('returns undefined on fetch error', async () => {
+      const { getJobDetail } = await import('@/services/jobOutputCache')
+      const { fetchJobDetail } =
+        await import('@/platform/remote/comfyui/jobs/fetchJobs')
+
+      vi.mocked(fetchJobDetail).mockRejectedValue(new Error('Network error'))
+
+      const result = await getJobDetail('job-error')
+
+      expect(result).toBeUndefined()
+    })
+  })
+
+  describe('getJobWorkflow', () => {
+    it('fetches job detail and extracts workflow', async () => {
+      const { getJobWorkflow } = await import('@/services/jobOutputCache')
+      const { fetchJobDetail, extractWorkflow } =
+        await import('@/platform/remote/comfyui/jobs/fetchJobs')
+
+      const mockDetail: JobDetail = {
+        id: 'job-wf',
+        status: 'completed',
+        create_time: Date.now(),
+        priority: 0,
+        outputs: {}
+      }
+      const mockWorkflow = { version: 1 }
+
+      vi.mocked(fetchJobDetail).mockResolvedValue(mockDetail)
+      vi.mocked(extractWorkflow).mockResolvedValue(mockWorkflow as any)
+
+      const result = await getJobWorkflow('job-wf')
+
+      expect(result).toEqual(mockWorkflow)
+      expect(extractWorkflow).toHaveBeenCalledWith(mockDetail)
+    })
+
+    it('returns undefined when job detail not found', async () => {
+      const { getJobWorkflow } = await import('@/services/jobOutputCache')
+      const { fetchJobDetail, extractWorkflow } =
+        await import('@/platform/remote/comfyui/jobs/fetchJobs')
+
+      vi.mocked(fetchJobDetail).mockResolvedValue(undefined)
+      vi.mocked(extractWorkflow).mockResolvedValue(undefined)
+
+      const result = await getJobWorkflow('missing')
+
+      expect(result).toBeUndefined()
+    })
+  })
+})
diff --git a/src/services/jobOutputCache.ts b/src/services/jobOutputCache.ts
new file mode 100644
index 0000000000..72722afd99
--- /dev/null
+++ b/src/services/jobOutputCache.ts
@@ -0,0 +1,103 @@
+/**
+ * @fileoverview Job output cache for caching and managing job data
+ * @module services/jobOutputCache
+ *
+ * Centralizes job output and detail caching with LRU eviction.
+ * Provides helpers for working with previewable outputs and workflows.
+ */
+
+import QuickLRU from '@alloc/quick-lru'
+
+import type { JobDetail } from '@/platform/remote/comfyui/jobs/jobTypes'
+import { extractWorkflow } from '@/platform/remote/comfyui/jobs/fetchJobs'
+import type { ComfyWorkflowJSON } from '@/platform/workflow/validation/schemas/workflowSchema'
+import { api } from '@/scripts/api'
+import { ResultItemImpl } from '@/stores/queueStore'
+import type { TaskItemImpl } from '@/stores/queueStore'
+
+const MAX_TASK_CACHE_SIZE = 50
+const MAX_JOB_DETAIL_CACHE_SIZE = 50
+
+const taskCache = new QuickLRU<string, TaskItemImpl>({
+  maxSize: MAX_TASK_CACHE_SIZE
+})
+const jobDetailCache = new QuickLRU<string, JobDetail>({
+  maxSize: MAX_JOB_DETAIL_CACHE_SIZE
+})
+
+// Track latest request to dedupe stale responses
+let latestTaskRequestId: string | null = null
+
+// ===== Task Output Caching =====
+
+export function findActiveIndex(
+  items: readonly ResultItemImpl[],
+  url?: string
+): number {
+  return ResultItemImpl.findByUrl(items, url)
+}
+
+/**
+ * Gets previewable outputs for a task, with lazy loading, caching, and request deduping.
+ * Returns null if a newer request superseded this one while loading.
+ */
+export async function getOutputsForTask(
+  task: TaskItemImpl
+): Promise<ResultItemImpl[] | null> {
+  const requestId = String(task.promptId)
+  latestTaskRequestId = requestId
+
+  const outputsCount = task.outputsCount ?? 0
+  const needsLazyLoad = outputsCount > 1
+
+  if (!needsLazyLoad) {
+    return [...task.previewableOutputs]
+  }
+
+  const cached = taskCache.get(requestId)
+  if (cached) {
+    return [...cached.previewableOutputs]
+  }
+
+  try {
+    const loadedTask = await task.loadFullOutputs()
+
+    // Check if request was superseded while loading
+    if (latestTaskRequestId !== requestId) {
+      return null
+    }
+
+    taskCache.set(requestId, loadedTask)
+    return [...loadedTask.previewableOutputs]
+  } catch (error) {
+    console.warn('Failed to load full outputs, using preview:', error)
+    return [...task.previewableOutputs]
+  }
+}
+
+// ===== Job Detail Caching =====
+
+export async function getJobDetail(
+  jobId: string
+): Promise<JobDetail | undefined> {
+  const cached = jobDetailCache.get(jobId)
+  if (cached) return cached
+
+  try {
+    const detail = await api.getJobDetail(jobId)
+    if (detail) {
+      jobDetailCache.set(jobId, detail)
+    }
+    return detail
+  } catch (error) {
+    console.warn('Failed to fetch job detail:', error)
+    return undefined
+  }
+}
+
+export async function getJobWorkflow(
+  jobId: string
+): Promise<ComfyWorkflowJSON | undefined> {
+  const detail = await getJobDetail(jobId)
+  return await extractWorkflow(detail)
+}
diff --git a/src/stores/assetsStore.test.ts b/src/stores/assetsStore.test.ts
index 1905a0177b..576c40d7e8 100644
--- a/src/stores/assetsStore.test.ts
+++ b/src/stores/assetsStore.test.ts
@@ -3,12 +3,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest'
 
 import { useAssetsStore } from '@/stores/assetsStore'
 import { api } from '@/scripts/api'
-import type {
-  HistoryTaskItem,
-  TaskPrompt,
-  TaskStatus,
-  TaskOutput
-} from '@/schemas/apiSchema'
+import type { JobListItem } from '@/platform/remote/comfyui/jobs/jobTypes'
 
 // Mock the api module
 vi.mock('@/scripts/api', () => ({
@@ -53,26 +48,25 @@ vi.mock('@/stores/queueStore', () => ({
           url: string
         }
       | undefined
+    public promptId: string
 
-    constructor(
-      public taskType: string,
-      public prompt: TaskPrompt,
-      public status: TaskStatus | undefined,
-      public outputs: TaskOutput
-    ) {
-      this.flatOutputs = this.outputs
-        ? [
-            {
-              supportsPreview: true,
-              filename: 'test.png',
-              subfolder: '',
-              type: 'output',
-              url: 'http://test.com/test.png'
-            }
-          ]
-        : []
+    constructor(public job: JobListItem) {
+      this.promptId = job.id
+      this.flatOutputs = [
+        {
+          supportsPreview: true,
+          filename: 'test.png',
+          subfolder: '',
+          type: 'output',
+          url: 'http://test.com/test.png'
+        }
+      ]
       this.previewOutput = this.flatOutputs[0]
     }
+
+    get previewableOutputs() {
+      return this.flatOutputs.filter((o) => o.supportsPreview)
+    }
   }
 }))
 
@@ -82,17 +76,17 @@ vi.mock('@/platform/assets/composables/media/assetMappers', () => ({
     id: `${type}-${index}`,
     name,
     size: 0,
-    created_at: new Date(Date.now() - index * 1000).toISOString(), // Unique timestamps
+    created_at: new Date(Date.now() - index * 1000).toISOString(),
     tags: [type],
     preview_url: `http://test.com/${name}`
   })),
   mapTaskOutputToAssetItem: vi.fn((task, output) => {
-    const index = parseInt(task.prompt[1].split('_')[1]) || 0
+    const index = parseInt(task.promptId.split('_')[1]) || 0
     return {
-      id: task.prompt[1], // Use promptId as asset ID
+      id: task.promptId,
       name: output.filename,
       size: 0,
-      created_at: new Date(Date.now() - index * 1000).toISOString(), // Unique timestamps
+      created_at: new Date(Date.now() - index * 1000).toISOString(),
       tags: ['output'],
       preview_url: output.url,
       user_metadata: {}
@@ -103,43 +97,20 @@ vi.mock('@/platform/assets/composables/media/assetMappers', () => ({
 describe('assetsStore - Refactored (Option A)', () => {
   let store: ReturnType<typeof useAssetsStore>
 
-  // Helper function to create mock history items
-  const createMockHistoryItem = (index: number): HistoryTaskItem => ({
-    taskType: 'History' as const,
-    prompt: [
-      1000 + index, // queueIndex
-      `prompt_${index}`, // promptId
-      {}, // promptInputs
-      {
-        extra_pnginfo: {
-          workflow: {
-            last_node_id: 1,
-            last_link_id: 1,
-            nodes: [],
-            links: [],
-            groups: [],
-            config: {},
-            version: 1
-          }
-        }
-      }, // extraData
-      [] // outputsToExecute
-    ],
-    status: {
-      status_str: 'success' as const,
-      completed: true,
-      messages: []
-    },
-    outputs: {
-      '1': {
-        images: [
-          {
-            filename: `output_${index}.png`,
-            subfolder: '',
-            type: 'output' as const
-          }
-        ]
-      }
+  // Helper function to create mock job items
+  const createMockJobItem = (index: number): JobListItem => ({
+    id: `prompt_${index}`,
+    status: 'completed',
+    create_time: 1000 + index,
+    update_time: 1000 + index,
+    last_state_update: 1000 + index,
+    priority: 1000 + index,
+    preview_output: {
+      filename: `output_${index}.png`,
+      subfolder: '',
+      type: 'output',
+      nodeId: 'node_1',
+      mediaType: 'images'
     }
   })
 
@@ -152,11 +123,9 @@ describe('assetsStore - Refactored (Option A)', () => {
   describe('Initial Load', () => {
     it('should load initial history items', async () => {
       const mockHistory = Array.from({ length: 10 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValue({
-        History: mockHistory
-      })
+      vi.mocked(api.getHistory).mockResolvedValue(mockHistory)
 
       await store.updateHistory()
 
@@ -169,11 +138,9 @@ describe('assetsStore - Refactored (Option A)', () => {
 
     it('should set hasMoreHistory to true when batch is full', async () => {
       const mockHistory = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValue({
-        History: mockHistory
-      })
+      vi.mocked(api.getHistory).mockResolvedValue(mockHistory)
 
       await store.updateHistory()
 
@@ -197,11 +164,9 @@ describe('assetsStore - Refactored (Option A)', () => {
     it('should accumulate items when loading more', async () => {
       // First batch - full BATCH_SIZE
       const firstBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: firstBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(firstBatch)
 
       await store.updateHistory()
       expect(store.historyAssets).toHaveLength(200)
@@ -209,11 +174,9 @@ describe('assetsStore - Refactored (Option A)', () => {
 
       // Second batch - different items
       const secondBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(200 + i)
+        createMockJobItem(200 + i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: secondBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(secondBatch)
 
       await store.loadMoreHistory()
 
@@ -225,24 +188,20 @@ describe('assetsStore - Refactored (Option A)', () => {
     it('should prevent duplicate items during pagination', async () => {
       // First batch - full BATCH_SIZE
       const firstBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: firstBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(firstBatch)
 
       await store.updateHistory()
       expect(store.historyAssets).toHaveLength(200)
 
       // Second batch with some duplicates
       const secondBatch = [
-        createMockHistoryItem(2), // Duplicate
-        createMockHistoryItem(5), // Duplicate
-        ...Array.from({ length: 198 }, (_, i) => createMockHistoryItem(200 + i)) // New
+        createMockJobItem(2), // Duplicate
+        createMockJobItem(5), // Duplicate
+        ...Array.from({ length: 198 }, (_, i) => createMockJobItem(200 + i)) // New
       ]
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: secondBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(secondBatch)
 
       await store.loadMoreHistory()
 
@@ -258,11 +217,9 @@ describe('assetsStore - Refactored (Option A)', () => {
     it('should stop loading when no more items', async () => {
       // First batch - less than BATCH_SIZE
       const firstBatch = Array.from({ length: 50 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: firstBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(firstBatch)
 
       await store.updateHistory()
       expect(store.hasMoreHistory).toBe(false)
@@ -277,11 +234,9 @@ describe('assetsStore - Refactored (Option A)', () => {
     it('should handle race conditions with concurrent loads', async () => {
       // Setup initial state with full batch
       const initialBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: initialBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(initialBatch)
       await store.updateHistory()
       expect(store.hasMoreHistory).toBe(true)
 
@@ -289,12 +244,10 @@ describe('assetsStore - Refactored (Option A)', () => {
       vi.mocked(api.getHistory).mockClear()
 
       // Setup slow API response
-      let resolveLoadMore: (value: { History: HistoryTaskItem[] }) => void
-      const loadMorePromise = new Promise<{ History: HistoryTaskItem[] }>(
-        (resolve) => {
-          resolveLoadMore = resolve
-        }
-      )
+      let resolveLoadMore: (value: JobListItem[]) => void
+      const loadMorePromise = new Promise<JobListItem[]>((resolve) => {
+        resolveLoadMore = resolve
+      })
       vi.mocked(api.getHistory).mockReturnValueOnce(loadMorePromise)
 
       // Start first loadMore
@@ -305,9 +258,9 @@ describe('assetsStore - Refactored (Option A)', () => {
 
       // Resolve
       const secondBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(200 + i)
+        createMockJobItem(200 + i)
       )
-      resolveLoadMore!({ History: secondBatch })
+      resolveLoadMore!(secondBatch)
 
       await Promise.all([firstLoad, secondLoad])
 
@@ -320,21 +273,17 @@ describe('assetsStore - Refactored (Option A)', () => {
 
       // Initial load
       const firstBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: firstBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(firstBatch)
       await store.updateHistory()
 
       // Load additional batches
       for (let batch = 1; batch < BATCH_COUNT; batch++) {
         const items = Array.from({ length: 200 }, (_, i) =>
-          createMockHistoryItem(batch * 200 + i)
+          createMockJobItem(batch * 200 + i)
         )
-        vi.mocked(api.getHistory).mockResolvedValueOnce({
-          History: items
-        })
+        vi.mocked(api.getHistory).mockResolvedValueOnce(items)
         await store.loadMoreHistory()
       }
 
@@ -347,21 +296,17 @@ describe('assetsStore - Refactored (Option A)', () => {
     it('should maintain date sorting after pagination', async () => {
       // First batch
       const firstBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: firstBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(firstBatch)
 
       await store.updateHistory()
 
       // Second batch
       const secondBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(200 + i)
+        createMockJobItem(200 + i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: secondBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(secondBatch)
 
       await store.loadMoreHistory()
 
@@ -378,11 +323,9 @@ describe('assetsStore - Refactored (Option A)', () => {
     it('should preserve existing data when loadMore fails', async () => {
       // First successful load - full batch
       const firstBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: firstBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(firstBatch)
 
       await store.updateHistory()
       expect(store.historyAssets).toHaveLength(200)
@@ -402,11 +345,9 @@ describe('assetsStore - Refactored (Option A)', () => {
     it('should clear error state on successful retry', async () => {
       // First load succeeds
       const firstBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: firstBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(firstBatch)
 
       await store.updateHistory()
 
@@ -419,11 +360,9 @@ describe('assetsStore - Refactored (Option A)', () => {
 
       // Third load succeeds
       const thirdBatch = Array.from({ length: 200 }, (_, i) =>
-        createMockHistoryItem(200 + i)
+        createMockJobItem(200 + i)
       )
-      vi.mocked(api.getHistory).mockResolvedValueOnce({
-        History: thirdBatch
-      })
+      vi.mocked(api.getHistory).mockResolvedValueOnce(thirdBatch)
 
       await store.loadMoreHistory()
 
@@ -450,11 +389,9 @@ describe('assetsStore - Refactored (Option A)', () => {
 
       for (let batch = 0; batch < batches; batch++) {
         const items = Array.from({ length: 200 }, (_, i) =>
-          createMockHistoryItem(batch * 200 + i)
+          createMockJobItem(batch * 200 + i)
         )
-        vi.mocked(api.getHistory).mockResolvedValueOnce({
-          History: items
-        })
+        vi.mocked(api.getHistory).mockResolvedValueOnce(items)
 
         if (batch === 0) {
           await store.updateHistory()
@@ -476,11 +413,9 @@ describe('assetsStore - Refactored (Option A)', () => {
       // Load items beyond limit
       for (let batch = 0; batch < 6; batch++) {
         const items = Array.from({ length: 200 }, (_, i) =>
-          createMockHistoryItem(batch * 200 + i)
+          createMockJobItem(batch * 200 + i)
         )
-        vi.mocked(api.getHistory).mockResolvedValueOnce({
-          History: items
-        })
+        vi.mocked(api.getHistory).mockResolvedValueOnce(items)
 
         if (batch === 0) {
           await store.updateHistory()
@@ -503,11 +438,9 @@ describe('assetsStore - Refactored (Option A)', () => {
   describe('jobDetailView Support', () => {
     it('should include outputCount and allOutputs in user_metadata', async () => {
       const mockHistory = Array.from({ length: 5 }, (_, i) =>
-        createMockHistoryItem(i)
+        createMockJobItem(i)
       )
-      vi.mocked(api.getHistory).mockResolvedValue({
-        History: mockHistory
-      })
+      vi.mocked(api.getHistory).mockResolvedValue(mockHistory)
 
       await store.updateHistory()
 
diff --git a/src/stores/assetsStore.ts b/src/stores/assetsStore.ts
index 56efe3daa6..a387aea7d3 100644
--- a/src/stores/assetsStore.ts
+++ b/src/stores/assetsStore.ts
@@ -9,7 +9,7 @@ import {
 import type { AssetItem } from '@/platform/assets/schemas/assetSchema'
 import { assetService } from '@/platform/assets/services/assetService'
 import { isCloud } from '@/platform/distribution/types'
-import type { TaskItem } from '@/schemas/apiSchema'
+import type { JobListItem } from '@/platform/remote/comfyui/jobs/jobTypes'
 import { api } from '@/scripts/api'
 
 import { TaskItemImpl } from './queueStore'
@@ -48,27 +48,18 @@ async function fetchInputFilesFromCloud(): Promise<AssetItem[]> {
 }
 
 /**
- * Convert history task items to asset items
+ * Convert history job items to asset items
  */
-function mapHistoryToAssets(historyItems: TaskItem[]): AssetItem[] {
+function mapHistoryToAssets(historyItems: JobListItem[]): AssetItem[] {
   const assetItems: AssetItem[] = []
 
-  for (const item of historyItems) {
-    // Type guard for HistoryTaskItem which has status and outputs
-    if (item.taskType !== 'History') {
+  for (const job of historyItems) {
+    // Only process completed jobs with preview output
+    if (job.status !== 'completed' || !job.preview_output) {
       continue
     }
 
-    if (!item.outputs || !item.status || item.status?.status_str === 'error') {
-      continue
-    }
-
-    const task = new TaskItemImpl(
-      'History',
-      item.prompt,
-      item.status,
-      item.outputs
-    )
+    const task = new TaskItemImpl(job)
 
     if (!task.previewOutput) {
       continue
@@ -76,11 +67,10 @@ function mapHistoryToAssets(historyItems: TaskItem[]): AssetItem[] {
 
     const assetItem = mapTaskOutputToAssetItem(task, task.previewOutput)
 
-    const supportedOutputs = task.flatOutputs.filter((o) => o.supportsPreview)
     assetItem.user_metadata = {
       ...assetItem.user_metadata,
-      outputCount: supportedOutputs.length,
-      allOutputs: supportedOutputs
+      outputCount: job.outputs_count,
+      allOutputs: task.previewableOutputs
     }
 
     assetItems.push(assetItem)
@@ -143,8 +133,8 @@ export const useAssetsStore = defineStore('assets', () => {
       offset: historyOffset.value
     })
 
-    // Convert TaskItems to AssetItems
-    const newAssets = mapHistoryToAssets(history.History)
+    // Convert JobListItems to AssetItems
+    const newAssets = mapHistoryToAssets(history)
 
     if (loadMore) {
       // Filter out duplicates and insert in sorted order
@@ -176,7 +166,7 @@ export const useAssetsStore = defineStore('assets', () => {
 
     // Update pagination state
     historyOffset.value += BATCH_SIZE
-    hasMoreHistory.value = history.History.length === BATCH_SIZE
+    hasMoreHistory.value = history.length === BATCH_SIZE
 
     if (allHistoryItems.value.length > MAX_HISTORY_ITEMS) {
       const removed = allHistoryItems.value.slice(MAX_HISTORY_ITEMS)
diff --git a/src/stores/executionStore.ts b/src/stores/executionStore.ts
index b9f89c29a1..429adb807c 100644
--- a/src/stores/executionStore.ts
+++ b/src/stores/executionStore.ts
@@ -396,10 +396,8 @@ export const useExecutionStore = defineStore('execution', () => {
         error: e.detail.exception_message
       })
     }
-    const pid = e.detail?.prompt_id
-    // Clear initialization for errored prompt if present
-    if (e.detail?.prompt_id) clearInitializationByPromptId(e.detail.prompt_id)
-    resetExecutionState(pid)
+    clearInitializationByPromptId(e.detail.prompt_id)
+    resetExecutionState(e.detail.prompt_id)
   }
 
   /**
diff --git a/src/stores/queueStore.loadWorkflow.test.ts b/src/stores/queueStore.loadWorkflow.test.ts
index 3ff57f5936..8b9ae30a55 100644
--- a/src/stores/queueStore.loadWorkflow.test.ts
+++ b/src/stores/queueStore.loadWorkflow.test.ts
@@ -1,14 +1,14 @@
 import { createPinia, setActivePinia } from 'pinia'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 
-import type { ComfyApp } from '@/scripts/app'
+import type {
+  JobDetail,
+  JobListItem
+} from '@/platform/remote/comfyui/jobs/jobTypes'
 import type { ComfyWorkflowJSON } from '@/platform/workflow/validation/schemas/workflowSchema'
+import type { ComfyApp } from '@/scripts/app'
 import { TaskItemImpl } from '@/stores/queueStore'
-import * as getWorkflowModule from '@/platform/workflow/cloud'
-
-vi.mock('@/platform/distribution/types', () => ({
-  isCloud: true
-}))
+import * as jobOutputCache from '@/services/jobOutputCache'
 
 vi.mock('@/services/extensionService', () => ({
   useExtensionService: vi.fn(() => ({
@@ -17,8 +17,6 @@ vi.mock('@/services/extensionService', () => ({
 }))
 
 const mockWorkflow: ComfyWorkflowJSON = {
-  id: 'test-workflow-id',
-  revision: 0,
   last_node_id: 5,
   last_link_id: 3,
   nodes: [],
@@ -29,53 +27,46 @@ const mockWorkflow: ComfyWorkflowJSON = {
   version: 0.4
 }
 
-const createHistoryTaskWithWorkflow = (): TaskItemImpl => {
-  return new TaskItemImpl(
-    'History',
-    [
-      0, // queueIndex
-      'test-prompt-id', // promptId
-      {}, // promptInputs
-      {
-        client_id: 'test-client',
-        extra_pnginfo: {
-          workflow: mockWorkflow
-        }
-      },
-      [] // outputsToExecute
-    ],
-    {
-      status_str: 'success',
-      completed: true,
-      messages: []
-    },
-    {} // outputs
-  )
+// Mock job detail response (matches actual /jobs/{id} API response structure)
+// workflow is nested at: workflow.extra_data.extra_pnginfo.workflow
+const mockJobDetail = {
+  id: 'test-prompt-id',
+  status: 'completed' as const,
+  create_time: Date.now(),
+  update_time: Date.now(),
+  workflow: {
+    extra_data: {
+      extra_pnginfo: {
+        workflow: mockWorkflow
+      }
+    }
+  },
+  outputs: {
+    '1': { images: [{ filename: 'test.png', subfolder: '', type: 'output' }] }
+  }
 }
 
-const createHistoryTaskWithoutWorkflow = (): TaskItemImpl => {
-  return new TaskItemImpl(
-    'History',
-    [
-      0,
-      'test-prompt-id',
-      {},
-      {
-        client_id: 'test-client'
-        // No extra_pnginfo.workflow
-      },
-      []
-    ],
-    {
-      status_str: 'success',
-      completed: true,
-      messages: []
-    },
-    {}
-  )
+function createHistoryJob(id: string): JobListItem {
+  const now = Date.now()
+  return {
+    id,
+    status: 'completed',
+    create_time: now,
+    priority: now
+  }
 }
 
-describe('TaskItemImpl.loadWorkflow - cloud history workflow fetching', () => {
+function createRunningJob(id: string): JobListItem {
+  const now = Date.now()
+  return {
+    id,
+    status: 'in_progress',
+    create_time: now,
+    priority: now
+  }
+}
+
+describe('TaskItemImpl.loadWorkflow - workflow fetching', () => {
   let mockApp: ComfyApp
   let mockFetchApi: ReturnType<typeof vi.fn>
 
@@ -91,85 +82,57 @@ describe('TaskItemImpl.loadWorkflow - cloud history workflow fetching', () => {
         fetchApi: mockFetchApi
       }
     } as unknown as ComfyApp
-
-    vi.spyOn(getWorkflowModule, 'getWorkflowFromHistory')
   })
 
-  it('should load workflow directly when workflow is in extra_pnginfo', async () => {
-    const task = createHistoryTaskWithWorkflow()
+  it('should fetch workflow from API for history tasks', async () => {
+    const job = createHistoryJob('test-prompt-id')
+    const task = new TaskItemImpl(job)
 
-    await task.loadWorkflow(mockApp)
-
-    expect(mockApp.loadGraphData).toHaveBeenCalledWith(mockWorkflow)
-    expect(mockFetchApi).not.toHaveBeenCalled()
-  })
-
-  it('should fetch workflow from cloud when workflow is missing from history task', async () => {
-    const task = createHistoryTaskWithoutWorkflow()
-
-    // Mock getWorkflowFromHistory to return workflow
-    vi.spyOn(getWorkflowModule, 'getWorkflowFromHistory').mockResolvedValue(
-      mockWorkflow
+    vi.spyOn(jobOutputCache, 'getJobDetail').mockResolvedValue(
+      mockJobDetail as JobDetail
     )
 
     await task.loadWorkflow(mockApp)
 
-    expect(getWorkflowModule.getWorkflowFromHistory).toHaveBeenCalledWith(
-      expect.any(Function),
-      'test-prompt-id'
-    )
+    expect(jobOutputCache.getJobDetail).toHaveBeenCalledWith('test-prompt-id')
     expect(mockApp.loadGraphData).toHaveBeenCalledWith(mockWorkflow)
   })
 
   it('should not load workflow when fetch returns undefined', async () => {
-    const task = createHistoryTaskWithoutWorkflow()
+    const job = createHistoryJob('test-prompt-id')
+    const task = new TaskItemImpl(job)
 
-    vi.spyOn(getWorkflowModule, 'getWorkflowFromHistory').mockResolvedValue(
-      undefined
-    )
+    vi.spyOn(jobOutputCache, 'getJobDetail').mockResolvedValue(undefined)
 
     await task.loadWorkflow(mockApp)
 
-    expect(getWorkflowModule.getWorkflowFromHistory).toHaveBeenCalled()
+    expect(jobOutputCache.getJobDetail).toHaveBeenCalled()
     expect(mockApp.loadGraphData).not.toHaveBeenCalled()
   })
 
   it('should only fetch for history tasks, not running tasks', async () => {
-    const runningTask = new TaskItemImpl(
-      'Running',
-      [
-        0,
-        'test-prompt-id',
-        {},
-        {
-          client_id: 'test-client'
-        },
-        []
-      ],
-      undefined,
-      {}
-    )
+    const job = createRunningJob('test-prompt-id')
+    const runningTask = new TaskItemImpl(job)
 
-    vi.spyOn(getWorkflowModule, 'getWorkflowFromHistory').mockResolvedValue(
-      mockWorkflow
+    vi.spyOn(jobOutputCache, 'getJobDetail').mockResolvedValue(
+      mockJobDetail as JobDetail
     )
 
     await runningTask.loadWorkflow(mockApp)
 
-    expect(getWorkflowModule.getWorkflowFromHistory).not.toHaveBeenCalled()
+    expect(jobOutputCache.getJobDetail).not.toHaveBeenCalled()
     expect(mockApp.loadGraphData).not.toHaveBeenCalled()
   })
 
   it('should handle fetch errors gracefully by returning undefined', async () => {
-    const task = createHistoryTaskWithoutWorkflow()
+    const job = createHistoryJob('test-prompt-id')
+    const task = new TaskItemImpl(job)
 
-    vi.spyOn(getWorkflowModule, 'getWorkflowFromHistory').mockResolvedValue(
-      undefined
-    )
+    vi.spyOn(jobOutputCache, 'getJobDetail').mockResolvedValue(undefined)
 
     await task.loadWorkflow(mockApp)
 
-    expect(getWorkflowModule.getWorkflowFromHistory).toHaveBeenCalled()
+    expect(jobOutputCache.getJobDetail).toHaveBeenCalled()
     expect(mockApp.loadGraphData).not.toHaveBeenCalled()
   })
 })
diff --git a/src/stores/queueStore.test.ts b/src/stores/queueStore.test.ts
index dfa90049b5..063658b2f9 100644
--- a/src/stores/queueStore.test.ts
+++ b/src/stores/queueStore.test.ts
@@ -1,34 +1,39 @@
 import { createPinia, setActivePinia } from 'pinia'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 
-import type {
-  HistoryTaskItem,
-  PendingTaskItem,
-  RunningTaskItem,
-  TaskOutput,
-  TaskPrompt,
-  TaskStatus
-} from '@/schemas/apiSchema'
+import type { JobListItem } from '@/platform/remote/comfyui/jobs/jobTypes'
+import type { TaskOutput } from '@/schemas/apiSchema'
 import { api } from '@/scripts/api'
 import { TaskItemImpl, useQueueStore } from '@/stores/queueStore'
 
-// Fixture factories
-const createTaskPrompt = (
-  queueIndex: number,
-  promptId: string,
-  inputs: Record<string, any> = {},
-  extraData: Record<string, any> = {},
-  outputsToExecute: any[] = []
-): TaskPrompt => [queueIndex, promptId, inputs, extraData, outputsToExecute]
+// Fixture factory for JobListItem
+function createJob(
+  id: string,
+  status: JobListItem['status'],
+  createTime: number = Date.now(),
+  priority?: number
+): JobListItem {
+  return {
+    id,
+    status,
+    create_time: createTime,
+    update_time: createTime,
+    last_state_update: createTime,
+    priority: priority ?? createTime
+  }
+}
 
-const createTaskStatus = (
-  statusStr: 'success' | 'error' = 'success',
-  messages: any[] = []
-): TaskStatus => ({
-  status_str: statusStr,
-  completed: true,
-  messages
-})
+function createRunningJob(createTime: number, id: string): JobListItem {
+  return createJob(id, 'in_progress', createTime)
+}
+
+function createPendingJob(createTime: number, id: string): JobListItem {
+  return createJob(id, 'pending', createTime)
+}
+
+function createHistoryJob(createTime: number, id: string): JobListItem {
+  return createJob(id, 'completed', createTime)
+}
 
 const createTaskOutput = (
   nodeId: string = 'node-1',
@@ -39,35 +44,6 @@ const createTaskOutput = (
   }
 })
 
-const createRunningTask = (
-  queueIndex: number,
-  promptId: string
-): RunningTaskItem => ({
-  taskType: 'Running',
-  prompt: createTaskPrompt(queueIndex, promptId),
-  remove: { name: 'Cancel', cb: () => {} }
-})
-
-const createPendingTask = (
-  queueIndex: number,
-  promptId: string
-): PendingTaskItem => ({
-  taskType: 'Pending',
-  prompt: createTaskPrompt(queueIndex, promptId)
-})
-
-const createHistoryTask = (
-  queueIndex: number,
-  promptId: string,
-  outputs: TaskOutput = createTaskOutput(),
-  status: TaskStatus = createTaskStatus()
-): HistoryTaskItem => ({
-  taskType: 'History',
-  prompt: createTaskPrompt(queueIndex, promptId),
-  status,
-  outputs
-})
-
 // Mock API
 vi.mock('@/scripts/api', () => ({
   api: {
@@ -83,17 +59,13 @@ vi.mock('@/scripts/api', () => ({
 
 describe('TaskItemImpl', () => {
   it('should remove animated property from outputs during construction', () => {
-    const taskItem = new TaskItemImpl(
-      'History',
-      [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-      { status_str: 'success', messages: [], completed: true },
-      {
-        'node-1': {
-          images: [{ filename: 'test.png', type: 'output', subfolder: '' }],
-          animated: [false]
-        }
+    const job = createHistoryJob(0, 'prompt-id')
+    const taskItem = new TaskItemImpl(job, {
+      'node-1': {
+        images: [{ filename: 'test.png', type: 'output', subfolder: '' }],
+        animated: [false]
       }
-    )
+    })
 
     // Check that animated property was removed
     expect('animated' in taskItem.outputs['node-1']).toBe(false)
@@ -103,90 +75,72 @@ describe('TaskItemImpl', () => {
   })
 
   it('should handle outputs without animated property', () => {
-    const taskItem = new TaskItemImpl(
-      'History',
-      [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-      { status_str: 'success', messages: [], completed: true },
-      {
-        'node-1': {
-          images: [{ filename: 'test.png', type: 'output', subfolder: '' }]
-        }
+    const job = createHistoryJob(0, 'prompt-id')
+    const taskItem = new TaskItemImpl(job, {
+      'node-1': {
+        images: [{ filename: 'test.png', type: 'output', subfolder: '' }]
       }
-    )
+    })
 
     expect(taskItem.outputs['node-1'].images).toBeDefined()
     expect(taskItem.outputs['node-1'].images?.[0]?.filename).toBe('test.png')
   })
 
   it('should recognize webm video from core', () => {
-    const taskItem = new TaskItemImpl(
-      'History',
-      [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-      { status_str: 'success', messages: [], completed: true },
-      {
-        'node-1': {
-          video: [{ filename: 'test.webm', type: 'output', subfolder: '' }]
-        }
+    const job = createHistoryJob(0, 'prompt-id')
+    const taskItem = new TaskItemImpl(job, {
+      'node-1': {
+        video: [{ filename: 'test.webm', type: 'output', subfolder: '' }]
       }
-    )
+    })
 
     const output = taskItem.flatOutputs[0]
 
     expect(output.htmlVideoType).toBe('video/webm')
     expect(output.isVideo).toBe(true)
-    expect(output.isWebm).toBe(true)
     expect(output.isVhsFormat).toBe(false)
     expect(output.isImage).toBe(false)
   })
 
   // https://github.com/Kosinkadink/ComfyUI-VideoHelperSuite/blob/0a75c7958fe320efcb052f1d9f8451fd20c730a8/videohelpersuite/nodes.py#L578-L590
   it('should recognize webm video from VHS', () => {
-    const taskItem = new TaskItemImpl(
-      'History',
-      [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-      { status_str: 'success', messages: [], completed: true },
-      {
-        'node-1': {
-          gifs: [
-            {
-              filename: 'test.webm',
-              type: 'output',
-              subfolder: '',
-              format: 'video/webm',
-              frame_rate: 30
-            }
-          ]
-        }
+    const job = createHistoryJob(0, 'prompt-id')
+    const taskItem = new TaskItemImpl(job, {
+      'node-1': {
+        gifs: [
+          {
+            filename: 'test.webm',
+            type: 'output',
+            subfolder: '',
+            format: 'video/webm',
+            frame_rate: 30
+          }
+        ]
       }
-    )
+    })
 
     const output = taskItem.flatOutputs[0]
 
     expect(output.htmlVideoType).toBe('video/webm')
     expect(output.isVideo).toBe(true)
-    expect(output.isWebm).toBe(true)
     expect(output.isVhsFormat).toBe(true)
     expect(output.isImage).toBe(false)
   })
 
   it('should recognize mp4 video from core', () => {
-    const taskItem = new TaskItemImpl(
-      'History',
-      [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-      { status_str: 'success', messages: [], completed: true },
-      {
-        'node-1': {
-          images: [
-            {
-              filename: 'test.mp4',
-              type: 'output',
-              subfolder: ''
-            }
-          ],
-          animated: [true]
-        }
+    const job = createHistoryJob(0, 'prompt-id')
+    const taskItem = new TaskItemImpl(job, {
+      'node-1': {
+        images: [
+          {
+            filename: 'test.mp4',
+            type: 'output',
+            subfolder: ''
+          }
+        ],
+        animated: [true]
       }
-    )
+    })
 
     const output = taskItem.flatOutputs[0]
 
@@ -205,22 +159,18 @@ describe('TaskItemImpl', () => {
 
     audioFormats.forEach(({ extension, mimeType }) => {
       it(`should recognize ${extension} audio`, () => {
-        const taskItem = new TaskItemImpl(
-          'History',
-          [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-          { status_str: 'success', messages: [], completed: true },
-          {
-            'node-1': {
-              audio: [
-                {
-                  filename: `test.${extension}`,
-                  type: 'output',
-                  subfolder: ''
-                }
-              ]
-            }
+        const job = createHistoryJob(0, 'prompt-id')
+        const taskItem = new TaskItemImpl(job, {
+          'node-1': {
+            audio: [
+              {
+                filename: `test.${extension}`,
+                type: 'output',
+                subfolder: ''
+              }
+            ]
           }
-        )
+        })
 
         const output = taskItem.flatOutputs[0]
 
@@ -233,20 +183,39 @@ describe('TaskItemImpl', () => {
     })
   })
 
-  describe('executionError getter', () => {
-    it('returns undefined when no execution_error message', () => {
-      const taskItem = new TaskItemImpl(
-        'History',
-        [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-        { status_str: 'success', messages: [], completed: true }
-      )
+  describe('error extraction getters', () => {
+    it('errorMessage returns undefined when no execution_error', () => {
+      const job = createHistoryJob(0, 'prompt-id')
+      const taskItem = new TaskItemImpl(job)
+      expect(taskItem.errorMessage).toBeUndefined()
+    })
+
+    it('errorMessage returns the exception_message from execution_error', () => {
+      const job: JobListItem = {
+        ...createHistoryJob(0, 'prompt-id'),
+        status: 'failed',
+        execution_error: {
+          node_id: 'node-1',
+          node_type: 'KSampler',
+          exception_message: 'GPU out of memory',
+          exception_type: 'RuntimeError',
+          traceback: ['line 1', 'line 2'],
+          current_inputs: {},
+          current_outputs: {}
+        }
+      }
+      const taskItem = new TaskItemImpl(job)
+      expect(taskItem.errorMessage).toBe('GPU out of memory')
+    })
+
+    it('executionError returns undefined when no execution_error', () => {
+      const job = createHistoryJob(0, 'prompt-id')
+      const taskItem = new TaskItemImpl(job)
       expect(taskItem.executionError).toBeUndefined()
     })
 
-    it('returns the full error object from execution_error', () => {
+    it('executionError returns the full error object from execution_error', () => {
       const errorDetail = {
-        prompt_id: 'prompt-id',
-        timestamp: 2,
         node_id: 'node-1',
         node_type: 'KSampler',
         executed: ['node-0'],
@@ -256,15 +225,12 @@ describe('TaskItemImpl', () => {
         current_inputs: { input1: 'value' },
         current_outputs: {}
       }
-      const taskItem = new TaskItemImpl(
-        'History',
-        [0, 'prompt-id', {}, { client_id: 'client-id' }, []],
-        {
-          status_str: 'error',
-          completed: false,
-          messages: [['execution_error', errorDetail]]
-        }
-      )
+      const job: JobListItem = {
+        ...createHistoryJob(0, 'prompt-id'),
+        status: 'failed',
+        execution_error: errorDetail
+      }
+      const taskItem = new TaskItemImpl(job)
       expect(taskItem.executionError).toEqual(errorDetail)
     })
   })
@@ -303,15 +269,16 @@ describe('useQueueStore', () => {
 
   describe('update() - basic functionality', () => {
     it('should load running and pending tasks from API', async () => {
-      const runningTask = createRunningTask(1, 'run-1')
-      const pendingTask1 = createPendingTask(2, 'pend-1')
-      const pendingTask2 = createPendingTask(3, 'pend-2')
+      const runningJob = createRunningJob(1, 'run-1')
+      const pendingJob1 = createPendingJob(2, 'pend-1')
+      const pendingJob2 = createPendingJob(3, 'pend-2')
 
+      // API returns pre-sorted data (newest first)
       mockGetQueue.mockResolvedValue({
-        Running: [runningTask],
-        Pending: [pendingTask1, pendingTask2]
+        Running: [runningJob],
+        Pending: [pendingJob2, pendingJob1] // Pre-sorted by create_time desc
       })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.update()
 
@@ -323,13 +290,11 @@ describe('useQueueStore', () => {
     })
 
     it('should load history tasks from API', async () => {
-      const historyTask1 = createHistoryTask(5, 'hist-1')
-      const historyTask2 = createHistoryTask(4, 'hist-2')
+      const historyJob1 = createHistoryJob(5, 'hist-1')
+      const historyJob2 = createHistoryJob(4, 'hist-2')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({
-        History: [historyTask1, historyTask2]
-      })
+      mockGetHistory.mockResolvedValue([historyJob1, historyJob2])
 
       await store.update()
 
@@ -340,7 +305,7 @@ describe('useQueueStore', () => {
 
     it('should set loading state correctly', async () => {
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       expect(store.isLoading).toBe(false)
 
@@ -353,7 +318,7 @@ describe('useQueueStore', () => {
 
     it('should clear loading state even if API fails', async () => {
       mockGetQueue.mockRejectedValue(new Error('API error'))
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await expect(store.update()).rejects.toThrow('API error')
       expect(store.isLoading).toBe(false)
@@ -362,14 +327,12 @@ describe('useQueueStore', () => {
 
   describe('update() - sorting', () => {
     it('should sort tasks by queueIndex descending', async () => {
-      const task1 = createHistoryTask(1, 'hist-1')
-      const task2 = createHistoryTask(5, 'hist-2')
-      const task3 = createHistoryTask(3, 'hist-3')
+      const job1 = createHistoryJob(1, 'hist-1')
+      const job2 = createHistoryJob(5, 'hist-2')
+      const job3 = createHistoryJob(3, 'hist-3')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({
-        History: [task1, task2, task3]
-      })
+      mockGetHistory.mockResolvedValue([job1, job2, job3])
 
       await store.update()
 
@@ -378,16 +341,17 @@ describe('useQueueStore', () => {
       expect(store.historyTasks[2].queueIndex).toBe(1)
     })
 
-    it('should sort pending tasks by queueIndex descending', async () => {
-      const pend1 = createPendingTask(10, 'pend-1')
-      const pend2 = createPendingTask(15, 'pend-2')
-      const pend3 = createPendingTask(12, 'pend-3')
+    it('should preserve API sort order for pending tasks', async () => {
+      const pend1 = createPendingJob(10, 'pend-1')
+      const pend2 = createPendingJob(15, 'pend-2')
+      const pend3 = createPendingJob(12, 'pend-3')
 
+      // API returns pre-sorted data (newest first)
       mockGetQueue.mockResolvedValue({
         Running: [],
-        Pending: [pend1, pend2, pend3]
+        Pending: [pend2, pend3, pend1] // Pre-sorted by create_time desc
       })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.update()
 
@@ -399,19 +363,17 @@ describe('useQueueStore', () => {
 
   describe('update() - queue index collision (THE BUG FIX)', () => {
     it('should NOT confuse different prompts with same queueIndex', async () => {
-      const hist1 = createHistoryTask(50, 'prompt-uuid-aaa')
+      const hist1 = createHistoryJob(50, 'prompt-uuid-aaa')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [hist1] })
+      mockGetHistory.mockResolvedValue([hist1])
 
       await store.update()
       expect(store.historyTasks).toHaveLength(1)
       expect(store.historyTasks[0].promptId).toBe('prompt-uuid-aaa')
 
-      const hist2 = createHistoryTask(51, 'prompt-uuid-bbb')
-      mockGetHistory.mockResolvedValue({
-        History: [hist2]
-      })
+      const hist2 = createHistoryJob(51, 'prompt-uuid-bbb')
+      mockGetHistory.mockResolvedValue([hist2])
 
       await store.update()
 
@@ -421,19 +383,17 @@ describe('useQueueStore', () => {
     })
 
     it('should correctly reconcile when queueIndex is reused', async () => {
-      const hist1 = createHistoryTask(100, 'first-prompt-at-100')
-      const hist2 = createHistoryTask(99, 'prompt-at-99')
+      const hist1 = createHistoryJob(100, 'first-prompt-at-100')
+      const hist2 = createHistoryJob(99, 'prompt-at-99')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [hist1, hist2] })
+      mockGetHistory.mockResolvedValue([hist1, hist2])
 
       await store.update()
       expect(store.historyTasks).toHaveLength(2)
 
-      const hist3 = createHistoryTask(101, 'second-prompt-at-101')
-      mockGetHistory.mockResolvedValue({
-        History: [hist3, hist2]
-      })
+      const hist3 = createHistoryJob(101, 'second-prompt-at-101')
+      mockGetHistory.mockResolvedValue([hist3, hist2])
 
       await store.update()
 
@@ -445,23 +405,19 @@ describe('useQueueStore', () => {
     })
 
     it('should handle multiple queueIndex collisions simultaneously', async () => {
-      const hist1 = createHistoryTask(10, 'old-at-10')
-      const hist2 = createHistoryTask(20, 'old-at-20')
-      const hist3 = createHistoryTask(30, 'keep-at-30')
+      const hist1 = createHistoryJob(10, 'old-at-10')
+      const hist2 = createHistoryJob(20, 'old-at-20')
+      const hist3 = createHistoryJob(30, 'keep-at-30')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({
-        History: [hist3, hist2, hist1]
-      })
+      mockGetHistory.mockResolvedValue([hist3, hist2, hist1])
 
       await store.update()
       expect(store.historyTasks).toHaveLength(3)
 
-      const newHist1 = createHistoryTask(31, 'new-at-31')
-      const newHist2 = createHistoryTask(32, 'new-at-32')
-      mockGetHistory.mockResolvedValue({
-        History: [newHist2, newHist1, hist3]
-      })
+      const newHist1 = createHistoryJob(31, 'new-at-31')
+      const newHist2 = createHistoryJob(32, 'new-at-32')
+      mockGetHistory.mockResolvedValue([newHist2, newHist1, hist3])
 
       await store.update()
 
@@ -473,19 +429,17 @@ describe('useQueueStore', () => {
 
   describe('update() - history reconciliation', () => {
     it('should keep existing items still on server (by promptId)', async () => {
-      const hist1 = createHistoryTask(10, 'existing-1')
-      const hist2 = createHistoryTask(9, 'existing-2')
+      const hist1 = createHistoryJob(10, 'existing-1')
+      const hist2 = createHistoryJob(9, 'existing-2')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [hist1, hist2] })
+      mockGetHistory.mockResolvedValue([hist1, hist2])
 
       await store.update()
       expect(store.historyTasks).toHaveLength(2)
 
-      const hist3 = createHistoryTask(11, 'new-1')
-      mockGetHistory.mockResolvedValue({
-        History: [hist3, hist1, hist2]
-      })
+      const hist3 = createHistoryJob(11, 'new-1')
+      mockGetHistory.mockResolvedValue([hist3, hist1, hist2])
 
       await store.update()
 
@@ -496,16 +450,16 @@ describe('useQueueStore', () => {
     })
 
     it('should remove items no longer on server', async () => {
-      const hist1 = createHistoryTask(10, 'remove-me')
-      const hist2 = createHistoryTask(9, 'keep-me')
+      const hist1 = createHistoryJob(10, 'remove-me')
+      const hist2 = createHistoryJob(9, 'keep-me')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [hist1, hist2] })
+      mockGetHistory.mockResolvedValue([hist1, hist2])
 
       await store.update()
       expect(store.historyTasks).toHaveLength(2)
 
-      mockGetHistory.mockResolvedValue({ History: [hist2] })
+      mockGetHistory.mockResolvedValue([hist2])
 
       await store.update()
 
@@ -514,18 +468,16 @@ describe('useQueueStore', () => {
     })
 
     it('should add new items from server', async () => {
-      const hist1 = createHistoryTask(5, 'old-1')
+      const hist1 = createHistoryJob(5, 'old-1')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [hist1] })
+      mockGetHistory.mockResolvedValue([hist1])
 
       await store.update()
 
-      const hist2 = createHistoryTask(6, 'new-1')
-      const hist3 = createHistoryTask(7, 'new-2')
-      mockGetHistory.mockResolvedValue({
-        History: [hist3, hist2, hist1]
-      })
+      const hist2 = createHistoryJob(6, 'new-1')
+      const hist3 = createHistoryJob(7, 'new-2')
+      mockGetHistory.mockResolvedValue([hist3, hist2, hist1])
 
       await store.update()
 
@@ -533,18 +485,69 @@ describe('useQueueStore', () => {
       expect(store.historyTasks.map((t) => t.promptId)).toContain('new-1')
       expect(store.historyTasks.map((t) => t.promptId)).toContain('new-2')
     })
+
+    it('should recreate TaskItemImpl when outputs_count changes', async () => {
+      // Initial load without outputs_count
+      const jobWithoutOutputsCount = createHistoryJob(10, 'job-1')
+      delete (jobWithoutOutputsCount as any).outputs_count
+
+      mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
+      mockGetHistory.mockResolvedValue([jobWithoutOutputsCount])
+
+      await store.update()
+      expect(store.historyTasks).toHaveLength(1)
+      const initialTask = store.historyTasks[0]
+      expect(initialTask.outputsCount).toBeUndefined()
+
+      // Second load with outputs_count now populated
+      const jobWithOutputsCount = {
+        ...createHistoryJob(10, 'job-1'),
+        outputs_count: 2
+      }
+      mockGetHistory.mockResolvedValue([jobWithOutputsCount])
+
+      await store.update()
+
+      // Should have recreated the TaskItemImpl with new outputs_count
+      expect(store.historyTasks).toHaveLength(1)
+      const updatedTask = store.historyTasks[0]
+      expect(updatedTask.outputsCount).toBe(2)
+      // Should be a different instance
+      expect(updatedTask).not.toBe(initialTask)
+    })
+
+    it('should reuse TaskItemImpl when outputs_count unchanged', async () => {
+      const job = {
+        ...createHistoryJob(10, 'job-1'),
+        outputs_count: 2
+      }
+
+      mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
+      mockGetHistory.mockResolvedValue([job])
+
+      await store.update()
+      const initialTask = store.historyTasks[0]
+
+      // Same job with same outputs_count
+      mockGetHistory.mockResolvedValue([{ ...job }])
+
+      await store.update()
+
+      // Should reuse the same instance
+      expect(store.historyTasks[0]).toBe(initialTask)
+    })
   })
 
   describe('update() - maxHistoryItems limit', () => {
     it('should enforce maxHistoryItems limit', async () => {
       store.maxHistoryItems = 3
 
-      const tasks = Array.from({ length: 5 }, (_, i) =>
-        createHistoryTask(10 - i, `hist-${i}`)
+      const jobs = Array.from({ length: 5 }, (_, i) =>
+        createHistoryJob(10 - i, `hist-${i}`)
       )
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: tasks })
+      mockGetHistory.mockResolvedValue(jobs)
 
       await store.update()
 
@@ -558,21 +561,19 @@ describe('useQueueStore', () => {
       store.maxHistoryItems = 5
 
       const initial = Array.from({ length: 3 }, (_, i) =>
-        createHistoryTask(10 + i, `existing-${i}`)
+        createHistoryJob(10 + i, `existing-${i}`)
       )
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: initial })
+      mockGetHistory.mockResolvedValue(initial)
 
       await store.update()
       expect(store.historyTasks).toHaveLength(3)
 
-      const newTasks = Array.from({ length: 4 }, (_, i) =>
-        createHistoryTask(20 + i, `new-${i}`)
+      const newJobs = Array.from({ length: 4 }, (_, i) =>
+        createHistoryJob(20 + i, `new-${i}`)
       )
-      mockGetHistory.mockResolvedValue({
-        History: [...newTasks, ...initial]
-      })
+      mockGetHistory.mockResolvedValue([...newJobs, ...initial])
 
       await store.update()
 
@@ -583,10 +584,10 @@ describe('useQueueStore', () => {
     it('should handle maxHistoryItems = 0', async () => {
       store.maxHistoryItems = 0
 
-      const tasks = [createHistoryTask(10, 'hist-1')]
+      const jobs = [createHistoryJob(10, 'hist-1')]
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: tasks })
+      mockGetHistory.mockResolvedValue(jobs)
 
       await store.update()
 
@@ -596,13 +597,13 @@ describe('useQueueStore', () => {
     it('should handle maxHistoryItems = 1', async () => {
       store.maxHistoryItems = 1
 
-      const tasks = [
-        createHistoryTask(10, 'hist-1'),
-        createHistoryTask(9, 'hist-2')
+      const jobs = [
+        createHistoryJob(10, 'hist-1'),
+        createHistoryJob(9, 'hist-2')
       ]
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: tasks })
+      mockGetHistory.mockResolvedValue(jobs)
 
       await store.update()
 
@@ -613,18 +614,18 @@ describe('useQueueStore', () => {
     it('should dynamically adjust when maxHistoryItems changes', async () => {
       store.maxHistoryItems = 10
 
-      const tasks = Array.from({ length: 15 }, (_, i) =>
-        createHistoryTask(20 - i, `hist-${i}`)
+      const jobs = Array.from({ length: 15 }, (_, i) =>
+        createHistoryJob(20 - i, `hist-${i}`)
       )
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: tasks })
+      mockGetHistory.mockResolvedValue(jobs)
 
       await store.update()
       expect(store.historyTasks).toHaveLength(10)
 
       store.maxHistoryItems = 5
-      mockGetHistory.mockResolvedValue({ History: tasks })
+      mockGetHistory.mockResolvedValue(jobs)
 
       await store.update()
       expect(store.historyTasks).toHaveLength(5)
@@ -633,19 +634,17 @@ describe('useQueueStore', () => {
 
   describe('computed properties', () => {
     it('tasks should combine pending, running, and history in correct order', async () => {
-      const running = createRunningTask(5, 'run-1')
-      const pending1 = createPendingTask(6, 'pend-1')
-      const pending2 = createPendingTask(7, 'pend-2')
-      const hist1 = createHistoryTask(3, 'hist-1')
-      const hist2 = createHistoryTask(4, 'hist-2')
+      const running = createRunningJob(5, 'run-1')
+      const pending1 = createPendingJob(6, 'pend-1')
+      const pending2 = createPendingJob(7, 'pend-2')
+      const hist1 = createHistoryJob(3, 'hist-1')
+      const hist2 = createHistoryJob(4, 'hist-2')
 
       mockGetQueue.mockResolvedValue({
         Running: [running],
         Pending: [pending1, pending2]
       })
-      mockGetHistory.mockResolvedValue({
-        History: [hist2, hist1]
-      })
+      mockGetHistory.mockResolvedValue([hist2, hist1])
 
       await store.update()
 
@@ -660,9 +659,9 @@ describe('useQueueStore', () => {
     it('hasPendingTasks should be true when pending tasks exist', async () => {
       mockGetQueue.mockResolvedValue({
         Running: [],
-        Pending: [createPendingTask(1, 'pend-1')]
+        Pending: [createPendingJob(1, 'pend-1')]
       })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.update()
       expect(store.hasPendingTasks).toBe(true)
@@ -670,21 +669,19 @@ describe('useQueueStore', () => {
 
     it('hasPendingTasks should be false when no pending tasks', async () => {
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.update()
       expect(store.hasPendingTasks).toBe(false)
     })
 
     it('lastHistoryQueueIndex should return highest queue index', async () => {
-      const hist1 = createHistoryTask(10, 'hist-1')
-      const hist2 = createHistoryTask(25, 'hist-2')
-      const hist3 = createHistoryTask(15, 'hist-3')
+      const hist1 = createHistoryJob(10, 'hist-1')
+      const hist2 = createHistoryJob(25, 'hist-2')
+      const hist3 = createHistoryJob(15, 'hist-3')
 
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({
-        History: [hist1, hist2, hist3]
-      })
+      mockGetHistory.mockResolvedValue([hist1, hist2, hist3])
 
       await store.update()
       expect(store.lastHistoryQueueIndex).toBe(25)
@@ -692,7 +689,7 @@ describe('useQueueStore', () => {
 
     it('lastHistoryQueueIndex should be -1 when no history', async () => {
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.update()
       expect(store.lastHistoryQueueIndex).toBe(-1)
@@ -702,19 +699,17 @@ describe('useQueueStore', () => {
   describe('clear()', () => {
     beforeEach(async () => {
       mockGetQueue.mockResolvedValue({
-        Running: [createRunningTask(1, 'run-1')],
-        Pending: [createPendingTask(2, 'pend-1')]
-      })
-      mockGetHistory.mockResolvedValue({
-        History: [createHistoryTask(3, 'hist-1')]
+        Running: [createRunningJob(1, 'run-1')],
+        Pending: [createPendingJob(2, 'pend-1')]
       })
+      mockGetHistory.mockResolvedValue([createHistoryJob(3, 'hist-1')])
       await store.update()
     })
 
     it('should clear both queue and history by default', async () => {
       mockClearItems.mockResolvedValue(undefined)
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.clear()
 
@@ -729,9 +724,7 @@ describe('useQueueStore', () => {
     it('should clear only queue when specified', async () => {
       mockClearItems.mockResolvedValue(undefined)
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({
-        History: [createHistoryTask(3, 'hist-1')]
-      })
+      mockGetHistory.mockResolvedValue([createHistoryJob(3, 'hist-1')])
 
       await store.clear(['queue'])
 
@@ -743,10 +736,10 @@ describe('useQueueStore', () => {
     it('should clear only history when specified', async () => {
       mockClearItems.mockResolvedValue(undefined)
       mockGetQueue.mockResolvedValue({
-        Running: [createRunningTask(1, 'run-1')],
-        Pending: [createPendingTask(2, 'pend-1')]
+        Running: [createRunningJob(1, 'run-1')],
+        Pending: [createPendingJob(2, 'pend-1')]
       })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.clear(['history'])
 
@@ -765,11 +758,12 @@ describe('useQueueStore', () => {
 
   describe('delete()', () => {
     it('should delete task from queue', async () => {
-      const task = new TaskItemImpl('Pending', createTaskPrompt(1, 'pend-1'))
+      const job = createPendingJob(1, 'pend-1')
+      const task = new TaskItemImpl(job)
 
       mockDeleteItem.mockResolvedValue(undefined)
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.delete(task)
 
@@ -777,16 +771,12 @@ describe('useQueueStore', () => {
     })
 
     it('should delete task from history', async () => {
-      const task = new TaskItemImpl(
-        'History',
-        createTaskPrompt(1, 'hist-1'),
-        createTaskStatus(),
-        createTaskOutput()
-      )
+      const job = createHistoryJob(1, 'hist-1')
+      const task = new TaskItemImpl(job, createTaskOutput())
 
       mockDeleteItem.mockResolvedValue(undefined)
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.delete(task)
 
@@ -794,11 +784,12 @@ describe('useQueueStore', () => {
     })
 
     it('should refresh store after deletion', async () => {
-      const task = new TaskItemImpl('Pending', createTaskPrompt(1, 'pend-1'))
+      const job = createPendingJob(1, 'pend-1')
+      const task = new TaskItemImpl(job)
 
       mockDeleteItem.mockResolvedValue(undefined)
       mockGetQueue.mockResolvedValue({ Running: [], Pending: [] })
-      mockGetHistory.mockResolvedValue({ History: [] })
+      mockGetHistory.mockResolvedValue([])
 
       await store.delete(task)
 
diff --git a/src/stores/queueStore.ts b/src/stores/queueStore.ts
index 6a02b16342..1c72e27d8a 100644
--- a/src/stores/queueStore.ts
+++ b/src/stores/queueStore.ts
@@ -2,36 +2,27 @@ import _ from 'es-toolkit/compat'
 import { defineStore } from 'pinia'
 import { computed, ref, shallowRef, toRaw, toValue } from 'vue'
 
-import { isCloud } from '@/platform/distribution/types'
-import { reconcileHistory } from '@/platform/remote/comfyui/history/reconciliation'
-import { useSettingStore } from '@/platform/settings/settingStore'
-import { getWorkflowFromHistory } from '@/platform/workflow/cloud'
+import { extractWorkflow } from '@/platform/remote/comfyui/jobs/fetchJobs'
 import type {
-  ComfyWorkflowJSON,
-  NodeId
-} from '@/platform/workflow/validation/schemas/workflowSchema'
-import { zExecutionErrorWsMessage } from '@/schemas/apiSchema'
+  APITaskType,
+  JobListItem,
+  TaskType
+} from '@/platform/remote/comfyui/jobs/jobTypes'
+import type { NodeId } from '@/platform/workflow/validation/schemas/workflowSchema'
 import type {
-  ExecutionErrorWsMessage,
-  HistoryTaskItem,
   ResultItem,
   StatusWsMessageStatus,
-  TaskItem,
-  TaskOutput,
-  TaskPrompt,
-  TaskStatus,
-  TaskType
+  TaskOutput
 } from '@/schemas/apiSchema'
 import { api } from '@/scripts/api'
 import type { ComfyApp } from '@/scripts/app'
 import { useExtensionService } from '@/services/extensionService'
+import { getJobDetail } from '@/services/jobOutputCache'
 import { useNodeOutputStore } from '@/stores/imagePreviewStore'
 import { useExecutionStore } from '@/stores/executionStore'
+import { useSettingStore } from '@/platform/settings/settingStore'
 import { getMediaTypeFromFilename } from '@/utils/formatUtil'
 
-// Task type used in the API.
-type APITaskType = 'queue' | 'history'
-
 enum TaskItemDisplayStatus {
   Running = 'Running',
   Pending = 'Pending',
@@ -214,32 +205,44 @@ export class ResultItemImpl {
   get supportsPreview(): boolean {
     return this.isImage || this.isVideo || this.isAudio || this.is3D
   }
+
+  static filterPreviewable(
+    outputs: readonly ResultItemImpl[]
+  ): ResultItemImpl[] {
+    return outputs.filter((o) => o.supportsPreview)
+  }
+
+  static findByUrl(items: readonly ResultItemImpl[], url?: string): number {
+    if (!url) return 0
+    const idx = items.findIndex((o) => o.url === url)
+    return idx >= 0 ? idx : 0
+  }
 }
 
 export class TaskItemImpl {
-  readonly taskType: TaskType
-  readonly prompt: TaskPrompt
-  readonly status?: TaskStatus
+  readonly job: JobListItem
   readonly outputs: TaskOutput
   readonly flatOutputs: ReadonlyArray<ResultItemImpl>
 
   constructor(
-    taskType: TaskType,
-    prompt: TaskPrompt,
-    status?: TaskStatus,
+    job: JobListItem,
     outputs?: TaskOutput,
     flatOutputs?: ReadonlyArray<ResultItemImpl>
   ) {
-    this.taskType = taskType
-    this.prompt = prompt
-    this.status = status
+    this.job = job
+    // If no outputs provided but job has preview_output, create synthetic outputs
+    // using the real nodeId and mediaType from the backend response
+    const effectiveOutputs =
+      outputs ??
+      (job.preview_output
+        ? {
+            [job.preview_output.nodeId]: {
+              [job.preview_output.mediaType]: [job.preview_output]
+            }
+          }
+        : {})
     // Remove animated outputs from the outputs object
-    // outputs.animated is an array of boolean values that indicates if the images
-    // array in the result are animated or not.
-    // The queueStore does not use this information.
-    // It is part of the legacy API response. We should redesign the backend API.
-    // https://github.com/Comfy-Org/ComfyUI_frontend/issues/2739
-    this.outputs = _.mapValues(outputs ?? {}, (nodeOutputs) =>
+    this.outputs = _.mapValues(effectiveOutputs, (nodeOutputs) =>
       _.omit(nodeOutputs, 'animated')
     )
     this.flatOutputs = flatOutputs ?? this.calculateFlatOutputs()
@@ -263,15 +266,31 @@ export class TaskItemImpl {
     )
   }
 
+  /** All outputs that support preview (images, videos, audio, 3D) */
+  get previewableOutputs(): readonly ResultItemImpl[] {
+    return ResultItemImpl.filterPreviewable(this.flatOutputs)
+  }
+
   get previewOutput(): ResultItemImpl | undefined {
+    const previewable = this.previewableOutputs
+    // Prefer saved media files over the temp previews
     return (
-      this.flatOutputs.find(
-        // Prefer saved media files over the temp previews
-        (output) => output.type === 'output' && output.supportsPreview
-      ) ?? this.flatOutputs.find((output) => output.supportsPreview)
+      previewable.find((output) => output.type === 'output') ?? previewable[0]
     )
   }
 
+  // Derive taskType from job status
+  get taskType(): TaskType {
+    switch (this.job.status) {
+      case 'in_progress':
+        return 'Running'
+      case 'pending':
+        return 'Pending'
+      default:
+        return 'History'
+    }
+  }
+
   get apiTaskType(): APITaskType {
     switch (this.taskType) {
       case 'Running':
@@ -287,85 +306,42 @@ export class TaskItemImpl {
   }
 
   get queueIndex() {
-    return this.prompt[0]
+    return this.job.priority
   }
 
   get promptId() {
-    return this.prompt[1]
+    return this.job.id
   }
 
-  get promptInputs() {
-    return this.prompt[2]
+  get outputsCount(): number | undefined {
+    return this.job.outputs_count ?? undefined
   }
 
-  get extraData() {
-    return this.prompt[3]
+  get status() {
+    return this.job.status
   }
 
-  get outputsToExecute() {
-    return this.prompt[4]
+  get errorMessage(): string | undefined {
+    return this.job.execution_error?.exception_message ?? undefined
   }
 
-  get extraPngInfo() {
-    return this.extraData.extra_pnginfo
+  get executionError() {
+    return this.job.execution_error ?? undefined
   }
 
-  get clientId() {
-    return this.extraData.client_id
+  get workflowId(): string | undefined {
+    return this.job.workflow_id ?? undefined
   }
 
-  get workflow(): ComfyWorkflowJSON | undefined {
-    return this.extraPngInfo?.workflow
+  get createTime(): number {
+    return this.job.create_time
   }
 
-  get messages() {
-    return this.status?.messages || []
-  }
-
-  /**
-   * Extracts the full execution error from status messages.
-   * Returns the ExecutionErrorWsMessage for detailed error dialogs.
-   * Uses Zod validation to ensure type safety.
-   */
-  get executionError(): ExecutionErrorWsMessage | undefined {
-    const messages = this.status?.messages
-    if (!Array.isArray(messages) || !messages.length) return undefined
-    for (const entry of messages) {
-      if (entry[0] === 'execution_error') {
-        const parsed = zExecutionErrorWsMessage.safeParse(entry[1])
-        if (!parsed.success) {
-          console.warn(
-            '[TaskItemImpl.executionError] Validation failed:',
-            parsed.error
-          )
-          return undefined
-        }
-        return parsed.data
-      }
-    }
-    return undefined
-  }
-
-  /**
-   * Server-provided creation time in milliseconds, when available.
-   *
-   * Sources:
-   * - Queue: 5th tuple element may be a metadata object with { create_time }.
-   * - History (Cloud V2): Adapter injects create_time into prompt[3].extra_data.
-   */
-  get createTime(): number | undefined {
-    const extra = (this.extraData as any) || {}
-    const fromExtra =
-      typeof extra.create_time === 'number' ? extra.create_time : undefined
-    if (typeof fromExtra === 'number') return fromExtra
-
-    return undefined
-  }
-
-  get interrupted() {
-    return _.some(
-      this.messages,
-      (message) => message[0] === 'execution_interrupted'
+  get interrupted(): boolean {
+    return (
+      this.job.status === 'failed' &&
+      this.job.execution_error?.exception_type ===
+        'InterruptProcessingException'
     )
   }
 
@@ -378,42 +354,26 @@ export class TaskItemImpl {
   }
 
   get displayStatus(): TaskItemDisplayStatus {
-    switch (this.taskType) {
-      case 'Running':
+    switch (this.job.status) {
+      case 'in_progress':
         return TaskItemDisplayStatus.Running
-      case 'Pending':
+      case 'pending':
         return TaskItemDisplayStatus.Pending
-      case 'History':
-        if (this.interrupted) return TaskItemDisplayStatus.Cancelled
-
-        switch (this.status!.status_str) {
-          case 'success':
-            return TaskItemDisplayStatus.Completed
-          case 'error':
-            return TaskItemDisplayStatus.Failed
-        }
+      case 'completed':
+        return TaskItemDisplayStatus.Completed
+      case 'failed':
+        return TaskItemDisplayStatus.Failed
+      case 'cancelled':
+        return TaskItemDisplayStatus.Cancelled
     }
   }
 
   get executionStartTimestamp() {
-    const message = this.messages.find(
-      (message) => message[0] === 'execution_start'
-    )
-    return message ? message[1].timestamp : undefined
+    return this.job.execution_start_time ?? undefined
   }
 
   get executionEndTimestamp() {
-    const messages = this.messages.filter((message) =>
-      [
-        'execution_success',
-        'execution_interrupted',
-        'execution_error'
-      ].includes(message[0])
-    )
-    if (!messages.length) {
-      return undefined
-    }
-    return _.max(messages.map((message) => message[1].timestamp))
+    return this.job.execution_end_time ?? undefined
   }
 
   get executionTime() {
@@ -429,28 +389,48 @@ export class TaskItemImpl {
       : undefined
   }
 
-  public async loadWorkflow(app: ComfyApp) {
-    let workflowData = this.workflow
+  /**
+   * Loads full outputs for tasks that only have preview data
+   * Returns a new TaskItemImpl with full outputs and execution status
+   */
+  public async loadFullOutputs(): Promise<TaskItemImpl> {
+    // Only load for history tasks (caller checks outputsCount > 1)
+    if (!this.isHistory) {
+      return this
+    }
+    const jobDetail = await getJobDetail(this.promptId)
 
-    if (isCloud && !workflowData && this.isHistory) {
-      workflowData = await getWorkflowFromHistory(
-        (url) => app.api.fetchApi(url),
-        this.promptId
-      )
+    if (!jobDetail?.outputs) {
+      return this
     }
 
+    // Create new TaskItemImpl with full outputs
+    return new TaskItemImpl(this.job, jobDetail.outputs)
+  }
+
+  public async loadWorkflow(app: ComfyApp) {
+    if (!this.isHistory) {
+      return
+    }
+
+    // Single fetch for both workflow and outputs (with caching)
+    const jobDetail = await getJobDetail(this.promptId)
+
+    const workflowData = await extractWorkflow(jobDetail)
     if (!workflowData) {
       return
     }
 
     await app.loadGraphData(toRaw(workflowData))
 
-    if (!this.outputs) {
+    // Use full outputs from job detail, or fall back to existing outputs
+    const outputsToLoad = jobDetail?.outputs ?? this.outputs
+    if (!outputsToLoad) {
       return
     }
 
     const nodeOutputsStore = useNodeOutputStore()
-    const rawOutputs = toRaw(this.outputs)
+    const rawOutputs = toRaw(outputsToLoad)
     for (const nodeExecutionId in rawOutputs) {
       nodeOutputsStore.setNodeOutputsByExecutionId(
         nodeExecutionId,
@@ -471,15 +451,10 @@ export class TaskItemImpl {
     return this.flatOutputs.map(
       (output: ResultItemImpl, i: number) =>
         new TaskItemImpl(
-          this.taskType,
-          [
-            this.queueIndex,
-            `${this.promptId}-${i}`,
-            this.promptInputs,
-            this.extraData,
-            this.outputsToExecute
-          ],
-          this.status,
+          {
+            ...this.job,
+            id: `${this.promptId}-${i}`
+          },
           {
             [output.nodeId]: {
               [output.mediaType]: [output]
@@ -489,32 +464,8 @@ export class TaskItemImpl {
         )
     )
   }
-
-  public toTaskItem(): TaskItem {
-    const item: HistoryTaskItem = {
-      taskType: 'History',
-      prompt: this.prompt,
-      status: this.status!,
-      outputs: this.outputs
-    }
-    return item
-  }
 }
 
-const sortNewestFirst = (a: TaskItemImpl, b: TaskItemImpl) =>
-  b.queueIndex - a.queueIndex
-
-const toTaskItemImpls = (tasks: TaskItem[]): TaskItemImpl[] =>
-  tasks.map(
-    (task) =>
-      new TaskItemImpl(
-        task.taskType,
-        task.prompt,
-        'status' in task ? task.status : undefined,
-        'outputs' in task ? task.outputs : undefined
-      )
-  )
-
 export const useQueueStore = defineStore('queue', () => {
   // Use shallowRef because TaskItemImpl instances are immutable and arrays are
   // replaced entirely (not mutated), so deep reactivity would waste performance
@@ -551,8 +502,9 @@ export const useQueueStore = defineStore('queue', () => {
         api.getHistory(maxHistoryItems.value)
       ])
 
-      runningTasks.value = toTaskItemImpls(queue.Running).sort(sortNewestFirst)
-      pendingTasks.value = toTaskItemImpls(queue.Pending).sort(sortNewestFirst)
+      // API returns pre-sorted data (sort_by=create_time&order=desc)
+      runningTasks.value = queue.Running.map((job) => new TaskItemImpl(job))
+      pendingTasks.value = queue.Pending.map((job) => new TaskItemImpl(job))
 
       const currentHistory = toValue(historyTasks)
 
@@ -560,7 +512,7 @@ export const useQueueStore = defineStore('queue', () => {
       const executionStore = useExecutionStore()
       appearedTasks.forEach((task) => {
         const promptIdString = String(task.promptId)
-        const workflowId = task.workflow?.id
+        const workflowId = task.workflowId
         if (workflowId && promptIdString) {
           executionStore.registerPromptWorkflowIdMapping(
             promptIdString,
@@ -569,22 +521,26 @@ export const useQueueStore = defineStore('queue', () => {
         }
       })
 
-      const items = reconcileHistory(
-        history.History,
-        currentHistory.map((impl) => impl.toTaskItem()),
-        toValue(maxHistoryItems),
-        toValue(lastHistoryQueueIndex)
-      )
+      // Sort by create_time descending and limit to maxItems
+      const sortedHistory = [...history]
+        .sort((a, b) => b.create_time - a.create_time)
+        .slice(0, toValue(maxHistoryItems))
 
       // Reuse existing TaskItemImpl instances or create new
+      // Must recreate if outputs_count changed (e.g., API started returning it)
       const existingByPromptId = new Map(
         currentHistory.map((impl) => [impl.promptId, impl])
       )
 
-      historyTasks.value = items.map(
-        (item) =>
-          existingByPromptId.get(item.prompt[1]) ?? toTaskItemImpls([item])[0]
-      )
+      historyTasks.value = sortedHistory.map((job) => {
+        const existing = existingByPromptId.get(job.id)
+        if (!existing) return new TaskItemImpl(job)
+        // Recreate if outputs_count changed to ensure lazy loading works
+        if (existing.outputsCount !== (job.outputs_count ?? undefined)) {
+          return new TaskItemImpl(job)
+        }
+        return existing
+      })
     } finally {
       isLoading.value = false
     }