feat(desktop): per-job model switcher in the cron detail panel and sidebar context menu

apps/desktop/src/app/chat/sidebar/cron-jobs-section.tsx

@@ -293,6 +293,13 @@ function CronJobSidebarRow({
       })}
       {renderActionItem(kit, { icon: 'watch', key: 'manage', label: c.manage, onSelect: onManage })}
       <kit.Separator />
+      {renderActionItem(kit, {
+        icon: 'settings',
+        key: 'change-model',
+        label: c.changeModel,
+        onSelect: onManage
+      })}
+      <kit.Separator />
       {renderActionItem(kit, {
         icon: 'trash',
         key: 'delete',

apps/desktop/src/app/cron/cron-job-model.ts

@@ -45,6 +45,14 @@ export interface CronEditorSaveValues {
   schedule: string
 }
 
+/** Build the narrow update payload used by the detail-panel model picker. */
+export function cronModelUpdates(provider: string, model: string): CronJobUpdates {
+  return {
+    model: model.trim() || null,
+    provider: provider.trim() || null
+  }
+}
+
 export function parseCronDeliveryTargets(value: string): string[] {
   const targets = value
     .split(',')

apps/desktop/src/app/cron/cron-model-switcher.test.ts

@@ -0,0 +1,87 @@
+import { describe, expect, it } from 'vitest'
+
+import { cronEditorUpdates, cronModelUpdates } from './cron-job-model'
+
+describe('cron model switcher — updateCronJob payload', () => {
+  it('pins a model and provider when both are provided', () => {
+    const updates = cronModelUpdates('anthropic', 'claude-sonnet-4')
+
+    expect(updates.model).toBe('claude-sonnet-4')
+    expect(updates.provider).toBe('anthropic')
+  })
+
+  it('clears a previous pin when model is empty', () => {
+    const updates = cronModelUpdates('', '')
+
+    expect(updates.model).toBeNull()
+    expect(updates.provider).toBeNull()
+  })
+
+  it('normalizes an empty provider when only a model is selected', () => {
+    const updates = cronModelUpdates('  ', ' gpt-4o ')
+
+    expect(updates.model).toBe('gpt-4o')
+    expect(updates.provider).toBeNull()
+  })
+})
+
+describe('cronEditorUpdates — model switcher integration', () => {
+  it('writes the model override for agent jobs (same path as the switcher)', () => {
+    const updates = cronEditorUpdates(
+      {
+        deliver: 'local',
+        model: 'deepseek-chat',
+        name: 'Daily summary',
+        prompt: 'go',
+        provider: 'deepseek',
+        schedule: '0 9 * * *'
+      },
+      { scriptOnlyJob: false }
+    )
+
+    expect(updates.model).toBe('deepseek-chat')
+    expect(updates.provider).toBe('deepseek')
+  })
+
+  it('clears a previous pin when the switcher resets to default', () => {
+    const updates = cronEditorUpdates(
+      { deliver: 'local', model: '', name: 'Daily', prompt: 'go', provider: '', schedule: '0 9 * * *' },
+      { scriptOnlyJob: false }
+    )
+
+    expect(updates.model).toBe(null)
+    expect(updates.provider).toBe(null)
+  })
+
+  it('uses a cheaper model for low-effort jobs and a powerful model for heavy jobs', () => {
+    // Low-effort summarising job
+    const cheapUpdates = cronEditorUpdates(
+      {
+        deliver: 'local',
+        model: 'deepseek-chat',
+        name: 'Feed summariser',
+        prompt: 'Summarise the feed',
+        provider: 'deepseek',
+        schedule: '0 * * * *'
+      },
+      { scriptOnlyJob: false }
+    )
+
+    expect(cheapUpdates.model).toBe('deepseek-chat')
+
+    // Heavy reasoning job
+    const heavyUpdates = cronEditorUpdates(
+      {
+        deliver: 'local',
+        model: 'claude-sonnet-4',
+        name: 'Weekly analysis',
+        prompt: 'Analyse the week',
+        provider: 'anthropic',
+        schedule: '0 9 * * 1'
+      },
+      { scriptOnlyJob: false }
+    )
+
+    expect(heavyUpdates.model).toBe('claude-sonnet-4')
+  })
+})

apps/desktop/src/app/cron/index.tsx

@@ -4,6 +4,7 @@ import { useQuery } from '@tanstack/react-query'
 import type * as React from 'react'
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react'
 
+import { ModelPickerDialog } from '@/components/model-picker'
 import { PageLoader } from '@/components/page-loader'
 import { Button } from '@/components/ui/button'
 import { Checkbox } from '@/components/ui/checkbox'
@@ -77,6 +78,7 @@ import { BlueprintSlotControl, blueprintSlotHelp, cleanBlueprintFieldError, init
 import { mutateAndRefreshCronJobs, refreshCronJobs, triggerAndRefreshCronJobs } from './cron-actions'
 import {
   cronEditorUpdates,
+  cronModelUpdates,
   jobIsScriptOnly,
   parseCronDeliveryTargets,
   toggleCronDeliveryTarget,
@@ -701,6 +703,19 @@ export function CronView({ onClose, onOpenSession, setStatusbarItemGroup: _setSt
               busy={busyJobTokens.has(selectedJob.id) || triggeringJobKeys.has(`${profile}:${selectedJob.id}`)}
               c={c}
               job={selectedJob}
+              onModelChange={async (provider, model) => {
+                const { refreshError, stale } = await mutateAndRefreshCronJobs(profile, () =>
+                  updateCronJob(selectedJob.id, cronModelUpdates(provider, model))
+                )
+
+                if (stale) {
+                  return
+                }
+
+                if (refreshError) {
+                  notifyError(refreshError, c.failedLoad)
+                }
+              }}
               onOpenSession={onOpenSession}
               onPauseResume={() => void handlePauseResume(selectedJob)}
               onTrigger={() => void handleTrigger(selectedJob)}
@@ -781,13 +796,15 @@ function CronJobDetail({
   busy,
   c,
   job,
+  onModelChange,
   onOpenSession,
   onPauseResume,
   onTrigger
 }: {
   busy: boolean
   c: Translations['cron']
   job: CronJob
+  onModelChange?: (provider: string, model: string) => Promise<void>
   onOpenSession?: (sessionId: string) => void
   onPauseResume: () => void
   onTrigger: () => void
@@ -797,6 +814,9 @@ function CronJobDetail({
   const deliver = jobDeliver(job)
   const prompt = jobPrompt(job)
   const modelOverride = jobModel(job)
+  const providerOverride = jobProvider(job)
+  const [modelPickerOpen, setModelPickerOpen] = useState(false)
+  const [modelBusy, setModelBusy] = useState(false)
 
   return (
     <PanelDetail>
@@ -813,6 +833,11 @@ function CronJobDetail({
             <PanelAction disabled={busy} icon="zap" onClick={onTrigger} primary>
               {c.triggerNow}
             </PanelAction>
+            {onModelChange && !jobIsScriptOnly(job) && (
+              <PanelAction disabled={busy || modelBusy} icon="settings" onClick={() => setModelPickerOpen(true)}>
+                {modelOverride || c.modelSwitcher}
+              </PanelAction>
+            )}
           </div>
         </div>
 
@@ -842,6 +867,28 @@ function CronJobDetail({
       ) : null}
 
       <CronJobRuns c={c} jobId={job.id} onOpenSession={onOpenSession} />
+
+      {onModelChange && !jobIsScriptOnly(job) && (
+        <ModelPickerDialog
+          contentClassName="z-[100]"
+          currentModel={modelOverride}
+          currentProvider={providerOverride}
+          onOpenChange={setModelPickerOpen}
+          onSelect={async ({ provider, model }) => {
+            setModelBusy(true)
+
+            try {
+              await onModelChange(provider, model)
+              notify({ kind: 'success', title: c.modelUpdated, message: truncate(jobTitle(job), 60) })
+            } catch {
+              notifyError(new Error(c.failedUpdate), c.failedUpdate)
+            } finally {
+              setModelBusy(false)
+            }
+          }}
+          open={modelPickerOpen}
+        />
+      )}
     </PanelDetail>
   )
 }

apps/desktop/src/i18n/ar.ts

@@ -1604,7 +1604,10 @@ export const ar = defineLocale({
     optional: 'اختياري',
     promptScheduleRequired: 'الرسالة والجدول مطلوبان',
     saveChanges: 'حفظ التغييرات',
-    createAction: 'إنشاء'
+    createAction: 'إنشاء',
+    modelSwitcher: 'النموذج',
+    modelUpdated: 'تم تحديث النموذج',
+    changeModel: 'تغيير النموذج'
   },
   artifacts: {
     search: 'بحث',

apps/desktop/src/i18n/en.ts

@@ -2045,6 +2045,9 @@ export const en: Translations = {
     scriptOnlyEditHint: 'Script-only job (no AI prompt). Job id:',
     saveChanges: 'Save changes',
     createAction: 'Create cron',
+    modelSwitcher: 'Model',
+    modelUpdated: 'Model updated',
+    changeModel: 'Change model',
     tabs: {
       jobs: 'Jobs',
       blueprints: 'Blueprints'

apps/desktop/src/i18n/ja.ts

@@ -1757,6 +1757,9 @@ export const ja = defineLocale({
     scriptOnlyEditHint: 'スクリプトのみのジョブ（AI プロンプトなし）。ジョブ ID:',
     saveChanges: '変更を保存',
     createAction: 'Cron を作成',
+    modelSwitcher: 'モデル',
+    modelUpdated: 'モデルを更新しました',
+    changeModel: 'モデルを変更',
     tabs: {
       jobs: 'ジョブ',
       blueprints: 'ブレーンプリント'

apps/desktop/src/i18n/types.ts

@@ -1718,6 +1718,9 @@ export interface Translations {
     scriptOnlyEditHint: string
     saveChanges: string
     createAction: string
+    modelSwitcher: string
+    modelUpdated: string
+    changeModel: string
     tabs: {
       jobs: string
       blueprints: string

apps/desktop/src/i18n/zh-hant.ts

@@ -1694,6 +1694,9 @@ export const zhHant = defineLocale({
     scriptOnlyEditHint: '僅腳本任務（無 AI 提示詞）。任務 ID：',
     saveChanges: '儲存變更',
     createAction: '建立排程工作',
+    modelSwitcher: '模型',
+    modelUpdated: '模型已更新',
+    changeModel: '變更模型',
     tabs: {
       jobs: '工作',
       blueprints: '藍圖'

apps/desktop/src/i18n/zh.ts

@@ -2227,6 +2227,9 @@ export const zh: Translations = {
     scriptOnlyEditHint: '仅脚本任务（无 AI 提示词）。任务 ID：',
     saveChanges: '保存更改',
     createAction: '创建定时任务',
+    modelSwitcher: '模型',
+    modelUpdated: '模型已更新',
+    changeModel: '更改模型',
     tabs: {
       jobs: '任务',
       blueprints: '蓝图'