diff --git a/Cargo.lock b/Cargo.lock
index 7feebbbd8..403354743 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5141,6 +5141,7 @@ dependencies = [
  "serde",
  "serde-big-array",
  "serde_json",
+ "serde_repr",
  "serde_yaml",
  "sha1",
  "sha2 0.10.9",
@@ -7176,6 +7177,17 @@ dependencies = [
  "serde_core",
 ]
 
+[[package]]
+name = "serde_repr"
+version = "0.1.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "175ee3e80ae9982737ca543e96133087cbd9a485eecc3bc4de9c1a37b47ea59c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "serde_spanned"
 version = "1.1.1"
diff --git a/Cargo.toml b/Cargo.toml
index d27b6d8a1..43b054015 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,6 +36,7 @@ crate-type = ["rlib"]
 [dependencies]
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
+serde_repr = "0.1"
 serde_yaml = "0.9"
 # (Removed `html2md` dep. dhat-rs profiling on real Gmail inboxes
 # showed `html2md::walk` and `html2md::tables::handle` allocating
diff --git a/app/src-tauri/Cargo.lock b/app/src-tauri/Cargo.lock
index 2ad79bb22..09e38275c 100644
--- a/app/src-tauri/Cargo.lock
+++ b/app/src-tauri/Cargo.lock
@@ -5394,6 +5394,7 @@ dependencies = [
  "sentry",
  "serde",
  "serde_json",
+ "serde_repr",
  "serde_yaml",
  "sha1",
  "sha2 0.10.9",
diff --git a/app/src/components/intelligence/SyncBudgetDialog.tsx b/app/src/components/intelligence/SyncBudgetDialog.tsx
new file mode 100644
index 000000000..4f8de3f91
--- /dev/null
+++ b/app/src/components/intelligence/SyncBudgetDialog.tsx
@@ -0,0 +1,139 @@
+import { useCallback, useState } from 'react';
+
+import { useT } from '../../lib/i18n/I18nContext';
+import { updateMemorySource } from '../../services/memorySourcesService';
+
+interface SyncBudgetDialogProps {
+  source: {
+    id: string;
+    label: string;
+    max_tokens_per_sync?: number | null;
+    max_cost_per_sync_usd?: number | null;
+    sync_depth_days?: number | null;
+  };
+  onClose: () => void;
+  onSaved: () => void;
+}
+
+export default function SyncBudgetDialog({ source, onClose, onSaved }: SyncBudgetDialogProps) {
+  const { t } = useT();
+  const [maxTokens, setMaxTokens] = useState(source.max_tokens_per_sync?.toString() ?? '');
+  const [maxCost, setMaxCost] = useState(source.max_cost_per_sync_usd?.toString() ?? '');
+  const [depthDays, setDepthDays] = useState<string>(source.sync_depth_days?.toString() ?? '');
+  const [saving, setSaving] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  const handleSave = useCallback(async () => {
+    setSaving(true);
+    setError(null);
+    try {
+      await updateMemorySource(source.id, {
+        max_tokens_per_sync: maxTokens ? Number(maxTokens) : undefined,
+        max_cost_per_sync_usd: maxCost ? Number(maxCost) : undefined,
+        sync_depth_days: depthDays ? Number(depthDays) : undefined,
+      } as Parameters<typeof updateMemorySource>[1]);
+      onSaved();
+      onClose();
+    } catch (e) {
+      setError(e instanceof Error ? e.message : String(e));
+    } finally {
+      setSaving(false);
+    }
+  }, [source.id, maxTokens, maxCost, depthDays, onSaved, onClose]);
+
+  return (
+    <div
+      className="fixed inset-0 z-50 flex items-center justify-center bg-black/40"
+      onClick={onClose}>
+      <div
+        className="bg-white dark:bg-neutral-900 rounded-xl shadow-xl border border-stone-200 dark:border-neutral-800 w-full max-w-md mx-4 p-5"
+        onClick={e => e.stopPropagation()}>
+        <h3 className="text-base font-semibold text-stone-900 dark:text-neutral-100 mb-1">
+          {t('syncBudget.title')}
+        </h3>
+        <p className="text-xs text-stone-500 dark:text-neutral-400 mb-4">{source.label}</p>
+
+        <div className="flex flex-col gap-4">
+          <div>
+            <label
+              htmlFor="budget-tokens"
+              className="block text-sm font-medium text-stone-700 dark:text-neutral-300">
+              {t('syncBudget.maxTokens')}
+            </label>
+            <p className="text-xs text-stone-500 dark:text-neutral-400 mt-0.5 mb-1">
+              {t('syncBudget.maxTokensHelp')}
+            </p>
+            <input
+              id="budget-tokens"
+              type="number"
+              min={0}
+              step={10000}
+              value={maxTokens}
+              onChange={e => setMaxTokens(e.target.value)}
+              placeholder={t('syncBudget.unlimited')}
+              className="w-full px-3 py-1.5 rounded-md border border-stone-200 dark:border-neutral-700 bg-white dark:bg-neutral-800 text-sm font-mono"
+            />
+          </div>
+
+          <div>
+            <label
+              htmlFor="budget-cost"
+              className="block text-sm font-medium text-stone-700 dark:text-neutral-300">
+              {t('syncBudget.maxCost')}
+            </label>
+            <p className="text-xs text-stone-500 dark:text-neutral-400 mt-0.5 mb-1">
+              {t('syncBudget.maxCostHelp')}
+            </p>
+            <input
+              id="budget-cost"
+              type="number"
+              min={0}
+              step={0.01}
+              value={maxCost}
+              onChange={e => setMaxCost(e.target.value)}
+              placeholder={t('syncBudget.unlimited')}
+              className="w-full px-3 py-1.5 rounded-md border border-stone-200 dark:border-neutral-700 bg-white dark:bg-neutral-800 text-sm font-mono"
+            />
+          </div>
+
+          <div>
+            <label
+              htmlFor="budget-depth"
+              className="block text-sm font-medium text-stone-700 dark:text-neutral-300">
+              {t('syncBudget.syncDepth')}
+            </label>
+            <p className="text-xs text-stone-500 dark:text-neutral-400 mt-0.5 mb-1">
+              {t('syncBudget.syncDepthHelp')}
+            </p>
+            <select
+              id="budget-depth"
+              value={depthDays}
+              onChange={e => setDepthDays(e.target.value)}
+              className="w-full px-3 py-1.5 rounded-md border border-stone-200 dark:border-neutral-700 bg-white dark:bg-neutral-800 text-sm">
+              <option value="">{t('syncBudget.allTime')}</option>
+              <option value="7">{t('syncBudget.days7')}</option>
+              <option value="30">{t('syncBudget.days30')}</option>
+              <option value="90">{t('syncBudget.days90')}</option>
+            </select>
+          </div>
+        </div>
+
+        {error && <p className="mt-3 text-xs text-coral-600">{error}</p>}
+
+        <div className="flex justify-end gap-2 mt-5">
+          <button
+            onClick={onClose}
+            className="px-3 py-1.5 rounded-md text-xs font-medium text-stone-600 dark:text-neutral-400 hover:bg-stone-100 dark:hover:bg-neutral-800">
+            {t('syncConfirm.cancel')}
+          </button>
+          <button
+            onClick={handleSave}
+            disabled={saving}
+            className="px-3 py-1.5 rounded-md bg-primary-600 hover:bg-primary-500 disabled:opacity-50 text-white text-xs font-medium">
+            {saving ? t('autonomy.statusSaving') : t('common.save')}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/app/src/components/intelligence/SyncConfirmDialog.tsx b/app/src/components/intelligence/SyncConfirmDialog.tsx
new file mode 100644
index 000000000..aa0650a2e
--- /dev/null
+++ b/app/src/components/intelligence/SyncConfirmDialog.tsx
@@ -0,0 +1,109 @@
+import { useEffect, useState } from 'react';
+
+import { useT } from '../../lib/i18n/I18nContext';
+import { callCoreRpc } from '../../services/coreRpcClient';
+
+interface SyncEstimate {
+  item_count: number;
+  estimated_tokens: number;
+  estimated_cost_usd: number;
+  budget_max_cost_usd: number | null;
+  budget_max_tokens: number | null;
+}
+
+interface SyncConfirmDialogProps {
+  sourceId: string;
+  onConfirm: () => void;
+  onCancel: () => void;
+}
+
+export default function SyncConfirmDialog({
+  sourceId,
+  onConfirm,
+  onCancel,
+}: SyncConfirmDialogProps) {
+  const { t } = useT();
+  const [estimate, setEstimate] = useState<SyncEstimate | null>(null);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    let cancelled = false;
+    setEstimate(null);
+    setError(null);
+    (async () => {
+      try {
+        const resp = await callCoreRpc<{ result: SyncEstimate }>({
+          method: 'openhuman.memory_sources_estimate_sync_cost',
+          params: { source_id: sourceId },
+        });
+        if (!cancelled) setEstimate(resp.result);
+      } catch (e) {
+        if (!cancelled) setError(e instanceof Error ? e.message : String(e));
+      }
+    })();
+    return () => {
+      cancelled = true;
+    };
+  }, [sourceId]);
+
+  const tokenStr = estimate
+    ? estimate.estimated_tokens > 1000
+      ? `${Math.round(estimate.estimated_tokens / 1000)}k`
+      : String(estimate.estimated_tokens)
+    : '';
+
+  return (
+    <div
+      className="fixed inset-0 z-50 flex items-center justify-center bg-black/40"
+      onClick={onCancel}>
+      <div
+        className="bg-white dark:bg-neutral-900 rounded-xl shadow-xl border border-stone-200 dark:border-neutral-800 w-full max-w-sm mx-4 p-5"
+        onClick={e => e.stopPropagation()}>
+        <h3 className="text-base font-semibold text-stone-900 dark:text-neutral-100 mb-3">
+          {t('syncConfirm.title')}
+        </h3>
+
+        {!estimate && !error && (
+          <p className="text-sm text-stone-500 dark:text-neutral-400">
+            {t('syncConfirm.estimating')}
+          </p>
+        )}
+
+        {error && <p className="text-sm text-coral-600">{error}</p>}
+
+        {estimate && (
+          <div className="flex flex-col gap-2">
+            <p className="text-sm text-stone-700 dark:text-neutral-300">
+              {t('syncConfirm.message')
+                .replace('{items}', String(estimate.item_count))
+                .replace('{tokens}', tokenStr)
+                .replace('{cost}', estimate.estimated_cost_usd.toFixed(4))}
+            </p>
+            {estimate.budget_max_cost_usd != null && (
+              <p className="text-xs text-stone-500 dark:text-neutral-400">
+                {t('syncConfirm.budgetNote').replace(
+                  '{max}',
+                  estimate.budget_max_cost_usd.toFixed(2)
+                )}
+              </p>
+            )}
+          </div>
+        )}
+
+        <div className="flex justify-end gap-2 mt-5">
+          <button
+            onClick={onCancel}
+            className="px-3 py-1.5 rounded-md text-xs font-medium text-stone-600 dark:text-neutral-400 hover:bg-stone-100 dark:hover:bg-neutral-800">
+            {t('syncConfirm.cancel')}
+          </button>
+          <button
+            onClick={onConfirm}
+            disabled={!estimate}
+            className="px-3 py-1.5 rounded-md bg-primary-600 hover:bg-primary-500 disabled:opacity-50 text-white text-xs font-medium">
+            {t('syncConfirm.proceed')}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/app/src/components/settings/panels/AgentActivityPanel.tsx b/app/src/components/settings/panels/AgentActivityPanel.tsx
new file mode 100644
index 000000000..dc8058d9c
--- /dev/null
+++ b/app/src/components/settings/panels/AgentActivityPanel.tsx
@@ -0,0 +1,182 @@
+import { useCallback, useEffect, useState } from 'react';
+
+import { useT } from '../../../lib/i18n/I18nContext';
+import { callCoreRpc } from '../../../services/coreRpcClient';
+
+interface ActivityLevelSettings {
+  level: number;
+  level_label: string;
+  sync_interval_secs: number | null;
+  heartbeat_enabled: boolean;
+  subconscious_enabled: boolean;
+  token_budget_per_cycle: number | null;
+  estimated_monthly_cost_min_usd: number;
+  estimated_monthly_cost_max_usd: number;
+}
+
+interface MonthlyCostSummary {
+  month: string;
+  total_cost_usd: number;
+  total_syncs: number;
+}
+
+const LEVELS = [
+  { key: 'off', value: 0 },
+  { key: 'minimal', value: 1 },
+  { key: 'moderate', value: 2 },
+  { key: 'active', value: 3 },
+  { key: 'alwaysOn', value: 4 },
+] as const;
+
+type LevelKey = (typeof LEVELS)[number]['key'];
+
+type Status = 'idle' | 'loading' | 'saving' | 'saved' | 'error';
+
+// These tables intentionally duplicate the backend constants in
+// AgentActivityLevel::estimated_monthly_cost_range (config/schema/activity_level.rs).
+// The backend only returns cost ranges for the *current* level, so we need a
+// static lookup to render cost estimates for all levels simultaneously.
+// A future RPC that returns ranges for all levels would allow removing these.
+function getCostMin(level: number): number {
+  return [0, 0.1, 1, 5, 20][level] ?? 0;
+}
+
+function getCostMax(level: number): number {
+  return [0, 0.5, 5, 20, 100][level] ?? 0;
+}
+
+export default function AgentActivityPanel() {
+  const { t } = useT();
+  const [settings, setSettings] = useState<ActivityLevelSettings | null>(null);
+  const [monthlyCost, setMonthlyCost] = useState<MonthlyCostSummary | null>(null);
+  const [status, setStatus] = useState<Status>('loading');
+  const [error, setError] = useState<string | null>(null);
+
+  const loadSettings = useCallback(async () => {
+    try {
+      setStatus('loading');
+      const [settingsResp, costResp] = await Promise.all([
+        callCoreRpc<{ result: ActivityLevelSettings }>({
+          method: 'openhuman.config_get_activity_level_settings',
+          params: {},
+        }),
+        callCoreRpc<{ result: MonthlyCostSummary }>({
+          method: 'openhuman.memory_sources_monthly_cost_summary',
+          params: {},
+        }),
+      ]);
+      setSettings(settingsResp.result);
+      setMonthlyCost(costResp.result);
+      setStatus('idle');
+    } catch (e) {
+      setError(e instanceof Error ? e.message : String(e));
+      setStatus('error');
+    }
+  }, []);
+
+  useEffect(() => {
+    loadSettings();
+  }, [loadSettings]);
+
+  const handleLevelChange = useCallback(async (levelKey: string) => {
+    try {
+      setStatus('saving');
+      setError(null);
+      const resp = await callCoreRpc<{ result: ActivityLevelSettings }>({
+        method: 'openhuman.config_update_activity_level_settings',
+        params: { level: levelKey },
+      });
+      setSettings(resp.result);
+      setStatus('saved');
+      setTimeout(() => setStatus('idle'), 2000);
+    } catch (e) {
+      setError(e instanceof Error ? e.message : String(e));
+      setStatus('error');
+    }
+  }, []);
+
+  if (status === 'loading' && !settings) {
+    return (
+      <div className="p-4 text-sm text-stone-500 dark:text-neutral-400">{t('common.loading')}</div>
+    );
+  }
+
+  return (
+    <div className="flex flex-col gap-4 p-4">
+      <div>
+        <h2 className="text-lg font-semibold text-stone-900 dark:text-neutral-100">
+          {t('activityLevel.title')}
+        </h2>
+        <p className="text-xs text-stone-600 dark:text-neutral-400 mt-1">
+          {t('activityLevel.description')}
+        </p>
+      </div>
+
+      {monthlyCost && monthlyCost.total_cost_usd > 0 && (
+        <div className="px-3 py-2 rounded-md bg-stone-100 dark:bg-neutral-800 text-sm">
+          <span className="font-medium text-stone-700 dark:text-neutral-300">
+            {t('activityLevel.currentMonth').replace(
+              '{amount}',
+              monthlyCost.total_cost_usd.toFixed(2)
+            )}
+          </span>
+        </div>
+      )}
+
+      <div className="flex flex-col gap-2">
+        {LEVELS.map(({ key, value }) => {
+          const isSelected = settings?.level === value;
+          const apiKey = key === 'alwaysOn' ? 'always_on' : (key as string);
+          const costMin = getCostMin(value);
+          const costMax = getCostMax(value);
+          return (
+            <button
+              key={key}
+              onClick={() => handleLevelChange(apiKey)}
+              disabled={status === 'saving'}
+              className={`w-full text-left px-4 py-3 rounded-lg border transition-colors ${
+                isSelected
+                  ? 'border-primary-500 bg-primary-50 dark:bg-primary-900/20'
+                  : 'border-stone-200 dark:border-neutral-800 bg-white dark:bg-neutral-900 hover:border-stone-300 dark:hover:border-neutral-700'
+              } ${status === 'saving' ? 'opacity-50' : ''}`}>
+              <div className="flex items-center justify-between">
+                <div>
+                  <div className="flex items-center gap-2">
+                    <span className="text-sm font-semibold text-stone-900 dark:text-neutral-100">
+                      {t(`activityLevel.${key as LevelKey}`)}
+                    </span>
+                    {value === 2 && (
+                      <span className="text-xs px-1.5 py-0.5 rounded bg-stone-200 dark:bg-neutral-700 text-stone-600 dark:text-neutral-400">
+                        {t('activityLevel.default')}
+                      </span>
+                    )}
+                  </div>
+                  <p className="text-xs text-stone-500 dark:text-neutral-400 mt-0.5">
+                    {t(`activityLevel.${key as LevelKey}Desc`)}
+                  </p>
+                </div>
+                <div className="text-xs font-mono text-stone-500 dark:text-neutral-400 shrink-0 ml-4">
+                  {costMin === 0 && costMax === 0
+                    ? t('activityLevel.costFree')
+                    : t('activityLevel.costRange')
+                        .replace('{min}', String(costMin))
+                        .replace('{max}', String(costMax))}
+                </div>
+              </div>
+            </button>
+          );
+        })}
+      </div>
+
+      <div role="status" aria-live="polite" aria-atomic="true" className="text-xs min-h-[1rem]">
+        {status === 'saving' && (
+          <span className="text-stone-500">{t('autonomy.statusSaving')}</span>
+        )}
+        {status === 'saved' && (
+          <span className="text-sage-700 dark:text-sage-400">{t('activityLevel.saved')}</span>
+        )}
+        {error && <span className="text-coral-600">{error}</span>}
+      </div>
+    </div>
+  );
+}
diff --git a/app/src/lib/i18n/ar.ts b/app/src/lib/i18n/ar.ts
index 32bdad73e..91985d2b2 100644
--- a/app/src/lib/i18n/ar.ts
+++ b/app/src/lib/i18n/ar.ts
@@ -4372,6 +4372,61 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'رفض التخزين المحلي',
   'pages.settings.account.security': 'الأمان',
   'pages.settings.account.securityDesc': 'وضع تخزين الأسرار وحالة سلسلة المفاتيح',
+
+  // Agent activity level
+  'activityLevel.title': 'مستوى نشاط الوكيل',
+  'activityLevel.description':
+    'تحكم في مدى استباقية وكيلك. المستويات الأعلى تستخدم المزيد من الرموز.',
+  'activityLevel.off': 'إيقاف',
+  'activityLevel.offDesc': 'لا معالجة في الخلفية. يزامن فقط عند الضغط على الزر.',
+  'activityLevel.minimal': 'أدنى حد',
+  'activityLevel.minimalDesc': 'مزامنة المصادر مرة يوميًا. لا رسائل استباقية.',
+  'activityLevel.moderate': 'متوسط',
+  'activityLevel.moderateDesc': 'مزامنة كل ساعة. ملخص يومي. يقترح إجراءات.',
+  'activityLevel.active': 'نشط',
+  'activityLevel.activeDesc': 'مزامنة كل 10 دقائق. يراقب القنوات ويصنف ويصيغ الردود.',
+  'activityLevel.alwaysOn': 'دائم التشغيل',
+  'activityLevel.alwaysOnDesc': 'مزامنة فورية. استقلالية كاملة ضمن الحدود المحددة.',
+  'activityLevel.currentMonth': 'هذا الشهر: ${amount}',
+  'activityLevel.saved': 'تم تحديث مستوى النشاط.',
+  'activityLevel.default': 'افتراضي',
+  'activityLevel.costFree': '0$',
+  'activityLevel.costRange': '~${min}–${max}/شهر',
+
+  // Sync budget dialog
+  'syncBudget.title': 'ميزانية المزامنة',
+  'syncBudget.maxTokens': 'الحد الأقصى للرموز لكل مزامنة',
+  'syncBudget.maxTokensHelp': 'توقف المزامنة عند استهلاك هذا العدد من الرموز.',
+  'syncBudget.maxCost': 'الحد الأقصى للتكلفة لكل مزامنة (USD)',
+  'syncBudget.maxCostHelp': 'حد التكلفة المطلق بالدولار لكل تشغيل مزامنة.',
+  'syncBudget.syncDepth': 'عمق المزامنة',
+  'syncBudget.syncDepthHelp': 'جلب العناصر من هذه الفترة الزمنية فقط.',
+  'syncBudget.days7': 'آخر 7 أيام',
+  'syncBudget.days30': 'آخر 30 يومًا',
+  'syncBudget.days90': 'آخر 90 يومًا',
+  'syncBudget.allTime': 'كل الأوقات',
+  'syncBudget.unlimited': 'غير محدود',
+  'syncBudget.saved': 'تم حفظ الميزانية.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'تأكيد المزامنة',
+  'syncConfirm.message': 'ستعالج هذه المزامنة ~{items} عناصر (~{tokens} رمز، تقديري ${cost}).',
+  'syncConfirm.budgetNote': 'حد الميزانية: ${max}',
+  'syncConfirm.proceed': 'المتابعة',
+  'syncConfirm.cancel': 'إلغاء',
+  'syncConfirm.estimating': 'جارٍ تقدير التكلفة...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} هذا الشهر',
+  'monthlyCost.noData': 'لا مزامنات هذا الشهر',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'النشاط',
+  'onboarding.custom.activity.title': 'نشاط الوكيل',
+  'onboarding.custom.activity.subtitle': 'مدى استباقية وكيلك في المراقبة والتصرف في الخلفية.',
+  'onboarding.custom.activity.defaultDesc': 'نشاط متوسط — مزامنة كل ساعة، ملخص يومي.',
+  'onboarding.custom.activity.configureDesc':
+    'اختر مستوى نشاطك الخاص. الإعداد في الإعدادات › مستوى نشاط الوكيل.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/bn.ts b/app/src/lib/i18n/bn.ts
index 380616ccb..8e6bb1d3e 100644
--- a/app/src/lib/i18n/bn.ts
+++ b/app/src/lib/i18n/bn.ts
@@ -4450,6 +4450,66 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'স্থানীয় সঞ্চয়স্থান প্রত্যাখ্যান করুন',
   'pages.settings.account.security': 'নিরাপত্তা',
   'pages.settings.account.securityDesc': 'গোপনীয়তা সঞ্চয়স্থান মোড এবং কিচেন অবস্থা',
+
+  // Agent activity level
+  'activityLevel.title': 'এজেন্ট কার্যকলাপের স্তর',
+  'activityLevel.description':
+    'আপনার এজেন্ট কতটা সক্রিয় তা নিয়ন্ত্রণ করুন। উচ্চ স্তরে বেশি টোকেন ব্যবহার হয়।',
+  'activityLevel.off': 'বন্ধ',
+  'activityLevel.offDesc': 'পটভূমিতে কোনো প্রক্রিয়াকরণ নেই। শুধুমাত্র বোতাম চাপলে সিঙ্ক করে।',
+  'activityLevel.minimal': 'ন্যূনতম',
+  'activityLevel.minimalDesc': 'প্রতিদিন একবার উৎস সিঙ্ক করে। কোনো সক্রিয় বার্তা নেই।',
+  'activityLevel.moderate': 'মাঝারি',
+  'activityLevel.moderateDesc':
+    'প্রতি ঘণ্টায় সিঙ্ক করে। দৈনিক সারসংক্ষেপ। কর্মপন্থা প্রস্তাব করে।',
+  'activityLevel.active': 'সক্রিয়',
+  'activityLevel.activeDesc':
+    'প্রতি ১০ মিনিটে সিঙ্ক করে। চ্যানেল পর্যবেক্ষণ, বাছাই ও উত্তর খসড়া করে।',
+  'activityLevel.alwaysOn': 'সর্বদা চালু',
+  'activityLevel.alwaysOnDesc': 'রিয়েল-টাইম সিঙ্ক। নির্ধারিত সীমার মধ্যে পূর্ণ স্বায়ত্তশাসন।',
+  'activityLevel.currentMonth': 'এই মাস: ${amount}',
+  'activityLevel.saved': 'কার্যকলাপের স্তর আপডেট হয়েছে।',
+  'activityLevel.default': 'ডিফল্ট',
+  'activityLevel.costFree': '$০',
+  'activityLevel.costRange': '~${min}–${max}/মাস',
+
+  // Sync budget dialog
+  'syncBudget.title': 'সিঙ্ক বাজেট',
+  'syncBudget.maxTokens': 'প্রতি সিঙ্কে সর্বোচ্চ টোকেন',
+  'syncBudget.maxTokensHelp': 'এতটা টোকেন ব্যবহার হলে সিঙ্ক বন্ধ করুন।',
+  'syncBudget.maxCost': 'প্রতি সিঙ্কে সর্বোচ্চ খরচ (USD)',
+  'syncBudget.maxCostHelp': 'প্রতিটি সিঙ্ক রানের জন্য নির্দিষ্ট ডলার সীমা।',
+  'syncBudget.syncDepth': 'সিঙ্ক গভীরতা',
+  'syncBudget.syncDepthHelp': 'কেবল এই সময়সীমার আইটেম আনুন।',
+  'syncBudget.days7': 'গত ৭ দিন',
+  'syncBudget.days30': 'গত ৩০ দিন',
+  'syncBudget.days90': 'গত ৯০ দিন',
+  'syncBudget.allTime': 'সব সময়',
+  'syncBudget.unlimited': 'সীমাহীন',
+  'syncBudget.saved': 'বাজেট সংরক্ষিত হয়েছে।',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'সিঙ্ক নিশ্চিত করুন',
+  'syncConfirm.message':
+    'এই সিঙ্ক ~{items}টি আইটেম (~{tokens} টোকেন, আনুমানিক ${cost}) প্রক্রিয়া করবে।',
+  'syncConfirm.budgetNote': 'বাজেট সীমা: ${max}',
+  'syncConfirm.proceed': 'চালিয়ে যান',
+  'syncConfirm.cancel': 'বাতিল',
+  'syncConfirm.estimating': 'খরচ অনুমান করা হচ্ছে...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': 'এই মাসে ${amount}',
+  'monthlyCost.noData': 'এই মাসে কোনো সিঙ্ক নেই',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'কার্যকলাপ',
+  'onboarding.custom.activity.title': 'এজেন্টের কার্যকলাপ',
+  'onboarding.custom.activity.subtitle':
+    'আপনার এজেন্ট পটভূমিতে কতটা সক্রিয়ভাবে পর্যবেক্ষণ ও কাজ করে।',
+  'onboarding.custom.activity.defaultDesc':
+    'মাঝারি কার্যকলাপ — প্রতি ঘণ্টায় সিঙ্ক, দৈনিক সারসংক্ষেপ।',
+  'onboarding.custom.activity.configureDesc':
+    'নিজের কার্যকলাপের স্তর বেছে নিন। সেটিংস › এজেন্ট কার্যকলাপ স্তরে কনফিগার করুন।',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/de.ts b/app/src/lib/i18n/de.ts
index c515e38cb..44d4918ec 100644
--- a/app/src/lib/i18n/de.ts
+++ b/app/src/lib/i18n/de.ts
@@ -4567,6 +4567,69 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Lokalen Speicher ablehnen',
   'pages.settings.account.security': 'Sicherheit',
   'pages.settings.account.securityDesc': 'Geheimnisspeicher-Modus und Schlüsselbund-Status',
+
+  // Agent activity level
+  'activityLevel.title': 'Agent-Aktivitätsstufe',
+  'activityLevel.description':
+    'Steuern Sie, wie proaktiv Ihr Agent ist. Höhere Stufen verbrauchen mehr Tokens.',
+  'activityLevel.off': 'Aus',
+  'activityLevel.offDesc': 'Keine Hintergrundverarbeitung. Synchronisiert nur auf Knopfdruck.',
+  'activityLevel.minimal': 'Minimal',
+  'activityLevel.minimalDesc':
+    'Quellen einmal täglich synchronisieren. Keine proaktiven Nachrichten.',
+  'activityLevel.moderate': 'Moderat',
+  'activityLevel.moderateDesc':
+    'Stündliche Synchronisierung. Tägliche Zusammenfassung. Schlägt Aktionen vor.',
+  'activityLevel.active': 'Aktiv',
+  'activityLevel.activeDesc':
+    'Alle 10 Minuten synchronisieren. Überwacht Kanäle, priorisiert und entwirft Antworten.',
+  'activityLevel.alwaysOn': 'Immer aktiv',
+  'activityLevel.alwaysOnDesc':
+    'Echtzeit-Synchronisierung. Volle Autonomie innerhalb von Leitplanken.',
+  'activityLevel.currentMonth': 'Dieser Monat: ${amount}',
+  'activityLevel.saved': 'Aktivitätsstufe aktualisiert.',
+  'activityLevel.default': 'Standard',
+  'activityLevel.costFree': '0 $',
+  'activityLevel.costRange': '~${min}–${max}/Monat',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Synchronisierungsbudget',
+  'syncBudget.maxTokens': 'Max. Tokens pro Synchronisierung',
+  'syncBudget.maxTokensHelp':
+    'Synchronisierung stoppen, sobald diese Anzahl von Tokens verbraucht wurde.',
+  'syncBudget.maxCost': 'Max. Kosten pro Synchronisierung (USD)',
+  'syncBudget.maxCostHelp': 'Absolutes Kostenlimit pro Synchronisierungslauf.',
+  'syncBudget.syncDepth': 'Synchronisierungstiefe',
+  'syncBudget.syncDepthHelp': 'Nur Elemente aus diesem Zeitfenster abrufen.',
+  'syncBudget.days7': 'Letzte 7 Tage',
+  'syncBudget.days30': 'Letzte 30 Tage',
+  'syncBudget.days90': 'Letzte 90 Tage',
+  'syncBudget.allTime': 'Gesamte Zeit',
+  'syncBudget.unlimited': 'Unbegrenzt',
+  'syncBudget.saved': 'Budget gespeichert.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Synchronisierung bestätigen',
+  'syncConfirm.message':
+    'Diese Synchronisierung verarbeitet ~{items} Elemente (~{tokens} Tokens, ca. ${cost}).',
+  'syncConfirm.budgetNote': 'Budgetlimit: ${max}',
+  'syncConfirm.proceed': 'Fortfahren',
+  'syncConfirm.cancel': 'Abbrechen',
+  'syncConfirm.estimating': 'Kosten werden geschätzt...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} diesen Monat',
+  'monthlyCost.noData': 'Keine Synchronisierungen diesen Monat',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Aktivität',
+  'onboarding.custom.activity.title': 'Agent-Aktivität',
+  'onboarding.custom.activity.subtitle':
+    'Wie proaktiv Ihr Agent im Hintergrund überwacht und handelt.',
+  'onboarding.custom.activity.defaultDesc':
+    'Moderate Aktivität – stündliche Synchronisierung, tägliche Zusammenfassung.',
+  'onboarding.custom.activity.configureDesc':
+    'Eigene Aktivitätsstufe wählen. Konfigurieren in Einstellungen › Agent-Aktivitätsstufe.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/en.ts b/app/src/lib/i18n/en.ts
index ab85b6715..016360ff0 100644
--- a/app/src/lib/i18n/en.ts
+++ b/app/src/lib/i18n/en.ts
@@ -608,12 +608,13 @@ const en: TranslationMap = {
   'onboarding.apiKeys.continue': 'Save and continue',
   'onboarding.apiKeys.saving': 'Saving…',
 
-  // Onboarding: Custom wizard (Inference / Voice / OAuth / Search / Memory)
+  // Onboarding: Custom wizard (Inference / Voice / OAuth / Search / Activity / Memory)
   'onboarding.custom.stepperInference': 'Inference',
   'onboarding.custom.stepperVoice': 'Voice',
   'onboarding.custom.stepperOAuth': 'OAuth',
   'onboarding.custom.stepperSearch': 'Search',
   'onboarding.custom.stepperEmbeddings': 'Embeddings',
+  'onboarding.custom.stepperActivity': 'Activity',
   'onboarding.custom.stepperMemory': 'Memory',
   'onboarding.custom.stepCounter': 'Step {n} of {total}',
   'onboarding.custom.defaultTitle': 'Default',
@@ -671,6 +672,15 @@ const en: TranslationMap = {
   'onboarding.custom.embeddings.configureDesc':
     'Bring your own embedding provider (OpenAI, Voyage, Ollama, etc.).',
 
+  // Onboarding: Custom > Activity
+  'onboarding.custom.activity.title': 'Agent Activity',
+  'onboarding.custom.activity.subtitle':
+    'How proactively your agent monitors and acts in the background.',
+  'onboarding.custom.activity.defaultDesc':
+    'Moderate activity — syncs every hour, sends a daily digest. Balanced cost and responsiveness.',
+  'onboarding.custom.activity.configureDesc':
+    'Pick your own activity level. Configure in Settings › Agent activity level.',
+
   // Onboarding: Custom > Memory
   'onboarding.custom.memory.title': 'Memory',
   'onboarding.custom.memory.subtitle':
@@ -680,6 +690,26 @@ const en: TranslationMap = {
   'onboarding.custom.memory.configureDesc':
     'Inspect, export, or wipe memory yourself. Configure in Settings › Memory.',
 
+  // Agent activity level
+  'activityLevel.title': 'Agent activity level',
+  'activityLevel.description':
+    'Control how proactive your agent is. Higher levels use more tokens.',
+  'activityLevel.off': 'Off',
+  'activityLevel.offDesc': 'No background processing. Syncs only when you press the button.',
+  'activityLevel.minimal': 'Minimal',
+  'activityLevel.minimalDesc': 'Sync sources once per day. No proactive messages.',
+  'activityLevel.moderate': 'Moderate',
+  'activityLevel.moderateDesc': 'Sync every hour. Daily digest. Suggests actions.',
+  'activityLevel.active': 'Active',
+  'activityLevel.activeDesc': 'Sync every 10 min. Monitors channels, triages, drafts replies.',
+  'activityLevel.alwaysOn': 'Always-on',
+  'activityLevel.alwaysOnDesc': 'Real-time sync. Full autonomy within guardrails.',
+  'activityLevel.currentMonth': 'This month: ${amount}',
+  'activityLevel.saved': 'Activity level updated.',
+  'activityLevel.default': 'default',
+  'activityLevel.costFree': '$0',
+  'activityLevel.costRange': '~${min}–${max}/mo',
+
   // Accounts
   'accounts.addAccount': 'Add Account',
   'accounts.manageAccounts': 'Manage Accounts',
@@ -4679,6 +4709,33 @@ const en: TranslationMap = {
   'keyring.settings.revokeConsent': 'Decline local storage',
   'pages.settings.account.security': 'Security',
   'pages.settings.account.securityDesc': 'Secret storage mode and keychain status',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Sync budget',
+  'syncBudget.maxTokens': 'Max tokens per sync',
+  'syncBudget.maxTokensHelp': 'Stop syncing once this many tokens are consumed.',
+  'syncBudget.maxCost': 'Max cost per sync (USD)',
+  'syncBudget.maxCostHelp': 'Hard dollar cap per sync run.',
+  'syncBudget.syncDepth': 'Sync depth',
+  'syncBudget.syncDepthHelp': 'Only fetch items from this time window.',
+  'syncBudget.days7': 'Last 7 days',
+  'syncBudget.days30': 'Last 30 days',
+  'syncBudget.days90': 'Last 90 days',
+  'syncBudget.allTime': 'All time',
+  'syncBudget.unlimited': 'Unlimited',
+  'syncBudget.saved': 'Budget saved.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Confirm sync',
+  'syncConfirm.message': 'This sync will process ~{items} items (~{tokens} tokens, est. ${cost}).',
+  'syncConfirm.budgetNote': 'Budget cap: ${max}',
+  'syncConfirm.proceed': 'Proceed',
+  'syncConfirm.cancel': 'Cancel',
+  'syncConfirm.estimating': 'Estimating cost...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} this month',
+  'monthlyCost.noData': 'No syncs this month',
 };
 
 export default en;
diff --git a/app/src/lib/i18n/es.ts b/app/src/lib/i18n/es.ts
index fbf428496..7cb1f0e91 100644
--- a/app/src/lib/i18n/es.ts
+++ b/app/src/lib/i18n/es.ts
@@ -4533,6 +4533,67 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Rechazar almacenamiento local',
   'pages.settings.account.security': 'Seguridad',
   'pages.settings.account.securityDesc': 'Modo de almacenamiento de secretos y estado del llavero',
+
+  // Agent activity level
+  'activityLevel.title': 'Nivel de actividad del agente',
+  'activityLevel.description':
+    'Controla qué tan proactivo es tu agente. Los niveles más altos usan más tokens.',
+  'activityLevel.off': 'Desactivado',
+  'activityLevel.offDesc':
+    'Sin procesamiento en segundo plano. Sincroniza solo al presionar el botón.',
+  'activityLevel.minimal': 'Mínimo',
+  'activityLevel.minimalDesc': 'Sincroniza fuentes una vez al día. Sin mensajes proactivos.',
+  'activityLevel.moderate': 'Moderado',
+  'activityLevel.moderateDesc': 'Sincroniza cada hora. Resumen diario. Sugiere acciones.',
+  'activityLevel.active': 'Activo',
+  'activityLevel.activeDesc':
+    'Sincroniza cada 10 min. Monitorea canales, prioriza y redacta respuestas.',
+  'activityLevel.alwaysOn': 'Siempre activo',
+  'activityLevel.alwaysOnDesc':
+    'Sincronización en tiempo real. Autonomía total dentro de los límites.',
+  'activityLevel.currentMonth': 'Este mes: ${amount}',
+  'activityLevel.saved': 'Nivel de actividad actualizado.',
+  'activityLevel.default': 'predeterminado',
+  'activityLevel.costFree': '$0',
+  'activityLevel.costRange': '~${min}–${max}/mes',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Presupuesto de sincronización',
+  'syncBudget.maxTokens': 'Tokens máximos por sincronización',
+  'syncBudget.maxTokensHelp': 'Detener la sincronización al consumir este número de tokens.',
+  'syncBudget.maxCost': 'Costo máximo por sincronización (USD)',
+  'syncBudget.maxCostHelp': 'Límite absoluto en dólares por ejecución de sincronización.',
+  'syncBudget.syncDepth': 'Profundidad de sincronización',
+  'syncBudget.syncDepthHelp': 'Solo obtener elementos de esta ventana de tiempo.',
+  'syncBudget.days7': 'Últimos 7 días',
+  'syncBudget.days30': 'Últimos 30 días',
+  'syncBudget.days90': 'Últimos 90 días',
+  'syncBudget.allTime': 'Todo el tiempo',
+  'syncBudget.unlimited': 'Ilimitado',
+  'syncBudget.saved': 'Presupuesto guardado.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Confirmar sincronización',
+  'syncConfirm.message':
+    'Esta sincronización procesará ~{items} elementos (~{tokens} tokens, est. ${cost}).',
+  'syncConfirm.budgetNote': 'Límite de presupuesto: ${max}',
+  'syncConfirm.proceed': 'Proceder',
+  'syncConfirm.cancel': 'Cancelar',
+  'syncConfirm.estimating': 'Calculando costo...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} este mes',
+  'monthlyCost.noData': 'Sin sincronizaciones este mes',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Actividad',
+  'onboarding.custom.activity.title': 'Actividad del agente',
+  'onboarding.custom.activity.subtitle':
+    'Qué tan proactivamente monitorea y actúa tu agente en segundo plano.',
+  'onboarding.custom.activity.defaultDesc':
+    'Actividad moderada — sincronización por hora, resumen diario.',
+  'onboarding.custom.activity.configureDesc':
+    'Elige tu propio nivel de actividad. Configurar en Ajustes › Nivel de actividad del agente.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/fr.ts b/app/src/lib/i18n/fr.ts
index 24ff48ae7..93abd8fd2 100644
--- a/app/src/lib/i18n/fr.ts
+++ b/app/src/lib/i18n/fr.ts
@@ -4548,6 +4548,68 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Refuser le stockage local',
   'pages.settings.account.security': 'Sécurité',
   'pages.settings.account.securityDesc': 'Mode de stockage des secrets et état du trousseau',
+
+  // Agent activity level
+  'activityLevel.title': "Niveau d'activité de l'agent",
+  'activityLevel.description':
+    'Contrôlez le niveau de proactivité de votre agent. Les niveaux élevés consomment plus de tokens.',
+  'activityLevel.off': 'Désactivé',
+  'activityLevel.offDesc':
+    'Aucun traitement en arrière-plan. Synchronise uniquement sur pression du bouton.',
+  'activityLevel.minimal': 'Minimal',
+  'activityLevel.minimalDesc': 'Synchronise les sources une fois par jour. Aucun message proactif.',
+  'activityLevel.moderate': 'Modéré',
+  'activityLevel.moderateDesc':
+    'Synchronise toutes les heures. Résumé quotidien. Suggère des actions.',
+  'activityLevel.active': 'Actif',
+  'activityLevel.activeDesc':
+    'Synchronise toutes les 10 min. Surveille les canaux, trie et rédige des réponses.',
+  'activityLevel.alwaysOn': 'Toujours actif',
+  'activityLevel.alwaysOnDesc':
+    'Synchronisation en temps réel. Pleine autonomie dans les limites définies.',
+  'activityLevel.currentMonth': 'Ce mois-ci : ${amount}',
+  'activityLevel.saved': "Niveau d'activité mis à jour.",
+  'activityLevel.default': 'par défaut',
+  'activityLevel.costFree': '0 $',
+  'activityLevel.costRange': '~${min}–${max}/mois',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Budget de synchronisation',
+  'syncBudget.maxTokens': 'Tokens max par synchronisation',
+  'syncBudget.maxTokensHelp': 'Arrêter la synchronisation une fois ce nombre de tokens consommé.',
+  'syncBudget.maxCost': 'Coût max par synchronisation (USD)',
+  'syncBudget.maxCostHelp': 'Plafond absolu en dollars par exécution de synchronisation.',
+  'syncBudget.syncDepth': 'Profondeur de synchronisation',
+  'syncBudget.syncDepthHelp': 'Récupérer uniquement les éléments de cette fenêtre temporelle.',
+  'syncBudget.days7': '7 derniers jours',
+  'syncBudget.days30': '30 derniers jours',
+  'syncBudget.days90': '90 derniers jours',
+  'syncBudget.allTime': 'Tout le temps',
+  'syncBudget.unlimited': 'Illimité',
+  'syncBudget.saved': 'Budget enregistré.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Confirmer la synchronisation',
+  'syncConfirm.message':
+    'Cette synchronisation traitera ~{items} éléments (~{tokens} tokens, est. ${cost}).',
+  'syncConfirm.budgetNote': 'Plafond budgétaire : ${max}',
+  'syncConfirm.proceed': 'Procéder',
+  'syncConfirm.cancel': 'Annuler',
+  'syncConfirm.estimating': 'Estimation du coût...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} ce mois-ci',
+  'monthlyCost.noData': 'Aucune synchronisation ce mois-ci',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Activité',
+  'onboarding.custom.activity.title': "Activité de l'agent",
+  'onboarding.custom.activity.subtitle':
+    'À quel point votre agent surveille et agit en arrière-plan.',
+  'onboarding.custom.activity.defaultDesc':
+    'Activité modérée — synchronisation horaire, résumé quotidien.',
+  'onboarding.custom.activity.configureDesc':
+    "Choisissez votre propre niveau d'activité. Configurer dans Paramètres › Niveau d'activité de l'agent.",
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/hi.ts b/app/src/lib/i18n/hi.ts
index 245983a51..4d32f43c4 100644
--- a/app/src/lib/i18n/hi.ts
+++ b/app/src/lib/i18n/hi.ts
@@ -4457,6 +4457,63 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'स्थानीय भंडारण अस्वीकार करें',
   'pages.settings.account.security': 'सुरक्षा',
   'pages.settings.account.securityDesc': 'रहस्य भंडारण मोड और कीचेन स्थिति',
+
+  // Agent activity level
+  'activityLevel.title': 'एजेंट गतिविधि स्तर',
+  'activityLevel.description':
+    'नियंत्रित करें कि आपका एजेंट कितना सक्रिय है। उच्च स्तर पर अधिक टोकन का उपयोग होता है।',
+  'activityLevel.off': 'बंद',
+  'activityLevel.offDesc': 'पृष्ठभूमि में कोई प्रसंस्करण नहीं। केवल बटन दबाने पर सिंक होता है।',
+  'activityLevel.minimal': 'न्यूनतम',
+  'activityLevel.minimalDesc': 'दिन में एक बार स्रोत सिंक करता है। कोई सक्रिय संदेश नहीं।',
+  'activityLevel.moderate': 'मध्यम',
+  'activityLevel.moderateDesc': 'हर घंटे सिंक करता है। दैनिक सारांश। क्रियाएं सुझाता है।',
+  'activityLevel.active': 'सक्रिय',
+  'activityLevel.activeDesc':
+    'हर 10 मिनट में सिंक करता है। चैनलों की निगरानी करता है, प्राथमिकता देता है और उत्तर तैयार करता है।',
+  'activityLevel.alwaysOn': 'हमेशा चालू',
+  'activityLevel.alwaysOnDesc': 'रीयल-टाइम सिंक। निर्धारित सीमाओं के भीतर पूर्ण स्वायत्तता।',
+  'activityLevel.currentMonth': 'इस महीने: ${amount}',
+  'activityLevel.saved': 'गतिविधि स्तर अपडेट किया गया।',
+  'activityLevel.default': 'डिफ़ॉल्ट',
+  'activityLevel.costFree': '$0',
+  'activityLevel.costRange': '~${min}–${max}/माह',
+
+  // Sync budget dialog
+  'syncBudget.title': 'सिंक बजट',
+  'syncBudget.maxTokens': 'प्रति सिंक अधिकतम टोकन',
+  'syncBudget.maxTokensHelp': 'इतने टोकन उपयोग होने पर सिंक बंद करें।',
+  'syncBudget.maxCost': 'प्रति सिंक अधिकतम लागत (USD)',
+  'syncBudget.maxCostHelp': 'प्रति सिंक रन के लिए डॉलर की सीमा।',
+  'syncBudget.syncDepth': 'सिंक गहराई',
+  'syncBudget.syncDepthHelp': 'केवल इस समय सीमा के आइटम लाएं।',
+  'syncBudget.days7': 'पिछले 7 दिन',
+  'syncBudget.days30': 'पिछले 30 दिन',
+  'syncBudget.days90': 'पिछले 90 दिन',
+  'syncBudget.allTime': 'सब समय',
+  'syncBudget.unlimited': 'असीमित',
+  'syncBudget.saved': 'बजट सहेजा गया।',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'सिंक की पुष्टि करें',
+  'syncConfirm.message': 'यह सिंक ~{items} आइटम (~{tokens} टोकन, अनुमानित ${cost}) प्रोसेस करेगा।',
+  'syncConfirm.budgetNote': 'बजट सीमा: ${max}',
+  'syncConfirm.proceed': 'आगे बढ़ें',
+  'syncConfirm.cancel': 'रद्द करें',
+  'syncConfirm.estimating': 'लागत का अनुमान लगाया जा रहा है...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': 'इस महीने ${amount}',
+  'monthlyCost.noData': 'इस महीने कोई सिंक नहीं',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'गतिविधि',
+  'onboarding.custom.activity.title': 'एजेंट गतिविधि',
+  'onboarding.custom.activity.subtitle':
+    'आपका एजेंट पृष्ठभूमि में कितनी सक्रियता से निगरानी और कार्य करता है।',
+  'onboarding.custom.activity.defaultDesc': 'मध्यम गतिविधि — प्रति घंटे सिंक, दैनिक सारांश।',
+  'onboarding.custom.activity.configureDesc':
+    'अपना गतिविधि स्तर चुनें। सेटिंग्स › एजेंट गतिविधि स्तर में कॉन्फ़िगर करें।',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/id.ts b/app/src/lib/i18n/id.ts
index 225e91304..96ae2414b 100644
--- a/app/src/lib/i18n/id.ts
+++ b/app/src/lib/i18n/id.ts
@@ -4467,6 +4467,67 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Tolak penyimpanan lokal',
   'pages.settings.account.security': 'Keamanan',
   'pages.settings.account.securityDesc': 'Mode penyimpanan rahasia dan status keychain',
+
+  // Agent activity level
+  'activityLevel.title': 'Tingkat aktivitas agen',
+  'activityLevel.description':
+    'Kendalikan seberapa proaktif agen Anda. Tingkat lebih tinggi menggunakan lebih banyak token.',
+  'activityLevel.off': 'Mati',
+  'activityLevel.offDesc':
+    'Tidak ada pemrosesan latar belakang. Hanya sinkronisasi saat tombol ditekan.',
+  'activityLevel.minimal': 'Minimal',
+  'activityLevel.minimalDesc': 'Sinkronisasi sumber sekali sehari. Tidak ada pesan proaktif.',
+  'activityLevel.moderate': 'Sedang',
+  'activityLevel.moderateDesc': 'Sinkronisasi setiap jam. Ringkasan harian. Menyarankan tindakan.',
+  'activityLevel.active': 'Aktif',
+  'activityLevel.activeDesc':
+    'Sinkronisasi setiap 10 menit. Memantau saluran, mengurutkan, dan menyusun balasan.',
+  'activityLevel.alwaysOn': 'Selalu aktif',
+  'activityLevel.alwaysOnDesc':
+    'Sinkronisasi real-time. Otonomi penuh dalam batas yang ditentukan.',
+  'activityLevel.currentMonth': 'Bulan ini: ${amount}',
+  'activityLevel.saved': 'Tingkat aktivitas diperbarui.',
+  'activityLevel.default': 'bawaan',
+  'activityLevel.costFree': '$0',
+  'activityLevel.costRange': '~${min}–${max}/bln',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Anggaran sinkronisasi',
+  'syncBudget.maxTokens': 'Token maksimum per sinkronisasi',
+  'syncBudget.maxTokensHelp': 'Hentikan sinkronisasi setelah sejumlah token ini dikonsumsi.',
+  'syncBudget.maxCost': 'Biaya maksimum per sinkronisasi (USD)',
+  'syncBudget.maxCostHelp': 'Batas dolar mutlak per jalannya sinkronisasi.',
+  'syncBudget.syncDepth': 'Kedalaman sinkronisasi',
+  'syncBudget.syncDepthHelp': 'Hanya ambil item dari jendela waktu ini.',
+  'syncBudget.days7': '7 hari terakhir',
+  'syncBudget.days30': '30 hari terakhir',
+  'syncBudget.days90': '90 hari terakhir',
+  'syncBudget.allTime': 'Sepanjang waktu',
+  'syncBudget.unlimited': 'Tidak terbatas',
+  'syncBudget.saved': 'Anggaran disimpan.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Konfirmasi sinkronisasi',
+  'syncConfirm.message':
+    'Sinkronisasi ini akan memproses ~{items} item (~{tokens} token, est. ${cost}).',
+  'syncConfirm.budgetNote': 'Batas anggaran: ${max}',
+  'syncConfirm.proceed': 'Lanjutkan',
+  'syncConfirm.cancel': 'Batal',
+  'syncConfirm.estimating': 'Memperkirakan biaya...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} bulan ini',
+  'monthlyCost.noData': 'Tidak ada sinkronisasi bulan ini',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Aktivitas',
+  'onboarding.custom.activity.title': 'Aktivitas agen',
+  'onboarding.custom.activity.subtitle':
+    'Seberapa proaktif agen Anda memantau dan bertindak di latar belakang.',
+  'onboarding.custom.activity.defaultDesc':
+    'Aktivitas sedang — sinkronisasi per jam, ringkasan harian.',
+  'onboarding.custom.activity.configureDesc':
+    'Pilih tingkat aktivitas Anda sendiri. Konfigurasi di Pengaturan › Tingkat aktivitas agen.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/it.ts b/app/src/lib/i18n/it.ts
index b22df856b..c91b1fa54 100644
--- a/app/src/lib/i18n/it.ts
+++ b/app/src/lib/i18n/it.ts
@@ -4525,6 +4525,69 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Rifiuta archiviazione locale',
   'pages.settings.account.security': 'Sicurezza',
   'pages.settings.account.securityDesc': 'Modalità archiviazione segreti e stato del portachiavi',
+
+  // Agent activity level
+  'activityLevel.title': "Livello di attività dell'agente",
+  'activityLevel.description':
+    'Controlla quanto è proattivo il tuo agente. I livelli più alti usano più token.',
+  'activityLevel.off': 'Disattivato',
+  'activityLevel.offDesc':
+    'Nessuna elaborazione in background. Sincronizza solo alla pressione del pulsante.',
+  'activityLevel.minimal': 'Minimo',
+  'activityLevel.minimalDesc':
+    'Sincronizza le sorgenti una volta al giorno. Nessun messaggio proattivo.',
+  'activityLevel.moderate': 'Moderato',
+  'activityLevel.moderateDesc': 'Sincronizza ogni ora. Riepilogo giornaliero. Suggerisce azioni.',
+  'activityLevel.active': 'Attivo',
+  'activityLevel.activeDesc':
+    'Sincronizza ogni 10 min. Monitora i canali, ordina e redige risposte.',
+  'activityLevel.alwaysOn': 'Sempre attivo',
+  'activityLevel.alwaysOnDesc':
+    'Sincronizzazione in tempo reale. Piena autonomia entro i limiti definiti.',
+  'activityLevel.currentMonth': 'Questo mese: ${amount}',
+  'activityLevel.saved': 'Livello di attività aggiornato.',
+  'activityLevel.default': 'predefinito',
+  'activityLevel.costFree': '0 $',
+  'activityLevel.costRange': '~${min}–${max}/mese',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Budget di sincronizzazione',
+  'syncBudget.maxTokens': 'Token massimi per sincronizzazione',
+  'syncBudget.maxTokensHelp':
+    'Ferma la sincronizzazione dopo aver consumato questo numero di token.',
+  'syncBudget.maxCost': 'Costo massimo per sincronizzazione (USD)',
+  'syncBudget.maxCostHelp': 'Limite assoluto in dollari per ogni esecuzione di sincronizzazione.',
+  'syncBudget.syncDepth': 'Profondità di sincronizzazione',
+  'syncBudget.syncDepthHelp': 'Recupera solo gli elementi di questa finestra temporale.',
+  'syncBudget.days7': 'Ultimi 7 giorni',
+  'syncBudget.days30': 'Ultimi 30 giorni',
+  'syncBudget.days90': 'Ultimi 90 giorni',
+  'syncBudget.allTime': 'Sempre',
+  'syncBudget.unlimited': 'Illimitato',
+  'syncBudget.saved': 'Budget salvato.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Conferma sincronizzazione',
+  'syncConfirm.message':
+    'Questa sincronizzazione elaborerà ~{items} elementi (~{tokens} token, stima ${cost}).',
+  'syncConfirm.budgetNote': 'Limite budget: ${max}',
+  'syncConfirm.proceed': 'Procedi',
+  'syncConfirm.cancel': 'Annulla',
+  'syncConfirm.estimating': 'Stima del costo in corso...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} questo mese',
+  'monthlyCost.noData': 'Nessuna sincronizzazione questo mese',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Attività',
+  'onboarding.custom.activity.title': "Attività dell'agente",
+  'onboarding.custom.activity.subtitle':
+    'Quanto proattivamente il tuo agente monitora e agisce in background.',
+  'onboarding.custom.activity.defaultDesc':
+    'Attività moderata — sincronizzazione oraria, riepilogo giornaliero.',
+  'onboarding.custom.activity.configureDesc':
+    "Scegli il tuo livello di attività. Configura in Impostazioni › Livello di attività dell'agente.",
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/ko.ts b/app/src/lib/i18n/ko.ts
index 2a222045a..9413695c3 100644
--- a/app/src/lib/i18n/ko.ts
+++ b/app/src/lib/i18n/ko.ts
@@ -4415,6 +4415,62 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': '로컬 저장소 거부',
   'pages.settings.account.security': '보안',
   'pages.settings.account.securityDesc': '비밀 저장 모드 및 키체인 상태',
+
+  // Agent activity level
+  'activityLevel.title': '에이전트 활동 수준',
+  'activityLevel.description':
+    '에이전트의 능동성을 조절하세요. 높은 수준은 더 많은 토큰을 사용합니다.',
+  'activityLevel.off': '끄기',
+  'activityLevel.offDesc': '백그라운드 처리 없음. 버튼을 눌러야만 동기화됩니다.',
+  'activityLevel.minimal': '최소',
+  'activityLevel.minimalDesc': '소스를 하루에 한 번 동기화합니다. 능동적 메시지 없음.',
+  'activityLevel.moderate': '보통',
+  'activityLevel.moderateDesc': '매 시간 동기화. 일일 요약. 작업을 제안합니다.',
+  'activityLevel.active': '활성',
+  'activityLevel.activeDesc': '10분마다 동기화. 채널 모니터링, 분류, 답변 초안 작성.',
+  'activityLevel.alwaysOn': '항상 켜짐',
+  'activityLevel.alwaysOnDesc': '실시간 동기화. 가이드라인 내 완전한 자율성.',
+  'activityLevel.currentMonth': '이번 달: ${amount}',
+  'activityLevel.saved': '활동 수준이 업데이트되었습니다.',
+  'activityLevel.default': '기본값',
+  'activityLevel.costFree': '$0',
+  'activityLevel.costRange': '~${min}–${max}/월',
+
+  // Sync budget dialog
+  'syncBudget.title': '동기화 예산',
+  'syncBudget.maxTokens': '동기화당 최대 토큰',
+  'syncBudget.maxTokensHelp': '이 토큰 수를 소비하면 동기화를 중지합니다.',
+  'syncBudget.maxCost': '동기화당 최대 비용 (USD)',
+  'syncBudget.maxCostHelp': '각 동기화 실행당 달러 한도.',
+  'syncBudget.syncDepth': '동기화 깊이',
+  'syncBudget.syncDepthHelp': '이 기간의 항목만 가져옵니다.',
+  'syncBudget.days7': '최근 7일',
+  'syncBudget.days30': '최근 30일',
+  'syncBudget.days90': '최근 90일',
+  'syncBudget.allTime': '전체 기간',
+  'syncBudget.unlimited': '무제한',
+  'syncBudget.saved': '예산이 저장되었습니다.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': '동기화 확인',
+  'syncConfirm.message': '이 동기화는 ~{items}개 항목 (~{tokens} 토큰, 예상 ${cost})을 처리합니다.',
+  'syncConfirm.budgetNote': '예산 한도: ${max}',
+  'syncConfirm.proceed': '진행',
+  'syncConfirm.cancel': '취소',
+  'syncConfirm.estimating': '비용 계산 중...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '이번 달 ${amount}',
+  'monthlyCost.noData': '이번 달 동기화 없음',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': '활동',
+  'onboarding.custom.activity.title': '에이전트 활동',
+  'onboarding.custom.activity.subtitle':
+    '에이전트가 백그라운드에서 얼마나 능동적으로 모니터링하고 행동하는지.',
+  'onboarding.custom.activity.defaultDesc': '보통 활동 — 매시간 동기화, 일일 요약.',
+  'onboarding.custom.activity.configureDesc':
+    '자신만의 활동 수준을 선택하세요. 설정 › 에이전트 활동 수준에서 구성하세요.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/pl.ts b/app/src/lib/i18n/pl.ts
index 3f58cb516..2ca862c31 100644
--- a/app/src/lib/i18n/pl.ts
+++ b/app/src/lib/i18n/pl.ts
@@ -4524,6 +4524,66 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Odmów lokalnego przechowywania',
   'pages.settings.account.security': 'Bezpieczeństwo',
   'pages.settings.account.securityDesc': 'Tryb przechowywania sekretów i stan pęku kluczy',
+
+  // Agent activity level
+  'activityLevel.title': 'Poziom aktywności agenta',
+  'activityLevel.description':
+    'Kontroluj, jak proaktywny jest Twój agent. Wyższe poziomy zużywają więcej tokenów.',
+  'activityLevel.off': 'Wyłączony',
+  'activityLevel.offDesc':
+    'Brak przetwarzania w tle. Synchronizuje tylko po naciśnięciu przycisku.',
+  'activityLevel.minimal': 'Minimalny',
+  'activityLevel.minimalDesc': 'Synchronizuje źródła raz dziennie. Brak proaktywnych wiadomości.',
+  'activityLevel.moderate': 'Umiarkowany',
+  'activityLevel.moderateDesc': 'Synchronizuje co godzinę. Codzienny skrót. Sugeruje działania.',
+  'activityLevel.active': 'Aktywny',
+  'activityLevel.activeDesc':
+    'Synchronizuje co 10 min. Monitoruje kanały, porządkuje i redaguje odpowiedzi.',
+  'activityLevel.alwaysOn': 'Zawsze włączony',
+  'activityLevel.alwaysOnDesc':
+    'Synchronizacja w czasie rzeczywistym. Pełna autonomia w granicach.',
+  'activityLevel.currentMonth': 'W tym miesiącu: ${amount}',
+  'activityLevel.saved': 'Poziom aktywności zaktualizowany.',
+  'activityLevel.default': 'domyślny',
+  'activityLevel.costFree': '0 $',
+  'activityLevel.costRange': '~${min}–${max}/mies.',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Budżet synchronizacji',
+  'syncBudget.maxTokens': 'Maks. tokenów na synchronizację',
+  'syncBudget.maxTokensHelp': 'Zatrzymaj synchronizację po zużyciu tej liczby tokenów.',
+  'syncBudget.maxCost': 'Maks. koszt na synchronizację (USD)',
+  'syncBudget.maxCostHelp': 'Bezwzględny limit w dolarach na jedno uruchomienie synchronizacji.',
+  'syncBudget.syncDepth': 'Głębokość synchronizacji',
+  'syncBudget.syncDepthHelp': 'Pobieraj tylko elementy z tego okna czasowego.',
+  'syncBudget.days7': 'Ostatnie 7 dni',
+  'syncBudget.days30': 'Ostatnie 30 dni',
+  'syncBudget.days90': 'Ostatnie 90 dni',
+  'syncBudget.allTime': 'Cały czas',
+  'syncBudget.unlimited': 'Bez limitu',
+  'syncBudget.saved': 'Budżet zapisany.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Potwierdź synchronizację',
+  'syncConfirm.message':
+    'Ta synchronizacja przetworzy ~{items} elementów (~{tokens} tokenów, szacunkowo ${cost}).',
+  'syncConfirm.budgetNote': 'Limit budżetu: ${max}',
+  'syncConfirm.proceed': 'Kontynuuj',
+  'syncConfirm.cancel': 'Anuluj',
+  'syncConfirm.estimating': 'Szacowanie kosztów...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} w tym miesiącu',
+  'monthlyCost.noData': 'Brak synchronizacji w tym miesiącu',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Aktywność',
+  'onboarding.custom.activity.title': 'Aktywność agenta',
+  'onboarding.custom.activity.subtitle': 'Jak proaktywnie Twój agent monitoruje i działa w tle.',
+  'onboarding.custom.activity.defaultDesc':
+    'Umiarkowana aktywność — synchronizacja co godzinę, codzienny skrót.',
+  'onboarding.custom.activity.configureDesc':
+    'Wybierz własny poziom aktywności. Skonfiguruj w Ustawieniach › Poziom aktywności agenta.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/pt.ts b/app/src/lib/i18n/pt.ts
index 2037e20de..afbc75798 100644
--- a/app/src/lib/i18n/pt.ts
+++ b/app/src/lib/i18n/pt.ts
@@ -4522,6 +4522,66 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Recusar armazenamento local',
   'pages.settings.account.security': 'Segurança',
   'pages.settings.account.securityDesc': 'Modo de armazenamento de segredos e status do chaveiro',
+
+  // Agent activity level
+  'activityLevel.title': 'Nível de atividade do agente',
+  'activityLevel.description':
+    'Controle o quão proativo é o seu agente. Níveis mais altos usam mais tokens.',
+  'activityLevel.off': 'Desligado',
+  'activityLevel.offDesc':
+    'Nenhum processamento em segundo plano. Sincroniza apenas ao pressionar o botão.',
+  'activityLevel.minimal': 'Mínimo',
+  'activityLevel.minimalDesc': 'Sincroniza fontes uma vez por dia. Sem mensagens proativas.',
+  'activityLevel.moderate': 'Moderado',
+  'activityLevel.moderateDesc': 'Sincroniza a cada hora. Resumo diário. Sugere ações.',
+  'activityLevel.active': 'Ativo',
+  'activityLevel.activeDesc':
+    'Sincroniza a cada 10 min. Monitora canais, prioriza e rascunha respostas.',
+  'activityLevel.alwaysOn': 'Sempre ativo',
+  'activityLevel.alwaysOnDesc': 'Sincronização em tempo real. Autonomia total dentro dos limites.',
+  'activityLevel.currentMonth': 'Este mês: ${amount}',
+  'activityLevel.saved': 'Nível de atividade atualizado.',
+  'activityLevel.default': 'padrão',
+  'activityLevel.costFree': '$0',
+  'activityLevel.costRange': '~${min}–${max}/mês',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Orçamento de sincronização',
+  'syncBudget.maxTokens': 'Tokens máximos por sincronização',
+  'syncBudget.maxTokensHelp': 'Parar a sincronização ao consumir este número de tokens.',
+  'syncBudget.maxCost': 'Custo máximo por sincronização (USD)',
+  'syncBudget.maxCostHelp': 'Limite absoluto em dólares por execução de sincronização.',
+  'syncBudget.syncDepth': 'Profundidade de sincronização',
+  'syncBudget.syncDepthHelp': 'Buscar apenas itens desta janela de tempo.',
+  'syncBudget.days7': 'Últimos 7 dias',
+  'syncBudget.days30': 'Últimos 30 dias',
+  'syncBudget.days90': 'Últimos 90 dias',
+  'syncBudget.allTime': 'Todo o tempo',
+  'syncBudget.unlimited': 'Ilimitado',
+  'syncBudget.saved': 'Orçamento salvo.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Confirmar sincronização',
+  'syncConfirm.message':
+    'Esta sincronização processará ~{items} itens (~{tokens} tokens, est. ${cost}).',
+  'syncConfirm.budgetNote': 'Limite de orçamento: ${max}',
+  'syncConfirm.proceed': 'Prosseguir',
+  'syncConfirm.cancel': 'Cancelar',
+  'syncConfirm.estimating': 'Estimando custo...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} este mês',
+  'monthlyCost.noData': 'Sem sincronizações este mês',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Atividade',
+  'onboarding.custom.activity.title': 'Atividade do agente',
+  'onboarding.custom.activity.subtitle':
+    'O quão proativamente seu agente monitora e age em segundo plano.',
+  'onboarding.custom.activity.defaultDesc':
+    'Atividade moderada — sincronização por hora, resumo diário.',
+  'onboarding.custom.activity.configureDesc':
+    'Escolha seu próprio nível de atividade. Configurar em Configurações › Nível de atividade do agente.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/ru.ts b/app/src/lib/i18n/ru.ts
index 18301d55c..6a1753780 100644
--- a/app/src/lib/i18n/ru.ts
+++ b/app/src/lib/i18n/ru.ts
@@ -4493,6 +4493,67 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': 'Отклонить локальное хранилище',
   'pages.settings.account.security': 'Безопасность',
   'pages.settings.account.securityDesc': 'Режим хранения секретов и статус связки ключей',
+
+  // Agent activity level
+  'activityLevel.title': 'Уровень активности агента',
+  'activityLevel.description':
+    'Управляйте проактивностью вашего агента. Более высокие уровни потребляют больше токенов.',
+  'activityLevel.off': 'Выкл.',
+  'activityLevel.offDesc': 'Нет фоновой обработки. Синхронизация только по нажатию кнопки.',
+  'activityLevel.minimal': 'Минимальный',
+  'activityLevel.minimalDesc': 'Синхронизация источников раз в день. Нет проактивных сообщений.',
+  'activityLevel.moderate': 'Умеренный',
+  'activityLevel.moderateDesc': 'Синхронизация каждый час. Ежедневная сводка. Предлагает действия.',
+  'activityLevel.active': 'Активный',
+  'activityLevel.activeDesc':
+    'Синхронизация каждые 10 мин. Мониторинг каналов, сортировка и составление ответов.',
+  'activityLevel.alwaysOn': 'Всегда включён',
+  'activityLevel.alwaysOnDesc':
+    'Синхронизация в реальном времени. Полная автономия в рамках ограничений.',
+  'activityLevel.currentMonth': 'В этом месяце: ${amount}',
+  'activityLevel.saved': 'Уровень активности обновлён.',
+  'activityLevel.default': 'по умолчанию',
+  'activityLevel.costFree': '0 $',
+  'activityLevel.costRange': '~${min}–${max}/мес.',
+
+  // Sync budget dialog
+  'syncBudget.title': 'Бюджет синхронизации',
+  'syncBudget.maxTokens': 'Макс. токенов на синхронизацию',
+  'syncBudget.maxTokensHelp':
+    'Остановить синхронизацию после потребления указанного количества токенов.',
+  'syncBudget.maxCost': 'Макс. стоимость на синхронизацию (USD)',
+  'syncBudget.maxCostHelp': 'Жёсткий лимит в долларах за один запуск синхронизации.',
+  'syncBudget.syncDepth': 'Глубина синхронизации',
+  'syncBudget.syncDepthHelp': 'Загружать только элементы из этого временного окна.',
+  'syncBudget.days7': 'Последние 7 дней',
+  'syncBudget.days30': 'Последние 30 дней',
+  'syncBudget.days90': 'Последние 90 дней',
+  'syncBudget.allTime': 'За всё время',
+  'syncBudget.unlimited': 'Без ограничений',
+  'syncBudget.saved': 'Бюджет сохранён.',
+
+  // Sync confirm dialog
+  'syncConfirm.title': 'Подтвердить синхронизацию',
+  'syncConfirm.message':
+    'Эта синхронизация обработает ~{items} элементов (~{tokens} токенов, ест. ${cost}).',
+  'syncConfirm.budgetNote': 'Лимит бюджета: ${max}',
+  'syncConfirm.proceed': 'Продолжить',
+  'syncConfirm.cancel': 'Отмена',
+  'syncConfirm.estimating': 'Оценка стоимости...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '${amount} в этом месяце',
+  'monthlyCost.noData': 'Синхронизаций в этом месяце нет',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': 'Активность',
+  'onboarding.custom.activity.title': 'Активность агента',
+  'onboarding.custom.activity.subtitle':
+    'Насколько проактивно агент отслеживает события и действует в фоне.',
+  'onboarding.custom.activity.defaultDesc':
+    'Умеренная активность — синхронизация каждый час, ежедневная сводка.',
+  'onboarding.custom.activity.configureDesc':
+    'Выберите свой уровень активности. Настройка в Параметры › Уровень активности агента.',
 };
 
 export default messages;
diff --git a/app/src/lib/i18n/zh-CN.ts b/app/src/lib/i18n/zh-CN.ts
index 1094d9919..fd6147eae 100644
--- a/app/src/lib/i18n/zh-CN.ts
+++ b/app/src/lib/i18n/zh-CN.ts
@@ -4236,6 +4236,60 @@ const messages: TranslationMap = {
   'keyring.settings.revokeConsent': '拒绝本地存储',
   'pages.settings.account.security': '安全',
   'pages.settings.account.securityDesc': '密钥存储模式和密钥链状态',
+
+  // Agent activity level
+  'activityLevel.title': '智能体活动级别',
+  'activityLevel.description': '控制您的智能体的主动程度。级别越高，消耗的令牌越多。',
+  'activityLevel.off': '关闭',
+  'activityLevel.offDesc': '无后台处理。仅在按下按钮时同步。',
+  'activityLevel.minimal': '最低',
+  'activityLevel.minimalDesc': '每天同步一次来源。无主动消息。',
+  'activityLevel.moderate': '适中',
+  'activityLevel.moderateDesc': '每小时同步。每日摘要。建议操作。',
+  'activityLevel.active': '活跃',
+  'activityLevel.activeDesc': '每10分钟同步。监控频道、分类并起草回复。',
+  'activityLevel.alwaysOn': '始终开启',
+  'activityLevel.alwaysOnDesc': '实时同步。在规定范围内完全自主。',
+  'activityLevel.currentMonth': '本月：${amount}',
+  'activityLevel.saved': '活动级别已更新。',
+  'activityLevel.default': '默认',
+  'activityLevel.costFree': '$0',
+  'activityLevel.costRange': '~${min}–${max}/月',
+
+  // Sync budget dialog
+  'syncBudget.title': '同步预算',
+  'syncBudget.maxTokens': '每次同步最大令牌数',
+  'syncBudget.maxTokensHelp': '消耗此数量的令牌后停止同步。',
+  'syncBudget.maxCost': '每次同步最大费用（USD）',
+  'syncBudget.maxCostHelp': '每次同步运行的绝对美元上限。',
+  'syncBudget.syncDepth': '同步深度',
+  'syncBudget.syncDepthHelp': '仅获取此时间窗口内的项目。',
+  'syncBudget.days7': '最近7天',
+  'syncBudget.days30': '最近30天',
+  'syncBudget.days90': '最近90天',
+  'syncBudget.allTime': '所有时间',
+  'syncBudget.unlimited': '无限制',
+  'syncBudget.saved': '预算已保存。',
+
+  // Sync confirm dialog
+  'syncConfirm.title': '确认同步',
+  'syncConfirm.message': '此同步将处理约{items}个项目（约{tokens}个令牌，预计${cost}）。',
+  'syncConfirm.budgetNote': '预算上限：${max}',
+  'syncConfirm.proceed': '继续',
+  'syncConfirm.cancel': '取消',
+  'syncConfirm.estimating': '正在估算费用...',
+
+  // Monthly cost badge
+  'monthlyCost.badge': '本月${amount}',
+  'monthlyCost.noData': '本月无同步',
+
+  // Onboarding: Custom > Activity
+  'onboarding.custom.stepperActivity': '活动',
+  'onboarding.custom.activity.title': '智能体活动',
+  'onboarding.custom.activity.subtitle': '您的智能体在后台监控和行动的主动程度。',
+  'onboarding.custom.activity.defaultDesc': '适中活动——每小时同步，每日摘要。',
+  'onboarding.custom.activity.configureDesc':
+    '选择您自己的活动级别。在设置 › 智能体活动级别中配置。',
 };
 
 export default messages;
diff --git a/app/src/pages/Settings.tsx b/app/src/pages/Settings.tsx
index d1c451e4f..1fb485267 100644
--- a/app/src/pages/Settings.tsx
+++ b/app/src/pages/Settings.tsx
@@ -5,6 +5,7 @@ import CostDashboardPanel from '../components/dashboard/CostDashboardPanel';
 import LogoutAndClearActions from '../components/settings/LogoutAndClearActions';
 import AboutPanel from '../components/settings/panels/AboutPanel';
 import AgentAccessPanel from '../components/settings/panels/AgentAccessPanel';
+import AgentActivityPanel from '../components/settings/panels/AgentActivityPanel';
 import AgentChatPanel from '../components/settings/panels/AgentChatPanel';
 import AgentEditorPage from '../components/settings/panels/AgentEditorPage';
 import AgentsPanel from '../components/settings/panels/AgentsPanel';
@@ -457,6 +458,13 @@ const Settings = () => {
       route: 'agent-access',
       icon: AgentAccessIcon,
     },
+    {
+      id: 'activity-level',
+      title: t('activityLevel.title'),
+      description: t('activityLevel.description'),
+      route: 'activity-level',
+      icon: LlmIcon,
+    },
   ];
 
   const composioSettingsItems = [
@@ -587,6 +595,7 @@ const Settings = () => {
         <Route path="persona" element={wrapSettingsPage(<PersonaPanel />)} />
         <Route path="appearance" element={wrapSettingsPage(<AppearancePanel />)} />
         <Route path="agent-access" element={wrapSettingsPage(<AgentAccessPanel />)} />
+        <Route path="activity-level" element={wrapSettingsPage(<AgentActivityPanel />)} />
         <Route path="approval-history" element={wrapSettingsPage(<ApprovalHistoryPanel />)} />
         <Route path="agents" element={wrapSettingsPage(<AgentsPanel />)} />
         <Route path="agents/new" element={wrapSettingsPage(<AgentEditorPage />)} />
diff --git a/app/src/pages/onboarding/Onboarding.tsx b/app/src/pages/onboarding/Onboarding.tsx
index 963e20c7c..4de345ad9 100644
--- a/app/src/pages/onboarding/Onboarding.tsx
+++ b/app/src/pages/onboarding/Onboarding.tsx
@@ -1,6 +1,7 @@
 import { Navigate, Route, Routes } from 'react-router-dom';
 
 import OnboardingLayout from './OnboardingLayout';
+import CustomActivityPage from './pages/CustomActivityPage';
 import CustomEmbeddingsPage from './pages/CustomEmbeddingsPage';
 import CustomInferencePage from './pages/CustomInferencePage';
 // Memory step is hidden from the flow for now (file kept on disk;
@@ -39,6 +40,7 @@ const Onboarding = () => {
         <Route path="custom/oauth" element={<CustomOAuthPage />} />
         <Route path="custom/search" element={<CustomSearchPage />} />
         <Route path="custom/embeddings" element={<CustomEmbeddingsPage />} />
+        <Route path="custom/activity" element={<CustomActivityPage />} />
         {/* <Route path="custom/memory" element={<CustomMemoryPage />} /> */}
         <Route path="*" element={<Navigate to="welcome" replace />} />
       </Route>
diff --git a/app/src/pages/onboarding/OnboardingContext.tsx b/app/src/pages/onboarding/OnboardingContext.tsx
index a962482d6..6f4eb7453 100644
--- a/app/src/pages/onboarding/OnboardingContext.tsx
+++ b/app/src/pages/onboarding/OnboardingContext.tsx
@@ -2,7 +2,14 @@ import { createContext, useContext } from 'react';
 
 export type AiMode = 'cloud' | 'custom';
 
-export type CustomStepKey = 'inference' | 'voice' | 'oauth' | 'search' | 'embeddings' | 'memory';
+export type CustomStepKey =
+  | 'inference'
+  | 'voice'
+  | 'oauth'
+  | 'search'
+  | 'embeddings'
+  | 'memory'
+  | 'activity';
 export type CustomStepChoice = 'default' | 'configure';
 
 export interface OnboardingDraft {
diff --git a/app/src/pages/onboarding/customWizardSteps.ts b/app/src/pages/onboarding/customWizardSteps.ts
index e9b09264f..d32b6a8cc 100644
--- a/app/src/pages/onboarding/customWizardSteps.ts
+++ b/app/src/pages/onboarding/customWizardSteps.ts
@@ -9,6 +9,7 @@ export const CUSTOM_WIZARD_STEPS: CustomStepKey[] = [
   'oauth',
   'search',
   'embeddings',
+  'activity',
   // 'memory',
 ];
 
@@ -18,6 +19,7 @@ export const CUSTOM_WIZARD_ROUTES: Record<CustomStepKey, string> = {
   oauth: '/onboarding/custom/oauth',
   search: '/onboarding/custom/search',
   embeddings: '/onboarding/custom/embeddings',
+  activity: '/onboarding/custom/activity',
   memory: '/onboarding/custom/memory',
 };
 
@@ -29,5 +31,6 @@ export const CUSTOM_WIZARD_SETTINGS_ROUTES: Record<CustomStepKey, string> = {
   oauth: '/settings/composio-routing',
   search: '/settings/tools',
   embeddings: '/settings/embeddings',
+  activity: '/settings/activity-level',
   memory: '/settings/memory-data',
 };
diff --git a/app/src/pages/onboarding/pages/CustomActivityPage.tsx b/app/src/pages/onboarding/pages/CustomActivityPage.tsx
new file mode 100644
index 000000000..39ae99cb6
--- /dev/null
+++ b/app/src/pages/onboarding/pages/CustomActivityPage.tsx
@@ -0,0 +1,8 @@
+import AgentActivityPanel from '../../../components/settings/panels/AgentActivityPanel';
+import CustomWizardConfigPage from './CustomWizardConfigPage';
+
+const CustomActivityPage = () => (
+  <CustomWizardConfigPage stepKey="activity" configureContent={<AgentActivityPanel />} />
+);
+
+export default CustomActivityPage;
diff --git a/app/src/pages/onboarding/steps/CustomWizardStep.tsx b/app/src/pages/onboarding/steps/CustomWizardStep.tsx
index 1ab95d70c..b08682eae 100644
--- a/app/src/pages/onboarding/steps/CustomWizardStep.tsx
+++ b/app/src/pages/onboarding/steps/CustomWizardStep.tsx
@@ -114,6 +114,7 @@ const CustomWizardStep = ({
     t('onboarding.custom.stepperOAuth'),
     t('onboarding.custom.stepperSearch'),
     t('onboarding.custom.stepperEmbeddings'),
+    t('onboarding.custom.stepperActivity'),
     t('onboarding.custom.stepperMemory'),
   ].slice(0, stepCount);
 
diff --git a/src/openhuman/config/ops.rs b/src/openhuman/config/ops.rs
index 9e078ba99..60b218849 100644
--- a/src/openhuman/config/ops.rs
+++ b/src/openhuman/config/ops.rs
@@ -913,6 +913,105 @@ pub async fn load_and_apply_autonomy_settings(
     apply_autonomy_settings(&mut config, update).await
 }
 
+// ── Agent Activity Level ───────────────────────────────────────────────
+
+/// Partial update for the agent activity level (0–4).
+#[derive(Debug, Clone, Default)]
+pub struct ActivityLevelSettingsPatch {
+    /// "off" | "minimal" | "moderate" | "active" | "always_on" (or "0"-"4").
+    pub level: Option<String>,
+}
+
+/// Returns the current activity level and its derived settings.
+pub async fn get_activity_level_settings() -> Result<RpcOutcome<serde_json::Value>, String> {
+    let config = load_config_with_timeout().await?;
+    let level = config.agent_activity_level;
+    let (cost_min, cost_max) = level.estimated_monthly_cost_range();
+    let value = serde_json::json!({
+        "level": level as u8,
+        "level_label": level.as_str(),
+        "sync_interval_secs": level.sync_interval_secs(),
+        "heartbeat_enabled": level.heartbeat_enabled(),
+        "subconscious_enabled": level.subconscious_enabled(),
+        "token_budget_per_cycle": level.token_budget_per_cycle(),
+        "estimated_monthly_cost_min_usd": cost_min,
+        "estimated_monthly_cost_max_usd": cost_max,
+    });
+    Ok(RpcOutcome::single_log(
+        value,
+        "activity level settings read",
+    ))
+}
+
+/// Updates the agent activity level and pushes it into the scheduler gate.
+pub async fn apply_activity_level_settings(
+    config: &mut Config,
+    update: ActivityLevelSettingsPatch,
+) -> Result<RpcOutcome<serde_json::Value>, String> {
+    use crate::openhuman::config::schema::activity_level::AgentActivityLevel;
+    use crate::openhuman::config::SchedulerGateMode;
+
+    if let Some(level_str) = update.level {
+        let level = AgentActivityLevel::from_str_opt(&level_str).ok_or_else(|| {
+            format!(
+                "invalid activity level '{}' \
+                 (expected off|minimal|moderate|active|always_on or 0-4)",
+                level_str
+            )
+        })?;
+        config.agent_activity_level = level;
+    }
+
+    // Derive the gate mode from the (possibly updated) activity level and
+    // persist it alongside the level so the saved config is self-consistent.
+    let level = config.agent_activity_level;
+    let gate_mode = match level {
+        AgentActivityLevel::Off => SchedulerGateMode::Off,
+        AgentActivityLevel::Minimal | AgentActivityLevel::Moderate => SchedulerGateMode::Auto,
+        AgentActivityLevel::Active | AgentActivityLevel::AlwaysOn => SchedulerGateMode::AlwaysOn,
+    };
+    config.scheduler_gate.mode = gate_mode;
+
+    config.save().await.map_err(|e| e.to_string())?;
+
+    let gate_cfg = config.scheduler_gate.clone();
+    crate::openhuman::scheduler_gate::gate::update_config(gate_cfg);
+
+    tracing::info!(
+        level = %level.as_str(),
+        gate_mode = %gate_mode.as_str(),
+        "[config:activity_level] activity level updated"
+    );
+
+    let (cost_min, cost_max) = level.estimated_monthly_cost_range();
+    let value = serde_json::json!({
+        "level": level as u8,
+        "level_label": level.as_str(),
+        "sync_interval_secs": level.sync_interval_secs(),
+        "heartbeat_enabled": level.heartbeat_enabled(),
+        "subconscious_enabled": level.subconscious_enabled(),
+        "token_budget_per_cycle": level.token_budget_per_cycle(),
+        "estimated_monthly_cost_min_usd": cost_min,
+        "estimated_monthly_cost_max_usd": cost_max,
+    });
+    Ok(RpcOutcome::new(
+        value,
+        vec![format!(
+            "activity level set to '{}' — saved to {}",
+            level.as_str(),
+            config.config_path.display()
+        )],
+    ))
+}
+
+/// Loads the configuration, applies activity level settings, and saves it.
+pub async fn load_and_apply_activity_level_settings(
+    update: ActivityLevelSettingsPatch,
+) -> Result<RpcOutcome<serde_json::Value>, String> {
+    let mut config = load_config_with_timeout().await?;
+    apply_activity_level_settings(&mut config, update).await
+}
+
 /// Serializes the load-modify-save in [`add_auto_approve_tool`] so two
 /// concurrent "Always allow" appends (different tools) can't read the same
 /// `auto_approve`, each push their own, and clobber the other on save
diff --git a/src/openhuman/config/schema/activity_level.rs b/src/openhuman/config/schema/activity_level.rs
new file mode 100644
index 000000000..d8d5e3465
--- /dev/null
+++ b/src/openhuman/config/schema/activity_level.rs
@@ -0,0 +1,157 @@
+//! Agent activity level — controls how proactive background AI is.
+//!
+//! Maps a single 0–4 knob into scheduler-gate mode, periodic sync
+//! cadence, heartbeat/subconscious toggles, and token budgets.
+
+use schemars::JsonSchema;
+use serde_repr::{Deserialize_repr, Serialize_repr};
+
+/// User-facing activity level for background AI work.
+///
+/// Each level is an opinionated preset that controls multiple subsystems:
+/// - Scheduler-gate mode (off / auto / always_on)
+/// - Periodic sync cadence (never / daily / hourly / 10min / realtime)
+/// - Heartbeat & subconscious inference (disabled / enabled)
+/// - Token budget per background cycle
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize_repr, Deserialize_repr, JsonSchema)]
+#[repr(u8)]
+pub enum AgentActivityLevel {
+    /// No background processing. Syncs only on manual press.
+    Off = 0,
+    /// Sync sources once per day. No proactive messages.
+    Minimal = 1,
+    /// Sync every hour. Daily digest. Suggests actions. (default)
+    Moderate = 2,
+    /// Sync every 10 min. Monitors channels, triages, drafts replies.
+    Active = 3,
+    /// Real-time sync. Full autonomy within guardrails.
+    AlwaysOn = 4,
+}
+
+impl AgentActivityLevel {
+    pub fn as_str(self) -> &'static str {
+        match self {
+            Self::Off => "off",
+            Self::Minimal => "minimal",
+            Self::Moderate => "moderate",
+            Self::Active => "active",
+            Self::AlwaysOn => "always_on",
+        }
+    }
+
+    pub fn from_str_opt(s: &str) -> Option<Self> {
+        match s.trim().to_ascii_lowercase().as_str() {
+            "off" | "0" => Some(Self::Off),
+            "minimal" | "1" => Some(Self::Minimal),
+            "moderate" | "2" => Some(Self::Moderate),
+            "active" | "3" => Some(Self::Active),
+            "always_on" | "alwayson" | "4" => Some(Self::AlwaysOn),
+            _ => None,
+        }
+    }
+
+    /// Periodic sync interval in seconds for this level.
+    /// Returns None for Off (manual-only).
+    pub fn sync_interval_secs(self) -> Option<u64> {
+        match self {
+            Self::Off => None,
+            Self::Minimal => Some(86_400), // 24h
+            Self::Moderate => Some(3_600), // 1h
+            Self::Active => Some(600),     // 10min
+            Self::AlwaysOn => Some(60),    // 1min
+        }
+    }
+
+    /// Whether heartbeat inference should run at this level.
+    pub fn heartbeat_enabled(self) -> bool {
+        matches!(self, Self::Moderate | Self::Active | Self::AlwaysOn)
+    }
+
+    /// Whether subconscious background reasoning should run.
+    pub fn subconscious_enabled(self) -> bool {
+        matches!(self, Self::Active | Self::AlwaysOn)
+    }
+
+    /// Per-background-cycle token budget. None = unlimited.
+    pub fn token_budget_per_cycle(self) -> Option<u64> {
+        match self {
+            Self::Off => Some(0),
+            Self::Minimal => Some(100_000),
+            Self::Moderate => Some(500_000),
+            Self::Active => Some(2_000_000),
+            Self::AlwaysOn => None,
+        }
+    }
+
+    /// Estimated monthly cost range (min, max) in USD for display.
+    pub fn estimated_monthly_cost_range(self) -> (f64, f64) {
+        match self {
+            Self::Off => (0.0, 0.0),
+            Self::Minimal => (0.10, 0.50),
+            Self::Moderate => (1.0, 5.0),
+            Self::Active => (5.0, 20.0),
+            Self::AlwaysOn => (20.0, 100.0),
+        }
+    }
+}
+
+impl Default for AgentActivityLevel {
+    fn default() -> Self {
+        Self::Moderate
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn default_is_moderate() {
+        assert_eq!(AgentActivityLevel::default(), AgentActivityLevel::Moderate);
+    }
+
+    #[test]
+    fn from_str_round_trips() {
+        for level in [
+            AgentActivityLevel::Off,
+            AgentActivityLevel::Minimal,
+            AgentActivityLevel::Moderate,
+            AgentActivityLevel::Active,
+            AgentActivityLevel::AlwaysOn,
+        ] {
+            let parsed = AgentActivityLevel::from_str_opt(level.as_str()).unwrap();
+            assert_eq!(parsed, level);
+        }
+    }
+
+    #[test]
+    fn serde_repr_round_trips() {
+        for level in [
+            AgentActivityLevel::Off,
+            AgentActivityLevel::Minimal,
+            AgentActivityLevel::Moderate,
+            AgentActivityLevel::Active,
+            AgentActivityLevel::AlwaysOn,
+        ] {
+            let json = serde_json::to_string(&level).unwrap();
+            let parsed: AgentActivityLevel = serde_json::from_str(&json).unwrap();
+            assert_eq!(parsed, level);
+        }
+    }
+
+    #[test]
+    fn sync_interval_none_for_off() {
+        assert_eq!(AgentActivityLevel::Off.sync_interval_secs(), None);
+        assert_eq!(
+            AgentActivityLevel::Minimal.sync_interval_secs(),
+            Some(86_400)
+        );
+    }
+
+    #[test]
+    fn heartbeat_disabled_for_low_levels() {
+        assert!(!AgentActivityLevel::Off.heartbeat_enabled());
+        assert!(!AgentActivityLevel::Minimal.heartbeat_enabled());
+        assert!(AgentActivityLevel::Moderate.heartbeat_enabled());
+    }
+}
diff --git a/src/openhuman/config/schema/mod.rs b/src/openhuman/config/schema/mod.rs
index 5a8980c3f..edcda1ebf 100644
--- a/src/openhuman/config/schema/mod.rs
+++ b/src/openhuman/config/schema/mod.rs
@@ -2,6 +2,8 @@
 //!
 //! Split into submodules; this module re-exports the main `Config` and all public types.
 
+pub mod activity_level;
+pub use activity_level::AgentActivityLevel;
 pub mod cloud_providers;
 pub use cloud_providers::{
     generate_provider_id, is_slug_reserved, migrate_legacy_fields, AuthStyle, CloudProviderCreds,
diff --git a/src/openhuman/config/schema/types.rs b/src/openhuman/config/schema/types.rs
index e468275ab..988ffc9e1 100644
--- a/src/openhuman/config/schema/types.rs
+++ b/src/openhuman/config/schema/types.rs
@@ -123,6 +123,12 @@ pub struct Config {
     #[serde(default)]
     pub scheduler_gate: SchedulerGateConfig,
 
+    /// User-facing activity-level knob (0–4) controlling how proactive
+    /// background AI work is. Maps into scheduler_gate mode, periodic sync
+    /// cadence, heartbeat/subconscious toggles. See issue #3117.
+    #[serde(default)]
+    pub agent_activity_level: AgentActivityLevel,
+
     #[serde(default)]
     pub agent: AgentConfig,
 
@@ -653,6 +659,7 @@ impl Default for Config {
             reliability: ReliabilityConfig::default(),
             scheduler: SchedulerConfig::default(),
             scheduler_gate: SchedulerGateConfig::default(),
+            agent_activity_level: AgentActivityLevel::default(),
             agent: AgentConfig::default(),
             orchestrator: OrchestratorModelConfig::default(),
             teams: HashMap::new(),
diff --git a/src/openhuman/config/schemas.rs b/src/openhuman/config/schemas.rs
index a127b5e9c..f2cf3aeaa 100644
--- a/src/openhuman/config/schemas.rs
+++ b/src/openhuman/config/schemas.rs
@@ -228,6 +228,12 @@ struct AgentSettingsUpdate {
     agent_timeout_secs: Option<u64>,
 }
 
+#[derive(Debug, Deserialize)]
+struct ActivityLevelSettingsUpdate {
+    /// "off" | "minimal" | "moderate" | "active" | "always_on" (or "0"-"4").
+    level: Option<String>,
+}
+
 pub fn all_controller_schemas() -> Vec<ControllerSchema> {
     vec![
         schemas("get_config"),
@@ -265,6 +271,8 @@ pub fn all_controller_schemas() -> Vec<ControllerSchema> {
         schemas("update_agent_settings"),
         schemas("update_search_settings"),
         schemas("get_search_settings"),
+        schemas("get_activity_level_settings"),
+        schemas("update_activity_level_settings"),
     ]
 }
 
@@ -410,6 +418,14 @@ pub fn all_registered_controllers() -> Vec<RegisteredController> {
             schema: schemas("get_search_settings"),
             handler: handle_get_search_settings,
         },
+        RegisteredController {
+            schema: schemas("get_activity_level_settings"),
+            handler: handle_get_activity_level_settings,
+        },
+        RegisteredController {
+            schema: schemas("update_activity_level_settings"),
+            handler: handle_update_activity_level_settings,
+        },
     ]
 }
 
@@ -912,6 +928,20 @@ pub fn schemas(function: &str) -> ControllerSchema {
                 "Engine, effective engine, limits, and per-provider configuration flags.",
             )],
         },
+        "get_activity_level_settings" => ControllerSchema {
+            namespace: "config",
+            function: "get_activity_level_settings",
+            description: "Get the agent activity level (0–4) and its derived settings: sync cadence, heartbeat/subconscious toggles, token budget, estimated monthly cost.",
+            inputs: vec![],
+            outputs: vec![json_output("settings", "Activity level settings with cost estimates.")],
+        },
+        "update_activity_level_settings" => ControllerSchema {
+            namespace: "config",
+            function: "update_activity_level_settings",
+            description: "Set the agent activity level. Immediately updates the scheduler gate mode and persists the change.",
+            inputs: vec![optional_string("level", "Activity level: off | minimal | moderate | active | always_on (or 0–4).")],
+            outputs: vec![json_output("settings", "Updated activity level settings with cost estimates.")],
+        },
         "agent_server_status" => ControllerSchema {
             namespace: "config",
             function: "agent_server_status",
@@ -1657,6 +1687,20 @@ fn handle_get_search_settings(_params: Map<String, Value>) -> ControllerFuture {
     })
 }
 
+fn handle_get_activity_level_settings(_params: Map<String, Value>) -> ControllerFuture {
+    Box::pin(async move { to_json(config_rpc::get_activity_level_settings().await?) })
+}
+
+fn handle_update_activity_level_settings(params: Map<String, Value>) -> ControllerFuture {
+    Box::pin(async move {
+        let update = deserialize_params::<ActivityLevelSettingsUpdate>(params)?;
+        let patch = config_rpc::ActivityLevelSettingsPatch {
+            level: update.level,
+        };
+        to_json(config_rpc::load_and_apply_activity_level_settings(patch).await?)
+    })
+}
+
 fn deserialize_params<T: DeserializeOwned>(params: Map<String, Value>) -> Result<T, String> {
     serde_json::from_value(Value::Object(params)).map_err(|e| format!("invalid params: {e}"))
 }
diff --git a/src/openhuman/memory_sources/readers/composio.rs b/src/openhuman/memory_sources/readers/composio.rs
index d39c0a6c5..a5847fb1b 100644
--- a/src/openhuman/memory_sources/readers/composio.rs
+++ b/src/openhuman/memory_sources/readers/composio.rs
@@ -90,6 +90,9 @@ mod tests {
             max_issues: None,
             max_prs: None,
             selector: None,
+            max_tokens_per_sync: None,
+            max_cost_per_sync_usd: None,
+            sync_depth_days: None,
         }
     }
 
diff --git a/src/openhuman/memory_sources/readers/folder.rs b/src/openhuman/memory_sources/readers/folder.rs
index 2e29e45a4..17935037e 100644
--- a/src/openhuman/memory_sources/readers/folder.rs
+++ b/src/openhuman/memory_sources/readers/folder.rs
@@ -166,6 +166,9 @@ mod tests {
             max_issues: None,
             max_prs: None,
             selector: None,
+            max_tokens_per_sync: None,
+            max_cost_per_sync_usd: None,
+            sync_depth_days: None,
         }
     }
 
diff --git a/src/openhuman/memory_sources/readers/twitter.rs b/src/openhuman/memory_sources/readers/twitter.rs
index 469ab8170..b4eefabeb 100644
--- a/src/openhuman/memory_sources/readers/twitter.rs
+++ b/src/openhuman/memory_sources/readers/twitter.rs
@@ -91,6 +91,9 @@ mod tests {
             max_issues: None,
             max_prs: None,
             selector: None,
+            max_tokens_per_sync: None,
+            max_cost_per_sync_usd: None,
+            sync_depth_days: None,
         }
     }
 
diff --git a/src/openhuman/memory_sources/registry.rs b/src/openhuman/memory_sources/registry.rs
index 98d0afd48..bbfdedf28 100644
--- a/src/openhuman/memory_sources/registry.rs
+++ b/src/openhuman/memory_sources/registry.rs
@@ -102,6 +102,15 @@ pub async fn update_source(
     if let Some(selector) = patch.selector {
         entry.selector = Some(selector);
     }
+    if let Some(v) = patch.max_tokens_per_sync {
+        entry.max_tokens_per_sync = Some(v);
+    }
+    if let Some(v) = patch.max_cost_per_sync_usd {
+        entry.max_cost_per_sync_usd = Some(v);
+    }
+    if let Some(v) = patch.sync_depth_days {
+        entry.sync_depth_days = Some(v);
+    }
 
     entry.validate()?;
     let updated = entry.clone();
@@ -212,6 +221,9 @@ pub async fn upsert_composio_source(
         since_days: None,
         max_items: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     };
     config.memory_sources.push(entry.clone());
     config
@@ -257,6 +269,12 @@ pub struct MemorySourcePatch {
     pub max_items: Option<u32>,
     #[serde(default)]
     pub selector: Option<String>,
+    #[serde(default)]
+    pub max_tokens_per_sync: Option<u64>,
+    #[serde(default)]
+    pub max_cost_per_sync_usd: Option<f64>,
+    #[serde(default)]
+    pub sync_depth_days: Option<u32>,
 }
 
 #[cfg(test)]
diff --git a/src/openhuman/memory_sources/rpc.rs b/src/openhuman/memory_sources/rpc.rs
index 1a9042ec4..367b87de0 100644
--- a/src/openhuman/memory_sources/rpc.rs
+++ b/src/openhuman/memory_sources/rpc.rs
@@ -81,6 +81,12 @@ pub struct AddRequest {
     pub max_items: Option<u32>,
     #[serde(default)]
     pub selector: Option<String>,
+    #[serde(default)]
+    pub max_tokens_per_sync: Option<u64>,
+    #[serde(default)]
+    pub max_cost_per_sync_usd: Option<f64>,
+    #[serde(default)]
+    pub sync_depth_days: Option<u32>,
 }
 
 fn default_true() -> bool {
@@ -121,6 +127,9 @@ pub async fn add_rpc(req: AddRequest) -> Result<RpcOutcome<AddResponse>, String>
         since_days: req.since_days,
         max_items: req.max_items,
         selector: req.selector,
+        max_tokens_per_sync: req.max_tokens_per_sync,
+        max_cost_per_sync_usd: req.max_cost_per_sync_usd,
+        sync_depth_days: req.sync_depth_days,
     };
 
     let source = registry::add_source(entry).await?;
@@ -282,3 +291,106 @@ pub async fn sync_audit_log_rpc() -> Result<RpcOutcome<SyncAuditLogResponse>, St
     let entries = crate::openhuman::memory_sync::sources::audit::read_audit_log(&config);
     Ok(RpcOutcome::new(SyncAuditLogResponse { entries }, vec![]))
 }
+
+// ── Estimate Sync Cost ──
+
+#[derive(Debug, serde::Deserialize)]
+pub struct EstimateSyncCostRequest {
+    pub source_id: String,
+}
+
+#[derive(Debug, serde::Serialize)]
+pub struct EstimateSyncCostResponse {
+    pub source_id: String,
+    pub item_count: u32,
+    pub estimated_tokens: u64,
+    pub estimated_cost_usd: f64,
+    pub budget_max_cost_usd: Option<f64>,
+    pub budget_max_tokens: Option<u64>,
+}
+
+pub async fn estimate_sync_cost_rpc(
+    req: EstimateSyncCostRequest,
+) -> Result<RpcOutcome<EstimateSyncCostResponse>, String> {
+    tracing::debug!(source_id = %req.source_id, "[memory_sources] estimate_sync_cost_rpc: entry");
+
+    let source = registry::get_source(&req.source_id)
+        .await?
+        .ok_or_else(|| format!("source '{}' not found", req.source_id))?;
+
+    let config = config_rpc::load_config_with_timeout().await?;
+    let reader = readers::reader_for(&source.kind);
+    let items = reader.list_items(&source, &config).await?;
+
+    let item_count = items.len() as u32;
+    // estimated_tokens includes both input (500/item) and output (100/item)
+    // to be consistent with the cost calculation below.
+    let estimated_input_tokens = item_count as u64 * 500;
+    let estimated_output_tokens = item_count as u64 * 100;
+    let estimated_tokens = estimated_input_tokens + estimated_output_tokens;
+    let estimated_cost_usd = crate::openhuman::memory_sync::sources::audit::estimate_cost_usd(
+        estimated_input_tokens,
+        estimated_output_tokens,
+    );
+
+    Ok(RpcOutcome::new(
+        EstimateSyncCostResponse {
+            source_id: req.source_id,
+            item_count,
+            estimated_tokens,
+            estimated_cost_usd,
+            budget_max_cost_usd: source.max_cost_per_sync_usd,
+            budget_max_tokens: source.max_tokens_per_sync,
+        },
+        vec![],
+    ))
+}
+
+// ── Monthly Cost Summary ──
+
+#[derive(Debug, serde::Serialize)]
+pub struct MonthlyCostSummaryResponse {
+    pub month: String,
+    pub total_cost_usd: f64,
+    pub total_syncs: u32,
+    pub total_items: u32,
+    pub total_input_tokens: u64,
+    pub total_output_tokens: u64,
+}
+
+pub async fn monthly_cost_summary_rpc() -> Result<RpcOutcome<MonthlyCostSummaryResponse>, String> {
+    tracing::debug!("[memory_sources] monthly_cost_summary_rpc: entry");
+    let config = config_rpc::load_config_with_timeout().await?;
+    let entries = crate::openhuman::memory_sync::sources::audit::read_audit_log(&config);
+
+    let now = chrono::Utc::now();
+    let month_str = now.format("%Y-%m").to_string();
+
+    let mut total_cost_usd = 0.0f64;
+    let mut total_syncs = 0u32;
+    let mut total_items = 0u32;
+    let mut total_input_tokens = 0u64;
+    let mut total_output_tokens = 0u64;
+
+    for entry in &entries {
+        if entry.timestamp.format("%Y-%m").to_string() == month_str {
+            total_cost_usd += entry.effective_cost_usd();
+            total_syncs += 1;
+            total_items += entry.items_fetched;
+            total_input_tokens += entry.input_tokens;
+            total_output_tokens += entry.output_tokens;
+        }
+    }
+
+    Ok(RpcOutcome::new(
+        MonthlyCostSummaryResponse {
+            month: month_str,
+            total_cost_usd,
+            total_syncs,
+            total_items,
+            total_input_tokens,
+            total_output_tokens,
+        },
+        vec![],
+    ))
+}
diff --git a/src/openhuman/memory_sources/schemas.rs b/src/openhuman/memory_sources/schemas.rs
index 341c10be8..7184e2c45 100644
--- a/src/openhuman/memory_sources/schemas.rs
+++ b/src/openhuman/memory_sources/schemas.rs
@@ -79,6 +79,24 @@ fn kind_specific_fields() -> Vec<FieldSchema> {
             comment: "CSS selector for web_page sources.",
             required: false,
         },
+        FieldSchema {
+            name: "max_tokens_per_sync",
+            ty: TypeSchema::Option(Box::new(TypeSchema::U64)),
+            comment: "Max tokens per sync run.",
+            required: false,
+        },
+        FieldSchema {
+            name: "max_cost_per_sync_usd",
+            ty: TypeSchema::Option(Box::new(TypeSchema::F64)),
+            comment: "Max cost per sync run in USD.",
+            required: false,
+        },
+        FieldSchema {
+            name: "sync_depth_days",
+            ty: TypeSchema::Option(Box::new(TypeSchema::U64)),
+            comment: "Only sync items from the last N days.",
+            required: false,
+        },
     ]
 }
 
@@ -94,6 +112,8 @@ pub fn all_controller_schemas() -> Vec<ControllerSchema> {
         schemas("sync"),
         schemas("status_list"),
         schemas("sync_audit_log"),
+        schemas("estimate_sync_cost"),
+        schemas("monthly_cost_summary"),
     ]
 }
 
@@ -139,6 +159,14 @@ pub fn all_registered_controllers() -> Vec<RegisteredController> {
             schema: schemas("sync_audit_log"),
             handler: handle_sync_audit_log,
         },
+        RegisteredController {
+            schema: schemas("estimate_sync_cost"),
+            handler: handle_estimate_sync_cost,
+        },
+        RegisteredController {
+            schema: schemas("monthly_cost_summary"),
+            handler: handle_monthly_cost_summary,
+        },
     ]
 }
 
@@ -364,6 +392,101 @@ pub fn schemas(function: &str) -> ControllerSchema {
                 required: true,
             }],
         },
+        "estimate_sync_cost" => ControllerSchema {
+            namespace: NAMESPACE,
+            function: "estimate_sync_cost",
+            description:
+                "Estimate the cost of syncing a source before starting. Returns item count, \
+                 estimated tokens, and estimated cost in USD.",
+            inputs: vec![FieldSchema {
+                name: "source_id",
+                ty: TypeSchema::String,
+                comment: "Source id to estimate.",
+                required: true,
+            }],
+            outputs: vec![
+                FieldSchema {
+                    name: "source_id",
+                    ty: TypeSchema::String,
+                    comment: "Echo of source id.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "item_count",
+                    ty: TypeSchema::U64,
+                    comment: "Number of items to sync.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "estimated_tokens",
+                    ty: TypeSchema::U64,
+                    comment: "Estimated input tokens.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "estimated_cost_usd",
+                    ty: TypeSchema::F64,
+                    comment: "Estimated cost in USD.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "budget_max_cost_usd",
+                    ty: TypeSchema::Option(Box::new(TypeSchema::F64)),
+                    comment: "Configured cost cap if set.",
+                    required: false,
+                },
+                FieldSchema {
+                    name: "budget_max_tokens",
+                    ty: TypeSchema::Option(Box::new(TypeSchema::U64)),
+                    comment: "Configured token cap if set.",
+                    required: false,
+                },
+            ],
+        },
+        "monthly_cost_summary" => ControllerSchema {
+            namespace: NAMESPACE,
+            function: "monthly_cost_summary",
+            description: "Aggregate sync costs for the current calendar month.",
+            inputs: vec![],
+            outputs: vec![
+                FieldSchema {
+                    name: "month",
+                    ty: TypeSchema::String,
+                    comment: "YYYY-MM.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "total_cost_usd",
+                    ty: TypeSchema::F64,
+                    comment: "Total spend in USD.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "total_syncs",
+                    ty: TypeSchema::U64,
+                    comment: "Number of sync runs.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "total_items",
+                    ty: TypeSchema::U64,
+                    comment: "Total items fetched.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "total_input_tokens",
+                    ty: TypeSchema::U64,
+                    comment: "Total input tokens.",
+                    required: true,
+                },
+                FieldSchema {
+                    name: "total_output_tokens",
+                    ty: TypeSchema::U64,
+                    comment: "Total output tokens.",
+                    required: true,
+                },
+            ],
+        },
         other => panic!("unknown memory_sources schema function: {other}"),
     }
 }
@@ -429,6 +552,17 @@ fn handle_sync_audit_log(_params: Map<String, Value>) -> ControllerFuture {
     Box::pin(async move { to_json(rpc::sync_audit_log_rpc().await?) })
 }
 
+fn handle_estimate_sync_cost(params: Map<String, Value>) -> ControllerFuture {
+    Box::pin(async move {
+        let req = parse_value::<rpc::EstimateSyncCostRequest>(Value::Object(params))?;
+        to_json(rpc::estimate_sync_cost_rpc(req).await?)
+    })
+}
+
+fn handle_monthly_cost_summary(_params: Map<String, Value>) -> ControllerFuture {
+    Box::pin(async move { to_json(rpc::monthly_cost_summary_rpc().await?) })
+}
+
 fn parse_value<T: DeserializeOwned>(v: Value) -> Result<T, String> {
     serde_json::from_value(v).map_err(|e| format!("invalid params: {e}"))
 }
diff --git a/src/openhuman/memory_sources/status.rs b/src/openhuman/memory_sources/status.rs
index 1f1f8cda5..f9f538247 100644
--- a/src/openhuman/memory_sources/status.rs
+++ b/src/openhuman/memory_sources/status.rs
@@ -179,6 +179,9 @@ mod tests {
             max_issues: None,
             max_prs: None,
             selector: None,
+            max_tokens_per_sync: None,
+            max_cost_per_sync_usd: None,
+            sync_depth_days: None,
         };
         assert_eq!(source_id_prefix(&entry), "mem_src:src_abc:%");
 
diff --git a/src/openhuman/memory_sources/types.rs b/src/openhuman/memory_sources/types.rs
index b34056c15..f0bce598a 100644
--- a/src/openhuman/memory_sources/types.rs
+++ b/src/openhuman/memory_sources/types.rs
@@ -88,6 +88,17 @@ pub struct MemorySourceEntry {
     // ── WebPage ──
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub selector: Option<String>,
+
+    // ── Sync Budget (all source kinds) ──
+    /// Maximum tokens to consume per sync run. Sync stops once this budget is hit.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub max_tokens_per_sync: Option<u64>,
+    /// Maximum cost in USD per sync run. Refuses LLM calls once reached.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub max_cost_per_sync_usd: Option<f64>,
+    /// Sync depth in days — only fetch items from the last N days.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub sync_depth_days: Option<u32>,
 }
 
 impl MemorySourceEntry {
@@ -262,6 +273,9 @@ mod tests {
             since_days: None,
             max_items: None,
             selector: None,
+            max_tokens_per_sync: None,
+            max_cost_per_sync_usd: None,
+            sync_depth_days: None,
         }
     }
 }
diff --git a/tests/app_credentials_threads_memory_sources_raw_coverage_e2e.rs b/tests/app_credentials_threads_memory_sources_raw_coverage_e2e.rs
index f72c1aa96..9021999e1 100644
--- a/tests/app_credentials_threads_memory_sources_raw_coverage_e2e.rs
+++ b/tests/app_credentials_threads_memory_sources_raw_coverage_e2e.rs
@@ -190,6 +190,9 @@ fn source_entry(id: &str, kind: SourceKind, label: &str) -> MemorySourceEntry {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     }
 }
 
diff --git a/tests/config_auth_app_state_connectivity_e2e.rs b/tests/config_auth_app_state_connectivity_e2e.rs
index 93ea2c1ea..0198d2159 100644
--- a/tests/config_auth_app_state_connectivity_e2e.rs
+++ b/tests/config_auth_app_state_connectivity_e2e.rs
@@ -2783,6 +2783,7 @@ async fn worker_a_controller_schemas_are_fully_exposed() {
             vec![
                 "openhuman.config_agent_server_status",
                 "openhuman.config_get",
+                "openhuman.config_get_activity_level_settings",
                 "openhuman.config_get_agent_settings",
                 "openhuman.config_get_analytics_settings",
                 "openhuman.config_get_autonomy_settings",
@@ -2800,6 +2801,7 @@ async fn worker_a_controller_schemas_are_fully_exposed() {
                 "openhuman.config_resolve_api_url",
                 "openhuman.config_set_browser_allow_all",
                 "openhuman.config_set_onboarding_completed",
+                "openhuman.config_update_activity_level_settings",
                 "openhuman.config_update_agent_settings",
                 "openhuman.config_update_analytics_settings",
                 "openhuman.config_update_autonomy_settings",
@@ -2846,6 +2848,23 @@ async fn worker_a_controller_schemas_are_fully_exposed() {
             ],
         ),
         ("connectivity", vec!["openhuman.connectivity_diag"]),
+        (
+            "memory_sources",
+            vec![
+                "openhuman.memory_sources_add",
+                "openhuman.memory_sources_estimate_sync_cost",
+                "openhuman.memory_sources_get",
+                "openhuman.memory_sources_list",
+                "openhuman.memory_sources_list_items",
+                "openhuman.memory_sources_monthly_cost_summary",
+                "openhuman.memory_sources_read_item",
+                "openhuman.memory_sources_remove",
+                "openhuman.memory_sources_status_list",
+                "openhuman.memory_sources_sync",
+                "openhuman.memory_sources_sync_audit_log",
+                "openhuman.memory_sources_update",
+            ],
+        ),
     ] {
         assert_eq!(
             schema_method_names(&schema, namespace),
diff --git a/tests/memory_raw_coverage_e2e.rs b/tests/memory_raw_coverage_e2e.rs
index b810775f8..146daa5be 100644
--- a/tests/memory_raw_coverage_e2e.rs
+++ b/tests/memory_raw_coverage_e2e.rs
@@ -71,6 +71,9 @@ fn source_entry(kind: SourceKind, id: &str) -> MemorySourceEntry {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     }
 }
 
diff --git a/tests/memory_sources_closure_round23_raw_coverage_e2e.rs b/tests/memory_sources_closure_round23_raw_coverage_e2e.rs
index 19c8e50ff..0fa56baa5 100644
--- a/tests/memory_sources_closure_round23_raw_coverage_e2e.rs
+++ b/tests/memory_sources_closure_round23_raw_coverage_e2e.rs
@@ -135,6 +135,9 @@ fn source_entry(id: &str, kind: SourceKind) -> MemorySourceEntry {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     }
 }
 
diff --git a/tests/memory_sources_readers_round21_raw_coverage_e2e.rs b/tests/memory_sources_readers_round21_raw_coverage_e2e.rs
index 054576273..48eb47027 100644
--- a/tests/memory_sources_readers_round21_raw_coverage_e2e.rs
+++ b/tests/memory_sources_readers_round21_raw_coverage_e2e.rs
@@ -74,6 +74,9 @@ fn source_entry(id: &str, kind: SourceKind) -> MemorySourceEntry {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     }
 }
 
diff --git a/tests/memory_sync_sources_raw_coverage_e2e.rs b/tests/memory_sync_sources_raw_coverage_e2e.rs
index 7b803035f..5a336ef9d 100644
--- a/tests/memory_sync_sources_raw_coverage_e2e.rs
+++ b/tests/memory_sync_sources_raw_coverage_e2e.rs
@@ -118,6 +118,9 @@ fn source(kind: SourceKind, id: &str) -> MemorySourceEntry {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     }
 }
 
diff --git a/tests/memory_threads_raw_coverage_e2e.rs b/tests/memory_threads_raw_coverage_e2e.rs
index d22c7da6a..40dcc654b 100644
--- a/tests/memory_threads_raw_coverage_e2e.rs
+++ b/tests/memory_threads_raw_coverage_e2e.rs
@@ -229,6 +229,9 @@ fn source(kind: SourceKind, id: &str) -> MemorySourceEntry {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     }
 }
 
@@ -3818,6 +3821,9 @@ async fn memory_sources_registry_rpc_and_schema_handlers_cover_crud_edges() {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     })
     .await
     .unwrap_err();
@@ -3841,6 +3847,9 @@ async fn memory_sources_registry_rpc_and_schema_handlers_cover_crud_edges() {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     })
     .await
     .expect("add folder")
@@ -3865,6 +3874,9 @@ async fn memory_sources_registry_rpc_and_schema_handlers_cover_crud_edges() {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     })
     .await
     .is_ok());
diff --git a/tests/near90_closure_raw_coverage_e2e.rs b/tests/near90_closure_raw_coverage_e2e.rs
index 02e3748b1..aab76370e 100644
--- a/tests/near90_closure_raw_coverage_e2e.rs
+++ b/tests/near90_closure_raw_coverage_e2e.rs
@@ -197,6 +197,9 @@ fn source_entry(id: &str, kind: SourceKind) -> MemorySourceEntry {
         max_issues: None,
         max_prs: None,
         selector: None,
+        max_tokens_per_sync: None,
+        max_cost_per_sync_usd: None,
+        sync_depth_days: None,
     }
 }