diff --git a/ordinis-admin-ui/src/components/lineage/CascadeConfirmDialog.tsx b/ordinis-admin-ui/src/components/lineage/CascadeConfirmDialog.tsx
index a74110b..a7114fa 100644
--- a/ordinis-admin-ui/src/components/lineage/CascadeConfirmDialog.tsx
+++ b/ordinis-admin-ui/src/components/lineage/CascadeConfirmDialog.tsx
@@ -1,6 +1,6 @@
 import { useEffect, useMemo, useState } from 'react'
 import { useTranslation } from 'react-i18next'
-import { Alert, Badge, Button, LoadingBlock, Modal, TextInput } from '@/ui'
+import { Alert, Badge, Button, LoadingBlock, Modal, QueryErrorState, TextInput } from '@/ui'
 import { WarningIcon, XCircleIcon } from '@phosphor-icons/react'
 import { useCascadePreview } from '@/api/queries'
 import { useCascadeCloseRecord } from '@/api/mutations'
@@ -116,9 +116,7 @@ export const CascadeConfirmDialog = ({
         {preview.isLoading && <LoadingBlock size="md" label={t('loading')} />}
 
         {preview.error && (
-          <Alert variant="error" title={t('error.failed')}>
-            {String(preview.error)}
-          </Alert>
+          <QueryErrorState error={preview.error} onRetry={() => preview.refetch()} />
         )}
 
         {plan && (
@@ -261,9 +259,9 @@ export const CascadeConfirmDialog = ({
             )}
 
             {cascadeMut.error && (
-              <Alert variant="error" title={t('error.failed')}>
-                {String(cascadeMut.error)}
-              </Alert>
+              /* Mutation error — no retry button (user triggers via Confirm
+                 again). QueryErrorState classifies 4xx/5xx code/message. */
+              <QueryErrorState error={cascadeMut.error} />
             )}
           </>
         )}
diff --git a/ordinis-admin-ui/src/routes/dictionaries.$name.tsx b/ordinis-admin-ui/src/routes/dictionaries.$name.tsx
index bcc637f..fce8674 100644
--- a/ordinis-admin-ui/src/routes/dictionaries.$name.tsx
+++ b/ordinis-admin-ui/src/routes/dictionaries.$name.tsx
@@ -967,9 +967,10 @@ function DictionaryDetail() {
       {recordsResult.isLoading && <LoadingBlock size="md" label={t('loading')} />}
 
       {recordsResult.error && (
-        <Alert variant="error" title={t('error.failed')}>
-          {String(recordsResult.error)}
-        </Alert>
+        <QueryErrorState
+          error={recordsResult.error}
+          onRetry={() => recordsResult.refetch()}
+        />
       )}
 
       {recordsResult.data && recordsResult.data.length === 0 && (
@@ -1279,9 +1280,10 @@ function DictionaryDetail() {
         )}
 
         {detailQuery.data && edit.kind === 'edit' && rawRecordQuery.error && (
-          <Alert variant="error" title={t('error.failed')}>
-            {String(rawRecordQuery.error)}
-          </Alert>
+          <QueryErrorState
+            error={rawRecordQuery.error}
+            onRetry={() => rawRecordQuery.refetch()}
+          />
         )}
 
         {detailQuery.data && edit.kind === 'edit' && rawRecordQuery.data && (
@@ -2086,7 +2088,8 @@ function highlightJson(json: string): string {
  */
 function EventsTabContent({ dictName }: { dictName: string }) {
   const { t } = useTranslation()
-  const { data, isLoading, error } = useAudit({ dictionaryName: dictName, size: 50 })
+  const auditQ = useAudit({ dictionaryName: dictName, size: 50 })
+  const { data, isLoading, error } = auditQ
   // Filter chips per prototype: все / edit / publish / review / webhook / export.
   // Backend audit actions: CREATE / UPDATE / CLOSE / EXPORT etc. — map to display
   // groups for chip filter.
@@ -2094,11 +2097,7 @@ function EventsTabContent({ dictName }: { dictName: string }) {
 
   if (isLoading) return <LoadingBlock size="md" label={t('loading')} />
   if (error)
-    return (
-      <Alert variant="error" title={t('error.failed')}>
-        {String(error)}
-      </Alert>
-    )
+    return <QueryErrorState error={error} onRetry={() => auditQ.refetch()} />
   const rows = data?.content ?? []
   if (rows.length === 0)
     return (
@@ -2298,7 +2297,8 @@ function EventsTabContent({ dictName }: { dictName: string }) {
 function HistoryTabContent({ detail }: { detail?: import('@/api/client').DictionaryDetail }) {
   const { t } = useTranslation()
   const [diffEntryId, setDiffEntryId] = useState<number | undefined>(undefined)
-  const { data, isLoading, error } = useChangelog(detail?.name)
+  const changelogQ = useChangelog(detail?.name)
+  const { data, isLoading, error } = changelogQ
 
   if (!detail) return null
 
@@ -2306,9 +2306,7 @@ function HistoryTabContent({ detail }: { detail?: import('@/api/client').Diction
     <div className="space-y-3">
       {isLoading && <LoadingBlock size="md" label={t('loading')} />}
       {error && (
-        <Alert variant="error" title={t('error.failed')}>
-          {String(error)}
-        </Alert>
+        <QueryErrorState error={error} onRetry={() => changelogQ.refetch()} />
       )}
       {data && data.entries.length === 0 && (
         <EmptyState
diff --git a/ordinis-admin-ui/src/routes/my-drafts.tsx b/ordinis-admin-ui/src/routes/my-drafts.tsx
index c9c818c..1bb503d 100644
--- a/ordinis-admin-ui/src/routes/my-drafts.tsx
+++ b/ordinis-admin-ui/src/routes/my-drafts.tsx
@@ -2,13 +2,13 @@ import { useState } from 'react'
 import { Link, createFileRoute } from '@tanstack/react-router'
 import { useTranslation } from 'react-i18next'
 import {
-  Alert,
   Badge,
   Button,
   EmptyState,
   LoadingBlock,
   PageHeader,
   Panel,
+  QueryErrorState,
   Table,
   TableBody,
   TableCell,
@@ -92,15 +92,18 @@ function MyDraftsPage() {
         <LoadingBlock size="md" label={t('loading')} />
       )}
 
+      {/* QueryErrorState classifies status code (502 → "Сервис временно
+          недоступен", timeout → "Запрос превысил время ожидания", etc.) и
+          показывает retry button. Раньше тут был <Alert>{String(error)}</Alert>
+          который дампил raw AxiosError юзеру — анти-паттерн UX. */}
       {drafts.error && (
-        <Alert variant="error" title={t('error.failed')}>
-          {String(drafts.error)}
-        </Alert>
+        <QueryErrorState error={drafts.error} onRetry={() => drafts.refetch()} />
       )}
       {schemaDrafts.error && (
-        <Alert variant="error" title={t('error.failed')}>
-          {String(schemaDrafts.error)}
-        </Alert>
+        <QueryErrorState
+          error={schemaDrafts.error}
+          onRetry={() => schemaDrafts.refetch()}
+        />
       )}
 
       {bothEmpty && <EmptyState title={t('myDrafts.empty')} />}
diff --git a/ordinis-admin-ui/src/routes/reviews.tsx b/ordinis-admin-ui/src/routes/reviews.tsx
index cb6f55b..5d9b25d 100644
--- a/ordinis-admin-ui/src/routes/reviews.tsx
+++ b/ordinis-admin-ui/src/routes/reviews.tsx
@@ -715,9 +715,7 @@ function ReviewDrawer({ draftId, onClose }: DrawerProps) {
       <div className="space-y-4">
         {draftQ.isLoading && <LoadingBlock size="md" label={t('loading')} />}
         {draftQ.error && (
-          <Alert variant="error" title={t('error.failed')}>
-            {String(draftQ.error)}
-          </Alert>
+          <QueryErrorState error={draftQ.error} onRetry={() => draftQ.refetch()} />
         )}
 
         {draft && (
diff --git a/ordinis-admin-ui/src/routes/webhooks.index.tsx b/ordinis-admin-ui/src/routes/webhooks.index.tsx
index 225b91d..e28f188 100644
--- a/ordinis-admin-ui/src/routes/webhooks.index.tsx
+++ b/ordinis-admin-ui/src/routes/webhooks.index.tsx
@@ -12,6 +12,7 @@ import {
   MultiSelect,
   PageHeader,
   Panel,
+  QueryErrorState,
   Table,
   TableBody,
   TableCell,
@@ -79,7 +80,8 @@ const EVENT_TYPE_OPTIONS: SelectOption[] = [
 
 function WebhooksPage() {
   const { t } = useTranslation()
-  const { data, isLoading, error } = useWebhookSubscriptions()
+  const subsQ = useWebhookSubscriptions()
+  const { data, isLoading, error } = subsQ
   const [createOpen, setCreateOpen] = useState(false)
   const [revealedSecret, setRevealedSecret] = useState<{
     name: string
@@ -94,11 +96,7 @@ function WebhooksPage() {
 
   if (isLoading) return <LoadingBlock size="md" label={t('loading')} />
   if (error) {
-    return (
-      <Alert variant="error" title={t('error.failed')}>
-        {String(error)}
-      </Alert>
-    )
+    return <QueryErrorState error={error} onRetry={() => subsQ.refetch()} />
   }
 
   return (