diff --git a/frontend/src/components/SkeletonLoader.tsx b/frontend/src/components/SkeletonLoader.tsx
index 26a1fe2b..eea39673 100644
--- a/frontend/src/components/SkeletonLoader.tsx
+++ b/frontend/src/components/SkeletonLoader.tsx
@@ -1,4 +1,5 @@
 import { useState, useEffect } from 'react';
+import { useTranslation } from 'react-i18next';
 
 interface SkeletonLoaderProps {
   count?: number;
@@ -22,6 +23,7 @@ const SkeletonLoader: React.FC<SkeletonLoaderProps> = ({
   count = 1,
   component = 'default',
 }) => {
+  const { t } = useTranslation();
   const [skeletonCount, setSkeletonCount] = useState(count);
 
   useEffect(() => {
@@ -353,7 +355,17 @@ const SkeletonLoader: React.FC<SkeletonLoaderProps> = ({
 
   const render = componentMap[component] || componentMap.default;
 
-  return <>{render()}</>;
+  // The Spinner this replaces carried role="status"; without it a screen
+  // reader gets no signal at all while a section loads. Absolutely
+  // positioned by `sr-only`, so it never becomes a flex/grid item.
+  return (
+    <>
+      <span className="sr-only" role="status">
+        {t('loading')}
+      </span>
+      {render()}
+    </>
+  );
 };
 
 export default SkeletonLoader;
diff --git a/frontend/src/locale/de.json b/frontend/src/locale/de.json
index b91db717..061b5480 100644
--- a/frontend/src/locale/de.json
+++ b/frontend/src/locale/de.json
@@ -7,6 +7,7 @@
   "tagline": "DocsGPT verwendet GenAI, bitte überprüfe kritische Informationen anhand der Quellen.",
   "sourceDocs": "Quelle",
   "none": "Keine",
+  "loading": "Wird geladen...",
   "cancel": "Abbrechen",
   "help": "Hilfe",
   "emailUs": "E-Mail senden",
@@ -197,7 +198,8 @@
         "queryPlaceholder": "Frage etwas, das diese Quelle beantworten sollte...",
         "run": "Ausführen",
         "notSavedHint": "Diese Einstellungen gelten nur für diesen Test – sie werden nicht in der Quelle gespeichert. Ändere sie in den Quelleneinstellungen, um sie dauerhaft zu übernehmen.",
-        "resultSummary": "{{count}} Chunks abgerufen · {{retriever}}",
+        "resultSummary_one": "{{count}} Chunk abgerufen · {{retriever}}",
+        "resultSummary_other": "{{count}} Chunks abgerufen · {{retriever}}",
         "latency": "{{ms}} ms",
         "empty": "Keine Chunks für diese Anfrage abgerufen.",
         "emptyWithThreshold": "Keine Chunks haben den Score-Schwellenwert ({{threshold}}) erreicht. Senke ihn, um knappe Treffer zu sehen.",
@@ -1137,7 +1139,8 @@
       "parseError": "Spezifikation konnte nicht geparst werden. Bitte Dateiformat prüfen.",
       "version": "Version",
       "baseUrl": "Basis-URL",
-      "actionsFound": "{{count}} Aktionen gefunden",
+      "actionsFound_one": "{{count}} Aktion gefunden",
+      "actionsFound_other": "{{count}} Aktionen gefunden",
       "selectAll": "Alle auswählen",
       "deselectAll": "Alle abwählen",
       "cancel": "Abbrechen",
@@ -1211,7 +1214,8 @@
       "title": "Quellen",
       "text": "Wähle deine Quellen",
       "link": "Quellen-Link",
-      "view_more": "{{count}} weitere Quellen",
+      "view_more_one": "{{count}} weitere Quelle",
+      "view_more_other": "{{count}} weitere Quellen",
       "noSourcesAvailable": "Keine Quellen verfügbar",
       "selectedCount": "{{count}} Quellen ausgewählt",
       "groupOwn": "Deine Quellen",
@@ -1466,7 +1470,8 @@
         "confidence": "Confidence threshold",
         "confidenceHint": "The judge must both flag the content and be at least this confident (default: 0.7)",
         "activeCount": "{{count}} active",
-        "needsSetup": "{{count}} need setup",
+        "needsSetup_one": "{{count}} benötigt Einrichtung",
+        "needsSetup_other": "{{count}} benötigen Einrichtung",
         "setupRequired": "Fill in this check's settings before saving.",
         "pickAtLeastOne": "Pick at least one — the check cannot run with none selected.",
         "remove": "Remove",
diff --git a/frontend/src/locale/en.json b/frontend/src/locale/en.json
index 52d28862..aa8aa48c 100644
--- a/frontend/src/locale/en.json
+++ b/frontend/src/locale/en.json
@@ -7,6 +7,7 @@
   "tagline": "DocsGPT uses GenAI, please review critical information using sources.",
   "sourceDocs": "Source",
   "none": "None",
+  "loading": "Loading...",
   "cancel": "Cancel",
   "errorBoundary": {
     "message": "Something went wrong displaying this content.",
diff --git a/frontend/src/locale/es.json b/frontend/src/locale/es.json
index f22788cb..1c27a945 100644
--- a/frontend/src/locale/es.json
+++ b/frontend/src/locale/es.json
@@ -7,6 +7,7 @@
   "tagline": "DocsGPT utiliza GenAI, por favor revisa información crítica utilizando fuentes.",
   "sourceDocs": "Fuente",
   "none": "Ninguno",
+  "loading": "Cargando...",
   "cancel": "Cancelar",
   "help": "Asistencia",
   "emailUs": "Envíanos un correo",
@@ -197,7 +198,8 @@
         "queryPlaceholder": "Pregunta algo que esta fuente debería responder...",
         "run": "Ejecutar",
         "notSavedHint": "Estos ajustes solo se usan para esta prueba — no se guardan en la fuente. Cámbialos en Configuración de la fuente para hacerlos permanentes.",
-        "resultSummary": "{{count}} fragmentos recuperados · {{retriever}}",
+        "resultSummary_one": "{{count}} fragmento recuperado · {{retriever}}",
+        "resultSummary_other": "{{count}} fragmentos recuperados · {{retriever}}",
         "latency": "{{ms}} ms",
         "empty": "No se recuperaron fragmentos para esta consulta.",
         "emptyWithThreshold": "Ningún fragmento alcanzó el umbral de puntuación ({{threshold}}). Bájalo para ver los que estuvieron cerca.",
@@ -1137,7 +1139,8 @@
       "parseError": "No se pudo analizar la especificación. Verifica el formato del archivo.",
       "version": "Versión",
       "baseUrl": "URL base",
-      "actionsFound": "{{count}} acciones encontradas",
+      "actionsFound_one": "{{count}} acción encontrada",
+      "actionsFound_other": "{{count}} acciones encontradas",
       "selectAll": "Seleccionar todo",
       "deselectAll": "Deseleccionar todo",
       "cancel": "Cancelar",
@@ -1211,7 +1214,8 @@
       "title": "Fuentes",
       "text": "Elegir tus fuentes",
       "link": "Enlace fuente",
-      "view_more": "Ver {{count}} más fuentes",
+      "view_more_one": "Ver {{count}} fuente más",
+      "view_more_other": "Ver {{count}} fuentes más",
       "noSourcesAvailable": "No hay fuentes disponibles",
       "selectedCount": "{{count}} fuentes seleccionadas",
       "groupOwn": "Tus fuentes",
@@ -1466,7 +1470,8 @@
         "confidence": "Confidence threshold",
         "confidenceHint": "The judge must both flag the content and be at least this confident (default: 0.7)",
         "activeCount": "{{count}} active",
-        "needsSetup": "{{count}} need setup",
+        "needsSetup_one": "{{count}} necesita configuración",
+        "needsSetup_other": "{{count}} necesitan configuración",
         "setupRequired": "Fill in this check's settings before saving.",
         "pickAtLeastOne": "Pick at least one — the check cannot run with none selected.",
         "remove": "Remove",
diff --git a/frontend/src/locale/jp.json b/frontend/src/locale/jp.json
index de8737f7..537a6373 100644
--- a/frontend/src/locale/jp.json
+++ b/frontend/src/locale/jp.json
@@ -7,6 +7,7 @@
   "tagline": "DocsGPTはGenAIを使用しています。重要な情報はソースで確認してください。",
   "sourceDocs": "ソース",
   "none": "なし",
+  "loading": "読み込み中...",
   "cancel": "キャンセル",
   "help": "ヘルプ",
   "emailUs": "メールを送る",
diff --git a/frontend/src/locale/ru.json b/frontend/src/locale/ru.json
index 92ba9748..243954cb 100644
--- a/frontend/src/locale/ru.json
+++ b/frontend/src/locale/ru.json
@@ -7,6 +7,7 @@
   "tagline": "DocsGPT использует GenAI, пожалуйста, проверьте важную информацию, используя источники.",
   "sourceDocs": "Источник",
   "none": "Нет",
+  "loading": "Загрузка...",
   "cancel": "Отмена",
   "help": "Помощь",
   "emailUs": "Напишите нам",
@@ -207,7 +208,10 @@
         "queryPlaceholder": "Спросите что-нибудь, на что этот источник должен ответить...",
         "run": "Запустить",
         "notSavedHint": "Эти настройки используются только для этого теста — они не сохраняются в источнике. Чтобы сделать их постоянными, измените их в настройках источника.",
-        "resultSummary": "Извлечено фрагментов: {{count}} · {{retriever}}",
+        "resultSummary_one": "Извлечён {{count}} фрагмент · {{retriever}}",
+        "resultSummary_few": "Извлечено {{count}} фрагмента · {{retriever}}",
+        "resultSummary_many": "Извлечено фрагментов: {{count}} · {{retriever}}",
+        "resultSummary_other": "Извлечено фрагментов: {{count}} · {{retriever}}",
         "latency": "{{ms}} мс",
         "empty": "По этому запросу фрагменты не извлечены.",
         "emptyWithThreshold": "Ни один фрагмент не набрал оценку не ниже порога ({{threshold}}). Понизьте порог, чтобы увидеть близкие результаты.",
@@ -1167,7 +1171,10 @@
       "parseError": "Не удалось разобрать спецификацию. Проверьте формат файла.",
       "version": "Версия",
       "baseUrl": "Базовый URL",
-      "actionsFound": "{{count}} действий найдено",
+      "actionsFound_one": "найдено {{count}} действие",
+      "actionsFound_few": "найдено {{count}} действия",
+      "actionsFound_many": "найдено {{count}} действий",
+      "actionsFound_other": "найдено {{count}} действий",
       "selectAll": "Выбрать все",
       "deselectAll": "Снять выделение со всех",
       "cancel": "Отмена",
@@ -1241,7 +1248,10 @@
       "title": "Источники",
       "text": "Выберите ваши источники",
       "link": "Ссылка на источник",
-      "view_more": "ещё {{count}} источников",
+      "view_more_one": "ещё {{count}} источник",
+      "view_more_few": "ещё {{count}} источника",
+      "view_more_many": "ещё {{count}} источников",
+      "view_more_other": "ещё {{count}} источников",
       "noSourcesAvailable": "Нет доступных источников",
       "selectedCount": "Выбрано источников: {{count}}",
       "groupOwn": "Ваши источники",
@@ -1496,7 +1506,10 @@
         "confidence": "Confidence threshold",
         "confidenceHint": "The judge must both flag the content and be at least this confident (default: 0.7)",
         "activeCount": "{{count}} active",
-        "needsSetup": "{{count}} need setup",
+        "needsSetup_one": "{{count}} требует настройки",
+        "needsSetup_few": "{{count}} требуют настройки",
+        "needsSetup_many": "{{count}} требуют настройки",
+        "needsSetup_other": "{{count}} требуют настройки",
         "setupRequired": "Fill in this check's settings before saving.",
         "pickAtLeastOne": "Pick at least one — the check cannot run with none selected.",
         "remove": "Remove",
diff --git a/frontend/src/locale/zh-TW.json b/frontend/src/locale/zh-TW.json
index ceb8e3b3..3e10c564 100644
--- a/frontend/src/locale/zh-TW.json
+++ b/frontend/src/locale/zh-TW.json
@@ -7,6 +7,7 @@
   "tagline": "DocsGPT 使用生成式 AI，請使用原始資料來源審閱重要資訊。",
   "sourceDocs": "原始文件",
   "none": "無",
+  "loading": "載入中...",
   "cancel": "取消",
   "help": "幫助",
   "emailUs": "給我們發電郵",
diff --git a/frontend/src/locale/zh.json b/frontend/src/locale/zh.json
index 6df47b21..201b6c4c 100644
--- a/frontend/src/locale/zh.json
+++ b/frontend/src/locale/zh.json
@@ -7,6 +7,7 @@
   "tagline": "DocsGPT 使用 GenAI, 请使用来源审核关键信息.",
   "sourceDocs": "源",
   "none": "无",
+  "loading": "加载中...",
   "cancel": "取消",
   "help": "帮助",
   "emailUs": "给我们发邮件",
diff --git a/frontend/src/modals/MCPServerModal.tsx b/frontend/src/modals/MCPServerModal.tsx
index 442cd568..48628e5a 100644
--- a/frontend/src/modals/MCPServerModal.tsx
+++ b/frontend/src/modals/MCPServerModal.tsx
@@ -455,7 +455,7 @@ export default function MCPServerModal({
           <div className="flex flex-col gap-4">
             <div className="flex flex-col gap-1.5">
               <Label htmlFor="api_key">
-                {t('settings.tools.mcp.placeholders.apiKey')}
+                {t('settings.tools.mcp.authTypes.apiKey')}
                 <span className="text-red-500">*</span>
               </Label>
               <Input
@@ -492,7 +492,7 @@ export default function MCPServerModal({
         return (
           <div className="flex flex-col gap-1.5">
             <Label htmlFor="bearer_token">
-              {t('settings.tools.mcp.placeholders.bearerToken')}
+              {t('settings.tools.mcp.authTypes.bearer')}
               <span className="text-red-500">*</span>
             </Label>
             <Input
@@ -556,8 +556,7 @@ export default function MCPServerModal({
         return (
           <div className="flex flex-col gap-1.5">
             <Label htmlFor="oauth_scopes">
-              {t('settings.tools.mcp.placeholders.oauthScopes') ||
-                'Scopes (comma separated)'}
+              {t('settings.tools.mcp.placeholders.oauthScopes')}
             </Label>
             <Input
               id="oauth_scopes"