diff --git a/apps/ui/html/wizard/step1.html b/apps/ui/html/wizard/step1.html
index b5f1004..7d0a861 100644
--- a/apps/ui/html/wizard/step1.html
+++ b/apps/ui/html/wizard/step1.html
@@ -69,9 +69,11 @@
                 </svg>
               </div>
               <div class="protocol-card-name" data-i18n="wizard.step1.grpc_name">gRPC</div>
-              <div class="protocol-card-tagline" data-i18n="wizard.step1.grpc_tagline">High-performance binary RPC over HTTP/2. Ideal for low-latency internal services.</div>
+              <div class="protocol-card-tagline" data-i18n="wizard.step1.grpc_tagline">High-performance binary RPC over HTTP/2 with unary and bounded streaming flows for low-latency internal services.</div>
               <div class="protocol-card-tags">
                 <span class="protocol-tag" data-i18n="wizard.step1.unary">Unary</span>
+                <span class="protocol-tag" data-i18n="wizard.streaming.mode.window">Window</span>
+                <span class="protocol-tag" data-i18n="wizard.streaming.mode.session">Session</span>
                 <span class="protocol-tag">Protobuf</span>
               </div>
             </div>
diff --git a/apps/ui/js/i18n.js b/apps/ui/js/i18n.js
index 2daa5e0..7a55640 100644
--- a/apps/ui/js/i18n.js
+++ b/apps/ui/js/i18n.js
@@ -538,7 +538,7 @@ var TRANSLATIONS = {
     'wizard.step1.graphql_name': 'GraphQL',
     'wizard.step1.graphql_tagline': 'Query and mutate a GraphQL schema. Supports queries and mutations over one fixed operation.',
     'wizard.step1.grpc_name': 'gRPC',
-    'wizard.step1.grpc_tagline': 'High-performance binary RPC over HTTP/2. Ideal for low-latency internal services.',
+    'wizard.step1.grpc_tagline': 'High-performance binary RPC over HTTP/2 with unary and bounded streaming flows for low-latency internal services.',
     'wizard.step1.websocket_name': 'WebSocket',
     'wizard.step1.websocket_tagline': 'Stateful event streams and push-oriented integrations normalized into bounded MCP streaming tools.',
     'wizard.step1.soap_name': 'SOAP',
@@ -1529,7 +1529,7 @@ var TRANSLATIONS = {
     'wizard.step1.graphql_name': 'GraphQL',
     'wizard.step1.graphql_tagline': 'Запросы и мутации к GraphQL-схеме. Поддерживаются query и mutation для одной фиксированной операции.',
     'wizard.step1.grpc_name': 'gRPC',
-    'wizard.step1.grpc_tagline': 'Высокопроизводительный бинарный RPC поверх HTTP/2. Подходит для низколатентных внутренних сервисов.',
+    'wizard.step1.grpc_tagline': 'Высокопроизводительный бинарный RPC поверх HTTP/2 с unary и bounded streaming flow для низколатентных внутренних сервисов.',
     'wizard.step1.websocket_name': 'WebSocket',
     'wizard.step1.websocket_tagline': 'Состояние соединения, event streams и push-oriented интеграции, нормализованные в bounded MCP streaming tools.',
     'wizard.step1.soap_name': 'SOAP',