diff --git a/ui/package.json b/ui/package.json
index 1f9675fae9..54fa39c928 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -75,7 +75,7 @@
     "jose": "5.10.0",
     "js-yaml": "4.1.1",
     "jwt-decode": "4.0.0",
-    "langchain": "1.1.5",
+    "langchain": "1.2.3",
     "lucide-react": "0.543.0",
     "marked": "15.0.12",
     "nanoid": "5.1.6",
diff --git a/ui/pnpm-lock.yaml b/ui/pnpm-lock.yaml
index a987fbd88f..7494ec42e5 100644
--- a/ui/pnpm-lock.yaml
+++ b/ui/pnpm-lock.yaml
@@ -41,7 +41,7 @@ importers:
         version: 1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))
       '@langchain/mcp-adapters':
         specifier: 1.0.3
-        version: 1.0.3(@cfworker/json-schema@4.1.1)(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@langchain/langgraph@1.0.4(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11))
+        version: 1.0.3(@cfworker/json-schema@4.1.1)(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@langchain/langgraph@1.0.7(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11))
       '@langchain/openai':
         specifier: 1.1.3
         version: 1.1.3(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))
@@ -172,8 +172,8 @@ importers:
         specifier: 4.0.0
         version: 4.0.0
       langchain:
-        specifier: 1.1.5
-        version: 1.1.5(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))
+        specifier: 1.2.3
+        version: 1.2.3(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))
       lucide-react:
         specifier: 0.543.0
         version: 0.543.0(react@19.2.2)
@@ -1712,8 +1712,8 @@ packages:
     peerDependencies:
       '@langchain/core': ^1.0.1
 
-  '@langchain/langgraph-sdk@1.2.0':
-    resolution: {integrity: sha512-nFfNJWc9P2job2uUoL37nXfz0VW9eLEtidP0edrgeHUW7BczIQzLXC9ucJHHHGLjlK0S522kmai0abAULv3pGA==}
+  '@langchain/langgraph-sdk@1.3.1':
+    resolution: {integrity: sha512-zTi7DZHwqtMEzapvm3I1FL4Q7OZsxtq9tTXy6s2gcCxyIU3sphqRboqytqVN7dNHLdTCLb8nXy49QKurs2MIBg==}
     peerDependencies:
       '@langchain/core': ^1.0.1
       react: ^18 || ^19
@@ -1726,8 +1726,8 @@ packages:
       react-dom:
         optional: true
 
-  '@langchain/langgraph@1.0.4':
-    resolution: {integrity: sha512-EYLyN/uv1ubMBd3RN/y+eAxY0FJWKrnzRw8HuDJdmDcyomgV9btyHK2zDN70sO3QDDuAU9voLNNUZeFBQkBYMQ==}
+  '@langchain/langgraph@1.0.7':
+    resolution: {integrity: sha512-EBGqNOWoRiEoLUaeuiXRpUM8/DE6QcwiirNyd97XhezStebBoTTilWH8CUt6S94JRGl5zwfBBRHfzotDnZS/eA==}
     engines: {node: '>=18'}
     peerDependencies:
       '@langchain/core': ^1.0.1
@@ -6389,18 +6389,18 @@ packages:
     resolution: {integrity: sha512-o+NO+8WrRiQEE4/7nwRJhN1HWpVmJm511pBHUxPLtp0BUISzlBplORYSmTclCnJvQq2tKu/sgl3xVpkc7ZWuQQ==}
     engines: {node: '>=6'}
 
-  langchain@1.1.5:
-    resolution: {integrity: sha512-tmJHdCsi4AQLEWDeTm9QTWgdwYgIaA4kfp14KFw6e1sUPxjsoHqdFqdf1ZJZxhs1h/n+hpIr3NBfGNBQnWxWEQ==}
+  langchain@1.2.3:
+    resolution: {integrity: sha512-3k986xJuqg4az53JxV5LnGlOzIXF1d9Kq6Y9s7XjitvzhpsbFuTDV5/kiF4cx3pkNGyw0mUXC4tLz9RxucO0hw==}
     engines: {node: '>=20'}
     peerDependencies:
-      '@langchain/core': 1.1.4
+      '@langchain/core': 1.1.8
 
   langium@3.3.1:
     resolution: {integrity: sha512-QJv/h939gDpvT+9SiLVlY7tZC3xB2qK57v0J04Sh9wpMb6MP1q8gB21L3WIo8T5P1MSMg3Ep14L7KkDCFG3y4w==}
     engines: {node: '>=16.0.0'}
 
-  langsmith@0.3.87:
-    resolution: {integrity: sha512-XXR1+9INH8YX96FKWc5tie0QixWz6tOqAsAKfcJyPkE0xPep+NDz0IQLR32q4bn10QK3LqD2HN6T3n6z1YLW7Q==}
+  langsmith@0.4.2:
+    resolution: {integrity: sha512-BvBeFgSmR9esl8x5wsiDlALiHKKPybw2wE2Hh6x1tgSZki46H9c9KI9/06LARbPhyyDu/TZU7exfg6fnhdj1Qg==}
     peerDependencies:
       '@opentelemetry/api': '*'
       '@opentelemetry/exporter-trace-otlp-proto': '*'
@@ -6416,8 +6416,8 @@ packages:
       openai:
         optional: true
 
-  langsmith@0.4.2:
-    resolution: {integrity: sha512-BvBeFgSmR9esl8x5wsiDlALiHKKPybw2wE2Hh6x1tgSZki46H9c9KI9/06LARbPhyyDu/TZU7exfg6fnhdj1Qg==}
+  langsmith@0.4.4:
+    resolution: {integrity: sha512-rpLzrklyL7fIP/8wwrSv2tKDwMJTvkhgWeKxDvmbAB2n/p5FzqujEWCpA//u9hnrdmXZc1dCJZ+iqN6KgaEoEA==}
     peerDependencies:
       '@opentelemetry/api': '*'
       '@opentelemetry/exporter-trace-otlp-proto': '*'
@@ -10689,7 +10689,7 @@ snapshots:
       '@langchain/core': 1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))
       uuid: 10.0.0
 
-  '@langchain/langgraph-sdk@1.2.0(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)':
+  '@langchain/langgraph-sdk@1.3.1(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)':
     dependencies:
       p-queue: 6.6.2
       p-retry: 4.6.2
@@ -10699,11 +10699,11 @@ snapshots:
       react: 19.2.2
       react-dom: 19.2.2(react@19.2.2)
 
-  '@langchain/langgraph@1.0.4(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11)':
+  '@langchain/langgraph@1.0.7(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11)':
     dependencies:
       '@langchain/core': 1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))
       '@langchain/langgraph-checkpoint': 1.0.0(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))
-      '@langchain/langgraph-sdk': 1.2.0(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)
+      '@langchain/langgraph-sdk': 1.3.1(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)
       uuid: 10.0.0
       zod: 4.1.11
     optionalDependencies:
@@ -10712,10 +10712,10 @@ snapshots:
       - react
       - react-dom
 
-  '@langchain/mcp-adapters@1.0.3(@cfworker/json-schema@4.1.1)(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@langchain/langgraph@1.0.4(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11))':
+  '@langchain/mcp-adapters@1.0.3(@cfworker/json-schema@4.1.1)(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@langchain/langgraph@1.0.7(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11))':
     dependencies:
       '@langchain/core': 1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))
-      '@langchain/langgraph': 1.0.4(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11)
+      '@langchain/langgraph': 1.0.7(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11)
       '@modelcontextprotocol/sdk': 1.24.3(@cfworker/json-schema@4.1.1)(zod@4.1.11)
       debug: 4.4.3
       zod: 4.1.11
@@ -16336,12 +16336,12 @@ snapshots:
 
   kleur@4.1.5: {}
 
-  langchain@1.1.5(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11)):
+  langchain@1.2.3(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11)):
     dependencies:
       '@langchain/core': 1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))
-      '@langchain/langgraph': 1.0.4(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11)
+      '@langchain/langgraph': 1.0.7(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))(react-dom@19.2.2(react@19.2.2))(react@19.2.2)(zod-to-json-schema@3.25.0(zod@4.1.11))(zod@4.1.11)
       '@langchain/langgraph-checkpoint': 1.0.0(@langchain/core@1.1.8(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)))
-      langsmith: 0.3.87(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))
+      langsmith: 0.4.4(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11))
       uuid: 10.0.0
       zod: 4.1.11
     transitivePeerDependencies:
@@ -16361,7 +16361,7 @@ snapshots:
       vscode-languageserver-textdocument: 1.0.12
       vscode-uri: 3.0.8
 
-  langsmith@0.3.87(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)):
+  langsmith@0.4.2(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)):
     dependencies:
       '@types/uuid': 10.0.0
       chalk: 4.1.2
@@ -16374,7 +16374,7 @@ snapshots:
       '@opentelemetry/sdk-trace-base': 2.2.0(@opentelemetry/api@1.9.0)
       openai: 6.10.0(zod@4.1.11)
 
-  langsmith@0.4.2(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)):
+  langsmith@0.4.4(@opentelemetry/api@1.9.0)(@opentelemetry/sdk-trace-base@2.2.0(@opentelemetry/api@1.9.0))(openai@6.10.0(zod@4.1.11)):
     dependencies:
       '@types/uuid': 10.0.0
       chalk: 4.1.2