Upgrades langchain package to latest versions.

.codex/review-prompt.md

@@ -61,7 +61,6 @@ Every comment must be traceable to changed behavior in this PR and anchored to a
 
 #### Security
 
-
 - Injection risks (SQL, command, XSS) when handling user input.
 - Hardcoded secrets — API keys, passwords, tokens in code.
 - Missing input validation at system boundaries (user input, external APIs). Not for internal function calls.

.github/workflows/check-package-lock.yml

@@ -12,16 +12,16 @@ on:
     branches:
       - main
     paths:
-      - 'package.json'
-      - 'package-lock.json'
-      - '**/package.json'
+      - "package.json"
+      - "package-lock.json"
+      - "**/package.json"
   pull_request:
     branches:
       - "**"
     paths:
-      - 'package.json'
-      - 'package-lock.json'
-      - '**/package.json'
+      - "package.json"
+      - "package-lock.json"
+      - "**/package.json"
 
 jobs:
   verify-package-lock:
@@ -55,7 +55,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '22'
+          node-version: "22"
 
       - name: Validate package-lock.json is valid and in sync
         run: npm ci --dry-run --ignore-scripts

.github/workflows/validate-plugin-tests.yml

@@ -132,4 +132,4 @@ jobs:
             echo "✅ Core Functionality tests found"
             echo "✅ Error Handling tests found"
             echo "✅ All tests passing"
-          fi
+          fi

AGENTS.md

@@ -48,13 +48,16 @@ Before you consider a task "done", you must:
 # Task: [<task number (last + 1)>] <feature>
 
 ## Goal
+
 - <short goal>
 
 ## Subtasks
+
 - [ ] <subtask 1>
 - [ ] <subtask 2>
 
 ## Notes
+
 - <risks, decisions, links>
 ```
 

apps/agent/package.json

@@ -26,8 +26,7 @@
     "test:ragas": "NODE_OPTIONS='--import tsx' tsx tests/ragas/evaluate.ts",
     "test:ragas:results": "NODE_OPTIONS='--import tsx' tsx tests/ragas/show-results.ts",
     "test:ragas:dashboard": "NODE_OPTIONS='--import tsx' tsx tests/ragas/dashboard.ts",
-    "ragas": "chmod +x tests/ragas/run-ragas.sh && tests/ragas/run-ragas.sh",
-    "postinstall": "node fix-uuid.js"
+    "ragas": "chmod +x tests/ragas/run-ragas.sh && tests/ragas/run-ragas.sh"
   },
   "dependencies": {
     "@dkg/expo-forcegraph": "^0.0.0",
@@ -39,13 +38,13 @@
     "@expo-google-fonts/manrope": "^0.4.1",
     "@expo-google-fonts/space-grotesk": "^0.4.0",
     "@expo/vector-icons": "^14.1.0",
-    "@langchain/anthropic": "^0.3.28",
-    "@langchain/core": "^0.3.66",
-    "@langchain/google-genai": "^0.2.18",
-    "@langchain/groq": "^0.2.4",
-    "@langchain/mistralai": "^0.2.1",
-    "@langchain/openai": "^0.6.3",
-    "@langchain/xai": "^0.1.0",
+    "@langchain/anthropic": "^1.3.22",
+    "@langchain/core": "^1.1.30",
+    "@langchain/google-genai": "^2.1.24",
+    "@langchain/groq": "^1.1.4",
+    "@langchain/mistralai": "^1.0.7",
+    "@langchain/openai": "^1.2.12",
+    "@langchain/xai": "^1.3.8",
     "@modelcontextprotocol/sdk": "^1.16.0",
     "@node-rs/argon2": "^2.0.2",
     "@react-native-async-storage/async-storage": "2.1.2",

apps/agent/src/app/(protected)/chat.tsx

@@ -1,8 +1,8 @@
-import { useCallback, useEffect, useRef, useState } from "react";
-import { View, Platform, KeyboardAvoidingView, ScrollView } from "react-native";
-import { Image } from "expo-image";
 import * as Clipboard from "expo-clipboard";
+import { Image } from "expo-image";
 import { fetch } from "expo/fetch";
+import { useCallback, useEffect, useRef, useState } from "react";
+import { KeyboardAvoidingView, Platform, ScrollView, View } from "react-native";
 import { useSafeAreaInsets } from "react-native-safe-area-context";
 //import AsyncStorage from "@react-native-async-storage/async-storage";
 import {
@@ -11,17 +11,18 @@ import {
 } from "@dkg/plugin-dkg-essentials/utils";
 
 import { useMcpClient } from "@/client";
-import useMcpToolsSession from "@/hooks/useMcpToolsSession";
-import useColors from "@/hooks/useColors";
-import usePlatform from "@/hooks/usePlatform";
-import Page from "@/components/layout/Page";
-import Container from "@/components/layout/Container";
-import Header from "@/components/layout/Header";
+import { useAlerts } from "@/components/Alerts";
 import Chat from "@/components/Chat";
 import { SourceKAResolver } from "@/components/Chat/Message/SourceKAs/CollapsibleItem";
+import Container from "@/components/layout/Container";
+import Header from "@/components/layout/Header";
+import Page from "@/components/layout/Page";
 import Markdown from "@/components/Markdown";
-import { useAlerts } from "@/components/Alerts";
+import useColors from "@/hooks/useColors";
+import useMcpToolsSession from "@/hooks/useMcpToolsSession";
+import usePlatform from "@/hooks/usePlatform";
 
+import useSettings from "@/hooks/useSettings";
 import {
   type ChatMessage,
   type ToolCall,
@@ -30,23 +31,22 @@ import {
   makeStreamingCompletionRequest,
   toContents,
 } from "@/shared/chat";
+import { toError } from "@/shared/errors";
 import {
   FileDefinition,
   parseFilesFromContent,
   serializeFiles,
   uploadFiles,
 } from "@/shared/files";
-import { toError } from "@/shared/errors";
-import useSettings from "@/hooks/useSettings";
+import {
+  isThinkingVisible,
+  shouldStopGenerating,
+} from "@/shared/thinkingIndicator";
 import {
   type ToolExecutionMode,
   toToolExecutionMode,
   toToolExecutionSettings,
 } from "@/shared/toolExecutionMode";
-import {
-  isThinkingVisible,
-  shouldStopGenerating,
-} from "@/shared/thinkingIndicator";
 
 function normalizeStreamingMarkdown(content: string): string {
   const fencePattern = /^(`{3,})[^`]*$/gm;
@@ -118,7 +118,10 @@ export default function ChatPage() {
 
       const s = toToolExecutionSettings(mode);
       await settings.set("autoApproveMcpTools", s.autoApproveMcpTools);
-      await settings.set("showMcpToolExecutionPanels", s.showMcpToolExecutionPanels);
+      await settings.set(
+        "showMcpToolExecutionPanels",
+        s.showMcpToolExecutionPanels,
+      );
       await settings.reload();
     },
     [settings, tools],
@@ -180,8 +183,7 @@ export default function ChatPage() {
         continue;
       }
 
-      const existingId =
-        typeof tc.id === "string" ? tc.id.trim() : "";
+      const existingId = typeof tc.id === "string" ? tc.id.trim() : "";
       normalizedToolCalls.push({
         ...tc,
         id: existingId || `local-tool-call-${localToolCallIdCounter.current++}`,
@@ -637,7 +639,7 @@ export default function ChatPage() {
                 const text: string[] = [];
 
                 for (const c of toContents(m.content)) {
-                  if (c.type === "image_url") {
+                  if (c.type === "image_url" && typeof c.image_url === "string") {
                     images.push({ uri: c.image_url });
                     continue;
                   }
@@ -658,7 +660,7 @@ export default function ChatPage() {
                       continue;
                     }
 
-                    text.push(c.text);
+                    text.push(c.text as string);
                   }
                 }
 
@@ -667,7 +669,8 @@ export default function ChatPage() {
                 const allToolCallsHidden =
                   hasToolCalls &&
                   m.tool_calls!.every((tc) => {
-                    const isAutoApproved = autoApproveTools || tools.isAllowedForSession(tc.name);
+                    const isAutoApproved =
+                      autoApproveTools || tools.isAllowedForSession(tc.name);
                     return isAutoApproved && !showToolExecutionPanels;
                   });
 
@@ -792,7 +795,10 @@ export default function ChatPage() {
                         lastUserMessageYRef.current = y;
                         if (scrollPendingRef.current) {
                           scrollPendingRef.current = false;
-                          scrollTargetRef.current = Math.max(0, y - SCROLL_TOP_GAP);
+                          scrollTargetRef.current = Math.max(
+                            0,
+                            y - SCROLL_TOP_GAP,
+                          );
                           setContentMinHeight(y + messagesViewHeight);
                         }
                       }}
@@ -804,11 +810,15 @@ export default function ChatPage() {
 
                 return <View key={i}>{messageContent}</View>;
               })}
-              {isThinkingVisible(isGenerating, streamingContent) && <Chat.Thinking />}
+              {isThinkingVisible(isGenerating, streamingContent) && (
+                <Chat.Thinking />
+              )}
               {streamingContent !== null && (
                 <Chat.Message icon="assistant">
                   <Markdown>
-                    {normalizeStreamingMarkdown(stripThinkTags(streamingContent))}
+                    {normalizeStreamingMarkdown(
+                      stripThinkTags(streamingContent),
+                    )}
                   </Markdown>
                 </Chat.Message>
               )}