[8.19] Update langchain (main) (#240493)

package.json

@@ -79,8 +79,8 @@
     "**/@babel/parser": "7.24.7",
     "**/@hapi/mimos/mime-db": "1.53.0",
     "**/@hello-pangea/dnd": "16.6.0",
-    "**/@langchain/core": "0.3.80",
-    "**/@langchain/google-common": "0.1.8",
+    "**/@langchain/core": "1.1.31",
+    "**/@langchain/google-common": "2.1.24",
     "**/@types/node": "22.19.1",
     "**/@types/prop-types": "15.7.5",
     "**/@typescript-eslint/utils": "8.46.3",
@@ -91,18 +91,18 @@
     "**/fast-xml-parser": "5.5.7",
     "**/hoist-non-react-statics": "3.3.2",
     "**/isomorphic-fetch/node-fetch": "2.7.0",
-    "**/langchain": "0.3.15",
+    "**/langchain": "1.2.30",
     "**/qs": "6.15.0",
     "**/remark-parse/trim": "1.0.1",
     "**/sharp": "0.34.4",
     "**/typescript": "5.9.3",
     "**/util": "0.12.5",
     "**/yauzl": "3.2.1",
     "**/zod": "3.25.76",
-    "@aws-sdk/client-bedrock-agent-runtime": "3.747.0",
-    "@aws-sdk/client-bedrock-runtime": "3.744.0",
-    "@aws-sdk/client-kendra": "3.744.0",
-    "@aws-sdk/credential-provider-node": "3.744.0",
+    "@aws-sdk/client-bedrock-agent-runtime": "3.994.0",
+    "@aws-sdk/client-bedrock-runtime": "3.994.0",
+    "@aws-sdk/client-kendra": "3.994.0",
+    "@aws-sdk/credential-provider-node": "3.972.10",
     "@storybook/react-docgen-typescript-plugin": "1.0.6--canary.9.cd77847.0",
     "@types/react": "18.2.79",
     "@types/react-dom": "18.2.25",
@@ -115,7 +115,7 @@
     "@ai-sdk/langchain": "1.0.102",
     "@appland/sql-parser": "1.5.1",
     "@arizeai/openinference-semantic-conventions": "1.1.0",
-    "@aws-sdk/client-bedrock-runtime": "3.744.0",
+    "@aws-sdk/client-bedrock-runtime": "3.994.0",
     "@babel/runtime": "7.27.6",
     "@dagrejs/dagre": "1.1.8",
     "@dnd-kit/core": "6.3.1",
@@ -1071,14 +1071,15 @@
     "@kbn/xstate-utils": "link:src/platform/packages/shared/kbn-xstate-utils",
     "@kbn/zod": "link:src/platform/packages/shared/kbn-zod",
     "@kbn/zod-helpers": "link:src/platform/packages/shared/kbn-zod-helpers",
-    "@langchain/aws": "0.1.10",
-    "@langchain/community": "0.3.45",
-    "@langchain/core": "0.3.80",
-    "@langchain/google-common": "0.1.8",
-    "@langchain/google-genai": "0.1.8",
-    "@langchain/google-vertexai": "0.1.8",
-    "@langchain/langgraph": "0.2.74",
-    "@langchain/openai": "0.4.4",
+    "@langchain/aws": "1.3.1",
+    "@langchain/classic": "1.0.22",
+    "@langchain/core": "1.1.31",
+    "@langchain/google-common": "2.1.24",
+    "@langchain/google-genai": "2.1.24",
+    "@langchain/google-vertexai": "2.1.24",
+    "@langchain/langgraph": "1.2.0",
+    "@langchain/langgraph-checkpoint": "1.0.0",
+    "@langchain/openai": "1.2.12",
     "@launchdarkly/node-server-sdk": "9.10.6",
     "@launchdarkly/openfeature-node-server": "1.1.0",
     "@loaders.gl/core": "3.4.7",
@@ -1108,9 +1109,9 @@
     "@opentelemetry/semantic-conventions": "1.39.0",
     "@reduxjs/toolkit": "1.9.7",
     "@slack/webhook": "7.0.1",
-    "@smithy/eventstream-codec": "4.0.1",
-    "@smithy/eventstream-serde-node": "4.0.1",
-    "@smithy/middleware-stack": "4.2.0",
+    "@smithy/eventstream-codec": "4.2.8",
+    "@smithy/eventstream-serde-node": "4.1.1",
+    "@smithy/middleware-stack": "4.2.8",
     "@smithy/node-http-handler": "4.3.0",
     "@smithy/types": "4.12.0",
     "@smithy/util-utf8": "4.2.0",
@@ -1224,8 +1225,8 @@
     "jsonwebtoken": "9.0.2",
     "jsts": "1.6.2",
     "kea": "2.6.0",
-    "langchain": "0.3.37",
-    "langsmith": "0.3.87",
+    "langchain": "1.2.30",
+    "langsmith": "0.5.7",
     "launchdarkly-js-client-sdk": "3.9.0",
     "load-json-file": "6.2.0",
     "lodash": "4.17.23",

packages/kbn-find-used-node-modules/src/find_used_node_modules.ts

@@ -83,7 +83,7 @@ export async function findUsedNodeModules(options: Options) {
   let outputs = 0;
   const promise = Rx.lastValueFrom(
     path$.pipe(
-      Rx.filter((path) => Path.extname(path) === '.js'),
+      Rx.filter((path) => ['.js', '.cjs'].includes(Path.extname(path))),
       Rx.distinct(),
       Rx.tap(() => {
         inputs += 1;

renovate.json

@@ -3969,7 +3969,7 @@
       "matchDepNames": [
         "langchain",
         "@langchain/aws",
-        "@langchain/community",
+        "@langchain/classic",
         "@langchain/core",
         "@langchain/google-common",
         "@langchain/google-genai",

src/dev/build/tasks/clean_tasks.ts

@@ -163,6 +163,9 @@ export const CleanExtraFilesFromModules: Task = {
           '**/bower.json',
           '**/yarn.lock',
 
+          // nested package manager artifacts (e.g. pnpm virtual store leaked into published packages)
+          '**/.pnpm',
+
           // misc
           '**/.*ignore',
           '**/*.log',

src/platform/packages/private/kbn-import-resolver/src/import_resolver.ts

@@ -147,6 +147,12 @@ export class ImportResolver {
       return Path.resolve(REPO_ROOT, `node_modules/@modelcontextprotocol/sdk/dist/esm/${relPath}`);
     }
 
+    // We need this "hack" because our current import-resolver doesn't support "exports" in package.json.
+    if (req.startsWith('@langchain/langgraph/')) {
+      const subPath = req.slice('@langchain/langgraph/'.length);
+      return Path.resolve(REPO_ROOT, `node_modules/@langchain/langgraph/dist/${subPath}/index.js`);
+    }
+
     // We need this "hack" because our current import-resolver doesn't support "exports" in package.json.
     // We should be able to remove this once we support cjs/esm interop.
     if (req.startsWith('@elastic/opentelemetry-node/sdk')) {

src/platform/packages/shared/kbn-router-to-openapispec/moon.yml

@@ -9,6 +9,8 @@ owners:
   defaultOwner: '@elastic/kibana-core'
 toolchains:
   default: node
+  javascript:
+    rootPackageDependenciesOnly: false
 language: typescript
 project:
   title: '@kbn/router-to-openapispec'

src/platform/packages/shared/kbn-router-to-openapispec/package.json

@@ -2,5 +2,8 @@
   "name": "@kbn/router-to-openapispec",
   "private": true,
   "version": "1.0.0",
-  "license": "Elastic License 2.0 OR AGPL-3.0-only OR SSPL-1.0"
+  "license": "Elastic License 2.0 OR AGPL-3.0-only OR SSPL-1.0",
+  "dependencies": {
+    "zod-to-json-schema": "3.25.0"
+  }
 }

src/platform/packages/shared/kbn-test/jest-preset.js

@@ -121,7 +121,7 @@ module.exports = {
   transformIgnorePatterns: [
     // ignore all node_modules except monaco-editor, monaco-yaml which requires babel transforms to handle dynamic import()
     // since ESM modules are not natively supported in Jest yet (https://github.com/facebook/jest/issues/4842)
-    '[/\\\\]node_modules(?![\\/\\\\](byte-size|monaco-editor|monaco-yaml|monaco-languageserver-types|monaco-marker-data-provider|monaco-worker-manager|vscode-languageserver-types|d3-interpolate|d3-color|langchain|langsmith|@cfworker|gpt-tokenizer|flat|@langchain|eventsource-parser|fast-check|@fast-check/jest|@assemblyscript|quickselect|rbush|zod/v4|vega-interpreter|vega-util|vega-tooltip))[/\\\\].+\\.js$',
+    '[/\\\\]node_modules(?![\\/\\\\](byte-size|monaco-editor|monaco-yaml|monaco-languageserver-types|monaco-marker-data-provider|monaco-worker-manager|vscode-languageserver-types|d3-interpolate|d3-color|langchain|langsmith|@cfworker|gpt-tokenizer|flat|@langchain|eventsource-parser|fast-check|@fast-check/jest|@assemblyscript|quickselect|rbush|zod/v4|vega-interpreter|vega-util|vega-tooltip|@modelcontextprotocol|pkce-challenge|ansi-styles))[/\\\\].+\\.js$',
     'packages/kbn-pm/dist/index.js',
     '[/\\\\]node_modules(?![\\/\\\\](langchain|langsmith|@langchain|zod/v4))/dist/[/\\\\].+\\.js$',
     '[/\\\\]node_modules(?![\\/\\\\](langchain|langsmith|@langchain|zod/v4))/dist/util/[/\\\\].+\\.js$',

src/platform/packages/shared/kbn-test/jest_integration_node/jest-preset.js

@@ -23,7 +23,7 @@ module.exports = {
   // An array of regexp pattern strings that are matched against, matched files will skip transformation:
   transformIgnorePatterns: [
     // since ESM modules are not natively supported in Jest yet (https://github.com/facebook/jest/issues/4842)
-    '[/\\\\]node_modules(?![\\/\\\\](langchain|langsmith|gpt-tokenizer|flat|@langchain|eventsource-parser|zod/v4))[/\\\\].+\\.js$',
+    '[/\\\\]node_modules(?![\\/\\\\](langchain|langsmith|gpt-tokenizer|flat|@langchain|eventsource-parser|zod/v4|ansi-styles))[/\\\\].+\\.js$',
     '[/\\\\]node_modules(?![\\/\\\\](langchain|langsmith|@langchain|zod/v4))/dist/[/\\\\].+\\.js$',
     '[/\\\\]node_modules(?![\\/\\\\](langchain|langsmith|@langchain|zod/v4))/dist/util/[/\\\\].+\\.js$',
   ],

tsconfig.base.json

@@ -2250,7 +2250,12 @@
       "zod": ["typings/zod/v3"],
       "zod/v4": ["typings/zod/v4"],
       "vega-lite": ["typings/vega/vega_lite"],
-      "vega-tooltip": ["typings/vega/vega_tooltip"]
+      "vega-tooltip": ["typings/vega/vega_tooltip"],
+      "@langchain/langgraph/prebuilt": ["node_modules/@langchain/langgraph/dist/prebuilt"],
+      "@langchain/classic/chains": ["node_modules/@langchain/classic/dist/chains"],
+      "@langchain/classic/evaluation": ["node_modules/@langchain/classic/dist/evaluation"],
+      "@langchain/classic/document_loaders/fs/directory": ["node_modules/@langchain/classic/dist/document_loaders/fs/directory"],
+      "@langchain/classic/document_loaders/fs/text": ["node_modules/@langchain/classic/dist/document_loaders/fs/text"]
     },
     // Support .tsx files and transform JSX into calls to React.createElement
     "jsx": "react",

x-pack/platform/packages/shared/ai-infra/inference-langchain/src/chat_model/inference_chat_model.test.ts

@@ -653,7 +653,9 @@ describe('InferenceChatModel', () => {
       });
 
       expect(concatChunk.usage_metadata).toEqual({
+        input_token_details: {},
         input_tokens: 5,
+        output_token_details: {},
         output_tokens: 20,
         total_tokens: 25,
       });

x-pack/platform/packages/shared/ai-infra/inference-langchain/src/chat_model/inference_chat_model.ts

@@ -173,10 +173,10 @@ export class InferenceChatModel extends BaseChatModel<InferenceChatModelCallOpti
   override bindTools(tools: BindToolsInput[], kwargs?: Partial<InferenceChatModelCallOptions>) {
     // conversion will be done at call time for simplicity's sake
     // so we just need to implement this method with the default behavior to support tools
-    return this.bind({
+    return this.withConfig({
       tools,
       ...kwargs,
-    } as Partial<InferenceChatModelCallOptions>);
+    });
   }
 
   invocationParams(options: this['ParsedCallOptions']): InvocationParams {

x-pack/platform/packages/shared/kbn-langchain/server/language_models/bedrock_chat.ts

@@ -5,13 +5,12 @@
  * 2.0.
  */
 
-import { BedrockChat as _BedrockChat } from '@langchain/community/chat_models/bedrock/web';
 import type { ActionsClient } from '@kbn/actions-plugin/server';
-import { BaseChatModelParams } from '@langchain/core/language_models/chat_models';
-import { Logger } from '@kbn/logging';
-import { PublicMethodsOf } from '@kbn/utility-types';
+import type { BaseChatModelParams } from '@langchain/core/language_models/chat_models';
+import type { Logger } from '@kbn/logging';
+import type { PublicMethodsOf } from '@kbn/utility-types';
 import type { TelemetryMetadata } from '@kbn/actions-plugin/server/lib';
-import { prepareMessages, DEFAULT_BEDROCK_MODEL, DEFAULT_BEDROCK_REGION } from '../utils/bedrock';
+import { ActionsClientChatBedrockConverse } from './chat_bedrock_converse/chat_bedrock_converse';
 
 export interface CustomChatModelInput extends BaseChatModelParams {
   actionsClient: PublicMethodsOf<ActionsClient>;
@@ -29,58 +28,4 @@ export interface CustomChatModelInput extends BaseChatModelParams {
  * ActionsClientBedrockChatModel chat model supports non-streaming only the Bedrock Invoke API.
  * The LangChain team will support only the Bedrock Converse API in the future.
  */
-export class ActionsClientBedrockChatModel extends _BedrockChat {
-  constructor({ actionsClient, connectorId, logger, ...params }: CustomChatModelInput) {
-    super({
-      ...params,
-      credentials: { accessKeyId: '', secretAccessKey: '' },
-      // only needed to force BedrockChat to use messages api for Claude v2
-      model: params.model ?? DEFAULT_BEDROCK_MODEL,
-      region: DEFAULT_BEDROCK_REGION,
-      fetchFn: async (url, options) => {
-        const inputBody = JSON.parse(options?.body as string);
-
-        if (this.streaming) {
-          throw new Error(
-            `ActionsClientBedrockChat does not support streaming, use ActionsClientChatBedrockConverse instead`
-          );
-        }
-
-        const data = (await actionsClient.execute({
-          actionId: connectorId,
-          params: {
-            subAction: 'invokeAIRaw',
-            subActionParams: {
-              telemetryMetadata: {
-                pluginId: params?.telemetryMetadata?.pluginId,
-                aggregateBy: params?.telemetryMetadata?.aggregateBy,
-              },
-              messages: prepareMessages(inputBody.messages),
-              temperature: params.temperature ?? inputBody.temperature,
-              stopSequences: inputBody.stop_sequences,
-              system: inputBody.system,
-              maxTokens: params.maxTokens ?? inputBody.max_tokens,
-              tools: inputBody.tools,
-              anthropicVersion: inputBody.anthropic_version,
-            },
-          },
-        })) as {
-          status: string;
-          data: { message: string };
-          message?: string;
-          serviceMessage?: string;
-        };
-        if (data.status === 'error') {
-          throw new Error(
-            `ActionsClientBedrockChat: action result status is error: ${data?.message} - ${data?.serviceMessage}`
-          );
-        }
-
-        return {
-          ok: data.status === 'ok',
-          json: () => data.data,
-        } as unknown as Response;
-      },
-    });
-  }
-}
+export class ActionsClientBedrockChatModel extends ActionsClientChatBedrockConverse {}

x-pack/platform/packages/shared/kbn-langchain/server/language_models/chat_openai.ts

@@ -129,7 +129,7 @@ export class ActionsClientChatOpenAI extends ChatOpenAI {
 
   async betaParsedCompletionWithRetry(
     request: OpenAI.ChatCompletionCreateParamsNonStreaming
-  ): Promise<ReturnType<OpenAIClient['beta']['chat']['completions']['parse']>> {
+  ): Promise<ReturnType<OpenAIClient['chat']['completions']['parse']>> {
     return this.completionWithRetry(request).then((response) =>
       parseChatCompletion(
         response,

x-pack/platform/packages/shared/kbn-langchain/server/language_models/gemini_chat.ts

@@ -50,6 +50,7 @@ export class ActionsClientGeminiChatModel extends ChatGoogleGenerativeAI {
   constructor({ actionsClient, connectorId, ...props }: CustomChatModelInput) {
     super({
       ...props,
+      model: props.model ?? 'gemini-1.5-flash',
       apiKey: 'asda',
       maxOutputTokens: props.maxTokens ?? 2048,
     });
@@ -65,9 +66,10 @@ export class ActionsClientGeminiChatModel extends ChatGoogleGenerativeAI {
   }
 
   async completionWithRetry(
-    request: GenerateContentRequest,
-    options?: this['ParsedCallOptions']
+    ...args: Parameters<ChatGoogleGenerativeAI['completionWithRetry']>
   ): Promise<GenerateContentResult> {
+    const [request, options] = args;
+    const req = request as GenerateContentRequest;
     return this.caller.callWithOptions({ signal: options?.signal }, async () => {
       try {
         const requestBody = {
@@ -77,8 +79,8 @@ export class ActionsClientGeminiChatModel extends ChatGoogleGenerativeAI {
             subActionParams: {
               telemetryMetadata: this.telemetryMetadata,
               model: this.#model,
-              messages: request.contents,
-              tools: request.tools,
+              messages: req.contents,
+              tools: req.tools,
               temperature: this.#temperature,
             },
           },

x-pack/platform/packages/shared/kbn-langchain/server/utils/gemini.ts

@@ -182,11 +182,11 @@ export function convertMessageContentToParts(
         if (!isMultimodalModel) {
           throw new Error(`This model does not support images`);
         }
-        let source;
+        let source: string;
         if (typeof c.image_url === 'string') {
           source = c.image_url;
-        } else if (typeof c.image_url === 'object' && 'url' in c.image_url) {
-          source = c.image_url.url;
+        } else if (c.image_url && typeof c.image_url === 'object' && 'url' in c.image_url) {
+          source = c.image_url.url as string;
         } else {
           throw new Error('Please provide image as base64 encoded data URL');
         }

x-pack/platform/plugins/shared/integration_assistant/server/routes/analyze_logs_routes.ts

@@ -9,6 +9,7 @@ import type { IKibanaResponse, IRouter } from '@kbn/core/server';
 import { getRequestAbortedSignal } from '@kbn/data-plugin/server';
 import { APMTracer } from '@kbn/langchain/server/tracers/apm';
 import { getLangSmithTracer } from '@kbn/langchain/server/tracers/langsmith';
+import type { ESProcessorItem, SamplesFormat } from '../../common';
 import { ANALYZE_LOGS_PATH, AnalyzeLogsRequestBody, AnalyzeLogsResponse } from '../../common';
 import { FLEET_ALL_ROLE, INTEGRATIONS_ALL_ROLE, ROUTE_HANDLER_TIMEOUT } from '../constants';
 import { getLogFormatDetectionGraph } from '../graphs/log_type_detection/graph';
@@ -103,7 +104,12 @@ export function registerAnalyzeLogsRoutes(
           const graphResults = await graph
             .withConfig({ runName: 'Log Format' })
             .invoke(logFormatParameters, options);
-          const graphLogFormat = graphResults.results.samplesFormat.name;
+          const results = graphResults.results as {
+            samplesFormat: SamplesFormat;
+            parsedSamples: string[];
+            additionalProcessors: ESProcessorItem[];
+          };
+          const graphLogFormat = results.samplesFormat.name;
 
           switch (graphLogFormat) {
             case 'unsupported':

x-pack/solutions/search/plugins/search_playground/server/lib/conversational_chain.ts

@@ -77,7 +77,7 @@ export const getMessages = (chatHistory: ChatMessage[]) => {
       }
       return null;
     })
-    .filter((message): message is BaseMessage => message !== null);
+    .filter((message): message is HumanMessage | AIMessage => message !== null);
 };
 
 const buildContext = (docs: Document[]) => {

x-pack/solutions/security/plugins/elastic_assistant/scripts/draw_graph_script.ts

@@ -17,7 +17,7 @@ import {
 import type { Logger } from '@kbn/logging';
 import { ChatPromptTemplate } from '@langchain/core/prompts';
 import { FakeLLM } from '@langchain/core/utils/testing';
-import { createOpenAIFunctionsAgent } from 'langchain/agents';
+import { createOpenAIFunctionsAgent } from '@langchain/classic/agents';
 import { actionsClientMock } from '@kbn/actions-plugin/server/actions_client/actions_client.mock';
 import { coreMock, savedObjectsClientMock } from '@kbn/core/server/mocks';
 import { newContentReferencesStoreMock } from '@kbn/elastic-assistant-common/impl/content_references/content_references_store/__mocks__/content_references_store.mock';

x-pack/solutions/security/plugins/elastic_assistant/server/__mocks__/docs_from_directory_loader.ts

@@ -5,7 +5,7 @@
  * 2.0.
  */
 
-import { Document } from 'langchain/document';
+import type { Document } from '@langchain/core/documents';
 
 /**
  * Mock LangChain `Document`s loaded from a LangChain `DirectoryLoader`

x-pack/solutions/security/plugins/elastic_assistant/server/ai_assistant_data_clients/knowledge_base/index.ts

@@ -12,7 +12,7 @@ import {
   QueryDslQueryContainer,
 } from '@elastic/elasticsearch/lib/api/types';
 import type { MlPluginSetup } from '@kbn/ml-plugin/server';
-import { Document } from 'langchain/document';
+import { Document } from '@langchain/core/documents';
 import {
   DocumentEntryType,
   DocumentEntry,