[pull] main from langchain-ai:main

.github/labeler.yml

@@ -0,0 +1,142 @@
+# Configuration for GitHub Actions Labeler
+# https://github.com/actions/labeler
+
+internal:
+  - changed-files:
+      - any-glob-to-any-file:
+          - internal/**
+          - internal/**/*
+
+ci:
+  - changed-files:
+      - any-glob-to-any-file:
+          - .github/workflows/**
+          - .github/actions/**
+          - dependency_range_tests/**
+          - dependency_range_tests/**/*
+          - environment_tests/**
+          - environment_tests/**/*
+          - libs/langchain-scripts/**
+          - libs/langchain-scripts/**/*
+          - libs/langchain-standard-tests/**
+          - libs/langchain-standard-tests/**/*
+
+examples:
+  - changed-files:
+      - any-glob-to-any-file:
+          - examples/**
+          - examples/**/*
+
+langchain:
+  - changed-files:
+      - any-glob-to-any-file:
+          - langchain/**
+          - langchain/**/*
+
+core:
+  - changed-flies:
+      - any-glob-to-any-file:
+          - langchain-core/**
+          - langchain-core/**/*
+
+textsplitters:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-textsplitters/**
+          - libs/langchain-textsplitters/**/*
+
+provider/anthropic:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-anthropic/**
+          - libs/langchain-anthropic/**/*
+
+provider/aws:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-aws/**
+          - libs/langchain-aws/**/*
+
+provider/azure:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-*azure*/**
+          - libs/langchain-*azure*/**/*
+
+provider/ollama:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-ollama/**
+          - libs/langchain-ollama/**/*
+
+provider/openai:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-openai/**
+          - libs/langchain-openai/**/*
+
+provider/google:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-*google*/**
+          - libs/langchain-*google*/**/*
+
+provider/groq:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-groq/**
+          - libs/langchain-groq/**/*
+
+provider/mistralai:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-mistralai/**
+          - libs/langchain-mistralai/**/*
+
+provider/mongodb:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-mongodb/**
+          - libs/langchain-mongodb/**/*
+
+provider/redis:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-redis/**
+          - libs/langchain-redis/**/*
+
+provider/xai:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-xai/**
+          - libs/langchain-xai/**/*
+
+community:
+  - changed-files:
+      - any-glob-to-any-file:
+          - libs/langchain-community/**
+          - libs/langchain-community/**/*
+          - libs/langchain-baidu-qianfan/**
+          - libs/langchain-baidu-qianfan/**/*
+          - libs/langchain-cerebras/**
+          - libs/langchain-cerebras/**/*
+          - libs/langchain-cloudflare/**
+          - libs/langchain-cloudflare/**/*
+          - libs/langchain-cohere/**
+          - libs/langchain-cohere/**/*
+          - libs/langchain-exa/**
+          - libs/langchain-exa/**/*
+          - libs/langchain-mixedbread-ai/**
+          - libs/langchain-mixedbread-ai/**/*
+          - libs/langchain-nomic/**
+          - libs/langchain-nomic/**/*
+          - libs/langchain-pinecone/**
+          - libs/langchain-pinecone/**/*
+          - libs/langchain-qdrant/**
+          - libs/langchain-qdrant/**/*
+          - libs/langchain-tavily/**
+          - libs/langchain-tavily/**/*
+          - libs/langchain-weaviate/**
+          - libs/langchain-weaviate/**/*
+          - libs/langchain-yandex/**
+          - libs/langchain-yandex/**/*

.github/workflows/labeler.yml

@@ -0,0 +1,20 @@
+# Automatically label PRs based on the files changed
+name: "Pull Request Labeler"
+
+on:
+  pull_request_target:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  label:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Label PR based on file paths
+        uses: actions/labeler@v5
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          sync-labels: true # Remove labels when files no longer match

langchain-core/CHANGELOG.md

@@ -1,5 +1,12 @@
 # @langchain/core
 
+## 0.3.78
+
+### Patch Changes
+
+- 1519a97: update chunk concat logic to match on missing ID fields
+- 079e11d: omit tool call chunks without tool call id
+
 ## 0.3.76
 
 ### Patch Changes

langchain-core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@langchain/core",
-  "version": "0.3.77",
+  "version": "0.3.78",
   "description": "Core LangChain.js abstractions and schemas",
   "type": "module",
   "engines": {

langchain/CHANGELOG.md

@@ -1,5 +1,15 @@
 # langchain
 
+## 0.3.35
+
+### Patch Changes
+
+- fd4691f: use `keyEncoder` instead of insecure cache key getter
+- 2f19cd5: feat: Add Perplexity support to universal chat model
+- 3c94076: fix(langchain): Bind schemas for other types of pulled hub prompts
+- Updated dependencies [d38e9d6]
+  - @langchain/openai@0.6.14
+
 ## 0.3.34
 
 ### Patch Changes

langchain/package.json

@@ -1,6 +1,6 @@
 {
   "name": "langchain",
-  "version": "0.3.34",
+  "version": "0.3.35",
   "description": "Typescript bindings for langchain",
   "type": "module",
   "engines": {

libs/langchain-anthropic/CHANGELOG.md

@@ -1,5 +1,13 @@
 # @langchain/anthropic
 
+## 0.3.29
+
+### Patch Changes
+
+- 93493ee: add support for context management
+- 93493ee: add support for memory server tools
+- 93493ee: add default init options for sonnet-4.5
+
 ## 0.3.28
 
 ### Patch Changes

libs/langchain-anthropic/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@langchain/anthropic",
-  "version": "0.3.28",
+  "version": "0.3.29",
   "description": "Anthropic integrations for LangChain.js",
   "type": "module",
   "engines": {
@@ -35,7 +35,7 @@
   "author": "LangChain",
   "license": "MIT",
   "dependencies": {
-    "@anthropic-ai/sdk": "^0.56.0",
+    "@anthropic-ai/sdk": "^0.65.0",
     "fast-xml-parser": "^4.4.1"
   },
   "peerDependencies": {

libs/langchain-anthropic/src/chat_models.ts

@@ -38,6 +38,7 @@ import {
 } from "./utils/message_outputs.js";
 import {
   AnthropicBuiltInToolUnion,
+  AnthropicContextManagementConfigParam,
   AnthropicMessageCreateParams,
   AnthropicMessageStreamEvent,
   AnthropicRequestOptions,
@@ -83,7 +84,7 @@ function _documentsInParams(
         block != null &&
         block.type === "document" &&
         typeof block.citations === "object" &&
-        block.citations.enabled
+        block.citations?.enabled
       ) {
         return true;
       }
@@ -104,22 +105,25 @@ function isAnthropicTool(tool: any): tool is Anthropic.Messages.Tool {
 }
 
 function isBuiltinTool(tool: unknown): tool is AnthropicBuiltInToolUnion {
-  const builtinTools = [
-    "web_search",
-    "bash",
-    "code_execution",
-    "computer",
-    "str_replace_editor",
-    "str_replace_based_edit_tool",
+  const builtInToolPrefixes = [
+    "text_editor_",
+    "computer_",
+    "bash_",
+    "web_search_",
+    "web_fetch_",
+    "str_replace_editor_",
+    "str_replace_based_edit_tool_",
+    "code_execution_",
+    "memory_",
   ];
   return (
     typeof tool === "object" &&
     tool !== null &&
     "type" in tool &&
     "name" in tool &&
-    typeof tool.type === "string" &&
-    typeof tool.name === "string" &&
-    builtinTools.includes(tool.name)
+    builtInToolPrefixes.some(
+      (prefix) => typeof tool.type === "string" && tool.type.startsWith(prefix)
+    )
   );
 }
 
@@ -160,7 +164,7 @@ export interface AnthropicInput {
    * To not set this field, pass `null`. If `undefined` is passed,
    * the default (-1) will be used.
    *
-   * For Opus 4.1, this defaults to `null`.
+   * For Opus 4.1 and Sonnet 4.5, this defaults to `null`.
    */
   topP?: number | null;
 
@@ -222,6 +226,11 @@ export interface AnthropicInput {
    * Options for extended thinking.
    */
   thinking?: AnthropicThinkingConfigParam;
+
+  /**
+   * Configuration for context management. See https://docs.claude.com/en/docs/build-with-claude/context-editing
+   */
+  contextManagement?: AnthropicContextManagementConfigParam;
 }
 
 /**
@@ -681,6 +690,8 @@ export class ChatAnthropicMessages<
 
   thinking: AnthropicThinkingConfigParam = { type: "disabled" };
 
+  contextManagement?: AnthropicContextManagementConfigParam;
+
   // Used for non-streaming requests
   protected batchClient: Anthropic;
 
@@ -720,8 +731,8 @@ export class ChatAnthropicMessages<
 
     this.invocationKwargs = fields?.invocationKwargs ?? {};
 
-    if (this.model.includes("opus-4-1")) {
-      // Default to `undefined` for `topP` for Opus 4.1 models
+    // Default to `undefined` for `topP` for Opus 4.1 and Sonnet 4.5 models
+    if (this.model.includes("opus-4-1") || this.model.includes("sonnet-4-5")) {
       this.topP = fields?.topP === null ? undefined : fields?.topP;
     } else {
       this.topP = fields?.topP ?? this.topP;
@@ -872,6 +883,7 @@ export class ChatAnthropicMessages<
       tools: this.formatStructuredToolToAnthropic(options?.tools),
       tool_choice,
       thinking: this.thinking,
+      context_management: this.contextManagement,
       ...this.invocationKwargs,
     };
   }