fix: ensure cjs compatibility (#500)

typescript/examples/vitest.examples.config.ts

@@ -1,6 +1,6 @@
 import { defineConfig } from "vitest/config";
 import tsConfigPaths from "vite-tsconfig-paths";
-import packageJson from "../package.json" assert { type: "json" };
+import packageJson from "../package.json" with { type: "json" };
 
 export default defineConfig({
   test: {

typescript/package.json

@@ -176,30 +176,30 @@
   "dependencies": {
     "@ai-zen/node-fetch-event-source": "^2.1.4",
     "@opentelemetry/api": "^1.9.0",
-    "@streamparser/json": "^0.0.21",
-    "ai": "^4.1.24",
+    "@streamparser/json": "^0.0.22",
+    "ai": "^4.1.54",
     "ajv": "^8.17.1",
     "ajv-formats": "^3.0.1",
     "duck-duck-scrape": "^2.2.7",
-    "fast-xml-parser": "^4.5.0",
-    "header-generator": "^2.1.57",
+    "fast-xml-parser": "^5.0.8",
+    "header-generator": "^2.1.62",
     "joplin-turndown-plugin-gfm": "^1.0.12",
-    "jsonrepair": "^3.11.1",
+    "jsonrepair": "^3.12.0",
     "mathjs": "^14.0.0",
     "mustache": "^4.2.0",
     "object-hash": "^3.0.0",
-    "p-queue-compat": "^1.0.227",
+    "p-queue-compat": "^1.0.229",
     "p-throttle": "^7.0.0",
-    "pino": "^9.5.0",
+    "pino": "^9.6.0",
     "promise-based-task": "^3.1.1",
-    "remeda": "^2.17.4",
-    "serialize-error": "^11.0.3",
+    "remeda": "^2.21.0",
+    "serialize-error-cjs": "^0.2.0",
     "string-comparison": "^1.3.0",
-    "string-strip-html": "^13.4.8",
+    "string-strip-html": "^13.4.12",
     "turndown": "^7.2.0",
     "wikipedia": "^2.1.2",
-    "zod": "^3.23.8",
-    "zod-to-json-schema": "^3.23.5"
+    "zod": "~3.23.8",
+    "zod-to-json-schema": "^3.24.3"
   },
   "peerDependencies": {
     "@ai-sdk/amazon-bedrock": "^1.1.5",
@@ -283,9 +283,9 @@
     "@eslint/markdown": "^6.2.1",
     "@googleapis/customsearch": "^3.2.0",
     "@ibm-cloud/watsonx-ai": "^1.5.1",
-    "@langchain/community": "~0.3.28",
-    "@langchain/core": "~0.3.37",
-    "@langchain/langgraph": "^0.2.44",
+    "@langchain/community": "0.3.28",
+    "@langchain/core": "0.3.37",
+    "@langchain/langgraph": "0.2.44",
     "@langchain/ollama": "^0.1.5",
     "@modelcontextprotocol/sdk": "^1.0.4",
     "@opentelemetry/instrumentation": "^0.56.0",
@@ -316,7 +316,7 @@
     "eslint-plugin-unused-imports": "^4.1.4",
     "glob": "^11.0.0",
     "ibm-cloud-sdk-core": "^5.1.3",
-    "langchain": "~0.3.6",
+    "langchain": "0.3.6",
     "linkinator": "^6.1.2",
     "lint-staged": "^15.2.10",
     "ollama-ai-provider": "^1.2.0",
@@ -329,9 +329,9 @@
     "sequelize": "^6.37.5",
     "sqlite3": "^5.1.7",
     "strip-ansi": "^7.1.0",
-    "tsup": "^8.3.6",
+    "tsup": "^8.4.0",
     "tsx": "^4.19.2",
-    "typescript": "^5.7.3",
+    "typescript": "^5.8.2",
     "typescript-eslint": "^8.18.1",
     "vite-tsconfig-paths": "^5.1.4",
     "vitest": "^2.1.8",

typescript/src/adapters/vercel/backend/chat.ts

@@ -31,6 +31,8 @@ import {
   jsonSchema,
   LanguageModelV1,
   streamText,
+  TextPart,
+  ToolCallPart,
 } from "ai";
 import { Emitter } from "@/emitter/emitter.js";
 import { AssistantMessage, Message, ToolMessage } from "@/backend/message.js";
@@ -185,9 +187,12 @@ export abstract class VercelChatModel<
   protected transformMessages(messages: (CoreAssistantMessage | CoreToolMessage)[]): Message[] {
     return messages.flatMap((msg) => {
       if (msg.role === "tool") {
-        return new ToolMessage(msg.content, msg.experimental_providerMetadata);
+        return new ToolMessage(msg.content, msg.providerOptions);
       }
-      return new AssistantMessage(msg.content, msg.experimental_providerMetadata);
+      return new AssistantMessage(
+        msg.content as TextPart | ToolCallPart | string,
+        msg.providerOptions,
+      );
     });
   }
 

typescript/src/serializer/serializer.ts

@@ -18,7 +18,7 @@ import * as R from "remeda";
 import { Serializable, SerializableClass } from "@/internals/serializable.js";
 import { AnyConstructable, ClassConstructor, NamedFunction } from "@/internals/types.js";
 import { SafeWeakMap, SafeWeakSet } from "@/internals/helpers/weakRef.js";
-import { deserializeError, serializeError } from "serialize-error";
+import { deserializeError, serializeError } from "serialize-error-cjs";
 import { Version } from "@/version.js";
 import {
   extractClassName,

typescript/src/tools/search/duckDuckGoSearch.ts

@@ -15,8 +15,7 @@
  */
 
 import { SearchOptions, search as rawDDGSearch, SafeSearchType } from "duck-duck-scrape";
-import { stripHtml } from "string-strip-html";
-import pThrottle, { Options as ThrottleOptions } from "p-throttle";
+import { Options as ThrottleOptions } from "p-throttle";
 import {
   SearchToolOptions,
   SearchToolOutput,
@@ -83,8 +82,6 @@ export class DuckDuckGoSearchTool extends Tool<
       creator: this,
     });
 
-  protected readonly client: typeof rawDDGSearch;
-
   @Cache()
   inputSchema() {
     return z.object({
@@ -94,24 +91,25 @@ export class DuckDuckGoSearchTool extends Tool<
 
   public constructor(options: Partial<DuckDuckGoSearchToolOptions> = {}) {
     super({ ...options, maxResults: options?.maxResults ?? 15 });
-
-    this.client = this._createClient();
   }
 
   static {
     this.register();
   }
 
-  protected _createClient() {
+  @Cache({ enumerable: false })
+  protected async _createClient() {
     const { throttle } = this.options;
-
-    return throttle === false
-      ? rawDDGSearch
-      : pThrottle({
-          ...throttle,
-          limit: throttle?.limit ?? 1,
-          interval: throttle?.interval ?? 3000,
-        })(rawDDGSearch);
+    if (throttle === false) {
+      return rawDDGSearch;
+    }
+
+    const { default: pThrottle } = await import("p-throttle");
+    return pThrottle({
+      ...throttle,
+      limit: throttle?.limit ?? 1,
+      interval: throttle?.interval ?? 3000,
+    })(rawDDGSearch);
   }
 
   protected async _run(
@@ -120,11 +118,12 @@ export class DuckDuckGoSearchTool extends Tool<
     run: RunContext<this>,
   ) {
     const headers = new HeaderGenerator().getHeaders();
+    const client = await this._createClient();
 
     const results = await paginate({
       size: this.options.maxResults,
       handler: async ({ cursor = 0 }) => {
-        const { results: data, noResults: done } = await this.client(
+        const { results: data, noResults: done } = await client(
           input,
           {
             safeSearch: SafeSearchType.MODERATE,
@@ -153,6 +152,8 @@ export class DuckDuckGoSearchTool extends Tool<
       },
     });
 
+    const { stripHtml } = await import("string-strip-html");
+
     return new DuckDuckGoSearchToolOutput(
       results.map((result) => ({
         title: stripHtml(result.title).result,
@@ -161,9 +162,4 @@ export class DuckDuckGoSearchTool extends Tool<
       })),
     );
   }
-
-  loadSnapshot(snapshot: ReturnType<typeof this.createSnapshot>): void {
-    super.loadSnapshot(snapshot);
-    Object.assign(this, { client: this._createClient() });
-  }
 }

typescript/tsup.config.ts

@@ -1,9 +1,9 @@
 import { defineConfig } from "tsup";
-import packageJson from "./package.json" assert { type: "json" };
+import packageJson from "./package.json" with { type: "json" };
 import swc, { JscConfig } from "@swc/core";
 import path from "node:path";
 
-import tsConfig from "./tsconfig.json" assert { type: "json" };
+import tsConfig from "./tsconfig.json" with { type: "json" };
 import { JscTarget } from "@swc/types";
 
 export default defineConfig({

typescript/vitest.config.ts

@@ -1,6 +1,6 @@
 import { defineConfig } from "vitest/config";
 import tsConfigPaths from "vite-tsconfig-paths";
-import packageJson from "./package.json" assert { type: "json" };
+import packageJson from "./package.json" with { type: "json" };
 
 export default defineConfig({
   test: {