diff --git a/src/resources/blueprints.ts b/src/resources/blueprints.ts
index 993c3f0d0..cf0971bd4 100644
--- a/src/resources/blueprints.ts
+++ b/src/resources/blueprints.ts
@@ -56,7 +56,9 @@ function validateFileMounts(fileMounts?: { [key: string]: string } | null): Arra
       const over = sizeBytes - FILE_MOUNT_MAX_SIZE_BYTES;
       errors.push(
         `file_mount '${mountPath}' is ${formatBytes(over)} over the limit (` +
-          `${formatBytes(sizeBytes)} / ${formatBytes(FILE_MOUNT_MAX_SIZE_BYTES)}). Use object_mounts instead.`,
+          `${formatBytes(sizeBytes)} / ${formatBytes(
+            FILE_MOUNT_MAX_SIZE_BYTES,
+          )}). Use object_mounts instead.`,
       );
     }
     totalSizeBytes += sizeBytes;
@@ -66,7 +68,9 @@ function validateFileMounts(fileMounts?: { [key: string]: string } | null): Arra
     const totalOver = totalSizeBytes - FILE_MOUNT_TOTAL_MAX_SIZE_BYTES;
     errors.push(
       `total file_mounts size is ${formatBytes(totalOver)} over the limit (` +
-        `${formatBytes(totalSizeBytes)} / ${formatBytes(FILE_MOUNT_TOTAL_MAX_SIZE_BYTES)}). Use object_mounts instead.`,
+        `${formatBytes(totalSizeBytes)} / ${formatBytes(
+          FILE_MOUNT_TOTAL_MAX_SIZE_BYTES,
+        )}). Use object_mounts instead.`,
     );
   }
 
diff --git a/src/sdk.ts b/src/sdk.ts
index e7c8943f8..c46b7fb28 100644
--- a/src/sdk.ts
+++ b/src/sdk.ts
@@ -595,18 +595,6 @@ export class StorageObjectOps {
   }
 }
 
-// @deprecated Use {@link RunloopSDK} instead.
-/**
- * @deprecated Use {@link RunloopSDK} instead.
- * @example
- * ```typescript
- * import { RunloopSDK } from '@runloop/api-client';
- * const sdk = new RunloopSDK();
- * const devbox = await sdk.devbox.create({ name: 'my-devbox' });
- * ```
- */
-export default Runloop;
-
 export declare namespace RunloopSDK {
   export {
     RunloopSDK as Client,
@@ -620,6 +608,7 @@ export declare namespace RunloopSDK {
     StorageObject as StorageObject,
   };
 }
+
 // Export SDK classes from sdk/sdk.ts - these are separate from RunloopSDK to avoid circular dependencies
 export {
   Devbox,
diff --git a/src/sdk/storage-object.ts b/src/sdk/storage-object.ts
index 2f968e299..7ecca31be 100644
--- a/src/sdk/storage-object.ts
+++ b/src/sdk/storage-object.ts
@@ -6,6 +6,7 @@ import type {
   ObjectDownloadURLView,
   ObjectListParams,
 } from '../resources/objects';
+import { fetch } from '../_shims/index';
 import * as fs from 'node:fs/promises';
 import * as path from 'node:path';
 import * as tar from 'tar';
@@ -312,7 +313,7 @@ export class StorageObject {
     try {
       const response = await fetch(uploadUrl, {
         method: 'PUT',
-        body: new Blob([text]),
+        body: text,
       });
 
       if (!response.ok) {
@@ -387,7 +388,7 @@ export class StorageObject {
     try {
       const response = await fetch(uploadUrl, {
         method: 'PUT',
-        body: new Blob([buffer]),
+        body: buffer,
       });
 
       if (!response.ok) {
@@ -430,14 +431,16 @@ export class StorageObject {
     let buffer;
     try {
       const tarStream = tar.create({ gzip: true, cwd: dirPath }, ['.']);
-      const chunks = [];
+      const chunks: Buffer[] = [];
       for await (const chunk of tarStream) {
         chunks.push(chunk);
       }
-      buffer = Buffer.concat(chunks);
+      buffer = Buffer.concat(chunks as readonly Uint8Array[]);
     } catch (error) {
       throw new Error(
-        `Failed to create tarball from directory ${dirPath}: ${error instanceof Error ? error.message : 'Unknown error'}`,
+        `Failed to create tarball from directory ${dirPath}: ${
+          error instanceof Error ? error.message : 'Unknown error'
+        }`,
       );
     }
 
diff --git a/src/uploads.ts b/src/uploads.ts
index 2264b5704..5fde000d0 100644
--- a/src/uploads.ts
+++ b/src/uploads.ts
@@ -156,9 +156,7 @@ async function getBytes(value: ToFileInput): Promise<Array<BlobPart>> {
     }
   } else {
     throw new Error(
-      `Unexpected data type: ${typeof value}; constructor: ${
-        value?.constructor?.name
-      }; props: ${propsForError(value)}`,
+      `Unexpected data type: ${typeof value}; constructor: ${value?.constructor?.name}; props: ${propsForError(value)}`,
     );
   }
 
diff --git a/tests/api-resources/agents.test.ts b/tests/api-resources/agents.test.ts
index 6513f221d..2d263095e 100644
--- a/tests/api-resources/agents.test.ts
+++ b/tests/api-resources/agents.test.ts
@@ -1,6 +1,6 @@
 // File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
-import Runloop from '@runloop/api-client';
+import { Runloop } from '@runloop/api-client';
 import { Response } from 'node-fetch';
 
 const client = new Runloop({
diff --git a/tests/index.test.ts b/tests/index.test.ts
index 6db7c9732..8ce09d171 100644
--- a/tests/index.test.ts
+++ b/tests/index.test.ts
@@ -285,8 +285,8 @@ describe('retries', () => {
     let count = 0;
     const testFetch = async (url: RequestInfo, { signal }: RequestInit = {}): Promise<Response> => {
       if (count++ === 0) {
-        return new Promise((resolve, reject) =>
-          signal?.addEventListener('abort', () => reject(new Error('timed out'))),
+        return new Promise(
+          (resolve, reject) => signal?.addEventListener('abort', () => reject(new Error('timed out'))),
         );
       }
       return new Response(JSON.stringify({ a: 1 }), { headers: { 'Content-Type': 'application/json' } });
diff --git a/tests/lib/streaming-reconnection.test.ts b/tests/lib/streaming-reconnection.test.ts
index d6f72abe7..97e169f0f 100644
--- a/tests/lib/streaming-reconnection.test.ts
+++ b/tests/lib/streaming-reconnection.test.ts
@@ -1,3 +1,4 @@
+import { ReadableStream, ReadableStreamDefaultController } from 'stream/web';
 import { APIError } from '../../src/error';
 import { withStreamAutoReconnect } from '../../src/lib/streaming-reconnection';
 import { Stream } from '../../src/streaming';
@@ -37,7 +38,7 @@ function createStreamFactory(
     let lastDeliveredOffset = offset ?? 0;
 
     const readable = new ReadableStream<Uint8Array>({
-      async pull(controller) {
+      async pull(controller: ReadableStreamDefaultController<Uint8Array>) {
         const trigger = takeTrigger(lastDeliveredOffset);
         if (trigger) {
           controller.error(trigger.error ?? new Error('Synthetic failure'));
@@ -220,7 +221,7 @@ describe('withStreamAutoReconnect', () => {
         creatorCalls += 1;
         const abortController = new AbortController();
         const readable = new ReadableStream<Uint8Array>({
-          pull(controller) {
+          pull(controller: ReadableStreamDefaultController<Uint8Array>) {
             controller.error(error);
           },
           cancel() {
diff --git a/tests/objects/storage-object.test.ts b/tests/objects/storage-object.test.ts
index d3d2e5572..9c71e62df 100644
--- a/tests/objects/storage-object.test.ts
+++ b/tests/objects/storage-object.test.ts
@@ -4,8 +4,17 @@ import type { ObjectView, ObjectDownloadURLView } from '../../src/resources/obje
 // Mock the Runloop client
 jest.mock('../../src/index');
 
-// Mock fetch globally
-(global as any).fetch = jest.fn();
+// Mock node-fetch (used by shims in Node.js environment)
+// We'll get a reference to the mock in beforeEach
+jest.mock('node-fetch', () => {
+  const mockFn = jest.fn();
+  // Store on global so we can access it
+  (global as any).__nodeFetchMock = mockFn;
+  return {
+    default: mockFn,
+    __esModule: true,
+  };
+});
 
 // Mock fs and path modules
 jest.mock('node:fs/promises', () => ({
@@ -32,11 +41,17 @@ describe('StorageObject (New API)', () => {
   let mockObjectData: ObjectView;
   let mockFs: any;
   let mockPath: any;
+  let mockFetch: jest.Mock;
 
   beforeEach(() => {
     // Get mocked modules
     mockFs = require('node:fs/promises');
     mockPath = require('node:path');
+    
+    // Get the mocked fetch function from node-fetch
+    const nodeFetch = require('node-fetch');
+    mockFetch = nodeFetch.default;
+    (global as any).fetch = mockFetch;
 
     // Create mock client instance with proper structure
     mockClient = {
@@ -93,7 +108,7 @@ describe('StorageObject (New API)', () => {
     };
 
     // Reset fetch mock
-    ((global as any).fetch as jest.Mock).mockReset();
+    mockFetch.mockReset();
   });
 
   describe('create', () => {
@@ -234,11 +249,11 @@ describe('StorageObject (New API)', () => {
           statusText: 'OK',
         };
 
-        ((global as any).fetch as jest.Mock).mockResolvedValue(mockFetchResponse);
+        mockFetch.mockResolvedValue(mockFetchResponse);
 
         await storageObject.uploadContent('Hello, World!');
 
-        expect((global as any).fetch).toHaveBeenCalledWith(mockObjectData.upload_url, {
+        expect(mockFetch).toHaveBeenCalledWith(mockObjectData.upload_url, {
           method: 'PUT',
           body: Buffer.from('Hello, World!', 'utf-8'),
         });
@@ -254,12 +269,12 @@ describe('StorageObject (New API)', () => {
           statusText: 'OK',
         };
 
-        ((global as any).fetch as jest.Mock).mockResolvedValue(mockFetchResponse);
+        mockFetch.mockResolvedValue(mockFetchResponse);
 
         const buffer = Buffer.from([0x89, 0x50, 0x4e, 0x47]);
         await storageObject.uploadContent(buffer);
 
-        expect((global as any).fetch).toHaveBeenCalledWith(mockObjectData.upload_url, {
+        expect(mockFetch).toHaveBeenCalledWith(mockObjectData.upload_url, {
           method: 'PUT',
           body: buffer,
         });
@@ -284,7 +299,7 @@ describe('StorageObject (New API)', () => {
           text: jest.fn().mockResolvedValue('Forbidden'),
         };
 
-        ((global as any).fetch as jest.Mock).mockResolvedValue(mockFetchResponse);
+        mockFetch.mockResolvedValue(mockFetchResponse);
 
         await expect(storageObject.uploadContent('test')).rejects.toThrow('Upload failed: 403');
       });
@@ -355,11 +370,11 @@ describe('StorageObject (New API)', () => {
           text: jest.fn().mockResolvedValue('File contents'),
         };
 
-        ((global as any).fetch as jest.Mock).mockResolvedValue(mockFetchResponse);
+        mockFetch.mockResolvedValue(mockFetchResponse);
 
         const content = await storageObject.downloadAsText();
 
-        expect((global as any).fetch).toHaveBeenCalledWith(mockDownloadUrl.download_url);
+        expect(mockFetch).toHaveBeenCalledWith(mockDownloadUrl.download_url);
         expect(content).toBe('File contents');
       });
 
@@ -376,7 +391,7 @@ describe('StorageObject (New API)', () => {
           statusText: 'Not Found',
         };
 
-        ((global as any).fetch as jest.Mock).mockResolvedValue(mockFetchResponse);
+        mockFetch.mockResolvedValue(mockFetchResponse);
 
         await expect(storageObject.downloadAsText()).rejects.toThrow('Download failed: 404 Not Found');
       });
@@ -396,11 +411,11 @@ describe('StorageObject (New API)', () => {
           arrayBuffer: jest.fn().mockResolvedValue(mockArrayBuffer),
         };
 
-        ((global as any).fetch as jest.Mock).mockResolvedValue(mockFetchResponse);
+        mockFetch.mockResolvedValue(mockFetchResponse);
 
         const buffer = await storageObject.downloadAsBuffer();
 
-        expect((global as any).fetch).toHaveBeenCalledWith(mockDownloadUrl.download_url);
+        expect(mockFetch).toHaveBeenCalledWith(mockDownloadUrl.download_url);
         expect(Buffer.isBuffer(buffer)).toBe(true);
         expect(buffer.length).toBe(4);
       });
@@ -435,7 +450,7 @@ describe('StorageObject (New API)', () => {
 
       // Upload - mock getInfo for uploadContent
       mockClient.objects.retrieve.mockResolvedValue(mockObjectData);
-      ((global as any).fetch as jest.Mock).mockResolvedValue({ ok: true });
+      mockFetch.mockResolvedValue({ ok: true });
       await obj.uploadContent('Test content');
 
       // Complete
@@ -448,7 +463,7 @@ describe('StorageObject (New API)', () => {
         download_url: 'https://s3.example.com/download/workflow-test.txt',
       };
       mockClient.objects.download.mockResolvedValue(mockDownloadUrl);
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         text: jest.fn().mockResolvedValue('Test content'),
       });
@@ -463,7 +478,7 @@ describe('StorageObject (New API)', () => {
       // Clear all mocks
       jest.clearAllMocks();
       // Reset global fetch mock
-      ((global as any).fetch as jest.Mock).mockClear();
+      mockFetch.mockClear();
     });
 
     it('should upload a text file with auto-detected content-type', async () => {
@@ -479,7 +494,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -509,7 +524,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -559,7 +574,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.create.mockResolvedValue(mockObjectData);
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: false,
         status: 500,
         statusText: 'Internal Server Error',
@@ -583,7 +598,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -610,7 +625,7 @@ describe('StorageObject (New API)', () => {
       // Clear all mocks
       jest.clearAllMocks();
       // Reset global fetch mock
-      ((global as any).fetch as jest.Mock).mockClear();
+      mockFetch.mockClear();
     });
 
     it('should upload text content with text content-type', async () => {
@@ -623,7 +638,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -636,7 +651,7 @@ describe('StorageObject (New API)', () => {
         undefined,
       );
       // uploadFromText uses Blob for fetch body
-      const fetchCalls = ((global as any).fetch as jest.Mock).mock.calls;
+      const fetchCalls = mockFetch.mock.calls;
       expect(fetchCalls[0][0]).toBe('https://upload.example.com/text');
       expect(fetchCalls[0][1].method).toBe('PUT');
       expect(fetchCalls[0][1].body).toBeInstanceOf(Blob);
@@ -654,7 +669,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -679,7 +694,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.create.mockResolvedValue(mockObjectData);
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: false,
         status: 403,
         statusText: 'Forbidden',
@@ -700,7 +715,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -721,7 +736,7 @@ describe('StorageObject (New API)', () => {
       // Clear all mocks
       jest.clearAllMocks();
       // Reset global fetch mock
-      ((global as any).fetch as jest.Mock).mockClear();
+      mockFetch.mockClear();
     });
 
     it('should upload buffer with specified content-type and name', async () => {
@@ -734,7 +749,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -749,7 +764,7 @@ describe('StorageObject (New API)', () => {
         { metadata: { source: 'buffer' } },
       );
       // uploadFromBuffer uses Blob for fetch body
-      const fetchCalls = ((global as any).fetch as jest.Mock).mock.calls;
+      const fetchCalls = mockFetch.mock.calls;
       expect(fetchCalls[0][0]).toBe('https://upload.example.com/buffer');
       expect(fetchCalls[0][1].method).toBe('PUT');
       expect(fetchCalls[0][1].body).toBeInstanceOf(Blob);
@@ -779,7 +794,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.create.mockResolvedValue(mockObjectData);
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: false,
         status: 403,
         statusText: 'Forbidden',
@@ -800,7 +815,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -823,7 +838,7 @@ describe('StorageObject (New API)', () => {
       // Clear all mocks
       jest.clearAllMocks();
       // Reset global fetch mock
-      ((global as any).fetch as jest.Mock).mockClear();
+      mockFetch.mockClear();
       // Get tar mock
       mockTar = require('tar');
     });
@@ -848,7 +863,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.retrieve.mockResolvedValue(mockObjectInfo);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -885,7 +900,7 @@ describe('StorageObject (New API)', () => {
       mockClient.objects.create.mockResolvedValue(mockObjectData);
       mockClient.objects.complete.mockResolvedValue(mockCompletedData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: true,
         status: 200,
         statusText: 'OK',
@@ -944,7 +959,7 @@ describe('StorageObject (New API)', () => {
       const mockObjectData = { id: 'dir-999', upload_url: 'https://upload.example.com/dir' };
       mockClient.objects.create.mockResolvedValue(mockObjectData);
 
-      ((global as any).fetch as jest.Mock).mockResolvedValue({
+      mockFetch.mockResolvedValue({
         ok: false,
         status: 500,
         statusText: 'Internal Server Error',
diff --git a/tests/smoketests/object-oriented/storage-object.test.ts b/tests/smoketests/object-oriented/storage-object.test.ts
index b28708ed9..fde73ab30 100644
--- a/tests/smoketests/object-oriented/storage-object.test.ts
+++ b/tests/smoketests/object-oriented/storage-object.test.ts
@@ -257,7 +257,7 @@ describe('smoketest: object-oriented storage object', () => {
         },
       });
       await tarStream.write(data);
-      const content = Buffer.concat(contentChunks);
+      const content = Buffer.concat(contentChunks as readonly Uint8Array[]);
       expect(content.toString('utf-8')).toBe('Hello from uploadFromDir!');
     } finally {
       await fs.unlink(contentPath).catch(() => {});