diff --git a/packages/core/src/ide/ide-installer.ts b/packages/core/src/ide/ide-installer.ts
index 52dcb6fb4ce..cefb1b05039 100644
--- a/packages/core/src/ide/ide-installer.ts
+++ b/packages/core/src/ide/ide-installer.ts
@@ -136,8 +136,8 @@ class VsCodeInstaller implements IdeInstaller {
         ['--install-extension', vsixPath, '--force'],
         {
           stdio: 'pipe',
-          shell: os.platform() === 'win32' && commandPath.endsWith('.cmd')
-        }
+          shell: os.platform() === 'win32' && commandPath.endsWith('.cmd'),
+        },
       );
       return {
         success: true,
diff --git a/packages/core/src/tools/web-fetch.ts b/packages/core/src/tools/web-fetch.ts
index c96cae6ce7f..6c89fe23f87 100644
--- a/packages/core/src/tools/web-fetch.ts
+++ b/packages/core/src/tools/web-fetch.ts
@@ -145,9 +145,8 @@ ${textContent}
         llmContent: resultText,
         returnDisplay: `Content for ${url} processed using fallback fetch.`,
       };
-    } catch (e) {
-      const error = e as Error;
-      const errorMessage = `Error during fallback fetch for ${url}: ${error.message}`;
+    } catch (error: unknown) {
+      const errorMessage = `Error during fallback fetch for ${url}: ${getErrorMessage(error)}`;
       return {
         llmContent: `Error: ${errorMessage}`,
         returnDisplay: `Error: ${errorMessage}`,
diff --git a/packages/core/src/utils/fetch.test.ts b/packages/core/src/utils/fetch.test.ts
index 02d7c6f2df4..d00012cc1a8 100644
--- a/packages/core/src/utils/fetch.test.ts
+++ b/packages/core/src/utils/fetch.test.ts
@@ -91,7 +91,8 @@ describe('fetchWithTimeout', () => {
   it('should throw FetchError with ETIMEDOUT code when request times out', async () => {
     // Mock fetch to simulate timeout behavior
     (fetch as unknown as ReturnType<typeof vi.fn>).mockImplementation(
-      (url: string, options: { signal: AbortSignal }) => new Promise((_, reject) => {
+      (url: string, options: { signal: AbortSignal }) =>
+        new Promise((_, reject) => {
           if (options.signal.aborted) {
             const error = new Error('The operation was aborted');
             (error as any).code = 'ABORT_ERR';