diff --git a/tools/docs/create.ts b/tools/docs/create.ts
index 6402faf4b0..563ae08e3c 100644
--- a/tools/docs/create.ts
+++ b/tools/docs/create.ts
@@ -130,23 +130,23 @@ export const createTool: ToolConfig<GoogleDocsToolParams, GoogleDocsCreateRespon
       throw error
     }
   },
-  transformError: async (error) => {
-    console.error('Google Docs create - Transform error:', error)
-
-    const errorMessage =
-      typeof error === 'object' && error !== null
-        ? error.message || JSON.stringify(error, null, 2)
-        : error.toString() || 'An error occurred while creating Google Docs document'
-
-    return {
-      success: false,
-      output: {
-        metadata: {
-          documentId: '',
-          title: '',
-        },
-      },
-      error: errorMessage,
+  transformError: (error) => {
+    // If it's an Error instance with a message, use that
+    if (error instanceof Error) {
+      return error.message
     }
+
+    // If it's an object with an error or message property
+    if (typeof error === 'object' && error !== null) {
+      if (error.error) {
+        return typeof error.error === 'string' ? error.error : JSON.stringify(error.error)
+      }
+      if (error.message) {
+        return error.message
+      }
+    }
+
+    // Default fallback message
+    return 'An error occurred while creating Google Docs document'
   },
 }
diff --git a/tools/docs/read.ts b/tools/docs/read.ts
index 2912bf28ab..ee0620810e 100644
--- a/tools/docs/read.ts
+++ b/tools/docs/read.ts
@@ -70,23 +70,24 @@ export const readTool: ToolConfig<GoogleDocsToolParams, GoogleDocsReadResponse>
       },
     }
   },
-  transformError: async (error) => {
-    const errorMessage =
-      typeof error === 'object' && error !== null
-        ? error.message || JSON.stringify(error, null, 2)
-        : error.toString() || 'An error occurred while reading Google Docs document'
-
-    return {
-      success: false,
-      output: {
-        content: '',
-        metadata: {
-          documentId: '',
-          title: '',
-        },
-      },
-      error: errorMessage,
+  transformError: (error) => {
+    // If it's an Error instance with a message, use that
+    if (error instanceof Error) {
+      return error.message
     }
+
+    // If it's an object with an error or message property
+    if (typeof error === 'object' && error !== null) {
+      if (error.error) {
+        return typeof error.error === 'string' ? error.error : JSON.stringify(error.error)
+      }
+      if (error.message) {
+        return error.message
+      }
+    }
+
+    // Default fallback message
+    return 'An error occurred while reading Google Docs document'
   },
 }
 
diff --git a/tools/docs/write.ts b/tools/docs/write.ts
index 852634f5a7..ea9203d109 100644
--- a/tools/docs/write.ts
+++ b/tools/docs/write.ts
@@ -116,22 +116,23 @@ export const writeTool: ToolConfig<GoogleDocsToolParams, GoogleDocsWriteResponse
       throw error
     }
   },
-  transformError: async (error) => {
-    const errorMessage =
-      typeof error === 'object' && error !== null
-        ? error.message || JSON.stringify(error, null, 2)
-        : error.toString() || 'An error occurred while writing to Google Docs'
-
-    return {
-      success: false,
-      output: {
-        updatedContent: false,
-        metadata: {
-          documentId: '',
-          title: '',
-        },
-      },
-      error: errorMessage,
+  transformError: (error) => {
+    // If it's an Error instance with a message, use that
+    if (error instanceof Error) {
+      return error.message
     }
+
+    // If it's an object with an error or message property
+    if (typeof error === 'object' && error !== null) {
+      if (error.error) {
+        return typeof error.error === 'string' ? error.error : JSON.stringify(error.error)
+      }
+      if (error.message) {
+        return error.message
+      }
+    }
+
+    // Default fallback message
+    return 'An error occurred while writing to Google Docs'
   },
 }
diff --git a/tools/sheets/read.ts b/tools/sheets/read.ts
index 71b34f3d0c..d1e334b6dd 100644
--- a/tools/sheets/read.ts
+++ b/tools/sheets/read.ts
@@ -84,9 +84,22 @@ export const readTool: ToolConfig<GoogleSheetsToolParams, GoogleSheetsReadRespon
     return result
   },
   transformError: (error) => {
-    if (typeof error === 'object' && error !== null) {
-      return JSON.stringify(error) || 'An error occurred while reading from Google Sheets'
+    // If it's an Error instance with a message, use that
+    if (error instanceof Error) {
+      return error.message
     }
-    return error.message || 'An error occurred while reading from Google Sheets'
+
+    // If it's an object with an error or message property
+    if (typeof error === 'object' && error !== null) {
+      if (error.error) {
+        return typeof error.error === 'string' ? error.error : JSON.stringify(error.error)
+      }
+      if (error.message) {
+        return error.message
+      }
+    }
+
+    // Default fallback message
+    return 'An error occurred while reading from Google Sheets'
   },
 }
diff --git a/tools/sheets/update.ts b/tools/sheets/update.ts
index fe516d2a51..853dba751d 100644
--- a/tools/sheets/update.ts
+++ b/tools/sheets/update.ts
@@ -93,6 +93,22 @@ export const updateTool: ToolConfig<GoogleSheetsToolParams, GoogleSheetsUpdateRe
     return result
   },
   transformError: (error) => {
-    return error.message || 'An error occurred while updating Google Sheets'
+    // If it's an Error instance with a message, use that
+    if (error instanceof Error) {
+      return error.message
+    }
+
+    // If it's an object with an error or message property
+    if (typeof error === 'object' && error !== null) {
+      if (error.error) {
+        return typeof error.error === 'string' ? error.error : JSON.stringify(error.error)
+      }
+      if (error.message) {
+        return error.message
+      }
+    }
+
+    // Default fallback message
+    return 'An error occurred while updating Google Sheets'
   },
 }
diff --git a/tools/sheets/write.ts b/tools/sheets/write.ts
index 200ac8ecc9..4dc231729f 100644
--- a/tools/sheets/write.ts
+++ b/tools/sheets/write.ts
@@ -93,6 +93,22 @@ export const writeTool: ToolConfig<GoogleSheetsToolParams, GoogleSheetsWriteResp
     return result
   },
   transformError: (error) => {
-    return error.message || 'An error occurred while writing to Google Sheets'
+    // If it's an Error instance with a message, use that
+    if (error instanceof Error) {
+      return error.message
+    }
+
+    // If it's an object with an error or message property
+    if (typeof error === 'object' && error !== null) {
+      if (error.error) {
+        return typeof error.error === 'string' ? error.error : JSON.stringify(error.error)
+      }
+      if (error.message) {
+        return error.message
+      }
+    }
+
+    // Default fallback message
+    return 'An error occurred while writing to Google Sheets'
   },
 }