From aabceae13543d490e5a5ed2a35e47d4452c1ebee Mon Sep 17 00:00:00 2001
From: Eric Gustin <34000337+EricGustin@users.noreply.github.com>
Date: Fri, 27 Sep 2024 21:40:57 -0700
Subject: [PATCH] Improve ToolOutputError message (#73)

Before this PR error message:

![image](https://github.com/user-attachments/assets/2d36c05e-006a-4fc5-8265-d2371f9142e4)

Updated error message:

![image](https://github.com/user-attachments/assets/f7ae7a81-f9b2-4471-9c24-8b02c8009065)
---
 arcade/arcade/core/executor.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arcade/arcade/core/executor.py b/arcade/arcade/core/executor.py
index bf9d9882..6de7e1db 100644
--- a/arcade/arcade/core/executor.py
+++ b/arcade/arcade/core/executor.py
@@ -103,6 +103,10 @@ class ToolExecutor:
             output = output_model(**{"result": results})
 
         except ValidationError as e:
-            raise ToolOutputError(message="Error in output", developer_message=str(e)) from e
+            raise ToolOutputError(
+                message="Failed to serialize tool output",
+                developer_message=f"Validation error occurred while serializing tool output: {e!s}. "
+                f"Please ensure the tool's output matches the expected schema.",
+            ) from e
 
         return output