An application features a tool designed to fetch a user's profile. During execution, the tool fails to…

Question

An application features a tool designed to fetch a user's profile. During execution, the tool fails to connect to the database due to a timeout. Why is silently returning an empty array [] in this scenario considered a catastrophic anti-pattern?

Accepted Answer

B. It causes the agent to misinterpret an access failure (could not check) as a valid empty result, wrongly concluding the user does not exist.

Answer

A. It prevents the use of few-shot prompting in the next iteration.

Answer

C. It forces the model to ignore all subsequent tool calls in the session.

Answer

D. It causes the Claude API to throw a 400 Bad Request error due to missing required schema fields.

Question 143