Question 18: CCDV-F: Claude Certified Developer - Foundations

Your Claude agent has access to a tool that retrieves customer records. A teammate has noticed that the agent occasionally calls the tool with arguments the schema does not declare, and the tool’s downstream service returns an error each time. The teammate proposes loosening the schema so the tool accepts whatever arguments the model produces. How would you respond?

1. A. Remove the schema entirely and rely on the downstream service to reject invalid calls, treating the downstream service as the team’s primary enforcement layer.
2. B. Loosen the schema as the teammate proposed so the downstream service receives every call the agent makes during normal operation.
3. C. Add a system prompt instruction telling the model to produce schema-conforming arguments, treating the prompt instruction as the primary mechanism for keeping the agent’s tool calls valid.
4. D. Keep the schema strict, validate arguments before dispatching, and return a structured error so the agent can retry. — đáp án hiện tại