CCDV-F: Claude Certified Developer — Foundations

By Anthropic · Question Mode

QuestionQ86

VerifiedTools and MCPs

You are building a custom tool for your Claude agent. The tool must interact with an external pricing service that returns product data.

Which of the following best practices would you use when developing this tool?

Explanation

A clear input schema specifies the parameters Claude should supply, while a precise description helps it choose when to call the tool. Explicitly handling pricing-service errors allows the application to return a meaningful error result to Claude rather than treating a failed lookup as successful. (platform.claude.com)

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