Câu 18: CCA-F: Claude Certified Architect - Foundations

Your expense reimbursement agent processes employee requests using a process_reimbursement tool. Company policy requires that reimbursements above $500 must be approved by a manager before funds are disbursed. The agent handles hundreds of requests daily, and you need the threshold enforcement to be tamper-proof regardless of how the agent is prompted. Which design ensures the $500 approval threshold cannot be bypassed?

1. A. The process_reimbursement tool accepts amount and details, and internally enforces the threshold: amounts $500 cause the tool to create a pending approval request and return a status indicating manager review is pending. — đáp án hiện tại
2. B. The process_reimbursement tool accepts an approved_by_manager: boolean parameter. The system prompt instructs the agent to only set this to true after confirming that a manager has approved the request. A nightly audit script reviews all reimbursements where approved_by_manager was set to true.
3. C. Provide two tools: auto_reimburse (hard-coded limit of $500) and request_manager_approval. Include detailed system prompt instructions telling the agent to check the amount and call the appropriate tool. Add a PostToolUse hook that logs which tool was called for auditing.
4. D. Implement the threshold check in a PreToolUse hook that inspects the amount parameter before process_reimbursement executes. If the amount exceeds $500, the hook modifies the tool call to add a requires_approval: true flag, which the tool checks before disbursing.