delete_answer_item
AI agents call delete_answer_item to permanently remove resources in Xiaoya Teacher — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The 'delete' verb unambiguously indicates an irreversible data removal action. Even without a detailed description, the function name makes clear this permanently removes answer items from the educational management system. This qualifies as Destructive rather than Write because deletion cannot be undone.
From the tool's definition Tool name is 'delete_answer_item', with 'delete' being an irreversible operation. The server context includes answer/test management functionality, indicating this removes answer data that cannot be recovered.
Attacks that exploit this kind of access
delete_answer_item. It is categorised as a Destructive tool in the Xiaoya Teacher MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Xiaoya Teacher MCP server in PolicyLayer and add a rule for delete_answer_item: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Xiaoya Teacher. Nothing to install.
delete_answer_item is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_answer_item rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for delete_answer_item. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
delete_answer_item is provided by the Xiaoya Teacher MCP server (sav1our520/xiaoya-teacher-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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