根据手机号删除预约记录
AI agents call delete_reservation_by_mobile to permanently remove resources in Reservation System MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes reservation records from the WeChat Cloud database based on a mobile phone number. Deletion is irreversible and could result in loss of business-critical booking data, customer records, and audit trails. The high blast radius (potential bulk deletion via a single mobile number parameter) and inability to undo the action classify this as Destructive rather than Write.
From the tool's definition Tool name contains 'delete' and description translates to 'delete reservation record by mobile number'. The server description explicitly states the tool allows 'deleting entries through the WeChat Cloud Development API'.
Attacks that exploit this kind of access
根据手机号删除预约记录. It is categorised as a Destructive tool in the Reservation System MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Reservation System MCP Server MCP server in PolicyLayer and add a rule for delete_reservation_by_mobile: 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 Reservation System MCP Server. Nothing to install.
delete_reservation_by_mobile 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_reservation_by_mobile 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_reservation_by_mobile. 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_reservation_by_mobile is provided by the Reservation System MCP Server MCP server (lingki1/mcp-reservation-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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