根据手机号查询预约记录
AI agents call query_reservations_by_mobile to retrieve information from Reservation System MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves reservation records filtered by a mobile phone number. It performs a read-only query operation against the reservation database. There is no data modification, deletion, or execution of arbitrary operations. The severity is low because unauthorized access to reservation records, while a privacy concern, has limited blast radius compared to write or destructive operations.
From the tool's definition Tool name 'query_reservations_by_mobile' and description '根据手机号查询预约记录' (query reservation records by mobile number) indicate a retrieval operation with no side effects. The function queries existing data without modification or deletion.
Attacks that exploit this kind of access
根据手机号查询预约记录. It is categorised as a Read tool in the Reservation System MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Reservation System MCP Server MCP server in PolicyLayer and add a rule for query_reservations_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.
query_reservations_by_mobile is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the query_reservations_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 query_reservations_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.
query_reservations_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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