查询单张券码的详细信息，包括状态、面值、有效期、核销次数。
AI agents call coupon_detail to retrieve information from Coffee Company 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 coupon metadata without creating, modifying, or deleting data. It is a read-only query operation with minimal blast radius if misused by an AI agent—at worst it reveals coupon information the agent shouldn't access, but causes no irreversible changes or financial transactions.
From the tool's definition Tool name 'coupon_detail' and description '查询单张券码的详细信息，包括状态、面值、有效期、核销次数' (query detailed information of a single coupon code, including status, face value, validity period, redemption count).
Attacks that exploit this kind of access
查询单张券码的详细信息，包括状态、面值、有效期、核销次数。. It is categorised as a Read tool in the Coffee Company MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Coffee Company MCP Server MCP server in PolicyLayer and add a rule for coupon_detail: 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 Coffee Company MCP Server. Nothing to install.
coupon_detail 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 coupon_detail 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 coupon_detail. 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.
coupon_detail is provided by the Coffee Company MCP Server MCP server (sawzhang/coffee-mcp). 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.
Teams ship this data inside their own products. See what a licence covers →