查询饮品营养成分（热量、蛋白质、脂肪等）。当用户问"多少卡"、"热量高吗"时使用。
AI agents call nutrition_info 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 and displays nutritional data about coffee beverages in response to user queries about caloric content and nutritional composition. It has no capability to modify, delete, execute code, process payments, or trigger external operations. The only action is read-only information retrieval, making it a straightforward Read category tool with low severity.
From the tool's definition Tool name 'nutrition_info' and description explicitly state it queries beverage nutrition information (calories, protein, fat, etc.). The verb '查询' (query) indicates data retrieval with no modification or side effects.
Attacks that exploit this kind of access
查询饮品营养成分（热量、蛋白质、脂肪等）。当用户问"多少卡"、"热量高吗"时使用。. 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 nutrition_info: 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.
nutrition_info 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 nutrition_info 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 nutrition_info. 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.
nutrition_info 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.
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