查询活动日历，发现当前和即将开始的优惠活动。
AI agents call campaign_calendar 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 queries and retrieves calendar data about promotional campaigns without modifying, executing, or deleting anything. It is a passive information retrieval operation with no side effects, fitting the Read category. The low severity reflects minimal risk—an AI agent querying promotional calendars cannot cause harm even if misused.
From the tool's definition Tool name 'campaign_calendar' and description '查询活动日历，发现当前和即将开始的优惠活动' (query campaign calendar, discover current and upcoming promotional activities) indicate a read-only operation that retrieves promotional event information.
Attacks that exploit this kind of access
查询活动日历，发现当前和即将开始的优惠活动。. 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 campaign_calendar: 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.
campaign_calendar 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 campaign_calendar 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 campaign_calendar. 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.
campaign_calendar 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 →