AI agents call get_latest_lottery to retrieve information from Lottery 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 historical lottery drawing results. It performs no writes, deletes, executions, or financial transactions. The data retrieved is historical lottery information, and the tool has no side effects beyond returning data to the caller. This is a straightforward data retrieval operation with minimal risk.
From the tool's definition Tool name 'get_latest_lottery' and description '获取最新N期双色球开奖数据' (get latest N periods of double-color ball lottery drawing data) indicate data retrieval with no modification capability. The description explicitly uses '获取' (get/retrieve), a read-only operation.
Attacks that exploit this kind of access
获取最新N期双色球开奖数据. It is categorised as a Read tool in the Lottery MCP Server, which means it retrieves data without modifying state.
Register the Lottery MCP server in PolicyLayer and add a rule for get_latest_lottery: 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 Lottery. Nothing to install.
get_latest_lottery 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 get_latest_lottery 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 get_latest_lottery. 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.
get_latest_lottery is provided by the Lottery MCP server (lumosylva/lottery-mcp-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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