AI agents call index_perf_30 to retrieve information from Xueqiu MCP 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 stock index performance data with no side effects, modifications, or ability to execute external operations. It is a straightforward read operation that retrieves existing market data based on an index code parameter. No data is created, modified, or deleted, and no external operations are triggered.
From the tool's definition Tool name 'index_perf_30' and description '获取指数最近30天收益数据' (get index performance data for the last 30 days) indicate a data retrieval operation. The argument 'index_code' is a query parameter, not an action parameter.
Documented attack patterns abuse exactly the kind of access index_perf_30 gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Xueqiu MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for index_perf_30:
{
"version": "1",
"default": "deny",
"tools": {
"index_perf_30": {}
}
}index_perf_30 is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
获取指数最近30天收益数据 Args: index_code: 指数代码. It is categorised as a Read tool in the Xueqiu MCP MCP Server, which means it retrieves data without modifying state.
Register the Xueqiu MCP server in PolicyLayer and add a rule for index_perf_30: 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 Xueqiu MCP. Nothing to install.
index_perf_30 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 index_perf_30 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 index_perf_30. 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.
index_perf_30 is provided by the Xueqiu MCP server (liqiongyu/xueqiu_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Xueqiu MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
45 Xueqiu MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.