AI agents call stock_get_track_etf_info to retrieve information from TdxQuant 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 ETF tracking information and lists for a given index. It performs a read-only query operation with no data modification, deletion, code execution, or financial transaction capabilities. The action is informational lookup only, making it a Read category tool with low severity.
From the tool's definition Tool name 'stock_get_track_etf_info' and description '股票信息：查询跟踪该指数的 ETF 列表与跟踪信息' (Stock information: query ETF list and tracking information for the index) - the verb '查询' (query/search) indicates data retrieval only.
Documented attack patterns abuse exactly the kind of access stock_get_track_etf_info gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and TdxQuant MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for stock_get_track_etf_info:
{
"version": "1",
"default": "deny",
"tools": {
"stock_get_track_etf_info": {}
}
}stock_get_track_etf_info is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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股票信息：查询跟踪该指数的 ETF 列表与跟踪信息。. It is categorised as a Read tool in the TdxQuant MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TdxQuant MCP Server MCP server in PolicyLayer and add a rule for stock_get_track_etf_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 TdxQuant MCP Server. Nothing to install.
stock_get_track_etf_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 stock_get_track_etf_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 stock_get_track_etf_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.
stock_get_track_etf_info is provided by the TdxQuant MCP Server MCP server (lingfan/tdxquant-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from TdxQuant MCP Server, 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.
39 TdxQuant MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.