AI agents call stock_hk_gxl_lg to retrieve information from China Stock 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 financial market data (dividend yields for Hang Seng Index stocks) without modifying, executing commands, or causing irreversible changes. It is purely informational access to public stock market data. The severity is low because misuse would only result in data exfiltration of publicly available market information, with no operational or financial impact on systems or accounts.
From the tool's definition Tool name and description indicate a retrieval operation: 'Get 乐咕乐股-股息率-恒生指数股息率' (Get Legu Stock - Dividend Yield - Hang Seng Index Dividend Yield).
Documented attack patterns abuse exactly the kind of access stock_hk_gxl_lg gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and China Stock MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for stock_hk_gxl_lg:
{
"version": "1",
"default": "deny",
"tools": {
"stock_hk_gxl_lg": {}
}
}stock_hk_gxl_lg 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.
Get 乐咕乐股-股息率-恒生指数股息率. It is categorised as a Read tool in the China Stock MCP Server MCP Server, which means it retrieves data without modifying state.
Register the China Stock MCP Server MCP server in PolicyLayer and add a rule for stock_hk_gxl_lg: 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 China Stock MCP Server. Nothing to install.
stock_hk_gxl_lg 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_hk_gxl_lg 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_hk_gxl_lg. 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_hk_gxl_lg is provided by the China Stock MCP Server MCP server (peikuo/china-stock-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from China Stock 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.
351 China Stock MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.