AI agents call stock_dzjy_mrmx 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.
Despite the empty description, the tool's name pattern and server context strongly suggest this retrieves stock market data (likely daily trading data based on the 'mrmx' suffix which may mean daily/明日 metrics). All sibling tools on this server are Read operations (pb, net_asset_statistics, various indicators, etc.).
From the tool's definition Tool name 'stock_dzjy_mrmx' follows the naming pattern of sibling tools (stock_a_*) which are all data retrieval functions. No description provided, but context indicates this is part of a Chinese stock market data API (AKShare) that fetches financial data.
Documented attack patterns abuse exactly the kind of access stock_dzjy_mrmx 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_dzjy_mrmx:
{
"version": "1",
"default": "deny",
"tools": {
"stock_dzjy_mrmx": {}
}
}stock_dzjy_mrmx is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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stock_dzjy_mrmx. 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_dzjy_mrmx: 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_dzjy_mrmx 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_dzjy_mrmx 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_dzjy_mrmx. 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_dzjy_mrmx 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.