AI agents call stock_sy_hy_em 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 queries and retrieves historical or current industry goodwill statistics from a public Chinese financial data source. It has no side effects, does not modify data, does not execute code or commands, and does not involve financial transactions. The blast radius of misuse is minimal—an agent could only retrieve unwanted data, not alter it or cause financial harm.
From the tool's definition Tool name and description indicate this retrieves goodwill (商誉) data by industry (行业) from 东方财富网's data center. The description contains no verbs indicating modification, deletion, or execution—only data fetching from a financial data provider.
Documented attack patterns abuse exactly the kind of access stock_sy_hy_em 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_sy_hy_em:
{
"version": "1",
"default": "deny",
"tools": {
"stock_sy_hy_em": {}
}
}stock_sy_hy_em 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 东方财富网-数据中心-特色数据-商誉-行业商誉. 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_sy_hy_em: 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_sy_hy_em 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_sy_hy_em 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_sy_hy_em. 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_sy_hy_em 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.