AI agents call sector_get_relation 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 relational data about which sectors or themes a stock belongs to. It is a read-only query operation that does not create, modify, delete, execute code, or involve financial transactions. The blast radius of misuse is minimal—an AI agent could only retrieve sector classification information, which is non-sensitive market metadata.
From the tool's definition Tool name 'sector_get_relation' and description '板块数据：查询单股所属板块/主题关系' (sector data: query individual stock's sector/theme relationships). The verb '查询' (query) indicates data retrieval with no modification or side effects.
Documented attack patterns abuse exactly the kind of access sector_get_relation 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 sector_get_relation:
{
"version": "1",
"default": "deny",
"tools": {
"sector_get_relation": {}
}
}sector_get_relation is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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板块数据：查询单股所属板块/主题关系。. 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 sector_get_relation: 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.
sector_get_relation 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 sector_get_relation 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 sector_get_relation. 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.
sector_get_relation 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.