AI agents call search_stocks to retrieve information from Tushare MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool searches and retrieves stock information from the Tushare financial database. It performs a read-only query operation with no side effects—it does not create, modify, delete, or execute code. The blast radius of misuse is minimal, as incorrect queries simply return empty or irrelevant results without damaging data or causing financial transactions.
From the tool's definition Tool name 'search_stocks' with description '搜索股票' (search stocks) indicates a query operation that retrieves stock information without modifying data. The context shows this is part of a Tushare API server for querying stock data.
Documented attack patterns abuse exactly the kind of access search_stocks gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Tushare MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for search_stocks:
{
"version": "1",
"default": "deny",
"tools": {
"search_stocks": {}
}
}search_stocks is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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搜索股票. It is categorised as a Read tool in the Tushare MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Tushare MCP Server MCP server in PolicyLayer and add a rule for search_stocks: 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 Tushare MCP Server. Nothing to install.
search_stocks 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 search_stocks 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 search_stocks. 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.
search_stocks is provided by the Tushare MCP Server MCP server (zhewenzhang/tushare_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 66 Tushare MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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66 Tushare MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.