AI agents call get_stock_price to retrieve information from Stock-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves real-time stock price information from the Chinese stock exchanges without any ability to execute trades, modify data, or perform destructive actions. It is a read-only query operation with minimal risk even if misused by an AI agent—the worst outcome would be accessing publicly available market information.
From the tool's definition Tool name 'get_stock_price' and description '获取个股实时价格' (get individual stock real-time price) indicate retrieval of current market data with no modification capability.
Attacks that exploit this kind of access
获取个股实时价格. It is categorised as a Read tool in the Stock-MCP MCP Server, which means it retrieves data without modifying state.
Register the Stock- MCP server in PolicyLayer and add a rule for get_stock_price: 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 Stock-MCP. Nothing to install.
get_stock_price 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 get_stock_price 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 get_stock_price. 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.
get_stock_price is provided by the Stock- MCP server (nomi982/stock-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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