AI agents call get_stock_quote to retrieve information from Futu 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 naming convention and context of sibling tools strongly suggest this retrieves real-time stock quotation data without modifying state. No write, execution, or financial transaction occurs—it only fetches market information. Confidence is slightly reduced due to missing description, but the pattern is clear.
From the tool's definition Tool name 'get_stock_quote' indicates retrieval of stock price/market data with no description provided. Sibling tools like 'get_cur_kline', 'get_asset_list', and 'get_account_list' are all Read operations, establishing context that query tools on this server…
Documented attack patterns abuse exactly the kind of access get_stock_quote gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Futu Stock MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_stock_quote:
{
"version": "1",
"default": "deny",
"tools": {
"get_stock_quote": {}
}
}get_stock_quote is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_stock_quote. It is categorised as a Read tool in the Futu Stock MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Futu Stock MCP Server MCP server in PolicyLayer and add a rule for get_stock_quote: 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 Futu Stock MCP Server. Nothing to install.
get_stock_quote 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_quote 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_quote. 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_quote is provided by the Futu Stock MCP Server MCP server (shuizhengqi1/futu-stock-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 44 Futu Stock MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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44 Futu Stock MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.