AI agents call get_market_snapshot to retrieve information from 富途 MCP 服务器 (Futu MCP Server) without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
While this is a Read operation (retrieves data with no side effects), the severity is rated high because: (1) it accesses real-time financial market data that could be sensitive or valuable; (2) in the context of the sibling tools (place_order, modify_order, get_positions), an AI agent with access to real-time market snapshots combined with trading capabilities could make informed financial decisions that could…
From the tool's definition Tool name 'get_market_snapshot' and description '获取股票快照数据，包含实时价格、交易量、市值等详细信息' (retrieves stock snapshot data including real-time price, trading volume, market cap and detailed information).
Documented attack patterns abuse exactly the kind of access get_market_snapshot gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and 富途 MCP 服务器 (Futu MCP Server), and nothing reaches the server without passing your rules. This is the rule we recommend for get_market_snapshot:
{
"version": "1",
"default": "deny",
"tools": {
"get_market_snapshot": {}
}
}get_market_snapshot is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取股票快照数据，包含实时价格、交易量、市值等详细信息. It is categorised as a Read tool in the 富途 MCP 服务器 (Futu MCP Server) MCP Server, which means it retrieves data without modifying state.
Register the 富途 MCP 服务器 (Futu MCP Server) MCP server in PolicyLayer and add a rule for get_market_snapshot: 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 富途 MCP 服务器 (Futu MCP Server). Nothing to install.
get_market_snapshot 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_market_snapshot 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_market_snapshot. 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_market_snapshot is provided by the 富途 MCP 服务器 (Futu MCP Server) MCP server (shuchaang/futu-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from 富途 MCP 服务器 (Futu 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.
10 富途 MCP 服务器 (Futu MCP Server) tools catalogued and risk-classified — across an index of 43,000+ MCP servers.