AI agents call get_market_snapshot 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 empty description, the naming pattern ('get_*') and position among query-only sibling tools strongly suggest this retrieves market data without side effects. No modification, execution, or financial transaction occurs. Low severity because market data queries have minimal blast radius—they inform decisions but cause no direct harm if misused.
From the tool's definition Tool name 'get_market_snapshot' indicates retrieval of current market data snapshot. Server context shows query capabilities for 'real-time market data' alongside sibling tools like 'get_cur_kline', 'get_account_list', 'get_asset_list' which are all Read…
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 Futu Stock 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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get_market_snapshot. 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_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 Futu Stock 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 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.