Query historical data for Futures.
AI agents call query_futures_data to retrieve information from Stock Data MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical futures market data without creating, modifying, or deleting any data. It poses minimal risk as read operations on financial data have no direct destructive or transactional impact. Severity is low because misuse would only expose information already public in market data sources, not enable unauthorized trades or financial transfers.
From the tool's definition Tool name 'query_futures_data' and description 'Query historical data for Futures' indicate a data retrieval operation. The verb 'query' combined with 'historical data' (past information) confirms read-only functionality with no mutations or side effects.
Attacks that exploit this kind of access
Query historical data for Futures. It is categorised as a Read tool in the Stock Data MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Stock Data MCP Server MCP server in PolicyLayer and add a rule for query_futures_data: 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 Data MCP Server. Nothing to install.
query_futures_data 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 query_futures_data 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 query_futures_data. 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.
query_futures_data is provided by the Stock Data MCP Server MCP server (xj-bear/stockdata-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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