Get historical OHLCV (Open, High, Low, Close, Volume) data for a stock.
AI agents call get_historical_data to retrieve information from MCP Trading Quantitative Analysis Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool purely reads and returns historical price and volume information. It has no capability to modify data, execute trades, delete records, or trigger financial transactions. The data retrieved is historical and publicly available market information. Misuse would result in informational advantage only, not direct financial loss or system damage. Therefore, it is categorized as Read with low severity.
From the tool's definition Tool name 'get_historical_data' and description 'Get historical OHLCV (Open, High, Low, Close, Volume) data for a stock' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get historical OHLCV (Open, High, Low, Close, Volume) data for a stock. It is categorised as a Read tool in the MCP Trading Quantitative Analysis Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Trading Quantitative Analysis Server MCP server in PolicyLayer and add a rule for get_historical_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 MCP Trading Quantitative Analysis Server. Nothing to install.
get_historical_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 get_historical_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 get_historical_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.
get_historical_data is provided by the MCP Trading Quantitative Analysis Server MCP server (j840425/mcp_trading). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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