get-historical-options · Stocks MCP Server MCP

WHAT IT DOES

What get-historical-options does on Stocks MCP Server

AI agents call get-historical-options to retrieve information from Stocks MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get-historical-options needs a policy

This tool retrieves historical financial data about options chains. While it involves financial data, it performs only read operations—querying and returning existing market information without modifying, deleting, or executing transactions. The misuse risk is low as the tool cannot execute trades, move money, or alter data.

From the tool's definition Tool name 'get-historical-options' and description 'get historical options chain data for a stock with sorting capabilities' indicate data retrieval operations.

Attacks that exploit this kind of access

Questions about get-historical-options

What does the get-historical-options tool do? +

get historical options chain data for a stock with sorting capabilities. It is categorised as a Read tool in the Stocks MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-historical-options? +

Register the Stocks MCP Server MCP server in PolicyLayer and add a rule for get-historical-options: 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 Stocks MCP Server. Nothing to install.

What risk level is get-historical-options? +

get-historical-options is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get-historical-options? +

Yes. Add a rate_limit block to the get-historical-options 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.

How do I block get-historical-options completely? +

Set action: deny in the PolicyLayer policy for get-historical-options. 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.

What MCP server provides get-historical-options? +

get-historical-options is provided by the Stocks MCP Server MCP server (maharshi2708/stocks_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.