get-stock-data · Stock MCP: Risk & Policy

WHAT IT DOES

What get-stock-data does on Stock

AI agents call get-stock-data to retrieve information from Stock 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-stock-data needs a policy

This tool retrieves stock information without modifying, executing external operations, or committing financial transactions. Despite the empty description lowering confidence slightly, the context of an Alpha Vantage API wrapper server and the naming pattern strongly suggest a read-only query operation.

From the tool's definition Tool name is 'get-stock-data' on a stock information query server (Alpha Vantage API). The sibling tools include 'get-daily-stock-data' and 'get-stock-alerts', which are all query operations.

Attacks that exploit this kind of access

Questions about get-stock-data

What does the get-stock-data tool do? +

get-stock-data. It is categorised as a Read tool in the Stock MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-stock-data? +

Register the Stock MCP server in PolicyLayer and add a rule for get-stock-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. Nothing to install.

What risk level is get-stock-data? +

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

Can I rate-limit get-stock-data? +

Yes. Add a rate_limit block to the get-stock-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.

How do I block get-stock-data completely? +

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

What MCP server provides get-stock-data? +

get-stock-data is provided by the Stock MCP server (qubaomingg/stock-analysis-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.