get_stock_history
AI agents call get_stock_history 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 stock market data without modifying, deleting, or executing external operations. It is a passive data retrieval function consistent with the server's read-only data provision model. The empty description reduces confidence slightly, but the tool name and server context strongly indicate a read operation. No financial transactions, code execution, or data modification occurs.
From the tool's definition Tool name 'get_stock_history' suggests retrieval of historical stock data. Server description explicitly lists 'historical data' as a read-only capability provided by the MCP server.
Attacks that exploit this kind of access
get_stock_history. 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 get_stock_history: 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.
get_stock_history 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_stock_history 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_stock_history. 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_stock_history is provided by the Stock Data MCP Server MCP server (joaovitor2763/mcptrial-stockfinder). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →