Retrieves and formats the latest quote for a stock including bid/ask spread analysis.
AI agents call get_stock_quote_tool to retrieve information from Alpaca MCP Gold Standard without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries market data (stock quotes and bid/ask spreads) without creating, modifying, deleting, executing code, or moving funds. It is a passive read operation with no capacity to alter state or cause harm beyond potentially informing trading decisions.
From the tool's definition Tool name 'get_stock_quote_tool' and description 'Retrieves and formats the latest quote for a stock including bid/ask spread analysis' indicate read-only data retrieval with no side effects.
Attacks that exploit this kind of access
Retrieves and formats the latest quote for a stock including bid/ask spread analysis. It is categorised as a Read tool in the Alpaca MCP Gold Standard MCP Server, which means it retrieves data without modifying state.
Register the Alpaca MCP Gold Standard MCP server in PolicyLayer and add a rule for get_stock_quote_tool: 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 Alpaca MCP Gold Standard. Nothing to install.
get_stock_quote_tool 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_quote_tool 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_quote_tool. 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_quote_tool is provided by the Alpaca MCP Gold Standard MCP server (joravetz/alpaca-mcp-gold). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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