Fetches intraday time series data for a stock symbol.
AI agents call coreStock_intraday to retrieve information from MCP Avantage without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves historical and current stock price data for analysis purposes only. It has no side effects—it does not execute trades, modify positions, transfer funds, or alter any data. While it provides financial market information, accessing this data alone poses minimal risk compared to tools that could execute transactions or modify financial accounts.
From the tool's definition Tool name 'coreStock_intraday' and description 'Fetches intraday time series data for a stock symbol' indicate data retrieval with no modification, deletion, or execution of trades/financial transactions.
Attacks that exploit this kind of access
Fetches intraday time series data for a stock symbol. It is categorised as a Read tool in the MCP Avantage MCP Server, which means it retrieves data without modifying state.
Register the MCP Avantage MCP server in PolicyLayer and add a rule for coreStock_intraday: 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 Avantage. Nothing to install.
coreStock_intraday 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 coreStock_intraday 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 coreStock_intraday. 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.
coreStock_intraday is provided by the MCP Avantage MCP server (missionsquad/mcp-avantage). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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