get_moving_averages
AI agents call get_moving_averages to retrieve information from MCP YFinance Stock Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves pre-calculated or computed moving average technical indicators from stock data. It has no side effects, does not execute trades, does not modify data, and cannot cause financial transactions. The description is empty, which slightly lowers confidence, but the naming convention and context of sibling tools all being analytical queries strongly indicate this is a read-only data retrieval function.
From the tool's definition Tool name 'get_moving_averages' indicates a retrieval operation for technical analysis metrics. Sibling tools like 'get_historical_stock_prices', 'get_bollinger_bands', 'get_macd', and 'get_rsi' are all read-only data retrieval functions.
Attacks that exploit this kind of access
get_moving_averages. It is categorised as a Read tool in the MCP YFinance Stock Server MCP Server, which means it retrieves data without modifying state.
Register the MCP YFinance Stock Server MCP server in PolicyLayer and add a rule for get_moving_averages: 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 YFinance Stock Server. Nothing to install.
get_moving_averages 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_moving_averages 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_moving_averages. 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_moving_averages is provided by the MCP YFinance Stock Server MCP server (sauniket/mcp-yfinance-server). 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.
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