get_rsi
AI agents call get_rsi 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.
RSI is a standard technical indicator calculated from historical price data. The tool retrieves pre-calculated or computed metric values with no side effects. No data modification, code execution, or financial transactions occur. Confidence is slightly reduced due to empty description, but sibling context and naming pattern strongly indicate read-only operation.
From the tool's definition Tool name 'get_rsi' (Relative Strength Index) indicates retrieval of a technical analysis indicator. Sibling tools like 'get_bollinger_bands', 'get_macd', and 'get_moving_averages' are all read-only analytics functions.
Attacks that exploit this kind of access
get_rsi. 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_rsi: 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_rsi 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_rsi 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_rsi. 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_rsi 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.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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