Calculate Relative Strength Index (RSI) for a symbol
AI agents call calculate_rsi to retrieve information from GitHub and AlphaVantage MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only financial calculation on historical market data. It retrieves stock data and computes a technical analysis metric (RSI), which is a passive analytical operation. No data is modified, no orders are placed, no accounts are affected, and no irreversible actions occur.
From the tool's definition The tool name is "calculate_rsi" and the description states it "Calculate[s] Relative Strength Index (RSI) for a symbol". RSI is a technical analysis indicator that analyzes historical price data to produce a momentum metric.
Attacks that exploit this kind of access
Calculate Relative Strength Index (RSI) for a symbol. It is categorised as a Read tool in the GitHub and AlphaVantage MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GitHub and AlphaVantage MCP Server MCP server in PolicyLayer and add a rule for calculate_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 GitHub and AlphaVantage MCP Server. Nothing to install.
calculate_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 calculate_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 calculate_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.
calculate_rsi is provided by the GitHub and AlphaVantage MCP Server MCP server (uditdev21/mcp-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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