get_minus_di
AI agents call get_minus_di to retrieve information from AlphaVantage MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name follows the naming convention of sibling technical indicator tools on the AlphaVantage server (get_atr, get_aroon, etc.), all of which query financial data. The Minus Directional Indicator (DI) is a standard technical analysis component that retrieves historical market data, not one that modifies, executes code, deletes data, or initiates financial transactions.
From the tool's definition Tool name 'get_minus_di' (Minus Directional Indicator, a technical analysis function) with no description. Sibling tools (get_ad, get_adosc, get_adx, etc.) are all read-only technical indicator retrievals from AlphaVantage financial data API.
Attacks that exploit this kind of access
get_minus_di. It is categorised as a Read tool in the AlphaVantage MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AlphaVantage MCP Server MCP server in PolicyLayer and add a rule for get_minus_di: 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 AlphaVantage MCP Server. Nothing to install.
get_minus_di 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_minus_di 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_minus_di. 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_minus_di is provided by the AlphaVantage MCP Server MCP server (lifejwang11/alphavantage-mcp). 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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