get_weekly_adjusted
AI agents call get_weekly_adjusted 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 retrieves adjusted weekly stock price or technical indicator data with no capability to modify, delete, or execute operations. While the description is empty, the systematic naming convention across all sibling tools (all beginning with 'get_') and the nature of AlphaVantage as a read-only financial data service confirm this is a data retrieval function.
From the tool's definition Tool name 'get_weekly_adjusted' follows the naming pattern of sibling tools (get_ad, get_adosc, get_atr, etc.) which are all data retrieval functions from AlphaVantage's financial API.
Attacks that exploit this kind of access
get_weekly_adjusted. 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_weekly_adjusted: 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_weekly_adjusted 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_weekly_adjusted 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_weekly_adjusted. 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_weekly_adjusted 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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