Get ETF holdings information
AI agents call get_etf_holdings to retrieve information from Unusual Whales MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries publicly available ETF holdings data. It does not create, modify, delete, or execute any operations. The blast radius of misuse is minimal—an agent could only retrieve information already publicly available through financial data providers. No financial transactions, data modifications, or external executions occur.
From the tool's definition Tool name 'get_etf_holdings' and description 'Get ETF holdings information' indicate a retrieval operation.
Attacks that exploit this kind of access
Get ETF holdings information. It is categorised as a Read tool in the Unusual Whales MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Unusual Whales MCP Server MCP server in PolicyLayer and add a rule for get_etf_holdings: 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 Unusual Whales MCP Server. Nothing to install.
get_etf_holdings 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_etf_holdings 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_etf_holdings. 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_etf_holdings is provided by the Unusual Whales MCP Server MCP server (phields/unusualwhales-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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