Get ETF information
AI agents call get_etf_info 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 Exchange-Traded Fund (ETF) metadata and information from the Unusual Whales API. It performs a query operation without side effects—no data is created, modified, deleted, or executed. Even though the server provides financial data, this specific tool is informational only and does not execute trades, commit financial obligations, or modify any state.
From the tool's definition Tool name 'get_etf_info' and description 'Get ETF information' indicate retrieval of data with no modification or execution capability. The verb 'get' is characteristic of read-only operations.
Attacks that exploit this kind of access
Get ETF 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_info: 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_info 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_info 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_info. 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_info 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.
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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