Get ETF inflow & outflow data
AI agents call get_etf_in_outflow 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 financial market data (ETF inflow/outflow metrics) without modifying, deleting, or executing operations. It presents no side effects and aligns with the Read category definition: 'retrieves or queries data; no side effects.' While the data is financial in nature, the tool itself does not move money, commit financial obligations, or perform transactions—it only provides market…
From the tool's definition The tool name 'get_etf_in_outflow' and description 'Get ETF inflow & outflow data' indicate data retrieval operations. The verb 'get' and lack of any modification language confirm this is a query-only tool.
Attacks that exploit this kind of access
Get ETF inflow & outflow data. 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_in_outflow: 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_in_outflow 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_in_outflow 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_in_outflow. 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_in_outflow 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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