Find nearby Costco warehouses by ZIP code or city
AI agents call get_warehouse_locations to retrieve information from Mcp Costco without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries publicly available warehouse location information based on user-provided geographic parameters. It has no side effects, does not create or modify data, does not execute code or financial operations, and is consistent with Read category operations (search, fetch). The low severity reflects minimal blast radius — misuse would only return location data already publicly available.
From the tool's definition Tool name and description indicate retrieval-only operation: 'Find nearby Costco warehouses by ZIP code or city' — searches and returns warehouse location data without modifying or executing any transactions.
Attacks that exploit this kind of access
Find nearby Costco warehouses by ZIP code or city. It is categorised as a Read tool in the Mcp Costco MCP Server, which means it retrieves data without modifying state.
Register the Mcp Costco MCP server in PolicyLayer and add a rule for get_warehouse_locations: 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 Mcp Costco. Nothing to install.
get_warehouse_locations 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_warehouse_locations 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_warehouse_locations. 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_warehouse_locations is provided by the Mcp Costco MCP server (markswendsen-code/mcp-costco). 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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