Search products across all Underground shops by keyword. Try:
AI agents call search-underground to retrieve information from Underground Cultural District 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 or queries marketplace product data based on keywords. It has no side effects—it does not create, modify, delete, or execute operations. However, severity is elevated to 'medium' rather than 'low' because the Underground marketplace appears to be a commercial platform integrated with financial transactions (Stripe mentioned in server description), and search results could potentially be…
From the tool's definition Tool performs a search operation ('Search products across all Underground shops by keyword'), which retrieves data without modifying it. The verb 'search' and the read-only nature of querying a marketplace catalog align with the Read category.
Attacks that exploit this kind of access
Search products across all Underground shops by keyword. Try:. It is categorised as a Read tool in the Underground Cultural District MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Underground Cultural District MCP Server MCP server in PolicyLayer and add a rule for search-underground: 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 Underground Cultural District MCP Server. Nothing to install.
search-underground 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 search-underground 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 search-underground. 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.
search-underground is provided by the Underground Cultural District MCP Server MCP server (lisamaraventano-spine/mcp-server). 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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