Search USGS earthquake database with custom parameters
AI agents call search-usgs-earthquakes to retrieve information from Comprehensive Earthquake Monitoring MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves earthquake data from a public USGS database based on search parameters. This is a read-only operation with no side effects, no code execution, and no data modification or deletion. The blast radius of misuse is minimal—an AI could return incorrect or irrelevant earthquake data, but cannot alter data, delete records, or trigger external operations beyond standard queries.
From the tool's definition Tool name contains 'search' and description states 'Search USGS earthquake database with custom parameters' — this is a query operation that retrieves data from a public earthquake database without modifying, deleting, or executing arbitrary operations.
Attacks that exploit this kind of access
Search USGS earthquake database with custom parameters. It is categorised as a Read tool in the Comprehensive Earthquake Monitoring MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Comprehensive Earthquake Monitoring MCP Server MCP server in PolicyLayer and add a rule for search-usgs-earthquakes: 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 Comprehensive Earthquake Monitoring MCP Server. Nothing to install.
search-usgs-earthquakes 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-usgs-earthquakes 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-usgs-earthquakes. 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-usgs-earthquakes is provided by the Comprehensive Earthquake Monitoring MCP Server MCP server (ruby0606/mcp-earthquake-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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