Get current or historical PM2.5 contour maps in KML by geographic bounding box.
AI agents call get-contour-maps-by-geographic-bounding-box-pm25 to retrieve information from AirNow 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 air quality contour map data (PM2.5 concentrations) from the AirNow API based on geographic bounding box parameters. It performs a read-only query operation with no ability to modify, delete, or execute code. The blast radius of misuse is minimal — an agent could retrieve public environmental data, but cannot cause harm through data retrieval alone.
From the tool's definition Tool name contains 'get-contour-maps' and description states 'Get current or historical PM2.5 contour maps' — retrieves data with no side effects. Returns KML formatted contour map data.
Attacks that exploit this kind of access
Get current or historical PM2.5 contour maps in KML by geographic bounding box. It is categorised as a Read tool in the AirNow MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AirNow MCP Server MCP server in PolicyLayer and add a rule for get-contour-maps-by-geographic-bounding-box-pm25: 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 AirNow MCP Server. Nothing to install.
get-contour-maps-by-geographic-bounding-box-pm25 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-contour-maps-by-geographic-bounding-box-pm25 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-contour-maps-by-geographic-bounding-box-pm25. 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-contour-maps-by-geographic-bounding-box-pm25 is provided by the AirNow MCP Server MCP server (prsantos-com/airnow-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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