Get raw sample data for a specific monitoring site.
AI agents call aqs_sample_data_by_site to retrieve information from EPA Air Quality System (AQS) 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 historical air quality sample data from EPA monitoring sites. It performs no data modification, deletion, execution of external code, or financial transactions. The worst-case misuse would be unauthorized access to publicly available EPA data (a Read risk), not data destruction or command execution. Public air quality data has minimal sensitivity compared to personal or financial information.
From the tool's definition Tool name 'aqs_sample_data_by_site' and description 'Get raw sample data for a specific monitoring site' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
Get raw sample data for a specific monitoring site. It is categorised as a Read tool in the EPA Air Quality System (AQS) MCP Server MCP Server, which means it retrieves data without modifying state.
Register the EPA Air Quality System (AQS) MCP Server MCP server in PolicyLayer and add a rule for aqs_sample_data_by_site: 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 EPA Air Quality System (AQS) MCP Server. Nothing to install.
aqs_sample_data_by_site 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 aqs_sample_data_by_site 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 aqs_sample_data_by_site. 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.
aqs_sample_data_by_site is provided by the EPA Air Quality System (AQS) MCP Server MCP server (tyson-swetnam/aqs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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