Get the current Air Quality Index (AQI) and key pollutant levels for a city.
AI agents call get_aqi to retrieve information from Weather mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool fetches and returns real-time environmental data (AQI and pollutant levels) for a specified city. It performs a read-only query against the OpenWeatherMap API with no ability to modify, delete, or execute external operations. The operation is informational and has no blast radius if misused by an AI agent—at worst, it retrieves data the user did not request.
From the tool's definition Tool name 'get_aqi' and description 'Get the current Air Quality Index (AQI) and key pollutant levels for a city' indicate a data retrieval operation with no side effects.
Attacks that exploit this kind of access
Get the current Air Quality Index (AQI) and key pollutant levels for a city. It is categorised as a Read tool in the Weather mcp MCP Server, which means it retrieves data without modifying state.
Register the Weather MCP server in PolicyLayer and add a rule for get_aqi: 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 Weather mcp. Nothing to install.
get_aqi 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_aqi 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_aqi. 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_aqi is provided by the Weather MCP server (tarun-004/weather-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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