Get weather forecast data for coordinates using Open-Meteo API. Supports hourly and daily data with various weather variables.
AI agents call weather_forecast to retrieve information from Open Meteo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool is purely informational, querying and returning weather forecast data without creating, modifying, or deleting any resources. The severity is low because misuse cannot cause operational, financial, or data integrity damage—worst case is retrieving incorrect or unnecessary weather data.
From the tool's definition Tool 'weather_forecast' retrieves forecast data from Open-Meteo API with no modification or destructive capabilities. Description states 'Get weather forecast data' - a query operation. No side effects, state changes, or irreversible actions are possible.
Attacks that exploit this kind of access
Get weather forecast data for coordinates using Open-Meteo API. Supports hourly and daily data with various weather variables. It is categorised as a Read tool in the Open Meteo MCP Server, which means it retrieves data without modifying state.
Register the Open Meteo MCP server in PolicyLayer and add a rule for weather_forecast: 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 Open Meteo. Nothing to install.
weather_forecast 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 weather_forecast 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 weather_forecast. 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.
weather_forecast is provided by the Open Meteo MCP server (windsornguyen/open-meteo-mcp). 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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