Get weather forecast for a location. Returns weather forecast for the next few days.
AI agents call getWeatherForecast to retrieve information from Weather API 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 and returns weather data without any side effects, state changes, or irreversible actions. It is a pure query operation against a weather data service. The blast radius of misuse is minimal—an agent could only retrieve forecast data, which poses no risk to systems, data integrity, or financial assets.
From the tool's definition Tool is named 'getWeatherForecast' and described as retrieving 'weather forecast for the next few days' with no mention of modification, deletion, execution, or financial operations.
Attacks that exploit this kind of access
Get weather forecast for a location. Returns weather forecast for the next few days. It is categorised as a Read tool in the Weather API MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Weather API MCP Server MCP server in PolicyLayer and add a rule for getWeatherForecast: 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 API MCP Server. Nothing to install.
getWeatherForecast 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 getWeatherForecast 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 getWeatherForecast. 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.
getWeatherForecast is provided by the Weather API MCP Server MCP server (yoyooyooo/mcp-weather-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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