Get minute-by-minute precipitation forecast for next hour
AI agents call get-minutely-forecast to retrieve information from OpenWeatherMap 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 weather forecast data without side effects. It queries the OpenWeatherMap API to return precipitation predictions. There is no capability to modify data, execute code, delete information, or interact with financial systems. The blast radius of misuse is minimal — worst case is unnecessary API calls or resource consumption. Classified as Read with low severity.
From the tool's definition Tool name is 'get-minutely-forecast' and description states 'Get minute-by-minute precipitation forecast for next hour' — clearly a data retrieval operation with no modification, deletion, execution, or financial impact.
Attacks that exploit this kind of access
Get minute-by-minute precipitation forecast for next hour. It is categorised as a Read tool in the OpenWeatherMap MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenWeatherMap MCP Server MCP server in PolicyLayer and add a rule for get-minutely-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 OpenWeatherMap MCP Server. Nothing to install.
get-minutely-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 get-minutely-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 get-minutely-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.
get-minutely-forecast is provided by the OpenWeatherMap MCP Server MCP server (robertn702/mcp-openweathermap). 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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