Get current weather information for a location. Returns weather data including temperature, humidity, and conditions.
AI agents call getWeather 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 queries and returns existing weather data without side effects. It performs a read-only operation typical of a weather data service. No financial impact, no code execution, no data modification or deletion. The blast radius of misuse is minimal—an attacker could only retrieve weather information.
From the tool's definition Tool retrieves 'current weather information' and 'returns weather data including temperature, humidity, and conditions' — pure data retrieval with no modifications, deletions, or external state changes.
Attacks that exploit this kind of access
Get current weather information for a location. Returns weather data including temperature, humidity, and conditions. 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 getWeather: 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.
getWeather 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 getWeather 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 getWeather. 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.
getWeather 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.
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