get_current_weather
AI agents call get_current_weather 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 queries and retrieves current weather data without modifying, executing code, deleting, or affecting financial systems. It is a read-only data retrieval operation with minimal security risk; misuse would only expose public weather information already available via the OpenWeatherMap API.
From the tool's definition Tool name 'get_current_weather' and server description indicating it 'Provides access to real-time weather data' confirms this retrieves weather information with no side effects.
Attacks that exploit this kind of access
get_current_weather. 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_current_weather: 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_current_weather 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_current_weather 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_current_weather. 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_current_weather is provided by the OpenWeatherMap MCP Server MCP server (mattiaperi/openweathermap-mcp-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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