Get real-time weather data for a given city.
AI agents call get_weather to retrieve information from MCP Tool 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 information from OpenWeatherMap API based on a city parameter. It performs a query operation with no side effects—no data is created, modified, deleted, or financial transactions are initiated. The blast radius of misuse is minimal, as an agent could only retrieve unwanted weather data, which poses no risk to systems or data integrity.
From the tool's definition Tool name 'get_weather' and description 'Get real-time weather data for a given city' indicate retrieval of existing data with no modifications, deletions, or external state changes.
Attacks that exploit this kind of access
Get real-time weather data for a given city. It is categorised as a Read tool in the MCP Tool Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Tool Server MCP server in PolicyLayer and add a rule for get_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 MCP Tool Server. Nothing to install.
get_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_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_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_weather is provided by the MCP Tool Server MCP server (sushma9903/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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