Retrieve current METAR (Meteorological Aerodrome Report) weather observations for specified airports. Returns raw METAR string, flight category (VFR/MVFR/IFR/LIFR), temperature, wind, and visibility. Optionally include TAF (Terminal Aerodrome Forecast) for weather predictions. Supports 1-10 ICAO ...
AI agents call getAviationWeather to retrieve information from SimBrief Flight Planning MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool purely retrieves and queries existing weather data from aviation sources. It performs no data modification, code execution, or destructive operations. The worst-case misuse (providing inaccurate weather data to influence flight planning decisions) carries informational risk but no direct system compromise or financial obligation.
From the tool's definition Tool description states it 'Retrieve[s]' METAR weather observations and optionally TAF forecasts. Returns data (raw METAR string, flight category, temperature, wind, visibility) with no modification, deletion, or execution capability.
Attacks that exploit this kind of access
Retrieve current METAR (Meteorological Aerodrome Report) weather observations for specified airports. Returns raw METAR string, flight category (VFR/MVFR/IFR/LIFR), temperature, wind, and visibility. Optionally include TAF (Terminal Aerodrome Forecast) for weather predictions. Supports 1-10 ICAO codes per request. ICAO codes are case-insensitive. Use this when you need real-time aviation weather data. It is categorised as a Read tool in the SimBrief Flight Planning MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SimBrief Flight Planning MCP Server MCP server in PolicyLayer and add a rule for getAviationWeather: 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 SimBrief Flight Planning MCP Server. Nothing to install.
getAviationWeather 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 getAviationWeather 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 getAviationWeather. 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.
getAviationWeather is provided by the SimBrief Flight Planning MCP Server MCP server (leonchike/simbrief-mcp). 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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