AI agents call aviation_weather to retrieve information from CorteX402 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears designed to retrieve weather data for aviation purposes. Based on the server's stated model of 'pay-per-call x402 data products' that settle on-chain, this is a data retrieval service with no side effects.
From the tool's definition Tool name is 'aviation_weather' and server description lists it as a data product for 'aviation weather' alongside other query-type services like 'mortgage rates', 'property dossier', and 'wallet balance'.
Attacks that exploit this kind of access
aviation_weather. It is categorised as a Read tool in the CorteX402 MCP Server, which means it retrieves data without modifying state.
Register the CorteX402 MCP server in PolicyLayer and add a rule for aviation_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 CorteX402. Nothing to install.
aviation_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 aviation_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 aviation_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.
aviation_weather is provided by the CorteX402 MCP server (ooak21/cortex402-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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