Get marine weather forecasts including waves and ocean conditions
AI agents call get_marine_weather to retrieve information from Open Meteo MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves marine weather forecast data without modifying, executing operations, or causing irreversible changes. It is purely informational, similar to sibling tools like get_current_weather and get_weather_forecast. The blast radius of misuse is minimal—an AI agent could only retrieve weather data, not cause harm through financial, destructive, or system-level operations.
From the tool's definition Tool name 'get_marine_weather' and description 'Get marine weather forecasts including waves and ocean conditions' indicate data retrieval only.
Attacks that exploit this kind of access
Get marine weather forecasts including waves and ocean conditions. It is categorised as a Read tool in the Open Meteo MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Open Meteo MCP Server MCP server in PolicyLayer and add a rule for get_marine_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 Open Meteo MCP Server. Nothing to install.
get_marine_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_marine_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_marine_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_marine_weather is provided by the Open Meteo MCP Server MCP server (sarthakray26/open-meteo-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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