Get astronomy data for a location and date: sunrise, sunset, moonrise, moonset, moon phase, and moon illumination percentage.
AI agents call get_astronomy to retrieve information from WeatherAPI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only query of astronomical information. It retrieves data without creating, modifying, deleting, executing code, or committing any financial transactions. The data returned is informational only. Misuse poses minimal risk—an AI could retrieve excessive astronomy data but cannot harm systems or data integrity.
From the tool's definition Tool retrieves astronomy data (sunrise, sunset, moonrise, moonset, moon phase, moon illumination) for a location and date. The verb 'Get' and description indicate a query operation with no modification or side effects.
Attacks that exploit this kind of access
Get astronomy data for a location and date: sunrise, sunset, moonrise, moonset, moon phase, and moon illumination percentage. It is categorised as a Read tool in the WeatherAPI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the WeatherAPI MCP Server MCP server in PolicyLayer and add a rule for get_astronomy: 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 WeatherAPI MCP Server. Nothing to install.
get_astronomy 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_astronomy 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_astronomy. 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_astronomy is provided by the WeatherAPI MCP Server MCP server (weatherapicom/weatherapi-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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