Get previously saved weather data for a location.
AI agents call get_weather_history to retrieve information from Render without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads historical weather information from storage without creating, modifying, deleting, or executing any operations. It is a straightforward data retrieval operation, presenting minimal risk. The low severity reflects that weather history is non-sensitive, non-destructive information with no blast radius if misused by an AI agent.
From the tool's definition Tool retrieves previously saved weather data for a location—a query operation with no modification or side effects. The word 'Get' in the name and 'previously saved' in the description indicate pure data retrieval.
Documented attack patterns abuse exactly the kind of access get_weather_history gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Render, and nothing reaches the server without passing your rules. This is the rule we recommend for get_weather_history:
{
"version": "1",
"default": "deny",
"tools": {
"get_weather_history": {}
}
}get_weather_history is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get previously saved weather data for a location. It is categorised as a Read tool in the Render MCP Server, which means it retrieves data without modifying state.
Register the Render MCP server in PolicyLayer and add a rule for get_weather_history: 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 Render. Nothing to install.
get_weather_history 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_history 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_history. 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_history is provided by the Render MCP server (smartaces/render_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Render, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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7 Render tools catalogued and risk-classified — across an index of 43,000+ MCP servers.