Refresh weather data for a city (called from UI).
AI agents call refresh_weather to retrieve information from Aareguru MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves or refreshes weather data without creating, modifying, deleting, or executing side effects. It is a query/fetch operation that updates cached data from an authoritative source. The low severity reflects that misuse would only retrieve irrelevant or stale weather information, with no destructive or financial impact on the Aare river swimming data system.
From the tool's definition Tool name 'refresh_weather' and description 'Refresh weather data for a city (called from UI)' indicates fetching or retrieving updated weather information. No modification, deletion, or execution of external operations occurs.
Attacks that exploit this kind of access
Refresh weather data for a city (called from UI). It is categorised as a Read tool in the Aareguru MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Aareguru MCP Server MCP server in PolicyLayer and add a rule for refresh_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 Aareguru MCP Server. Nothing to install.
refresh_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 refresh_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 refresh_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.
refresh_weather is provided by the Aareguru MCP Server MCP server (schlpbch/aareguru-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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