fetch_uv_index

Fetches the current UV index for a given latitude and longitude.

SERVERNitrostack SOURCEnitrocloudofficial/nitrostack

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nitrostack/fetch-uv-index.md

WHAT IT DOES

What fetch_uv_index does on Nitrostack

AI agents call fetch_uv_index to retrieve information from Nitrostack without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why fetch_uv_index is rated Low

Tool retrieves weather data with no side effects or modifications to any system state.

From the tool's definition Fetches the current UV index for given latitude and longitude.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs fetch_uv_index safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Nitrostack, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For fetch_uv_index, this is the rule to start with:

fetch_uv_index Allowed

fetch_uv_index is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "fetch_uv_index": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Nitrostack, apply this rule, and every fetch_uv_index call is checked against it from then on.

FAQ

Questions about fetch_uv_index

What does the fetch_uv_index tool do? +

Fetches the current UV index for a given latitude and longitude. It is categorised as a Read tool in the Nitrostack MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on fetch_uv_index? +

Register the Nitrostack MCP server in PolicyLayer and add a rule for fetch_uv_index: 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 Nitrostack. Nothing to install.

What risk level is fetch_uv_index? +

fetch_uv_index is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit fetch_uv_index? +

Yes. Add a rate_limit block to the fetch_uv_index 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.

How do I block fetch_uv_index completely? +

Set action: deny in the PolicyLayer policy for fetch_uv_index. 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.

What MCP server provides fetch_uv_index? +

fetch_uv_index is provided by the Nitrostack MCP server (nitrocloudofficial/nitrostack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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