get_weather_forecast_nws

SERVERDelx MCP Server SOURCEdelx-mcp-server

Low RISK CLASS

Category Read

Parameters 42 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-server/get-weather-forecast-nws.md

WHAT IT DOES

What get_weather_forecast_nws does on Delx MCP Server

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

Parameter	Type	Required	Description
`periods`	integer	—	Number of forecast periods to return.
`timeout`	integer	—	Upstream timeout in seconds.
`latitude`	number	Yes	Latitude in decimal degrees; NWS coverage is limited to the United States.
`longitude`	number	Yes	Longitude in decimal degrees; NWS coverage is limited to the United States.

Parameters from the server's own tool schema.

RISK

Why get_weather_forecast_nws is rated Low

The tool queries weather data from a public, read-only API. There are no destructive, financial, or execution capabilities involved. The bounded scope and explicit rejection of arbitrary URLs confirm it is a simple data retrieval operation with minimal risk of misuse.

From the tool's definition Tool description explicitly states it 'Return[s] a bounded US weather forecast' and 'returns normalized periods' — pure data retrieval with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_weather_forecast_nws safely

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

get_weather_forecast_nws Allowed

get_weather_forecast_nws 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": {
    "get_weather_forecast_nws": {}
  }
}

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

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

FAQ

Questions about get_weather_forecast_nws

What does the get_weather_forecast_nws tool do? +

Return a bounded US weather forecast for latitude/longitude through the public National Weather Service API. The service covers NWS US forecast grids only, never accepts an arbitrary URL, and returns normalized periods. It is categorised as a Read tool in the Delx MCP Server MCP Server, which means it retrieves data without modifying state.

What parameters does get_weather_forecast_nws accept? +

get_weather_forecast_nws accepts 4 parameters: periods, timeout, latitude, longitude. Required: latitude, longitude. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on get_weather_forecast_nws? +

Register the Delx MCP Server MCP server in PolicyLayer and add a rule for get_weather_forecast_nws: 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 Delx MCP Server. Nothing to install.

What risk level is get_weather_forecast_nws? +

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

Can I rate-limit get_weather_forecast_nws? +

Yes. Add a rate_limit block to the get_weather_forecast_nws 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 get_weather_forecast_nws completely? +

Set action: deny in the PolicyLayer policy for get_weather_forecast_nws. 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 get_weather_forecast_nws? +

get_weather_forecast_nws is provided by the Delx MCP Server MCP server (delx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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