gribstream_get_parameter

SERVERGribStream MCP SOURCEhttps://gribstream.com/mcp

Low RISK CLASS

Category Read

Parameters 22 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-gribstream-mcp/gribstream-get-parameter.md

WHAT IT DOES

What gribstream_get_parameter does on GribStream MCP

AI agents call gribstream_get_parameter to retrieve information from GribStream MCP 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
`dataset`	string	Yes	Dataset code, for example ifsoper.
`parameter`	string	Yes	Exact case-sensitive parameter short name, for example 100u, 2t, TMP, or APCP.

Parameters from the server's own tool schema.

RISK

Why gribstream_get_parameter is rated Low

This tool purely retrieves metadata about dataset parameters without side effects. It does not modify, delete, execute code, or return actual weather data. The explicit read-only designation and metadata-only scope place it firmly in the Read category with low severity.

From the tool's definition Tool description explicitly states "NO AUTH / PUBLIC / READ-ONLY" and "Gets detailed metadata and exact selector variations for one dataset parameter." Further confirms "This tool does not query weather values and cannot return forecast data."

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gribstream_get_parameter safely

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

gribstream_get_parameter Allowed

gribstream_get_parameter 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": {
    "gribstream_get_parameter": {}
  }
}

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

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

FAQ

Questions about gribstream_get_parameter

What does the gribstream_get_parameter tool do? +

NO AUTH / PUBLIC / READ-ONLY. Gets detailed metadata and exact selector variations for one dataset parameter. Parameter codes are case-sensitive. This tool does not query weather values and cannot return forecast data. It is categorised as a Read tool in the GribStream MCP MCP Server, which means it retrieves data without modifying state.

What parameters does gribstream_get_parameter accept? +

gribstream_get_parameter accepts 2 parameters: dataset, parameter. Required: dataset, parameter. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on gribstream_get_parameter? +

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

What risk level is gribstream_get_parameter? +

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

Can I rate-limit gribstream_get_parameter? +

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

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

gribstream_get_parameter is provided by the GribStream MCP server (https://gribstream.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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