gribstream_list_parameters

SERVERGribStream MCP SOURCEhttps://gribstream.com/mcp

Low RISK CLASS

Category Read

Parameters 11 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-gribstream-mcp/gribstream-list-parameters.md

WHAT IT DOES

What gribstream_list_parameters does on GribStream MCP

AI agents call gribstream_list_parameters 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.

Parameters from the server's own tool schema.

RISK

Why gribstream_list_parameters is rated Low

This tool retrieves and lists metadata about available parameters for a dataset without side effects, authentication barriers, or access to actual weather forecast data. It is a pure discovery/query operation with minimal blast radius if misused—an AI agent querying this tool cannot cause data loss, modify state, execute code, or commit financial transactions.

From the tool's definition Tool description explicitly states 'NO AUTH / PUBLIC / READ-ONLY' and 'Lists parameter summaries' and 'cannot return forecast data'. The name 'list_parameters' indicates a retrieval operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs gribstream_list_parameters 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_list_parameters, this is the rule to start with:

gribstream_list_parameters Allowed

gribstream_list_parameters 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_list_parameters": {}
  }
}

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_list_parameters call is checked against it from then on.

FAQ

Questions about gribstream_list_parameters

What does the gribstream_list_parameters tool do? +

NO AUTH / PUBLIC / READ-ONLY. Lists parameter summaries for one dataset. Use this before selecting exact case-sensitive parameter codes. 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_list_parameters accept? +

gribstream_list_parameters accepts 1 parameter: dataset. Required: dataset. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on gribstream_list_parameters? +

Register the GribStream MCP server in PolicyLayer and add a rule for gribstream_list_parameters: 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_list_parameters? +

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

Can I rate-limit gribstream_list_parameters? +

Yes. Add a rate_limit block to the gribstream_list_parameters 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_list_parameters completely? +

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

gribstream_list_parameters 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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