get_range_by_user

A read tool on the Ludus Fast MCP server.

SERVERLudus FastMCP SOURCEtjnull/ludus-fastmcp

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/tjnull-ludus-fastmcp/get-range-by-user.md

WHAT IT DOES

What get_range_by_user does on Ludus FastMCP

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

RISK

Why get_range_by_user is rated Low

The 'get_' prefix and 'by_user' qualifier indicate this tool queries/retrieves existing range data filtered by a user parameter. This is a read-only operation with no side effects—it does not create, modify, delete, execute code, or move money. Low severity because unauthorized queries of range metadata typically have limited blast radius compared to executing commands or deleting ranges.

From the tool's definition Tool name 'get_range_by_user' indicates retrieval of range information associated with a user. The verb 'get' is a classic read operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_range_by_user safely

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

get_range_by_user Allowed

get_range_by_user 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_range_by_user": {}
  }
}

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

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

FAQ

Questions about get_range_by_user

What does the get_range_by_user tool do? +

get_range_by_user is a read tool on the Ludus Fast MCP server. It is categorised as a Read tool in the Ludus FastMCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_range_by_user? +

Register the Ludus Fast MCP server in PolicyLayer and add a rule for get_range_by_user: 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 Ludus FastMCP. Nothing to install.

What risk level is get_range_by_user? +

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

Can I rate-limit get_range_by_user? +

Yes. Add a rate_limit block to the get_range_by_user 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_range_by_user completely? +

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

get_range_by_user is provided by the Ludus Fast MCP server (tjnull/ludus-fastmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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