list_subscription_roles

List available subscription roles (Ludus 2.0 Enterprise only).

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/list-subscription-roles.md

WHAT IT DOES

What list_subscription_roles does on Ludus FastMCP

AI agents call list_subscription_roles 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 list_subscription_roles is rated Low

This tool retrieves and displays information about available subscription roles without modifying, deleting, or executing any operations. It is a read-only query operation with minimal blast radius if misused by an AI agent—at worst it exposes role metadata which is typically non-sensitive configuration information.

From the tool's definition Tool name 'list_subscription_roles' and description 'List available subscription roles' indicate a query/retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

list_subscription_roles Allowed

list_subscription_roles 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": {
    "list_subscription_roles": {}
  }
}

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 list_subscription_roles call is checked against it from then on.

FAQ

Questions about list_subscription_roles

What does the list_subscription_roles tool do? +

List available subscription roles (Ludus 2.0 Enterprise only). 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 list_subscription_roles? +

Register the Ludus Fast MCP server in PolicyLayer and add a rule for list_subscription_roles: 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 list_subscription_roles? +

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

Can I rate-limit list_subscription_roles? +

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

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

list_subscription_roles 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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