delete_range

A destructive tool on the Ludus Fast MCP server.

SERVERLudus FastMCP SOURCEtjnull/ludus-fastmcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/tjnull-ludus-fastmcp/delete-range.md

WHAT IT DOES

What delete_range does on Ludus FastMCP

AI agents call delete_range to permanently remove resources in Ludus FastMCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why delete_range is rated Critical

The Ludus FastMCP server manages cyber range environments, and 'delete_range' would remove a range environment and its associated data irreversibly. This is a destructive operation that cannot be undone. While the description is empty (lowering confidence slightly), the tool name itself is explicit. The high confidence reflects the unambiguous destructive semantics of 'delete' applied to infrastructure resources.

From the tool's definition Tool name is 'delete_range' with no description provided. The verb 'delete' combined with the object 'range' (a cyber range environment in the Ludus system) indicates irreversible removal of infrastructure resources.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

delete_range Hidden

delete_range is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_range"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about delete_range

What does the delete_range tool do? +

delete_range is a destructive tool on the Ludus Fast MCP server. It is categorised as a Destructive tool in the Ludus FastMCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_range? +

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

delete_range is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_range? +

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

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

delete_range 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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