AI agents call find_range_by_vm_name to retrieve information from Ludus FastMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears to search or retrieve range information based on a VM name criterion. The naming convention 'find_' is consistent with Read operations that query data without modification. The empty description lowers confidence slightly, but the verb 'find' and the pattern of sibling tools (which include create, apply, add operations) suggests this is a retrieval-only function.
From the tool's definition Tool name 'find_range_by_vm_name' suggests a query or lookup operation that retrieves a range by matching a VM name parameter. The 'find_*' prefix typically indicates a search/retrieval action with no side effects.
Documented attack patterns abuse exactly the kind of access find_range_by_vm_name gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ludus FastMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for find_range_by_vm_name:
{
"version": "1",
"default": "deny",
"tools": {
"find_range_by_vm_name": {}
}
}find_range_by_vm_name is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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find_range_by_vm_name. It is categorised as a Read tool in the Ludus FastMCP MCP Server, which means it retrieves data without modifying state.
Register the Ludus Fast MCP server in PolicyLayer and add a rule for find_range_by_vm_name: 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.
find_range_by_vm_name is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the find_range_by_vm_name 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.
Set action: deny in the PolicyLayer policy for find_range_by_vm_name. 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.
find_range_by_vm_name 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.
Deterministic rules across all 201 Ludus FastMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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201 Ludus FastMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.