unlink_vm_from_backup · CloudStack MCP Server MCP

WHAT IT DOES

What unlink_vm_from_backup does on CloudStack MCP Server

AI agents use unlink_vm_from_backup to create or update resources in CloudStack MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your CloudStack MCP Server environment.

WHY IT NEEDS A POLICY

Why unlink_vm_from_backup needs a policy

This tool modifies the state of a VM's backup configuration by removing its association with a backup system. While it doesn't delete data irreversibly (the backup may still exist independently), it does alter infrastructure state in a way that could impact disaster recovery capabilities. This is a Write operation rather than Destructive because unlinking is typically reversible (the VM can be relinked).

From the tool's definition Tool name 'unlink_vm_from_backup' and description 'Unlink virtual machine from backup' indicate a modification operation that changes the backup relationship of a virtual machine.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unlink_vm_from_backup Rate-limited

unlink_vm_from_backup stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "unlink_vm_from_backup": {
      "limits": [
        {
          "counter": "unlink_vm_from_backup_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches CloudStack MCP Server, so you can run agents against it safely.

FAQ

Questions about unlink_vm_from_backup

What does the unlink_vm_from_backup tool do? +

Unlink virtual machine from backup. It is categorised as a Write tool in the CloudStack MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unlink_vm_from_backup? +

Register the CloudStack MCP Server MCP server in PolicyLayer and add a rule for unlink_vm_from_backup: 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 CloudStack MCP Server. Nothing to install.

What risk level is unlink_vm_from_backup? +

unlink_vm_from_backup is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit unlink_vm_from_backup? +

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

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

unlink_vm_from_backup is provided by the CloudStack MCP Server MCP server (mozg31337/cloudstack-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.