restore_from_backup

THE RISK

Medium Risk

Why restore_from_backup needs a policy

Restore operations are Write-category actions that create or modify data reversibly. While they recover previous states rather than delete data, they involve overwriting current resource configurations with backup versions, which is a significant state modification.

From the tool's definition Tool name 'restore_from_backup' indicates a restore operation that modifies infrastructure state by retrieving and reapplying backup data to resources.

Documented attack patterns abuse exactly the kind of access restore_from_backup gives an agent:

POLICY

How to control restore_from_backup

PolicyLayer is an MCP gateway — it sits between your AI agents and Vultr MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for restore_from_backup:

policy.json

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

restore_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.

Create a free account and register Vultr MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 284 Vultr MCP tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about restore_from_backup

What does the restore_from_backup tool do? +

restore_from_backup. It is categorised as a Write tool in the Vultr MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on restore_from_backup? +

Register the Vultr MCP server in PolicyLayer and add a rule for restore_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 Vultr MCP. Nothing to install.

What risk level is restore_from_backup? +

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

Can I rate-limit restore_from_backup? +

Yes. Add a rate_limit block to the restore_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 restore_from_backup completely? +

Set action: deny in the PolicyLayer policy for restore_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 restore_from_backup? +

restore_from_backup is provided by the Vultr MCP server (rsp2k/mcp-vultr). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Vultr MCP tool call.

Start from Vultr MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →