unquarantine_host · Velociraptor MCP Server MCP

WHAT IT DOES

What unquarantine_host does on Velociraptor MCP Server

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

WHY IT NEEDS A POLICY

Why unquarantine_host needs a policy

This tool reverses a security control by removing network isolation from a quarantined host. While technically reversible (the host can be re-quarantined), releasing a host from quarantine during an incident response scenario can have significant security consequences — potentially re-exposing a compromised system to the network. It modifies the host's security state, making it a Write operation.

From the tool's definition Remove quarantine (network isolation) from a Windows host

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unquarantine_host Rate-limited

unquarantine_host 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": {
    "unquarantine_host": {
      "limits": [
        {
          "counter": "unquarantine_host_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 Velociraptor MCP Server, so you can run agents against it safely.

FAQ

Questions about unquarantine_host

What does the unquarantine_host tool do? +

Remove quarantine (network isolation) from a Windows host. It is categorised as a Write tool in the Velociraptor 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 unquarantine_host? +

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

What risk level is unquarantine_host? +

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

Can I rate-limit unquarantine_host? +

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

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

unquarantine_host is provided by the Velociraptor MCP Server MCP server (snoe-findley/mcp-velociraptor). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.