add_host · Unlimited MCP: Risk & Policy

WHAT IT DOES

What add_host does on Unlimited

AI agents call add_host as a supporting operation in Unlimited workflows.

WHY IT NEEDS A POLICY

Why add_host needs a policy

The description is empty, so the classification must rely on the tool name alone. 'add_host' in the context of an MCP server managing agents, queues, and providers likely registers a new host/machine for delegating work — a Write operation at most. However, given the sysops context, it could also involve infrastructure configuration. Confidence is low due to missing description.

From the tool's definition Tool name is 'add_host' but description is empty or uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_host Rate-limited

add_host gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_host": {
      "limits": [
        {
          "counter": "add_host_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about add_host

What does the add_host tool do? +

add_host. It is categorised as a Other tool in the Unlimited MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on add_host? +

Register the Unlimited MCP server in PolicyLayer and add a rule for add_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 Unlimited. Nothing to install.

What risk level is add_host? +

add_host is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit add_host? +

Yes. Add a rate_limit block to the add_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 add_host completely? +

Set action: deny in the PolicyLayer policy for add_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 add_host? +

add_host is provided by the Unlimited MCP server (triumsebas/unlimited-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.