resize_instance · Civo MCP Server MCP: Risk & Policy

WHAT IT DOES

What resize_instance does on Civo MCP Server

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

WHY IT NEEDS A POLICY

Why resize_instance needs a policy

An AI agent can call resize_instance faster than any human can review — one bad instruction and it creates or modifies resources in Civo MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

resize_instance Rate-limited

resize_instance 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": {
    "resize_instance": {
      "limits": [
        {
          "counter": "resize_instance_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 Civo MCP Server, so you can run agents against it safely.

FAQ

Questions about resize_instance

What does the resize_instance tool do? +

Resize a cloud instance on Civo. It is categorised as a Write tool in the Civo 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 resize_instance? +

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

What risk level is resize_instance? +

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

Can I rate-limit resize_instance? +

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

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

resize_instance is provided by the Civo MCP Server MCP server (tao12345666333/civo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.