Medium Risk

drive_on

Enable a drive

How to control drive_on ↓

What drive_on does on Commodore 64 Ultimate Computer MCP Server

AI agents use drive_on to create or update resources in Commodore 64 Ultimate Computer MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Commodore 64 Ultimate Computer MCP Server environment.

Medium Risk

Why drive_on needs a policy

Enabling a drive is a reversible state change (it can be disabled again), making it a Write operation. It modifies the configuration/state of a hardware component but does not delete data or execute code. Severity is low as it only enables a drive on a C64 device with limited blast radius.

From the tool's definition Enable a drive

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

How to control drive_on

PolicyLayer is an MCP gateway — it sits between your AI agents and Commodore 64 Ultimate Computer MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for drive_on:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "drive_on": {
      "limits": [
        {
          "counter": "drive_on_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

drive_on 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.

  1. Create a free account and register Commodore 64 Ultimate Computer MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

Go deeper

Questions about drive_on

What does the drive_on tool do? +

Enable a drive. It is categorised as a Write tool in the Commodore 64 Ultimate Computer 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 drive_on? +

Register the Commodore 64 Ultimate Computer MCP Server MCP server in PolicyLayer and add a rule for drive_on: 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 Commodore 64 Ultimate Computer MCP Server. Nothing to install.

What risk level is drive_on? +

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

Can I rate-limit drive_on? +

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

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

drive_on is provided by the Commodore 64 Ultimate Computer MCP Server MCP server (xphileby/c64u-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Commodore 64 Ultimate Computer MCP Server tool call.

Start from Commodore 64 Ultimate Computer MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

54 Commodore 64 Ultimate Computer MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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