move_drive_item · Huly MCP: Risk & Policy

WHAT IT DOES

What move_drive_item does on Huly

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

WHY IT NEEDS A POLICY

Why move_drive_item needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

move_drive_item Rate-limited

move_drive_item 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": {
    "move_drive_item": {
      "limits": [
        {
          "counter": "move_drive_item_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 Huly, so you can run agents against it safely.

FAQ

Questions about move_drive_item

What does the move_drive_item tool do? +

Move a Drive item, meaning a file or folder, to another existing folder path in the same Drive without renaming it. Idempotent when the item is already in that folder. Rejects sibling title collisions and rejects moving a folder into itself or a descendant. It is categorised as a Write tool in the Huly MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on move_drive_item? +

Register the Huly MCP server in PolicyLayer and add a rule for move_drive_item: 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 Huly. Nothing to install.

What risk level is move_drive_item? +

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

Can I rate-limit move_drive_item? +

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

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

move_drive_item is provided by the Huly MCP server (@firfi/huly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.