move-element · Mcp Dev MCP: Risk & Policy

WHAT IT DOES

What move-element does on Mcp Dev

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

WHY IT NEEDS A POLICY

Why move-element needs a policy

Moving an element modifies the data structure and location metadata reversibly. This qualifies as Write rather than Destructive because the operation can be undone by moving the element back. It is more severe than Read due to its side effects on content organization, but less severe than Destructive or Execute operations.

From the tool's definition Tool name 'move-element' with description 'Move an element to a new location' indicates structural modification of content within Umbraco CMS.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

move-element Rate-limited

move-element 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-element": {
      "limits": [
        {
          "counter": "move-element_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 Mcp Dev, so you can run agents against it safely.

FAQ

Questions about move-element

What does the move-element tool do? +

Move an element to a new location. It is categorised as a Write tool in the Mcp Dev 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-element? +

Register the Mcp Dev MCP server in PolicyLayer and add a rule for move-element: 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 Mcp Dev. Nothing to install.

What risk level is move-element? +

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

Can I rate-limit move-element? +

Yes. Add a rate_limit block to the move-element 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-element completely? +

Set action: deny in the PolicyLayer policy for move-element. 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-element? +

move-element is provided by the Mcp Dev MCP server (@umbraco-cms/mcp-dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.