update-element-folder · Mcp Dev MCP: Risk & Policy

WHAT IT DOES

What update-element-folder does on Mcp Dev

AI agents use update-element-folder 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 update-element-folder needs a policy

The tool creates or modifies data reversibly without permanently deleting resources or executing arbitrary code. It falls under Write category as it alters folder properties/configuration that can be undone or changed again.

From the tool's definition Tool description states 'Updates an element folder' — this modifies existing data (element folder configuration/properties) in an Umbraco CMS system. The verb 'update' indicates a reversible change to structured content metadata.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update-element-folder Rate-limited

update-element-folder 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": {
    "update-element-folder": {
      "limits": [
        {
          "counter": "update-element-folder_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 update-element-folder

What does the update-element-folder tool do? +

Updates an element folder. 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 update-element-folder? +

Register the Mcp Dev MCP server in PolicyLayer and add a rule for update-element-folder: 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 update-element-folder? +

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

Can I rate-limit update-element-folder? +

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

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

update-element-folder 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.