copy-media-type

Copy a media type to a new location

SERVERMcp Dev SOURCE@umbraco-cms/mcp-dev

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mcp-dev/copy-media-type.md

WHAT IT DOES

What copy-media-type does on Mcp Dev

AI agents use copy-media-type 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.

RISK

Why copy-media-type is rated Medium

The 'copy' operation creates a duplicate of a media type in a new location within the Umbraco CMS. This is a Write action because it creates new data (a copy) reversibly—the original remains and can be deleted if needed. It does not execute arbitrary code, delete irreversibly, or move money, so it does not qualify as Execute, Destructive, or Financial.

From the tool's definition Tool name is 'copy-media-type' with description 'Copy a media type to a new location' — this operation creates a new copy of a media type configuration, which is a reversible modification that results in new data being created in the CMS.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs copy-media-type safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Dev, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For copy-media-type, this is the rule to start with:

copy-media-type Rate-limited

copy-media-type 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": {
    "copy-media-type": {
      "limits": [
        {
          "counter": "copy-media-type_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Dev, apply this rule, and every copy-media-type call is checked against it from then on.

FAQ

Questions about copy-media-type

What does the copy-media-type tool do? +

Copy a media type 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 copy-media-type? +

Register the Mcp Dev MCP server in PolicyLayer and add a rule for copy-media-type: 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 copy-media-type? +

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

Can I rate-limit copy-media-type? +

Yes. Add a rate_limit block to the copy-media-type 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 copy-media-type completely? +

Set action: deny in the PolicyLayer policy for copy-media-type. 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 copy-media-type? +

copy-media-type 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.

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