get-media-type-siblings

Gets sibling media types or media type folders for a given descendant id

SERVERMcp Dev SOURCE@umbraco-cms/mcp-dev

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

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

WHAT IT DOES

What get-media-type-siblings does on Mcp Dev

AI agents call get-media-type-siblings to retrieve information from Mcp Dev without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get-media-type-siblings is rated Low

This tool only queries and returns information about media type structure in Umbraco CMS. It performs a read-only lookup operation to retrieve sibling entities, with no capability to create, modify, delete, or execute actions. The low severity reflects minimal risk even if misused by an AI agent, as it cannot alter system state.

From the tool's definition Tool description states it 'Gets sibling media types or media type folders' — a pure retrieval operation with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get-media-type-siblings 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 get-media-type-siblings, this is the rule to start with:

get-media-type-siblings Allowed

get-media-type-siblings is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get-media-type-siblings": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about get-media-type-siblings

What does the get-media-type-siblings tool do? +

Gets sibling media types or media type folders for a given descendant id. It is categorised as a Read tool in the Mcp Dev MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-media-type-siblings? +

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

get-media-type-siblings is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get-media-type-siblings? +

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

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

get-media-type-siblings 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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