validate-element

Validates a create element model, using the Umbraco API.

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/validate-element.md

WHAT IT DOES

What validate-element does on Mcp Dev

AI agents call validate-element 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 validate-element is rated Low

Validation operations query the API to check if data is valid but produce no side effects. No data is created, modified, or destroyed; the tool simply returns a validation result.

From the tool's definition 'Validates a create element model' — validation only checks data correctness without creating, modifying, or deleting anything

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs validate-element 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 validate-element, this is the rule to start with:

validate-element Allowed

validate-element 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": {
    "validate-element": {}
  }
}

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 validate-element call is checked against it from then on.

FAQ

Questions about validate-element

What does the validate-element tool do? +

Validates a create element model, using the Umbraco API. 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 validate-element? +

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

validate-element is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit validate-element? +

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

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

validate-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.

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