validate-media

Validates a media item 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-media.md

WHAT IT DOES

What validate-media does on Mcp Dev

AI agents call validate-media 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-media is rated Low

Validation typically involves querying or inspecting a resource to check its integrity or conformance to rules, producing a result without creating, modifying, or deleting any data. No side effects are implied by the description.

From the tool's definition "Validates a media item" — validation is a read/check operation that inspects data without modifying it

Attacks that exploit this kind of access

RECOMMENDED RULE

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

validate-media Allowed

validate-media 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-media": {}
  }
}

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-media call is checked against it from then on.

FAQ

Questions about validate-media

What does the validate-media tool do? +

Validates a media item 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-media? +

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

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

Can I rate-limit validate-media? +

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

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

validate-media 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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