validate-media-update

Validates media data before updating an existing media item by 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/validate-media-update.md

WHAT IT DOES

What validate-media-update does on Mcp Dev

AI agents call validate-media-update 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-update is rated Low

This tool performs data validation, which is a read operation with no side effects. It examines media data to verify its integrity or compliance with rules before an update occurs, but does not itself modify data. Validation tools are informational and safe, classified as Read operations.

From the tool's definition The tool 'validate-media-update' performs validation of media data before updating. The word 'validates' indicates it checks data without modifying it.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

validate-media-update Allowed

validate-media-update 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-update": {}
  }
}

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-update call is checked against it from then on.

FAQ

Questions about validate-media-update

What does the validate-media-update tool do? +

Validates media data before updating an existing media item by 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 validate-media-update? +

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

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

Can I rate-limit validate-media-update? +

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

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

validate-media-update 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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