createMediaMetadata · Xdevplatform/x MCP: Risk & Policy

WHAT IT DOES

What createMediaMetadata does on Xdevplatform/xmcp

AI agents use createMediaMetadata to create or update resources in Xdevplatform/xmcp — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Xdevplatform/xmcp environment.

WHY IT NEEDS A POLICY

Why createMediaMetadata needs a policy

This tool creates or modifies metadata (alt text, etc.) on existing media. While reversible and not destructive, it constitutes a Write operation as it adds/modifies data. Severity is medium because misuse could add misleading metadata to media (e.g., incorrect alt text affecting accessibility or user understanding), but this has limited blast radius compared to destructive or financial operations.

From the tool's definition Tool name 'createMediaMetadata' and description 'Add metadata such as alt text to uploaded media' indicate creation/modification of metadata associated with media objects.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

createMediaMetadata Rate-limited

createMediaMetadata 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": {
    "createMediaMetadata": {
      "limits": [
        {
          "counter": "createmediametadata_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Xdevplatform/xmcp, so you can run agents against it safely.

FAQ

Questions about createMediaMetadata

What does the createMediaMetadata tool do? +

Add metadata such as alt text to uploaded media. It is categorised as a Write tool in the Xdevplatform/xmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on createMediaMetadata? +

Register the Xdevplatform/x MCP server in PolicyLayer and add a rule for createMediaMetadata: 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 Xdevplatform/xmcp. Nothing to install.

What risk level is createMediaMetadata? +

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

Can I rate-limit createMediaMetadata? +

Yes. Add a rate_limit block to the createMediaMetadata 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 createMediaMetadata completely? +

Set action: deny in the PolicyLayer policy for createMediaMetadata. 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 createMediaMetadata? +

createMediaMetadata is provided by the Xdevplatform/x MCP server (xdevplatform/xmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.