postmediagroup · Revel Digital MCP Server MCP: Risk & Policy

WHAT IT DOES

What postmediagroup does on Revel Digital MCP Server

AI agents use postmediagroup to create or update resources in Revel Digital MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Revel Digital MCP Server environment.

WHY IT NEEDS A POLICY

Why postmediagroup needs a policy

This tool creates (writes) new media groups in the digital signage system. Creation is reversible via the sibling deletemediegroup tool. The blast radius is limited to organizational data structure; misuse would result in unwanted media groupings that can be deleted. This is a standard Write operation without destructive, financial, or code execution implications.

From the tool's definition Tool name 'postmediagroup' uses POST method and description states 'Create a new media group', indicating reversible data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

postmediagroup Rate-limited

postmediagroup 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": {
    "postmediagroup": {
      "limits": [
        {
          "counter": "postmediagroup_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 Revel Digital MCP Server, so you can run agents against it safely.

FAQ

Questions about postmediagroup

What does the postmediagroup tool do? +

Create a new media group. It is categorised as a Write tool in the Revel Digital MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on postmediagroup? +

Register the Revel Digital MCP Server MCP server in PolicyLayer and add a rule for postmediagroup: 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 Revel Digital MCP Server. Nothing to install.

What risk level is postmediagroup? +

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

Can I rate-limit postmediagroup? +

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

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

postmediagroup is provided by the Revel Digital MCP Server MCP server (reveldigital/reveldigital-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.