postplaylist · Revel Digital MCP Server MCP: Risk & Policy

WHAT IT DOES

What postplaylist does on Revel Digital MCP Server

AI agents use postplaylist 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 postplaylist needs a policy

This tool creates new playlist resources in a digital signage system, modifying system state reversibly. It falls under Write rather than Execute because it performs a specific data creation action without running arbitrary code or shell commands.

From the tool's definition Tool name 'postplaylist' and description 'Create a new playlist' indicate data creation. The POST HTTP method and 'Create' verb are standard Write operation indicators.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

postplaylist Rate-limited

postplaylist 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": {
    "postplaylist": {
      "limits": [
        {
          "counter": "postplaylist_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 postplaylist

What does the postplaylist tool do? +

Create a new playlist. 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 postplaylist? +

Register the Revel Digital MCP Server MCP server in PolicyLayer and add a rule for postplaylist: 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 postplaylist? +

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

Can I rate-limit postplaylist? +

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

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

postplaylist 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.