show_notification · Ulanzi MCP: Risk & Policy

WHAT IT DOES

What show_notification does on Ulanzi

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

WHY IT NEEDS A POLICY

Why show_notification needs a policy

The tool name 'show_notification' strongly implies sending/displaying a notification on the Ulanzi TC001 Smart Pixel Clock. This is a Write operation — it creates/pushes a transient notification to the device. The description is empty, so confidence is reduced. Severity is medium because misuse could spam the display with unwanted messages, but it does not destroy data or trigger financial actions.

From the tool's definition Tool name 'show_notification' and server context: 'Enables power, brightness, notifications, and more from AI assistants' via AWTRIX3 HTTP API

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

show_notification Rate-limited

show_notification 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": {
    "show_notification": {
      "limits": [
        {
          "counter": "show_notification_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 Ulanzi, so you can run agents against it safely.

FAQ

Questions about show_notification

What does the show_notification tool do? +

show_notification. It is categorised as a Write tool in the Ulanzi MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on show_notification? +

Register the Ulanzi MCP server in PolicyLayer and add a rule for show_notification: 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 Ulanzi. Nothing to install.

What risk level is show_notification? +

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

Can I rate-limit show_notification? +

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

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

show_notification is provided by the Ulanzi MCP server (jelloeater/ulanzi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.