set_playing_mode · Sushi MCP Server MCP: Risk & Policy

WHAT IT DOES

What set_playing_mode does on Sushi MCP Server

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

WHY IT NEEDS A POLICY

Why set_playing_mode needs a policy

This tool modifies the playback state (e.g., playing, stopped, paused) of the Sushi audio engine. It changes a configuration/state setting reversibly, as the mode can be changed again. No data is deleted, no code is executed arbitrarily, and no financial transaction occurs. This is a Write operation with medium severity since misuse could disrupt real-time audio processing sessions.

From the tool's definition Set the playing mode of Sushi

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_playing_mode Rate-limited

set_playing_mode 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": {
    "set_playing_mode": {
      "limits": [
        {
          "counter": "set_playing_mode_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 Sushi MCP Server, so you can run agents against it safely.

FAQ

Questions about set_playing_mode

What does the set_playing_mode tool do? +

Set the playing mode of Sushi. It is categorised as a Write tool in the Sushi 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 set_playing_mode? +

Register the Sushi MCP Server MCP server in PolicyLayer and add a rule for set_playing_mode: 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 Sushi MCP Server. Nothing to install.

What risk level is set_playing_mode? +

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

Can I rate-limit set_playing_mode? +

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

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

set_playing_mode is provided by the Sushi MCP Server MCP server (nagarjun226/sushi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.