create_playlist · Claude Music MCP: Risk & Policy

WHAT IT DOES

What create_playlist does on Claude Music MCP

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

WHY IT NEEDS A POLICY

Why create_playlist needs a policy

This tool creates new playlists, a reversible write operation that adds metadata to a music management system. There are no side effects beyond data creation, no data deletion, no code execution, and no financial implications. The blast radius is minimal—a misused tool could create unwanted playlists, but this can be reversed by deletion. Classified as Write with low severity.

From the tool's definition Tool description 'create_playlist' (translated: 'creates new playlist') explicitly performs a create operation, which is a data modification action. The tool name and description directly indicate playlist creation functionality.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_playlist Rate-limited

create_playlist 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": {
    "create_playlist": {
      "limits": [
        {
          "counter": "create_playlist_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 Claude Music MCP, so you can run agents against it safely.

FAQ

Questions about create_playlist

What does the create_playlist tool do? +

创建新的播放列表. It is categorised as a Write tool in the Claude Music MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_playlist? +

Register the Claude Music MCP server in PolicyLayer and add a rule for create_playlist: 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 Claude Music MCP. Nothing to install.

What risk level is create_playlist? +

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

Can I rate-limit create_playlist? +

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

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

create_playlist is provided by the Claude Music MCP server (leehave/claude-music-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.