add_to_playlist

Add songs to a playlist

SERVERYtm SOURCE4shil/ytm-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/4shil-ytm-mcp/add-to-playlist.md

WHAT IT DOES

What add_to_playlist does on Ytm

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

RISK

Why add_to_playlist is rated Medium

This tool modifies playlists by adding songs, which is a reversible write operation. It does not delete data (Destructive), execute arbitrary code (Execute), or involve financial transactions (Financial). The blast radius is minimal—worst case, a user's playlist is cluttered with unwanted songs, which can be easily undone by removing them.

From the tool's definition Tool name 'add_to_playlist' and description 'Add songs to a playlist' indicate a modification operation that creates or updates playlist contents.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_to_playlist safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Ytm, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_to_playlist, this is the rule to start with:

add_to_playlist Rate-limited

add_to_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": {
    "add_to_playlist": {
      "limits": [
        {
          "counter": "add_to_playlist_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Ytm, apply this rule, and every add_to_playlist call is checked against it from then on.

FAQ

Questions about add_to_playlist

What does the add_to_playlist tool do? +

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

How do I enforce a policy on add_to_playlist? +

Register the Ytm MCP server in PolicyLayer and add a rule for add_to_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 Ytm. Nothing to install.

What risk level is add_to_playlist? +

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

Can I rate-limit add_to_playlist? +

Yes. Add a rate_limit block to the add_to_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 add_to_playlist completely? +

Set action: deny in the PolicyLayer policy for add_to_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 add_to_playlist? +

add_to_playlist is provided by the Ytm MCP server (4shil/ytm-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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