// MCP TOOL REFERENCE

fw_remove_from_playlist

Remove a single track from a playlist by its 0-based position (use fw_get_playlist_tracks to find the right index first). Funkwhale uses POST /remove/ with body {index} — not DELETE.

ServerCrow
CategoryDestructive

How to control fw_remove_from_playlist ↓

WHAT IT DOES

What fw_remove_from_playlist does on Crow

AI agents call fw_remove_from_playlist to permanently remove resources in Crow — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

THE RISK

Critical Risk

Why fw_remove_from_playlist needs a policy

Removing a track from a playlist is a destructive modification — the track's position in the playlist is deleted/removed. While not catastrophic (the track itself still exists), the playlist entry removal is not easily reversible without knowing the original index and re-adding. The description explicitly says 'Remove' and uses a POST to a /remove/ endpoint, indicating an irreversible deletion of the playlist entry.

From the tool's definition Remove a single track from a playlist by its 0-based position

Documented attack patterns abuse exactly the kind of access fw_remove_from_playlist gives an agent:

POLICY

How to control fw_remove_from_playlist

PolicyLayer is an MCP gateway — it sits between your AI agents and Crow, and nothing reaches the server without passing your rules. This is the rule we recommend for fw_remove_from_playlist:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "fw_remove_from_playlist"
  ]
}

fw_remove_from_playlist disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Crow — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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Go deeper

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All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about fw_remove_from_playlist

What does the fw_remove_from_playlist tool do? +

Remove a single track from a playlist by its 0-based position (use fw_get_playlist_tracks to find the right index first). Funkwhale uses POST /remove/ with body {index} — not DELETE. It is categorised as a Destructive tool in the Crow MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on fw_remove_from_playlist? +

Register the Crow MCP server in PolicyLayer and add a rule for fw_remove_from_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 Crow. Nothing to install.

What risk level is fw_remove_from_playlist? +

fw_remove_from_playlist is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit fw_remove_from_playlist? +

Yes. Add a rate_limit block to the fw_remove_from_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 fw_remove_from_playlist completely? +

Set action: deny in the PolicyLayer policy for fw_remove_from_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 fw_remove_from_playlist? +

fw_remove_from_playlist is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Crow tool call.

Start from Crow, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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576 Crow tools catalogued and risk-classified — across an index of 43,000+ MCP servers.