fl_get_song_length

THE RISK

Low Risk

Why fl_get_song_length needs a policy

This tool only queries and returns information about song duration—a read-only operation with no capability to modify, execute, delete, or move resources. The blast radius of misuse is minimal; incorrect length data cannot harm the project or system. It falls squarely under the Read category alongside sibling tools like fl_get_channel_info and fl_get_all_channels.

From the tool's definition Tool name 'fl_get_song_length' and description 'Get the total length of the current song/pattern' indicate a query operation that retrieves metadata about the current project without modifying any state or triggering side effects.

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

POLICY

How to control fl_get_song_length

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "fl_get_song_length": {}
  }
}

fl_get_song_length is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register FL Studio MCP Server — 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

Related tools and policies

More FL Studio MCP Server tools

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about fl_get_song_length

What does the fl_get_song_length tool do? +

Get the total length of the current song/pattern. It is categorised as a Read tool in the FL Studio MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on fl_get_song_length? +

Register the FL Studio MCP Server MCP server in PolicyLayer and add a rule for fl_get_song_length: 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 FL Studio MCP Server. Nothing to install.

What risk level is fl_get_song_length? +

fl_get_song_length is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit fl_get_song_length? +

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

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

fl_get_song_length is provided by the FL Studio MCP Server MCP server (karl-andres/fl-studio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every FL Studio MCP Server tool call.

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

CHECK YOUR STACK →