track_fx_get_num_params

THE RISK

Low Risk

Why track_fx_get_num_params needs a policy

This tool performs a read-only retrieval of metadata about an FX plugin (specifically the parameter count). It has no side effects, does not execute code, does not modify state, and does not create or delete data. It is purely informational in nature, making it a Read category tool with low severity impact.

From the tool's definition The tool name is 'track_fx_get_num_params' and the description states it 'Get[s] the number of parameters for an FX plugin.' This is a getter/query operation that retrieves information about a plugin's parameter count without modifying, executing, or deleting…

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

POLICY

How to control track_fx_get_num_params

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

policy.json

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

track_fx_get_num_params 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 Reaper — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Reaper tools

Destructive clear_envelope Delete all points from an envelope. Destructive clear_fx_envelope Clear all automation points from an FX parameter envelope. Destructive clear_midi_item Delete all MIDI notes from an item. Destructive delete_envelope_point Delete an envelope point. Destructive delete_fx_envelope_point delete_fx_envelope_point Destructive delete_item Delete a media item. Destructive delete_marker Delete a marker by index. Destructive delete_midi_note Delete a MIDI note from an item.

All 158 Reaper tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

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 track_fx_get_num_params

What does the track_fx_get_num_params tool do? +

Get the number of parameters for an FX plugin. It is categorised as a Read tool in the Reaper MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on track_fx_get_num_params? +

Register the Reaper MCP server in PolicyLayer and add a rule for track_fx_get_num_params: 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 Reaper. Nothing to install.

What risk level is track_fx_get_num_params? +

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

Can I rate-limit track_fx_get_num_params? +

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

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

track_fx_get_num_params is provided by the Reaper MCP server (twelvetake-studios/reaper-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Reaper tool call.

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

CHECK YOUR STACK →