set_track_send · Ableton Mcp Lofifren MCP: Risk & Policy

WHAT IT DOES

What set_track_send does on Ableton Mcp Lofifren

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

WHY IT NEEDS A POLICY

Why set_track_send needs a policy

This tool modifies the mixer state by adjusting send levels, which is a Write operation (changes audio routing and effects chain configuration reversibly). It is not Destructive because send amounts can be changed back or removed. Severity is medium because misuse could corrupt the audio mix or routing intended by the user, but the effect is easily undone by re-adjusting the send amount to zero or the original value.

From the tool's definition Tool description states 'Set a send amount on a track (for routing to return tracks)' — this modifies track routing configuration, a reversible change to the audio production project.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_track_send Rate-limited

set_track_send 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": {
    "set_track_send": {
      "limits": [
        {
          "counter": "set_track_send_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 Ableton Mcp Lofifren, so you can run agents against it safely.

FAQ

Questions about set_track_send

What does the set_track_send tool do? +

Set a send amount on a track (for routing to return tracks). It is categorised as a Write tool in the Ableton Mcp Lofifren MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_track_send? +

Register the Ableton Mcp Lofifren MCP server in PolicyLayer and add a rule for set_track_send: 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 Ableton Mcp Lofifren. Nothing to install.

What risk level is set_track_send? +

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

Can I rate-limit set_track_send? +

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

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

set_track_send is provided by the Ableton Mcp Lofifren MCP server (lofifren/ableton-mcp-lofifren). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.