generate_polyrhythm · Filopastry MCP: Risk & Policy

WHAT IT DOES

What generate_polyrhythm does on Filopastry

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

WHY IT NEEDS A POLICY

Why generate_polyrhythm needs a policy

This tool generates/creates a polyrhythm pattern for music composition. It produces output (a pattern) but does so in a music generation context with no file system writes, financial implications, or destructive actions. 'Generate' here means creating a new musical pattern, which is a Write operation at low severity since the blast radius of misuse is minimal - it only affects audio playback/pattern generation.

From the tool's definition Generate polyrhythm - creates a musical pattern using polyrhythmic structures in the Strudel.cc environment

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_polyrhythm Rate-limited

generate_polyrhythm 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": {
    "generate_polyrhythm": {
      "limits": [
        {
          "counter": "generate_polyrhythm_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 Filopastry, so you can run agents against it safely.

FAQ

Questions about generate_polyrhythm

What does the generate_polyrhythm tool do? +

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

How do I enforce a policy on generate_polyrhythm? +

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

What risk level is generate_polyrhythm? +

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

Can I rate-limit generate_polyrhythm? +

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

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

generate_polyrhythm is provided by the Filopastry MCP server (youwenshao/filopastry). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.