next_preset · Flai MCP: Risk & Policy

WHAT IT DOES

What next_preset does on Flai

AI agents invoke next_preset to trigger actions in Flai. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why next_preset needs a policy

This tool triggers an external operation in FL Studio (advancing the plugin preset), which is a side-effecting action that changes the state of the audio software. It doesn't simply read data, nor does it create/modify persistent data in a reversible write sense — it executes a control action on an external application. Severity is low as it only changes a plugin preset which can easily be reversed.

From the tool's definition Advance to the next preset for the plugin in a channel

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

next_preset Rate-limited

next_preset stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "next_preset": {
      "limits": [
        {
          "counter": "next_preset_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Flai, so you can run agents against it safely.

FAQ

Questions about next_preset

What does the next_preset tool do? +

Advance to the next preset for the plugin in a channel. It is categorised as a Execute tool in the Flai MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on next_preset? +

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

What risk level is next_preset? +

next_preset is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit next_preset? +

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

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

next_preset is provided by the Flai MCP server (kaupau/flai-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.