add_arrangement_marker · Flai MCP: Risk & Policy

WHAT IT DOES

What add_arrangement_marker does on Flai

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

WHY IT NEEDS A POLICY

Why add_arrangement_marker needs a policy

The tool creates or adds a new arrangement marker in FL Studio—a reversible data modification operation. This matches the Write category (creates data). The severity is low because markers are metadata about music arrangement with no destructive or external side effects. Confidence is moderate (0.75) due to the empty description; the classification relies on the tool name and server context.

From the tool's definition Tool name 'add_arrangement_marker' indicates creation of a marker; the 'add_*' prefix and context of an FL Studio music production MCP server suggest data modification. Description is empty.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_arrangement_marker Rate-limited

add_arrangement_marker 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": {
    "add_arrangement_marker": {
      "limits": [
        {
          "counter": "add_arrangement_marker_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 Flai, so you can run agents against it safely.

FAQ

Questions about add_arrangement_marker

What does the add_arrangement_marker tool do? +

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

How do I enforce a policy on add_arrangement_marker? +

Register the Flai MCP server in PolicyLayer and add a rule for add_arrangement_marker: 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 add_arrangement_marker? +

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

Can I rate-limit add_arrangement_marker? +

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

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

add_arrangement_marker 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.