set_arrangement · Clo3d MCP: Risk & Policy

WHAT IT DOES

What set_arrangement does on Clo3d

AI agents use set_arrangement to create or update resources in Clo3d — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Clo3d environment.

WHY IT NEEDS A POLICY

Why set_arrangement needs a policy

This tool creates or modifies garment design data by positioning pattern pieces on avatars. It has side effects (changes the design state) but the changes are reversible, fitting the Write category. Severity is medium because misuse could result in malformed designs requiring correction, but no financial loss, data deletion, or system compromise.

From the tool's definition Tool 'set_arrangement' places/positions a pattern piece on an avatar, which modifies the garment design state in CLO3D.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_arrangement Rate-limited

set_arrangement 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_arrangement": {
      "limits": [
        {
          "counter": "set_arrangement_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 Clo3d, so you can run agents against it safely.

FAQ

Questions about set_arrangement

What does the set_arrangement tool do? +

Place a pattern piece on an avatar arrangement point (see arrangement_list). It is categorised as a Write tool in the Clo3d 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_arrangement? +

Register the Clo3d MCP server in PolicyLayer and add a rule for set_arrangement: 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 Clo3d. Nothing to install.

What risk level is set_arrangement? +

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

Can I rate-limit set_arrangement? +

Yes. Add a rate_limit block to the set_arrangement 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_arrangement completely? +

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

set_arrangement is provided by the Clo3d MCP server (lilbonner/clo3d-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.