layer_set_current

Set the active/current layer for new entities.

SERVERAutoCAD MCP Pro SOURCEu-c4n/autocad-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/u-c4n-autocad-mcp/layer-set-current.md

WHAT IT DOES

What layer_set_current does on AutoCAD MCP Pro

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

RISK

Why layer_set_current is rated Medium

This is a Write operation because it modifies document state (the current layer) in a reversible manner. It does not execute arbitrary commands (Execute) nor permanently destroy data (Destructive). The severity is medium because an AI agent setting layers incorrectly could cause organizational confusion or require rework, but the effect is easily corrected by setting the layer back.

From the tool's definition 'Set the active/current layer for new entities.' This tool modifies the state of the CAD document by changing which layer is active, affecting how future entities will be created and organized.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs layer_set_current safely

PolicyLayer is an MCP gateway: it sits between your AI agents and AutoCAD MCP Pro, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For layer_set_current, this is the rule to start with:

layer_set_current Rate-limited

layer_set_current 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": {
    "layer_set_current": {
      "limits": [
        {
          "counter": "layer_set_current_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect AutoCAD MCP Pro, apply this rule, and every layer_set_current call is checked against it from then on.

FAQ

Questions about layer_set_current

What does the layer_set_current tool do? +

Set the active/current layer for new entities. It is categorised as a Write tool in the AutoCAD MCP Pro MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on layer_set_current? +

Register the AutoCAD MCP Pro MCP server in PolicyLayer and add a rule for layer_set_current: 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 AutoCAD MCP Pro. Nothing to install.

What risk level is layer_set_current? +

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

Can I rate-limit layer_set_current? +

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

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

layer_set_current is provided by the AutoCAD MCP Pro MCP server (u-c4n/autocad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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