layer_hide

Turn off a layer (entities invisible but still processed in regeneration).

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-hide.md

WHAT IT DOES

What layer_hide does on AutoCAD MCP Pro

AI agents use layer_hide 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_hide is rated Medium

This tool modifies CAD drawing state by changing a layer's visibility property. While not destructive (the layer and entities persist), it is a mutation operation that alters the document structure and visual presentation. The reversible nature (layer can be re-shown) and lack of data deletion place it in Write rather than Execute or Destructive.

From the tool's definition layer_hide turns off a layer, making entities invisible but still processed in regeneration. This modifies layer properties (visibility state) reversibly—the layer can be unhidden.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs layer_hide 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_hide, this is the rule to start with:

layer_hide Rate-limited

layer_hide 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_hide": {
      "limits": [
        {
          "counter": "layer_hide_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_hide call is checked against it from then on.

FAQ

Questions about layer_hide

What does the layer_hide tool do? +

Turn off a layer (entities invisible but still processed in regeneration). 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_hide? +

Register the AutoCAD MCP Pro MCP server in PolicyLayer and add a rule for layer_hide: 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_hide? +

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

Can I rate-limit layer_hide? +

Yes. Add a rate_limit block to the layer_hide 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_hide completely? +

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

layer_hide 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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