entity_extend

A write tool on the AutoCAD MCP Pro MCP server.

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/entity-extend.md

WHAT IT DOES

What entity_extend does on AutoCAD MCP Pro

AI agents use entity_extend 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 entity_extend is rated Medium

Based on the tool name, 'entity_extend' likely extends a CAD entity (e.g., a line or arc) to meet a boundary, which is a reversible modification of existing data. This fits the Write category. However, the empty description significantly lowers confidence. Severity is medium given that modifying CAD entities in a production drawing could have meaningful but recoverable consequences.

From the tool's definition Tool name: 'entity_extend' — no description provided.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

entity_extend Rate-limited

entity_extend 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": {
    "entity_extend": {
      "limits": [
        {
          "counter": "entity_extend_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 entity_extend call is checked against it from then on.

FAQ

Questions about entity_extend

What does the entity_extend tool do? +

entity_extend is a write tool on the AutoCAD MCP Pro MCP server. 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 entity_extend? +

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

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

Can I rate-limit entity_extend? +

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

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

entity_extend 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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