draw_line · AutoCAD MCP Server MCP: Risk & Policy

WHAT IT DOES

What draw_line does on AutoCAD MCP Server

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

WHY IT NEEDS A POLICY

Why draw_line needs a policy

The tool creates new data (a line object) in an AutoCAD drawing, which is a Write-category operation. It is not Read (no query/retrieval), not Execute (no code execution or external system calls), not Destructive (changes are reversible), and not Financial.

From the tool's definition Tool name 'draw_line' with description 'Draw a straight line between two points in AutoCAD' indicates creation of new geometric entities in a CAD document. This is a reversible modification—lines can be deleted or modified without permanent loss.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

draw_line Rate-limited

draw_line 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": {
    "draw_line": {
      "limits": [
        {
          "counter": "draw_line_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 AutoCAD MCP Server, so you can run agents against it safely.

FAQ

Questions about draw_line

What does the draw_line tool do? +

Draw a straight line between two points in AutoCAD. It is categorised as a Write tool in the AutoCAD MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on draw_line? +

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

What risk level is draw_line? +

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

Can I rate-limit draw_line? +

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

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

draw_line is provided by the AutoCAD MCP Server MCP server (porta048/autocad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.