Copy an entity and move the copy by (dx, dy, dz). Returns info of the new copy.
AI agents use entity_copy 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.
The tool creates a new CAD entity (a copy) and repositions it, which modifies the drawing state reversibly. While the operation does alter the document, it does not delete, destroy, or irreversibly overwrite data (Destructive), nor does it execute arbitrary code or external commands (Execute). It is therefore a Write operation.
From the tool's definition Tool description states 'Copy an entity and move the copy by (dx, dy, dz). Returns info of the new copy.' This creates new geometry in the drawing without deleting or overwriting existing data, making it a reversible modification operation.
Documented attack patterns abuse exactly the kind of access entity_copy gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and AutoCAD MCP Pro, and nothing reaches the server without passing your rules. This is the rule we recommend for entity_copy:
{
"version": "1",
"default": "deny",
"tools": {
"entity_copy": {
"limits": [
{
"counter": "entity_copy_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}entity_copy 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.
Free to start. No card required.
Copy an entity and move the copy by (dx, dy, dz). Returns info of the new copy. 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.
Register the AutoCAD MCP Pro MCP server in PolicyLayer and add a rule for entity_copy: 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.
entity_copy is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the entity_copy 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.
Set action: deny in the PolicyLayer policy for entity_copy. 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.
entity_copy 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.
Start from AutoCAD MCP Pro, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
108 AutoCAD MCP Pro tools catalogued and risk-classified — across an index of 43,000+ MCP servers.