Create a copy of an object. Args: object_name: Name of the object to copy. new_name: Name for the copy. Auto-generated if None. offset: Position offset [x, y, z] for the copy. [0,0,0] if None. doc_name: Document containing the object. Uses active document if None. Returns: Dictionary with copy ob...
AI agents use copy_object to create or update resources in FreeCAD Robust MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your FreeCAD Robust MCP Server environment.
This tool creates or duplicates data within FreeCAD's document model. It is reversible (the copy can be deleted) and has no destructive, financial, or code execution components. It modifies the document by adding a new object, making it a Write operation. The blast radius is minimal since copying objects in CAD is a common, safe operation with predictable side effects limited to document state.
From the tool's definition Tool creates a copy of an object with parameters for new_name, offset, and doc_name. Description explicitly states 'Create a copy of an object' which is a reversible modification operation.
Documented attack patterns abuse exactly the kind of access copy_object gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and FreeCAD Robust MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for copy_object:
{
"version": "1",
"default": "deny",
"tools": {
"copy_object": {
"limits": [
{
"counter": "copy_object_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}copy_object 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.
Create a copy of an object. Args: object_name: Name of the object to copy. new_name: Name for the copy. Auto-generated if None. offset: Position offset [x, y, z] for the copy. [0,0,0] if None. doc_name: Document containing the object. Uses active document if None. Returns: Dictionary with copy object information: - name: Copy object name - label: Copy object label - type_id: Copy object type. It is categorised as a Write tool in the FreeCAD Robust MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for copy_object: 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 FreeCAD Robust MCP Server. Nothing to install.
copy_object 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 copy_object 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 copy_object. 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.
copy_object is provided by the FreeCAD Robust MCP Server MCP server (spkane/freecad-addon-robust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 152 FreeCAD Robust MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
152 FreeCAD Robust MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.