Scale an object uniformly or non-uniformly. Creates a new scaled copy using Part.Scale. Args: object_name: Name of the object to scale. scale: Scale factor. Can be: - A single float for uniform scaling - A list [sx, sy, sz] for non-uniform scaling result_name: Name for the result object. Auto-gen...
AI agents use scale_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.
The tool creates a new object (scaled copy) in the FreeCAD document. This is a reversible write operation — it adds a new object but does not delete the original. No code execution, financial action, or irreversible destruction is involved.
From the tool's definition Creates a new scaled copy using Part.Scale
Documented attack patterns abuse exactly the kind of access scale_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 scale_object:
{
"version": "1",
"default": "deny",
"tools": {
"scale_object": {
"limits": [
{
"counter": "scale_object_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
} scale_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.
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Scale an object uniformly or non-uniformly. Creates a new scaled copy using Part.Scale. Args: object_name: Name of the object to scale. scale: Scale factor. Can be: - A single float for uniform scaling - A list [sx, sy, sz] for non-uniform scaling result_name: Name for the result object. Auto-generated if None. doc_name: Document containing the object. Uses active document if None. Returns: Dictionary with result object information: - name: Result object name - label: Result object label - type_id: Result 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 scale_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.
scale_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 scale_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 scale_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.
scale_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.
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152 FreeCAD Robust MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.