Delete an object from a FreeCAD document. Args: object_name: Name of the object to delete. doc_name: Document containing the object. Uses active document if None. Returns: Dictionary with delete result: - success: Whether delete was successful
AI agents call delete_object to permanently remove resources in FreeCAD Robust MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool irreversibly deletes data (a FreeCAD object) and cannot be undone programmatically by the tool itself. Deletion operations that cannot be reversed fall under the Destructive category, which is more severe than Write. While the blast radius is limited to a single document object (not system-wide), the permanent loss of design work represents a high severity risk.
From the tool's definition Tool name is 'delete_object' and description explicitly states 'Delete an object from a FreeCAD document.' The operation removes an object irreversibly from a CAD document.
Documented attack patterns abuse exactly the kind of access delete_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 delete_object:
{
"version": "1",
"default": "deny",
"hide": [
"delete_object"
]
}delete_object disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
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Delete an object from a FreeCAD document. Args: object_name: Name of the object to delete. doc_name: Document containing the object. Uses active document if None. Returns: Dictionary with delete result: - success: Whether delete was successful. It is categorised as a Destructive tool in the FreeCAD Robust MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for delete_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.
delete_object is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_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 delete_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.
delete_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.