Edit an object in FreeCAD. This tool is used when the create_object tool cannot handle the object creation. Args: doc_name: The name of the document to edit the object in. obj_name: The name of the object to edit. obj_properties: The properties of the object to edit. Returns: A message indicating...
AI agents use edit_object to create or update resources in Freecad mcp — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Freecad mcp environment.
This tool modifies object properties in FreeCAD (reversible write operation). While it operates within a CAD environment, the changes to object properties are not inherently destructive—they can be undone or reverted. It does not execute arbitrary code (unlike execute_code), does not delete data (unlike delete_object), and does not cause financial impact.
From the tool's definition Tool description states it is "used to edit an object in FreeCAD" and "modify the properties of the object". The tool modifies existing objects reversibly through property edits rather than creating or deleting.
Documented attack patterns abuse exactly the kind of access edit_object gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Freecad mcp, and nothing reaches the server without passing your rules. This is the rule we recommend for edit_object:
{
"version": "1",
"default": "deny",
"tools": {
"edit_object": {
"limits": [
{
"counter": "edit_object_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}edit_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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Edit an object in FreeCAD. This tool is used when the create_object tool cannot handle the object creation. Args: doc_name: The name of the document to edit the object in. obj_name: The name of the object to edit. obj_properties: The properties of the object to edit. Returns: A message indicating the success or failure of the object editing and a screenshot of the object. It is categorised as a Write tool in the Freecad mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Freecad MCP server in PolicyLayer and add a rule for edit_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 mcp. Nothing to install.
edit_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 edit_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 edit_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.
edit_object is provided by the Freecad MCP server (neka-nat/freecad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Freecad mcp, 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.
14 Freecad mcp tools catalogued and risk-classified — across an index of 43,000+ MCP servers.