create_datum_line

A write tool on the FreeCAD Robust MCP server.

SERVERFreeCAD Robust MCP Server SOURCEspkane/freecad-addon-robust-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/spkane-freecad-addon-robust-mcp-server/create-datum-line.md

WHAT IT DOES

What create_datum_line does on FreeCAD Robust MCP Server

AI agents use create_datum_line 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.

RISK

Why create_datum_line is rated Medium

This tool creates a datum line object in FreeCAD, which is a reversible Write operation (objects can be deleted). While it modifies the CAD model state, datum lines are standard modeling elements that can be undone or removed. The impact is limited to the CAD project file being edited, not the underlying system.

From the tool's definition Tool name 'create_datum_line' indicates creation of a geometric datum object in FreeCAD. The sibling tools (add_sketch_arc, add_sketch_circle, add_sketch_line, etc.) are all geometry creation operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_datum_line safely

PolicyLayer is an MCP gateway: it sits between your AI agents and FreeCAD Robust MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_datum_line, this is the rule to start with:

create_datum_line Rate-limited

create_datum_line 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_datum_line": {
      "limits": [
        {
          "counter": "create_datum_line_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect FreeCAD Robust MCP Server, apply this rule, and every create_datum_line call is checked against it from then on.

FAQ

Questions about create_datum_line

What does the create_datum_line tool do? +

create_datum_line is a write tool on the FreeCAD Robust MCP Server MCP server. 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.

How do I enforce a policy on create_datum_line? +

Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for create_datum_line: 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.

What risk level is create_datum_line? +

create_datum_line is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_datum_line? +

Yes. Add a rate_limit block to the create_datum_line 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.

How do I block create_datum_line completely? +

Set action: deny in the PolicyLayer policy for create_datum_line. 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.

What MCP server provides create_datum_line? +

create_datum_line 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.

KEEP EXPLORING

More on FreeCAD Robust MCP Server, and thousands of servers like it.

This server

All 152 FreeCAD Robust MCP Server tools →

Across the catalogue

create_task on 0rca Dojo MCP Server →create-task on Kanban MCP Server →create_package_backup on Android Forensics ADB MCP Server →create_project on Stitch MCP Server → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →