add_sketch_rectangle

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/add-sketch-rectangle.md

WHAT IT DOES

What add_sketch_rectangle does on FreeCAD Robust MCP Server

AI agents use add_sketch_rectangle 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 add_sketch_rectangle is rated Medium

This tool adds a rectangle geometry to a FreeCAD sketch. This is a Write operation because it creates or modifies design data (sketch geometry) in a way that can be undone. Severity is medium because misuse could corrupt a design file or create unwanted geometry, but the impact is limited to the current design document and is fully reversible.

From the tool's definition Tool name is 'add_sketch_rectangle' with empty description. Sibling tools include add_sketch_arc, add_sketch_line, add_sketch_point, add_sketch_polygon—all constructive sketch operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_sketch_rectangle 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 add_sketch_rectangle, this is the rule to start with:

add_sketch_rectangle Rate-limited

add_sketch_rectangle 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": {
    "add_sketch_rectangle": {
      "limits": [
        {
          "counter": "add_sketch_rectangle_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 add_sketch_rectangle call is checked against it from then on.

FAQ

Questions about add_sketch_rectangle

What does the add_sketch_rectangle tool do? +

add_sketch_rectangle 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 add_sketch_rectangle? +

Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for add_sketch_rectangle: 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 add_sketch_rectangle? +

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

Can I rate-limit add_sketch_rectangle? +

Yes. Add a rate_limit block to the add_sketch_rectangle 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 add_sketch_rectangle completely? +

Set action: deny in the PolicyLayer policy for add_sketch_rectangle. 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 add_sketch_rectangle? +

add_sketch_rectangle 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.

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