constrain_distance_y

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/constrain-distance-y.md

WHAT IT DOES

What constrain_distance_y does on FreeCAD Robust MCP Server

AI agents use constrain_distance_y 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 constrain_distance_y is rated Medium

This tool appears to add or modify a distance constraint on the Y-axis in a FreeCAD sketch. While constraint modifications are reversible (can be deleted or changed), they materially alter the 3D model definition. This is a Write operation because it creates or modifies design data. Severity is high because incorrect Y-distance constraints could invalidate an entire design workflow, though the effect is reversible.

From the tool's definition Tool name 'constrain_distance_y' indicates modification of sketch constraints in FreeCAD. Sibling tools like 'add_sketch_constraint', 'add_sketch_line', and 'add_sketch_arc' demonstrate this server modifies design geometry and constraints.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

constrain_distance_y Rate-limited

constrain_distance_y 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": {
    "constrain_distance_y": {
      "limits": [
        {
          "counter": "constrain_distance_y_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 constrain_distance_y call is checked against it from then on.

FAQ

Questions about constrain_distance_y

What does the constrain_distance_y tool do? +

constrain_distance_y 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 constrain_distance_y? +

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

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

Can I rate-limit constrain_distance_y? +

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

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

constrain_distance_y 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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