constrain_tangent

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-tangent.md

WHAT IT DOES

What constrain_tangent does on FreeCAD Robust MCP Server

AI agents use constrain_tangent 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_tangent is rated Medium

Based on the naming pattern and context of sibling tools (add_sketch_constraint, add_sketch_circle, etc.), 'constrain_tangent' likely adds a tangent constraint to sketch geometry in FreeCAD, which is a reversible write/modification operation. The description is empty, reducing confidence, but the tool name and server context strongly suggest it modifies sketch data by adding a geometric constraint.

From the tool's definition Tool name 'constrain_tangent' on a FreeCAD MCP server with sibling tools like 'add_sketch_constraint', 'add_sketch_line', etc.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

constrain_tangent Rate-limited

constrain_tangent 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_tangent": {
      "limits": [
        {
          "counter": "constrain_tangent_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_tangent call is checked against it from then on.

FAQ

Questions about constrain_tangent

What does the constrain_tangent tool do? +

constrain_tangent 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_tangent? +

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

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

Can I rate-limit constrain_tangent? +

Yes. Add a rate_limit block to the constrain_tangent 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_tangent completely? +

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

constrain_tangent 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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