vcad

Generate 3D CAD models from parametric primitives and export to STL or GLB.

405|22|Updated Jan 27, 2026
One-click install
npx skills add https://github.com/ecto/vcad --skill vcad
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: vcad
Source: https://github.com/ecto/vcad/tree/main/skill
Command: npx skills add https://github.com/ecto/vcad --skill vcad

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

vcad enables automated creation of 3D CAD models for AI agents and design automation, eliminating manual CAD drafting for repetitive parametric tasks.

Core Features & Use Cases

  • Build parametric geometry from simple primitives (cube, cylinder, sphere, cone) with boolean operations, transforms, and patterns.
  • Export results to STL or GLB for 3D printing, visualization, or simulation, and inspect metrics like volume and bounding box.
  • Use cases include generating plates with holes, brackets, or mechanical components in automated pipelines fed by MCP tools.

Quick Start

Ask vcad to generate a plate with centered holes and export it as an STL file.

Frequently Asked Questions about vcad

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate 3D CAD model generation for repetitive parametric tasks?

You can automate 3D CAD model generation by using AI agents to assemble parametric primitives, apply boolean operations, and execute transforms. This eliminates manual CAD drafting for repetitive mechanical components like plates with holes and brackets.

Can I export parametric CAD models to STL or GLB for 3D printing?

Yes, you can export parametric CAD models to STL or GLB formats. These exports are suitable for 3D printing, visualization, or simulation, and you can also inspect geometric metrics like volume and bounding box.

How do I generate mechanical components like brackets using AI-driven design workflows?

To generate mechanical components like brackets, an AI-driven design workflow assembles simple primitives such as cubes, cylinders, and cones. It then applies boolean operations and patterns to construct the final parametric geometry automatically.

Does automated parametric CAD modeling work with MCP tools in design pipelines?

Yes, automated parametric CAD modeling works with MCP tools. It is designed to function within automated pipelines fed by MCP tools, enabling AI agents to drive deterministic tasks for generating mechanical components.

What are the limitations of using AI to build parametric geometry from primitives?

The approach relies on assembling simple primitives like cubes, cylinders, spheres, and cones with boolean operations. It is best suited for deterministic mechanical components and plates with holes, rather than highly complex, freeform organic modeling.

Do I need a specific directory structure to drive deterministic CAD generation tasks?

Yes, the workflow relies on a SKILL.md frontmatter with a name and description. It also uses optional scripts, references, and assets directories to drive deterministic tasks and provide supporting information for the AI agent.