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CAD Agent

Render build123d CAD models as PNGs and engineering views via HTTP or MCP.

31|6|Updated Jan 24, 2026
Search Tags:#rendering#mcp#build123d#cad#3d-printing#mechanical design#technical drawings
One-click install
npx skills add https://github.com/Svetlana-DAO-LLC/cad-agent --skill cad-agent-svetlana-dao-llc
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: CAD Agent
Source: https://github.com/Svetlana-DAO-LLC/cad-agent/tree/main
Command: npx skills add https://github.com/Svetlana-DAO-LLC/cad-agent --skill cad-agent-svetlana-dao-llc

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

CAD-capable AI agents often generate build instructions as code but lack visual feedback, so they “guess” at geometry correctness and require slow human screenshot-and-retry loops.

Core Features & Use Cases

  • Render immediate visual feedback: Send build123d modeling code to the server and get back rendered PNGs the agent can inspect.
  • Create/modify models via API or MCP: Build, update, and enumerate models inside a containerized workflow suitable for automated iteration.
  • Generate engineering-style views and exports: Request 3D renders, 2D technical drawings/blueprints, and export printable formats (STL/STEP/3MF), plus basic printability checks.
  • Use Case: Iterate on a mechanical part (e.g., center a hole, adjust clearance, verify dimensions) by generating code, rendering, and refining based on the images and measurements—without manual screenshot relay.

Quick Start

Start the container server, then ask your AI to create a part by sending build123d code to POST /model/create and immediately request a visualization with POST /render/3d for the same model.

Frequently Asked Questions about CAD Agent

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

FAQPage Schema
How do I get visual rendering feedback for AI-generated build123d CAD models?▼

You can get visual rendering feedback by sending build123d modeling code to a containerized server, which returns rendered PNG images and engineering views that your AI agent inspects to verify geometry correctness.

Can I automate 3D-print readiness checks for parametric parts without manual screenshots?▼

Yes, you can automate 3D-print readiness checks by requesting model measurements and exporting printable formats like STL, STEP, or 3MF directly through HTTP or MCP tooling endpoints, eliminating manual screenshot loops.

Does CAD Agent work with MCP tooling endpoints for iterative mechanical design?▼

Yes, CAD Agent works with MCP tooling endpoints to build, update, and enumerate models inside a containerized workflow, enabling iterative mechanical design where agents generate code and refine parts based on returned image outputs.

What's the best way to generate 2D technical drawings from build123d code?▼

The best way to generate 2D technical drawings from build123d code is to request engineering-style blueprint views through the rendering API, which produces visual exports alongside 3D renders and model measurements.

Do I need a containerized execution environment to run build123d rendering workflows?▼

Yes, a containerized execution environment is required to safely run build123d code and return image outputs and model measurements through HTTP or MCP tooling endpoints for AI-driven visual verification.

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