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cad

Turn written specifications into working CAD models instantly. This skill converts natural language descriptions into parametric parts and assemblies, letting you design and iterate without touching traditional CAD interfaces. Perfect for rapid prototyping and design exploration.

Yes. cad converts natural language specifications directly into parametric CAD parts and assemblies. Describe your design requirements in plain text—dimensions, features, materials, constraints—and cad generates a working model you can inspect, measure, and refine without opening traditional CAD software.

AI-generated summary based on this skill's SKILL.md

10,959 1,183 MITupdated by earthtojake

Decision gist · record as of 2026-07-11

Yes. cad converts natural language specifications directly into parametric CAD parts and assemblies. Describe your design requirements in plain text—dimensions, features, materials, constraints—and cad generates a working model you can inspect, measure, and refine without opening traditional CAD software.

manual: git clone https://github.com/earthtojake/text-to-cad → cp -r text-to-cad/skills/cad ~/.claude/skills/cad
skills/cad/SKILL.md · version a3c59ea5

Use it when

  • cad exports multiple formats to suit your workflow.
  • cad validates STEP geometry by inspecting features, measuring holes, counterbores, and other mechanical details.

Verify before relying

Read SKILL.md below before installing (60 files). Open directory: indexed for reading, not audited.

Same gist for agents: .md · .json

Install

earthtojake/text-to-cad/cad · repository language: JavaScript

Open directory. Skills are indexed for reading, not audited. Review a skill's body before installing it.

Frequently asked questions

AI-generated answers based on this skill's SKILL.md and metadata

Can cad create a parametric CAD part from description?

Yes. cad converts natural language specifications directly into parametric CAD parts and assemblies. Describe your design requirements in plain text—dimensions, features, materials, constraints—and cad generates a working model you can inspect, measure, and refine without opening traditional CAD software.

What file formats does cad export?

cad exports multiple formats to suit your workflow. Generate STEP/STP files for parametric geometry validation and measurement, STL for 3D printing, 3MF for advanced printing workflows, and GLB for web viewing and collaboration. Each export preserves your model's precision and feature structure.

How does cad handle geometry inspection and measurement?

cad validates STEP geometry by inspecting features, measuring holes, counterbores, and other mechanical details, and checking assembly mating and alignment. Use selector references to identify and inspect specific parts within your model, ensuring dimensions and constraints match your specifications before manufacturing.

Can cad design mechanical features like holes and joints?

Yes. cad specializes in mechanical design, creating features such as holes, counterbores, standoffs, mounting points, and assembly joints from your written specs. It builds complete fixtures and enclosures with proper mating constraints, letting you iterate rapidly without manual CAD modeling.

How do I modify an existing CAD part with cad?

Describe the changes you want in natural language—adjust dimensions, add features, remove geometry, or refine constraints. cad reads your existing model and applies modifications parametrically, preserving relationships and enabling quick design exploration and validation.

Is cad suitable for rapid prototyping workflows?

Absolutely. cad accelerates design iteration by turning specifications into working models instantly, eliminating the learning curve of traditional CAD interfaces. Snapshot your designs for review, export to multiple formats, and refine based on feedback—all through natural language commands.

SKILL.md

Rendered from the published skill. Quoted content, verbatim.

CAD generation, inspection, and validation

Provenance: maintained in earthtojake/text-to-cad. Use the installed local skill files as the runtime source of truth; the repository link is only for provenance and release review.

Purpose

Create or modify parametric CAD models from natural-language requirements, generate validated STEP/STP artifacts, inspect geometry references, and return checked outputs. Treat STEP as the primary CAD artifact. Treat STL, 3MF, and native GLB as secondary export workflows that branch from a STEP-first process. For assemblies, prefer cadpy.assembly.AssemblyHelper with source-level build123d joints, named mating datums, and native labels when the parts have functional assembly

(truncated - see the full file via the links below)

File tree — 15 files
skills/cad/LICENSE
skills/cad/SKILL.md
skills/cad/agents/openai.yaml
skills/cad/references/build123d-modeling.md
skills/cad/references/cad-brief.md
skills/cad/references/inspection-and-validation.md
skills/cad/references/parameters.md
skills/cad/references/positioning.md
skills/cad/references/repair-loop.md
skills/cad/references/snapshot-review.md
skills/cad/references/step-generation.md
skills/cad/references/supported-exports.md
skills/cad/requirements.txt
skills/cad/scripts/inspect/__main__.py
skills/cad/scripts/inspect/cli.py

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Tags
parametric-designstep-exportmechanical-assemblygeometry-validationbuild123d-frameworkcad-inspectionfeature-modelingmesh-conversiondesign-automationpart-positioning