cad-skills SKILL.md skillA

cad-skills from znlgis/opengis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add znlgis/opengis-skills/cad-skills@git:20261015.92a0ede

Pins git:20261015.92a0ede in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
znlgis/opengis-skills
Path
cad/SKILL.md
Versions recorded
5
Latest version
git:20261015.92a0ede, committed Oct 15, 2026
First version recorded
Sep 1, 2026
Size
5,200 bytes
Repository stars
70
License
MIT

Use when doing parametric 3D modeling, 2D drafting, geometric kernel development, BIM/IFC processing, PCB design, or AutoCAD .NET development. Index of 21 skills: FreeCAD, OpenSCAD, OCCT, CadQuery, Blender, KiCad, SolveSpace, QCAD, xBIM, Clipper2, TongWen and more.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

> **父级入口:** [../SKILL.md](../SKILL.md) — 全仓 96 技能总索引

## 概述

本分类涵盖 **21 个 CAD 项目**的技能文件,从底层几何内核到用户界面覆盖 CAD 全栈:

```
几何内核 → 参数化建模 → CAD 应用 → 数据交换 → 可视化
  (OCCT)    (FreeCAD)   (QCAD)    (LibreDWG) (Chili3D)
```

### 何时加载此索引?

- 用户问题涉及「CAD」「建模」「3D 打印」「DWG/DXF」「PCB」「BIM」
- 不确定该用 FreeCAD、OpenSCAD 还是 SolveSpace
- 需要 .NET 平台的 AutoCAD 二次开发指导

---

## 技能列表

### 🧩 几何内核与算法

| 技能 | 简介 | 关键标签 |
|------|------|---------|
| [occt](./occt/SKILL.md) | Open CASCADE Technology 三维几何内核 | `kernel` `geometry` `cpp` |
| [clipper2](./clipper2/SKILL.md) | 高性能 2D 多边形布尔运算与偏移 | `geometry` `polygon` `2d` `boolean` |
| [clipper1](./clipper1/SKILL.md) | Clipper 1.x(旧版本,仍广泛使用) | `geometry` `polygon` `2d` `boolean` |

### 🏗️ 参数化 3D CAD

| 技能 | 简介 | 关键标签 |
|------|------|---------|
| [freecad](./freecad/SKILL.md) | 开源参数化 3D CAD/BIM | `parametric` `bim` `python` |
| [openscad](./openscad/SKILL.md) | 脚本式 3D CAD(CSG) | `scripting` `csg` `3d` `parametric` |
| [cadquery](./cadquery/SKILL.md) | Python 脚本化参数化 3D CAD | `python` `occt` `3d` `parametric` |
| [solvespace](./solvespace/SKILL.md) | 轻量参数化 2D/3D CAD | `parametric` `3d` `2d` `cad` |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add znlgis/opengis-skills/cad-skills@sha256:e7ee11d54badb7df

The line at the top of this page pins the label git:20261015.92a0ede, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_juxxmv3xnpvx2pme.svg)](https://markdownregistry.com/a/art_juxxmv3xnpvx2pme)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Sep 1, 2026 and Oct 15, 2026, about one every 11 days.

versioncommittedcommitsizeaudit
git:20261015.92a0ede latest2026-10-15 92a0ede 5,200 BA view · diff
git:20261015.45b67dd2026-10-15 45b67dd 5,083 BA view · diff
git:20260909.72be5542026-09-09 72be554 4,998 BA view · diff
git:20260902.91261022026-09-02 9126102 4,998 BA view · diff
git:20260901.fb2a04d2026-09-01 fb2a04d 4,714 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5200 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

znlgis/opengis-skills · 70 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_juxxmv3xnpvx2pme
GET https://markdownregistry.com/api/v1/resolve?ref=znlgis/opengis-skills/cad-skills
GET https://markdownregistry.com/api/v1/blob/e7ee11d54badb7df63a7d16298cf51072f56b0a65575e453560aaf837d722eff

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from znlgis/opengis-skills

3d-skills SKILL.md skill
znlgis/opengis-skills · 3d/SKILL.md · Use when working with 3D Gaussian Splatting (3DGS), .ply model cleanup/compression/publishing, interactive 360-degree…
git:20261015.92a0ede · audit A · 70 stars
ara3d-sdk SKILL.md skill
znlgis/opengis-skills · 3d/ara3d-sdk/SKILL.md · Use when processing AEC/BIM 3D data in .NET 8 — mesh generation and transformation, SIMD-accelerated math, IFC/STEP/PLY…
git:20261015.5d0de0d · audit A · 70 stars
elements SKILL.md skill
znlgis/opengis-skills · 3d/elements/SKILL.md · Use when generating building information models (BIM) programmatically in C#/.NET — wall, beam, column, floor creation…
git:20261015.5d0de0d · audit A · 70 stars
open3d SKILL.md skill
znlgis/opengis-skills · 3d/open3d/SKILL.md · Use when processing 3D point clouds and meshes in Python — read/write PLY/PCD, voxel downsample, normal estimation…
git:20261015.5c73bb3 · audit A · 70 stars
opencsg-net SKILL.md skill
znlgis/opengis-skills · 3d/opencsg-net/SKILL.md · Use when doing constructive solid geometry (CSG) modeling in .NET — cube/sphere/cylinder primitives…
git:20261015.5d0de0d · audit A · 70 stars
photo-sphere-viewer SKILL.md skill
znlgis/opengis-skills · 3d/photo-sphere-viewer/SKILL.md · Use when displaying 360-degree panoramic images (equirectangular/cubemap/dual-fisheye) in web applications, building…
git:20261015.5d0de0d · audit B · 70 stars
supersplat SKILL.md skill
znlgis/opengis-skills · 3d/supersplat/SKILL.md · Use when editing 3D Gaussian Splatting (3DGS) .ply models in browser — cleanup noise/floaters, crop, transform…
git:20261015.0e107e3 · audit A · 70 stars
opengis-skills SKILL.md skill
znlgis/opengis-skills · SKILL.md · Use when AI coding assistant needs GIS/CAD/C#/AI/IoT/3D domain expertise. Index of 96 skills across 8 categories: gis…
git:20261015.92a0ede · audit A · 70 stars
ai-skills SKILL.md skill
znlgis/opengis-skills · ai/SKILL.md · Use when building LLM applications, RAG knowledge bases, AI agents, terminal coding agents, multi-model orchestration…
git:20261015.92a0ede · audit A · 70 stars
deepseek-harness SKILL.md skill
znlgis/opengis-skills · ai/deepseek-harness/SKILL.md · Use when building AI agent applications with a plugin-based architecture — Web UI, CLI, Python SDK, Cordis plugin…
git:20261015.0e107e3 · audit B · 70 stars
dify SKILL.md skill
znlgis/opengis-skills · ai/dify/SKILL.md · Use when building LLM applications with visual workflow — RAG knowledge bases, AI agents, chatbots with drag-and-drop…
git:20261015.0e107e3 · audit A · 70 stars
docutranslate SKILL.md skill
znlgis/opengis-skills · ai/docutranslate/SKILL.md · Use when translating documents locally via LLM — PDF, Word, Excel, Markdown, SRT subtitles with format preservation…
git:20261015.0e107e3 · audit B · 70 stars

Every file in znlgis/opengis-skills

Browse by kind, by grade A, or by owner.