ara3d-sdk SKILL.md skillA
ara3d-sdk from znlgis/opengis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add znlgis/opengis-skills/ara3d-sdk@git:20261015.5d0de0dPins git:20261015.5d0de0d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- znlgis/opengis-skills
- Path
3d/ara3d-sdk/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261015.5d0de0d, committed Oct 15, 2026
- First version recorded
- Jul 17, 2026
- Size
- 20,342 bytes
- Repository stars
- 70
- License
- MIT
Use when processing AEC/BIM 3D data in .NET 8 — mesh generation and transformation, SIMD-accelerated math, IFC/STEP/PLY to glTF/GLB/VIM conversion, plugin development. Ara3D-SDK: high-performance .NET 3D geometry and BIM library suite.
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
> **项目地址：** <https://github.com/ara3d/ara3d-sdk> > > **NuGet 元包：** [`Ara3D.SDK`](https://www.nuget.org/packages/Ara3D.SDK) ｜ **Ara 3D 官网：** <https://ara3d.com> > > **许可证：** MIT ｜ **最新版本：** `1.6.1`（由仓库 `Directory.Build.props` 的 `Ara3DVersion` 统一管理，所有包共享同一版本号）｜ **默认分支：** `main` ｜ **目标框架：** `net8.0` / `net8.0-windows` ## 概述 **Ara3D-SDK** 是面向 **AEC / BIM / 数字孪生 / 三维 GIS** 场景的高性能 .NET 三维数据处理引擎与 Studio 插件框架。它有两大定位： 1. **独立的高性能三维/BIM 工具库**：加载、生成、变换、导出海量三维几何与 BIM 数据； 2. **Ara 3D Studio 桌面应用的扩展底座**：通过 `Ara3D.Studio.API` 编写生成器、修改器、命令与工具，把自研算法接入 Studio 的可视化流程图（Flow Graph）。 核心工程亮点： | 能力 | 说明 | |------|------| | **统一高性能内存模型** | `Ara3D.Memory` 提供 64 字节对齐的非托管缓冲区、`ByteSlice`、内存映射文件视图，服务 SIMD 与超大数据集 | | **SIMD 加速数学** | `Ara3D.F8`（AVX 8 宽 `float`）+ **Plato DSL** 生成的 `Vector3`/`Matrix4x4`/`Quaternion`/`Number`/`Angle` 等数学类型 | | **不可变几何内核** | `TriangleMesh3D`/`QuadGrid3D` 的所有变换均返回新对象，天然适合函数式管线与并行 | | **BIM 开放模式（BOS）** | 把 IFC/Revit 数据规约为列式 EAV 结构，可落地为 Parquet / DuckDB / Excel | | **可插拔 Studio 框架** | 几十行代码写出参数化生成器或网格修改器，实时预览 | | **零/少外部依赖** | 大多数库零外部 NuGet 依赖，便于审计与集成 | > 一句话定位：Ara3D-SDK 是「面向 AEC 的高性能 .NET 三维数据处理引擎 + Studio 插件框架」，代码结构清晰、几乎零外部依赖，也是学习现代高性能 .NET 图形/BIM 工程的范本。 …
Read the whole file at its exact version.
How to install
mdr add znlgis/opengis-skills/ara3d-sdk@sha256:452d07d3c3c5f234The line at the top of this page pins the label git:20261015.5d0de0d, 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.
[](https://markdownregistry.com/a/art_kotl62spqyj33isy)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 17, 2026 and Oct 15, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261015.5d0de0d latest | 2026-10-15 | 5d0de0d | 20,342 B | A | view · diff |
| git:20260717.0e8b261 | 2026-07-17 | 0e8b261 | 19,969 B | A | view · diff |
| git:20260717.54e357a | 2026-07-17 | 54e357a | 20,315 B | A | view · diff |
| git:20260717.a353a40 | 2026-07-17 | a353a40 | 20,041 B | A | view · diff |
| git:20260717.d27ec5a | 2026-07-17 | d27ec5a | 19,967 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (20342 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
znlgis/opengis-skills · 70 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_kotl62spqyj33isy GET https://markdownregistry.com/api/v1/resolve?ref=znlgis/opengis-skills/ara3d-sdk GET https://markdownregistry.com/api/v1/blob/452d07d3c3c5f2342e7cf1615389c8eee8217fd6c2795665c1b4210b1fcbe023
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.