cesiumjs-custom-shader SKILL.md skillA
cesiumjs-custom-shader from cesiumgs/cesiumjs-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cesiumgs/cesiumjs-skills/cesiumjs-custom-shader@git:20260827.49e0612Pins git:20260827.49e0612 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cesiumgs/cesiumjs-skills
- Path
skills/cesiumjs-custom-shader/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260827.49e0612, committed Aug 27, 2026
- First version recorded
- Apr 21, 2026
- Size
- 20,491 bytes
- Repository stars
- 194
- License
- Apache-2.0
CustomShader authoring — vertexShaderText and fragmentShaderText against VertexInput, FragmentInput, FeatureIds, Metadata, czm_modelMaterial. Use when reading EXT_mesh_features or EXT_structural_metadata property textures/tables, vertex displacement, or shading VoxelPrimitive.
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
# CesiumJS CustomShader Version baseline: CesiumJS 1.144. All imports use ES module style. `CustomShader` injects user GLSL into the `Model` / `Cesium3DTileset` / `VoxelPrimitive` rendering pipeline. It exposes glTF attributes, feature IDs, and `EXT_structural_metadata` to per-vertex and per-fragment code, and returns values through the built-in `czm_modelVertexOutput` and `czm_modelMaterial` structs. Use this skill for **writing the shader body**. Use: - `cesiumjs-materials-shaders` — for Fabric `Material`, `ImageBasedLighting`, `PostProcessStage` (bloom, SSAO, FXAA, tonemapping). - `cesiumjs-3d-tiles` — for declarative per-feature coloring via `Cesium3DTileStyle`, and for `VoxelPrimitive` setup/configuration. - `cesiumjs-models-particles` — for `Model.fromGltfAsync`, animations, `ModelFeature.getProperty()`. ## Out of scope - **Fabric `Material`** for entity polylines/polygons/walls — see `cesiumjs-materials-shaders`. - **`PostProcessStage`** screen-space effects — see `cesiumjs-materials-shaders`. - **`ImageBasedLighting`** — see `cesiumjs-materials-shaders`. …
Read the whole file at its exact version.
How to install
mdr add cesiumgs/cesiumjs-skills/cesiumjs-custom-shader@sha256:56b87733ddc4fb9cThe line at the top of this page pins the label git:20260827.49e0612, 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_tmmryr4yviwzcnol)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Apr 21, 2026 and Aug 27, 2026, about one every 43 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260827.49e0612 latest | 2026-08-27 | 49e0612 | 20,491 B | A | view · diff |
| git:20260716.ba1c2d1 | 2026-07-16 | ba1c2d1 | 19,361 B | A | view · diff |
| git:20260601.e67e5c6 | 2026-06-01 | e67e5c6 | 19,361 B | A | view · diff |
| git:20260421.9bf14a5 | 2026-04-21 | 9bf14a5 | 19,093 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 (20491 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
cesiumgs/cesiumjs-skills · 194 stars · license Apache-2.0 · pushed 2026-09-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tmmryr4yviwzcnol GET https://markdownregistry.com/api/v1/resolve?ref=cesiumgs/cesiumjs-skills/cesiumjs-custom-shader GET https://markdownregistry.com/api/v1/blob/56b87733ddc4fb9c81ce52fa5271e14e245eca8ed4fad0a00bf734fa577eb8da
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.