cesiumjs-core-utilities SKILL.md skillA
cesiumjs-core-utilities 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-core-utilities@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-core-utilities/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260827.49e0612, committed Aug 27, 2026
- First version recorded
- Apr 1, 2026
- Size
- 15,598 bytes
- Repository stars
- 194
- License
- Apache-2.0
CesiumJS core utilities and networking - Resource, Color, Event, Request, RequestScheduler, error handling, helper functions, feature detection. Use when fetching remote data, managing HTTP requests, working with colors, handling events, debugging errors, or using utility functions like defined, clone, or buildModuleUrl.
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 Core Utilities & Networking
Version baseline: CesiumJS v1.144+ (ES module imports, `defaultValue` removed in v1.134)
## Breaking Change: defaultValue Removed (v1.134)
```js
// WRONG (removed in v1.134)
const name = defaultValue(options.name, "default");
const opts = defaultValue(options, defaultValue.EMPTY_OBJECT);
// CORRECT (v1.134+)
import { Frozen } from "cesium";
const name = options.name ?? "default";
const opts = options ?? Frozen.EMPTY_OBJECT;
```
`Frozen.EMPTY_OBJECT` is `Object.freeze({})` and `Frozen.EMPTY_ARRAY` is `Object.freeze([])`. Use them as safe defaults for options objects and array parameters.
## Resource: HTTP Requests and Data Fetching
`Resource` is the unified class for all HTTP operations. It wraps URL construction, query parameters, headers, proxying, and retry logic.
### Fetching Data
```js
import { Resource } from "cesium";
// Static shorthand: accepts a URL string or options object
const jsonData = await Resource.fetchJson({ url: "https://api.example.com/data.json" });
// data: URIs work with Resource.fetchJson -- useful for inline GeoJSON or test fixtures
…Read the whole file at its exact version.
How to install
mdr add cesiumgs/cesiumjs-skills/cesiumjs-core-utilities@sha256:499ccd0874d8f6edThe 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_miefnltdr5mw3qyd)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Apr 1, 2026 and Aug 27, 2026, about one every 49 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260827.49e0612 latest | 2026-08-27 | 49e0612 | 15,598 B | A | view · diff |
| git:20260716.ba1c2d1 | 2026-07-16 | ba1c2d1 | 13,281 B | A | view · diff |
| git:20260601.e67e5c6 | 2026-06-01 | e67e5c6 | 13,281 B | A | view · diff |
| git:20260401.d67bc27 | 2026-04-01 | d67bc27 | 13,281 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 (15598 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_miefnltdr5mw3qyd GET https://markdownregistry.com/api/v1/resolve?ref=cesiumgs/cesiumjs-skills/cesiumjs-core-utilities GET https://markdownregistry.com/api/v1/blob/499ccd0874d8f6ed1d8921b634985a2aa739dcdef4ab2de22c8aebda5ebbec26
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.