czml-cylinder

czml-cylinder is a skill for Claude Code, Codex from CesiumGS/cesiumjs-ai-starter-app. It costs 54 tokens per session (489 once invoked), scanned A, original, Apache-2.0.

A CZML cylinder describes a vertical cylinder, cone, or tapered column centered on an entity's position. Its height and top and bottom radii are measured in meters.

In plain words
What is it for?
Use it for towers, sensor volumes, columns, cones, and truncated cones.
Why use it?
It lets a globe scene represent round towers and tapered 3D forms with clear dimensions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for towers, sensor volumes, columns, cones, and truncated cones.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cesiumgs/cesiumjs-ai-starter-app/czml-cylinder
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add CesiumGS/cesiumjs-ai-starter-app --skill czml-cylinder
Clone the repo
git clone --depth 1 https://github.com/CesiumGS/cesiumjs-ai-starter-app

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for czml-cylinder

README.md
[![agentmods](https://agentmods.dev/badge/skills/cesiumgs/cesiumjs-ai-starter-app/czml-cylinder/github.svg)](https://agentmods.dev/skills/cesiumgs/cesiumjs-ai-starter-app/czml-cylinder)
Your own site
<a href="https://agentmods.dev/skills/cesiumgs/cesiumjs-ai-starter-app/czml-cylinder"><img src="https://agentmods.dev/badge/skills/cesiumgs/cesiumjs-ai-starter-app/czml-cylinder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for czml-cylinder

Your own site · 80×15
<a href="https://agentmods.dev/skills/cesiumgs/cesiumjs-ai-starter-app/czml-cylinder"><img src="https://agentmods.dev/badge/skills/cesiumgs/cesiumjs-ai-starter-app/czml-cylinder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 489 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00054 $0.00489
Opus 5 $0.00027 $0.00244
Sonnet 5 $0.00011 $0.00098
Haiku 4.5 $0.00005 $0.00049

Measured 12d ago against content hash 816b01c5f8b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

czml-cylinder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packages/codegen-czml/skills/czml-cylinder/SKILL.md · 45 lines

What it actually says

CZML Cylinder

  • "cylinder": { "length": <number>, "topRadius": <number>, "bottomRadius": <number>, "material": { "solidColor": { "color": { "rgba": [r,g,b,a] } } }, "fill": true|false, "outline": true|false, "outlineColor": { "rgba": [r,g,b,a] }, "show": true|false } — a cylinder, truncated cone, or cone centered on the entity's "position", oriented vertically by default.
  • A cone is just a cylinder with "topRadius": 0.
  • "length" is the total height in meters; "topRadius"/"bottomRadius" are in meters.

Example: a green cylinder and a red cone

[
  { "id": "document", "name": "Cylinders", "version": "1.0" },
  {
    "id": "cylinder-1",
    "position": { "cartographicDegrees": [-75, 40, 100000] },
    "cylinder": {
      "length": 200000,
      "topRadius": 100000,
      "bottomRadius": 100000,
      "material": { "solidColor": { "color": { "rgba": [0, 255, 0, 255] } } },
      "outline": true,
      "outlineColor": { "rgba": [0, 0, 0, 255] }
    }
  },
  {
    "id": "cone-1",
    "position": { "cartographicDegrees": [-73, 40, 100000] },
    "cylinder": {
      "length": 200000,
      "topRadius": 0,
      "bottomRadius": 100000,
      "material": { "solidColor": { "color": { "rgba": [255, 0, 0, 255] } } }
    }
  }
]
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 45 lines · 54 tokens per session scan A 816b01c5f8b8

Subscribe to this mod's changes

czml-cylinder is a skill published in the GitHub repository CesiumGS/cesiumjs-ai-starter-app (7 stars, last pushed 15d ago), licensed Apache-2.0. It adds 54 tokens to every session and 489 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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