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.
npx skills add CesiumGS/cesiumjs-ai-starter-app --skill czml-polylinegit clone --depth 1 https://github.com/CesiumGS/cesiumjs-ai-starter-appWrote 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.
[](https://agentmods.dev/skills/cesiumgs/cesiumjs-ai-starter-app/czml-polyline)<a href="https://agentmods.dev/skills/cesiumgs/cesiumjs-ai-starter-app/czml-polyline"><img src="https://agentmods.dev/badge/skills/cesiumgs/cesiumjs-ai-starter-app/czml-polyline/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.
<a href="https://agentmods.dev/skills/cesiumgs/cesiumjs-ai-starter-app/czml-polyline"><img src="https://agentmods.dev/badge/skills/cesiumgs/cesiumjs-ai-starter-app/czml-polyline.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00060 | $0.00433 |
| Opus 5.5 | $0.00024 | $0.00173 |
| Sonnet 5.5 | $0.00012 | $0.00087 |
| Haiku 4.5 | $0.00006 | $0.00043 |
Grade A, and why
czml-polyline 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 1mo 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.
What it actually says
CZML Polyline
- "polyline":
{ "positions": { "cartographicDegrees": [lon0, lat0, h0, lon1, lat1, h1, ...] }, "material": { "solidColor": { "color": { "rgba": [r,g,b,a] } } }, "width": <number> }— a static multi-point line, e.g. a flight path drawn as a fixed line, as opposed to a moving "position". - The "positions" list needs at least two
[lon, lat, height]triples.
Example: a static flight route with an endpoint label
[
{ "id": "document", "name": "Flight path", "version": "1.0" },
{
"id": "route",
"name": "London to Tokyo",
"polyline": {
"positions": { "cartographicDegrees": [-0.4543, 51.47, 0, 139.7798, 35.5494, 0] },
"material": { "solidColor": { "color": { "rgba": [0, 191, 255, 200] } } },
"width": 3
}
},
{
"id": "destination",
"name": "Tokyo",
"position": { "cartographicDegrees": [139.7798, 35.5494, 0] },
"label": {
"text": "Tokyo",
"font": "14px sans-serif",
"fillColor": { "rgba": [255, 255, 255, 255] }
}
}
]
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.
- 1mo ago First seen · 39 lines · 60 tokens per session scan A f04304f38048
czml-polyline is a skill published in the GitHub repository CesiumGS/cesiumjs-ai-starter-app (10 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 60 tokens to every session and 433 once invoked, about $0.0002 per session on Opus 5.5. 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.
Other skills, from other repositories
browser-use
Direct browser control via CDP for web interaction: automation, scraping, testing, screenshots, and site/app work. Also covers hosted cloud browsers for AI agents: the browser-use Python library (Browser(usecloud=True)), Playwright, Puppeteer or any CDP client.
open-source
Documentation reference for writing Python code using the browser-use open-source library. Use this skill whenever the user needs help with Agent, Browser, or Tools configuration, is writing code that imports from browseruse, asks about @sandbox deployment, supported LLM models, Actor API, custom tools, lifecycle…
crit-story
Author a crit story and continue the interactive review loop only when the user explicitly invokes crit-story or directly asks you to generate a crit story. Do not infer this skill from generic review, PR, or diff-review requests.
snip
You are an expert at writing declarative YAML filters for snip, a CLI proxy that reduces LLM token consumption by filtering shell output.
goai
GoAI is a Go SDK for AI applications. One unified API across 25+ LLM providers. Inspired by the Vercel AI SDK, adapted to Go idioms (generics, interfaces, channels).
generate-rfcs
Break the PRD into sequenced implementation RFCs under RFCs/ with an RFCS.md index, then cold-read each RFC for gaps.