mapsgl

mapsgl is a skill for Claude Code from vaisala-xweather/xweather-agent-skills. It costs 182 tokens per session (9,315 once invoked), scanned A, original, MIT.

A JavaScript software kit for adding Xweather weather and custom data layers to web maps. It works with Mapbox GL, MapLibre GL, Google Maps, or Leaflet, which are tools for displaying interactive maps.

In plain words
What is it for?
Use it to create a web map, then add, remove, style, filter, mask, or animate weather and custom data layers.
Why use it?
It gives web developers guidance for setting up and controlling weather layers without implementing the map rendering themselves.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the xweather plugin — 6 skills shipped together

Good fit Use it to create a web map, then add, remove, style, filter, mask, or animate weather and custom data layers.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vaisala-xweather/xweather-agent-skills/mapsgl
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 vaisala-xweather/xweather-agent-skills --skill mapsgl
Clone the repo
git clone --depth 1 https://github.com/vaisala-xweather/xweather-agent-skills

Made for: Claude Code.

Or install xweather, the plugin that ships this one along with the rest of its 6 skills.

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 mapsgl

README.md
[![agentmods](https://agentmods.dev/badge/skills/vaisala-xweather/xweather-agent-skills/mapsgl/github.svg)](https://agentmods.dev/skills/vaisala-xweather/xweather-agent-skills/mapsgl)
Your own site
<a href="https://agentmods.dev/skills/vaisala-xweather/xweather-agent-skills/mapsgl"><img src="https://agentmods.dev/badge/skills/vaisala-xweather/xweather-agent-skills/mapsgl/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 mapsgl

Your own site · 80×15
<a href="https://agentmods.dev/skills/vaisala-xweather/xweather-agent-skills/mapsgl"><img src="https://agentmods.dev/badge/skills/vaisala-xweather/xweather-agent-skills/mapsgl.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 182 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,315 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00182 $0.09315
Opus 5 $0.00091 $0.04658
Sonnet 5 $0.00036 $0.01863
Haiku 4.5 $0.00018 $0.00932

Measured 8d ago against content hash ff9096bace40, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mapsgl scanned grade A with 1 finding 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s https://www.xweather.com/docs/api/releases/versions \
plugins/xweather/skills/mapsgl/SKILL.md · 713 lines

How it starts

The opening of the file, as written. The whole thing — 713 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MapsGL JavaScript SDK

The MapsGL JavaScript SDK (@xweather/mapsgl) renders weather and custom map data client-side in WebGL, layered on top of Mapbox GL, MapLibre GL, Google Maps, or Leaflet. It requires an active Xweather account with Weather API + Maps access (client id + secret).

This skill is the web-based JavaScript SDK. For a native Swift app on iOS, iPadOS, Mac Catalyst, or visionOS, use the mapsgl-apple skill instead — a separate SDK with a Swift API (MapboxMapController, WeatherService.LayerCode), its own install channels, and a smaller layer set. The concepts below transfer; none of the code does. MapsGL ships for Android as well.

Always qualify the name as the MapsGL JavaScript SDK. Xweather ships an unrelated product simply called the JavaScript SDK (https://www.xweather.com/docs/javascript-sdk), so the bare term is ambiguous. Xweather's own naming for the family is MapsGL, MapsGL iOS, and MapsGL Android; "MapsGL JavaScript SDK" is the unambiguous way to name this one.

How to write MapsGL code examples

Default to a single self-contained HTML file using vanilla JavaScript and the CDN build. One file the user can save and open in a browser — CDN <script>/<link> tags, a <div> for the map, and a plain <script> block. No build step, no bundler, no package installs, no framework.

In that form, MapsGL lives on the global aerisweather.mapsgl namespace:

const account = new aerisweather.mapsgl.Account('CLIENT_ID', 'CLIENT_SECRET');
const controller = new aerisweather.mapsgl.MapboxMapController(map, { account });

Look up the current released version before writing any example. Don't reuse a version from memory or from an earlier turn — MapsGL ships often, and a stale pin is the most common thing to go wrong in otherwise-correct example code:

curl -s https://www.xweather.com/docs/api/releases/versions \
  | python3 -c 'import json,sys; print(json.load(sys.stdin)["products"]["mapsgl"]["version"])'

Read the full file on GitHub · 713 lines

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago Changed ff9096bace40
  2. 12d ago First seen · 713 lines · 182 tokens per session scan A 6581f7be3a61

Subscribe to this mod's changes

mapsgl is a skill published in the GitHub repository vaisala-xweather/xweather-agent-skills (3 stars, last pushed 11d ago), licensed MIT. It adds 182 tokens to every session and 9,315 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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