arcgis-starter-app

arcgis-starter-app is a skill for Claude Code from SaschaBrunnerCH/arcgis-maps-sdk-js-ai-context. It costs 50 tokens per session (6,045 once invoked), scanned A, original, MIT.

A starter setup for building map applications with the ArcGIS Maps SDK for JavaScript, TypeScript, and Vite. ArcGIS is a platform for displaying and working with geographic data, while Vite is a tool for developing and bundling web apps.

In plain words
What is it for?
Use it to scaffold ArcGIS map apps, connect them to ArcGIS accounts and access tokens, and set up React, TypeScript, Vite, linting, formatting, Git hooks, and GitHub Actions.
Why use it?
It provides a known starting structure and makes the choice between a small prototype setup and a production setup with code checks, formatting, hooks, and automated builds clearer.

Skill for Claude Code

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

Part of the arcgis-maps-sdk-js-ai-context plugin — 35 skills shipped together

Good fit Use it to scaffold ArcGIS map apps, connect them to ArcGIS accounts and access tokens, and set up React, TypeScript, Vite, linting, formatting, Git hooks, and GitHub Actions.

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Install with agentmods
npx agentmods add skills/saschabrunnerch/arcgis-maps-sdk-js-ai-context/arcgis-starter-app
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 SaschaBrunnerCH/arcgis-maps-sdk-js-ai-context --skill arcgis-starter-app
Clone the repo
git clone --depth 1 https://github.com/SaschaBrunnerCH/arcgis-maps-sdk-js-ai-context

Made for: Claude Code.

Or install arcgis-maps-sdk-js-ai-context, the plugin that ships this one along with the rest of its 35 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 arcgis-starter-app

README.md
[![agentmods](https://agentmods.dev/badge/skills/saschabrunnerch/arcgis-maps-sdk-js-ai-context/arcgis-starter-app/github.svg)](https://agentmods.dev/skills/saschabrunnerch/arcgis-maps-sdk-js-ai-context/arcgis-starter-app)
Your own site
<a href="https://agentmods.dev/skills/saschabrunnerch/arcgis-maps-sdk-js-ai-context/arcgis-starter-app"><img src="https://agentmods.dev/badge/skills/saschabrunnerch/arcgis-maps-sdk-js-ai-context/arcgis-starter-app/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 arcgis-starter-app

Your own site · 80×15
<a href="https://agentmods.dev/skills/saschabrunnerch/arcgis-maps-sdk-js-ai-context/arcgis-starter-app"><img src="https://agentmods.dev/badge/skills/saschabrunnerch/arcgis-maps-sdk-js-ai-context/arcgis-starter-app.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,045 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 $0.00050 $0.06045
Opus 5 $0.00025 $0.03023
Sonnet 5 $0.00010 $0.01209
Haiku 4.5 $0.00005 $0.00605

Measured 11d ago against content hash fa432338a026, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

arcgis-starter-app 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 11d 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.

skills/arcgis-starter-app/SKILL.md · 892 lines

How it starts

The opening of the file, as written. The whole thing — 892 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ArcGIS Starter App

Use this skill to create ArcGIS Maps SDK for JavaScript applications with TypeScript and Vite. Choose between a minimal setup for quick prototyping or a production-ready configuration with full tooling.

Prerequisites

  • ArcGIS account: An ArcGIS Location Platform, ArcGIS Online, or ArcGIS Enterprise account is required to access content and services.
  • Access token: Create an access token through your portal with appropriate privileges (basemaps, geocoding, routing, etc.) and configure allowed referrers for production use.
  • Node.js: LTS version (20+) with npm or pnpm.

Note: CSS for Map Components loads automatically when using npm — no manual CSS import for @arcgis/map-components is needed. The @arcgis/core CSS import is only required when using Core API widgets directly.

Framework Integration

React 19

Map Components are web components (custom elements). In React 19, use them directly and attach event listeners with the on prefix:

import "@arcgis/map-components/dist/components/arcgis-map";
import "@arcgis/map-components/dist/components/arcgis-zoom";

function App() {
  return (
    <arcgis-map
      basemap="topo-vector"
      center="-118.24,34.05"
      zoom={12}
      onarcgisViewReadyChange={(e: CustomEvent) => {
        const { view } = e.detail;
        console.log("View ready:", view);
      }}
    >
      <arcgis-zoom slot="top-left"></arcgis-zoom>
    </arcgis-map>
  );
}

Important: Use event listeners (e.g., onarcgisViewReadyChange) rather than calling methods directly on the element ref, since the component may not be defined yet at render time.

Angular

Add CUSTOM_ELEMENTS_SCHEMA to your module or standalone component so Angular recognizes non-Angular elements:

import { CUSTOM_ELEMENTS_SCHEMA, Component } from "@angular/core";

@Component({
  selector: "app-map",
  standalone: true,
  schemas: [CUSTOM_ELEMENTS_SCHEMA],
  template: `
    <arcgis-map basemap="topo-vector" center="-118.24,34.05" [zoom]="12">
      <arcgis-zoom slot="top-left"></arcgis-zoom>
    </arcgis-map>
  `,
})
export class MapComponent {}

Read the full file on GitHub · 892 lines

Files

What ships with it

1 file 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. 11d ago First seen · 892 lines · 50 tokens per session scan A fa432338a026

Subscribe to this mod's changes

arcgis-starter-app is a skill published in the GitHub repository SaschaBrunnerCH/arcgis-maps-sdk-js-ai-context (22 stars, last pushed 5mo ago), licensed MIT. It adds 50 tokens to every session and 6,045 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 2026-08-30.

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