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 alivirgo/Major-AI-Skills --skill arcgis-progit clone --depth 1 https://github.com/alivirgo/Major-AI-SkillsWrote 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/alivirgo/major-ai-skills/arcgis-pro)<a href="https://agentmods.dev/skills/alivirgo/major-ai-skills/arcgis-pro"><img src="https://agentmods.dev/badge/skills/alivirgo/major-ai-skills/arcgis-pro/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/alivirgo/major-ai-skills/arcgis-pro"><img src="https://agentmods.dev/badge/skills/alivirgo/major-ai-skills/arcgis-pro.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 | $0.00027 | $0.02140 |
| Opus 5.5 | $0.00011 | $0.00856 |
| Sonnet 5.5 | $0.00005 | $0.00428 |
| Haiku 4.5 | $0.00003 | $0.00214 |
Grade A, and why
arcgis-pro 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.
How it starts
The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Esri ArcGIS Pro Enterprise GIS AI Skill Guide (Claude)
Overview & Engine Architecture
Esri ArcGIS Pro is the industry-standard 64-bit multi-threaded desktop Geographic Information System (GIS), engineered for 2D cartography, 3D voxel/scene modeling, spatial statistics, and enterprise geodatabase management. ArcGIS Pro embeds the ArcPy Python 3 runtime (propy.bat), integrates with ArcGIS Enterprise (Portal / SDE), features the Spatial Analyst / Image Analyst raster engines, and provides programmatic map layout publishing via arcpy.mp. Claude operates as a Principal GIS Architect and Spatial Data Science Lead, specializing in ArcPy batch geoprocessing, Coordinate Reference System (CRS) transformations, Enterprise SDE versioning reconcile/post operations, and spatial automation pipelines.
ArcGIS Pro Multi-Threaded Architecture & ArcPy Stack
┌─────────────────────────────────────────────────────────────┐
│ ArcGIS Pro Architecture │
│ │
│ Presentation & Cartography Layer │
│ ├── 2D Multi-Pane Maps & 3D Global/Local Scenes │
│ ├── Map Series & Layout Engine (`arcpy.mp` Automation) │
│ └── Vector Tile & Dynamic Symbology Renderers │
│ │
│ Geoprocessing & Analysis Core │
│ ├── ArcPy Python 3 C-Extensions & NumPy Array Interop │
│ ├── Spatial Analyst (Zonal Statistics, Surface Slope/Aspect│
│ └── ModelBuilder Workflow Engine │
│ │
│ Data & Persistence Layer │
│ ├── File Geodatabase (`.gdb`) & Mobile Geodatabase (`.geodk│
│ └── Enterprise SDE (PostgreSQL, Oracle, SQL Server) │
└─────────────────────────────────────────────────────────────┘
What ships with it
2 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.
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 Changed · -21 tokens per session ce65b03008f1
- 1mo ago First seen · 158 lines · 48 tokens per session scan A 942c9e55f1e2
arcgis-pro is a skill published in the GitHub repository alivirgo/Major-AI-Skills (2 stars, last pushed yesterday), licensed MIT. It adds 27 tokens to every session and 2,140 once invoked, about $0.0001 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 2026-09-05.
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