# cartography-geoviz

> Claude/Codex skill by [@muend](https://omgskills.com/library/muend/index.md) · 35 stars · Updated 2026-10-17

Always invoke before answering any request to create, compare, design, or review a user-facing map, even if the request is terse or underspecified. Covers publication maps, choropleths, map series and small multiples, comparable multi-date panels, proportional/bivariate/flow maps, raster rendering, and interactive web maps. Includes classification, color, legends, projections, accessibility, and large-data aggregation. Do not trigger for a temporary diagnostic plot inside another analysis.

Tags: agent-skills, ai, ai-agents, claude-code, codex, geoai, geospatial, gis, github-copilot, google-earth-engine, lidar, machine-learning, postgis, remote-sensing, spatial-analysis, spatial-data-science

## Install

```sh
git clone https://github.com/muend/geoai-skills /tmp/geoai-skills && ln -s /tmp/geoai-skills/skills/cartography-geoviz ~/.claude/skills/cartography-geoviz
```

## From README

Cartography & Geovisualization Purpose: maps that communicate honestly. Cartographic choices (class breaks, ramps, normalization, projection) can manufacture or hide patterns; this skill treats them as analytical decisions with stated rationale, not styling. The first three questions What's the message? One map = one message. If two variables compete, consider small multiples or a bivariate scheme — not twelve legend classes. Normalized? Choropleths of raw counts are population maps in disguise. Rates, densities, or per-capita for area-based color; raw magnitudes → proportional symbols instead. Static or interactive? Print/PDF/paper → matplotlib/QGIS layout; exploration/stakeholders → Folium/MapLibre; big point data → Kepler.gl/deck.gl (GPU).

## Links

- HTML page: https://omgskills.com/library/muend/geoai-skills/skills/cartography-geoviz/
- GitHub: https://github.com/muend/geoai-skills
- Author: [@muend](https://omgskills.com/library/muend/index.md)

## More from this repo

- [arcgis-pro-automation](https://omgskills.com/library/muend/geoai-skills/skills/arcgis-pro-automation/index.md) — Automate controlled local ArcGIS Pro and ArcPy workflows through arcgis-mcp-bridge: inspect .aprx projects and file...
   - [@muend](https://omgskills.com/library/muend/index.md) · 35 stars
- [change-detection](https://omgskills.com/library/muend/geoai-skills/skills/change-detection/index.md) — Change analysis, once the observations are comparable.
   - [@muend](https://omgskills.com/library/muend/index.md) · 35 stars
- [geo-data-engineering](https://omgskills.com/library/muend/geoai-skills/skills/geo-data-engineering/index.md) — Always invoke when geospatial data must be acquired, prepared, repaired, scaled, or moved through a repeatable pipeline.
   - [@muend](https://omgskills.com/library/muend/index.md) · 35 stars