expert-cartographer

Validate geographic accuracy and map consistency for Purria worldbuilding.

Updated Aug 23, 2026

Search Tags:#mapping #worldbuilding #geography #cartography #earth-analog #map-quality #distance-calculation

Ready to run

npx skills add https://github.com/ccalebcarter/purria-skills --skill expert-cartographer

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: expert-cartographer
Source: https://github.com/ccalebcarter/purria-skills/tree/main/skills/expert-cartographer
Command: npx skills add https://github.com/ccalebcarter/purria-skills --skill expert-cartographer

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill provides professional geographic consultation to ensure maps for Purria are geographically accurate, internally consistent, and visually credible across narrative materials.

Core Features & Use Cases

Geographic accuracy validation: checks locations, distances, scales, and terrain plausibility against Earth analogs.
Earth-analog validation: maps Veranthos, Capital, Neu Orleans to Earth analog regions with consistent references.
Map quality standards: defines scale bars, compass orientation, and coherent coastlines, rivers, and terrain.
Cartographic instruction and review: outputs guidance and prompts for map generation, reviews, and revisions.

Quick Start

Instruct the model to perform a geospatial review of a map aligning Veranthos with the Pacific Northwest, Capital with Northern California, and Neu Orleans with the Gulf Coast, ensuring scale, terrain, and trade routes are geologically plausible.

Frequently Asked Questions about expert-cartographer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I validate geographic accuracy for fantasy worldbuilding maps?▼

Geographic accuracy validation checks fantasy worldbuilding maps against Earth-analog regions to ensure distances, terrain features, and scales remain plausible. It maps locations to real-world counterparts, applying consistent references to verify spatial relationships.

What is Earth-analog distance calculation and how does it work for map scale maintenance?▼

Earth-analog distance calculation computes distances by aligning fictional regions with real-world counterparts. It maps locations like Veranthos to the Pacific Northwest, ensuring map scale maintenance and terrain plausibility remain consistent across the worldbuilding project.

How do I perform a consistency audit for terrain features across multiple worldbuilding locations?▼

A consistency audit reviews terrain plausibility, coastlines, and rivers across locations like Veranthos, Capital, and Neu Orleans. It validates that geographic features align with mapped Earth analogs and adhere to defined map-quality criteria.

Can I use Earth-analog mapping for worldbuilding regions outside of the predefined Purria locations?▼

Earth-analog mapping applies specifically to Purria worldbuilding locations: Veranthos, Capital, and Neu Orleans. It aligns these locations with the Pacific Northwest, Northern California, and the Gulf Coast to maintain consistent geographic references.

What are the map-quality criteria for coherent coastlines, rivers, and terrain in cartographic design?▼

Map-quality criteria require coherent coastlines, rivers, and terrain validated against Earth-analog regions. The standards define scale bars, compass orientation, and terrain feature plausibility to ensure maps remain visually credible and internally consistent.

Best way to check terrain plausibility and distance consistency for fictional maps?▼

The best way to check terrain plausibility is through geospatial review using Earth-analog validation. This approach verifies geological plausibility of scales, terrain features, and trade routes by comparing fictional locations to real-world regions.