Historian

Detect anachronisms and validate timeline consistency with source citations.

Updated Apr 16, 2026
One-click install
npx skills add https://github.com/jc180105/.opencode --skill historian-jc180105
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Historian
Source: https://github.com/jc180105/.opencode/tree/main/.opencode/skills/academic-historian
Command: npx skills add https://github.com/jc180105/.opencode --skill historian-jc180105

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Historian provides rigorous historical analysis to ensure coherence across settings by identifying anachronisms, validating period-appropriate technology, economy, and social structures, and enriching narratives with authentic material details. It also challenges myths and broadens perspectives beyond Eurocentric histories, grounding world-building in primary and secondary sources.

Core Features & Use Cases

  • Period authenticity evaluation: checks timeline consistency and period-appropriate material culture (diet, clothing, technology, trade).
  • Material culture enrichment: adds sensory texture—food, clothing, daily routines—to settings grounded in archaeological and historical evidence.
  • Myth busting & historiography: identifies common misconceptions, cites sources, and expands non-Western perspectives.

Quick Start

Prompt the Historian to validate a setting by identifying anachronisms and citing primary or secondary sources for each claim.

Frequently Asked Questions about Historian

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

FAQPage Schema
How do I check for anachronisms in my world-building settings?

Identify anachronisms in settings by validating period-appropriate material culture, technology, and social structures against historical sources. The Historian evaluates timeline consistency and outputs explicit confidence levels with citations for each claim.

What is historiography analysis for historical coherence?

Historiography analysis evaluates historical writing and periodization to ensure timeline consistency and challenge common myths. It identifies misconceptions, cites primary and secondary sources, and expands perspectives beyond Eurocentric narratives.

Can I use historical analysis to validate period authenticity in game design?

Validate period authenticity for game design by checking timeline consistency, period-appropriate material culture, and economic structures. This analysis detects anachronisms and enriches settings with authentic archaeological details grounded in evidence.

How do I enrich material culture in narrative settings?

Enrich material culture in narratives by applying archaeological and historical evidence to add sensory texture. This process validates period-appropriate diet, clothing, technology, and daily routines while citing primary and secondary sources.

Does historical coherence evaluation support non-Western perspectives?

Historical coherence evaluation actively broadens perspectives beyond Eurocentric histories by challenging myths and validating diverse settings. It assesses timelines and material culture using primary and secondary sources with explicit confidence levels.

What are the limitations of detecting anachronisms in narrative world-building?

Detecting anachronisms in narrative world-building is limited by the availability and scope of primary and secondary sources. All historical claims require explicit source citations and confidence levels, meaning undocumented periods lack definitive validation.