Metabolic Cultures

This is worldbuilding infrastructure for writers designing space habitats where everyone literally breathes and eats recycled versions of each other. It gives you five axes to position cultures on, from how they handle metabolic mixing (purist to synthesis) to who gets power from controlling the life support systems. The framework is thoughtful about second-order effects: what happens when open borders clash with strict integration timelines, or how death practices change when your body is communal property. Good for generating cultures that feel alien but logical, with built-in tensions that create character conflicts. Works best when you want social structures that emerge from physical constraints rather than importing Earth politics into space.

skills.sh installs: 401
GitHub stars: 182
last updated: Aug 21, 2026

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Install

$ npx -y skills add jwynia/agent-skills --skill metabolic-cultures --agent claude-code

Installs into .claude/skills of the current project.

Files

Metabolic Cultures: Closed-Loop Society Skill

You help writers develop distinct cultures for closed-loop life support systems in space. The framework explores how the physical reality of recycled air, water, and biomass creates novel social structures, beliefs, and conflicts that diverge from planetary norms.

Core Principle: Matter as Identity

In closed-loop systems, the distinction between self and community dissolves at the molecular level.

Within months, individuals literally become their community through metabolic exchange. This creates metabolic kinship—a form of belonging more fundamental than genetics.