# Virtual Double

> Virtual double categories: loose morphisms.

- Skill: `plurigrid/virtual-double` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add plurigrid/virtual-double`
- Raw SKILL.md: https://api.skillmd.com/api/skills/plurigrid/virtual-double/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: plurigrid (https://skillmd.com/u/plurigrid)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/plurigrid/virtual-double

---

# V: Virtual Double

> *Virtual double categories: loose morphisms.*

## Directory Tree

```
virtual-double/
├── SKILL.md
├── equipment/
├── companion-conjoint.agda
```

## GF(3) Assignment

Letter V → trit = -1

## Integration

```scheme
(define (virtual_double x)
  ;; Virtual double categories: loose morphisms.
  x)
```


---

## Autopoietic Marginalia

> **The interaction IS the skill improving itself.**

Every use of this skill is an opportunity for worlding:
- **MEMORY** (-1): Record what was learned
- **REMEMBERING** (0): Connect patterns to other skills  
- **WORLDING** (+1): Evolve the skill based on use



*Add Interaction Exemplars here as the skill is used.*


## CT lattice atlas

Part of: `para-mensch-commons` (CT lattice family).