# C4 Model

> WHAT — C4 model methodology (Context, Container, Component, Code) guidance — what to draw at each level, when, and how to render C4-inspired diagrams via Mermaid (PlantUML/Structurizr optional advanced). Methodology not renderer.

## Facts
- Page: https://tashan.sh/capability/skill-ulises-jeremias-c4-model
- tashan id: skill:ulises-jeremias/c4-model
- Source: https://github.com/ulises-jeremias/agent-toolkit
- Type: skill
- Category: design
- tashan score: 51.0 / 100
- Adoption: 14.0
- Upkeep: 99.0
- Freshness: 98.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r c4-model ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-12 by tashan (https://tashan.sh) from public evidence. Scorer s5.