# Pencil Dev Skill

> Teaches AI coding tools to design and edit pencil.dev UI files (.pen format) through the Pencil MCP server. Every read and write goes through the MCP for schema validation. Live screenshots show the design as it looks, and the MCP keeps your changes and the editor in sync while the canvas is open. Recognises pencil.dev signals automatically: mentions of .pen, .lib.pen, the Pencil canvas, or a design-system folder all activate the skill. Works with Claude Code, Codex, Gemini CLI, Copilot CLI, an

## Facts
- Page: https://tashan.sh/capability/plugin-nisus74-pencil-skill-pencil-dev-skill
- tashan id: plugin:nisus74/pencil-skill/pencil-dev-skill
- Source: https://github.com/Nisus74/pencil-skill
- Type: plugin
- Category: other
- tashan score: 50.0 / 100
- Adoption: 27.0
- Upkeep: 75.0
- Freshness: 84.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: solid
- GitHub stars: 15
- License: MIT
- Official: no

## Install

```sh
/plugin marketplace add anthropics/claude-plugins-community
/plugin install pencil-dev-skill@claude-community
```

## 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 2026-09-13 by tashan (https://tashan.sh) from public evidence. Scorer s5.