# Webxdc Builder

> Build WebXDC apps for Delta Chat — static HTML apps or Familiar apps with a Claude backend. Use when a user asks to build an app, game, tool, dashboard, or interactive experience in their chat. Also use proactively whenever the conversation calls for visual output — UI mockups, design comparisons, before/after demos, diagrams, charts, data visualizations, ASCII-art-replacement layouts — to show in a WebXDC app rather than describe in markdown. If you'd otherwise build a standalone HTML page, demo site, or static web preview to show the user something, build it as a WebXDC and send via dcsendwebxdc instead — it renders inline in the chat, stays accessible from the DC app list, and works on any device.

## Facts
- Page: https://tashan.sh/capability/skill-jhayashi-webxdc-builder
- tashan id: skill:jhayashi/webxdc-builder
- Source: https://github.com/jhayashi/dc-claude-channel
- Type: skill
- Category: design
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 80.0
- Freshness: 96.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- GitHub stars: 2
- License: MIT
- Official: no

## Install

```sh
cp -r webxdc-builder ~/.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 2026-08-15 by tashan (https://tashan.sh) from public evidence. Scorer s5.