# HTML
> Create interactive calculators, configurators, dashboards, widgets, and prototypes as self-contained HTML artifacts.
- Skill: `modsetter/html` (Agent Skill)
- Install (CLI): `npx skillmds@latest add modsetter/html`
- Raw SKILL.md: https://api.skillmd.com/api/skills/modsetter/html/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: MODSetter (https://skillmd.com/u/modsetter)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/modsetter/html
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# Interactive HTML
Create one interactive HTML fragment in `/workspace`. Everything required is
available in the browser; never install or download dependencies.
## Authoring contract
- Emit a fragment only. Do not include ``, ``, ``, or
``; the artifact viewer supplies the document shell and security policy.
- Put all CSS in `