Composing HTML

Q: What is a Claude Code skill and how does the Composing HTML skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Composing HTML is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Content · Sub-category: content-misc · Last updated: 2026-06-13

type:review

Composes single-file HTML artifacts (PR review writeups, status reports, incident postmortems, slide decks, design systems, prototypes, flowcharts, module maps, feature explainers, kanban boards, prompt tuners) from a small JSON spec instead of hand-written HTML/CSS/JS. Use when the user asks to "compare options side-by-side", requests an HTML version of a report or review or deck, asks for a flowchart, status update, postmortem, design system reference, interactive prototype, custom editor — or explicitly says "HTML artifact", "single HTML file", "self-contained HTML". Skip for ad-hoc HTML snippets (forms, emails, embedded widgets) where there's no template fit.

From the source SKILL.md

Produce single-file HTML artifacts without hand-writing the page chrome. The composer supplies <!DOCTYPE>, <head>, inlined CSS, base.js, design tokens, masthead, and colophon. You supply a title and the body content.

What this skill does

Composing HTML is a community-contributed Claude Code skill in the content-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/composing-html/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user asks to "compare options side-by-side", requests an HTML version of a report or review or deck, asks for a flowchart, status update, postmortem, design system reference, interactive prototype, custom editor — or explicitly says "HTML artifact", "single HTML file", "self-contained HTML". Skip for ad-hoc HTML snippets (forms, emails, embedded widgets) where there's no template fit.

Who uses this skill

The Composing HTML Claude Code skill is built for content creators, marketers, copywriters, SEO professionals, and editorial teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 117,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/composing-html
curl -L https://claudskills.com/skills/composing-html/SKILL.md \
  -o ~/.claude/skills/composing-html/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/composing-html/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/composing-html/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\composing-html\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Composing HTML Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/composing-html/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Composing HTML skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Composing HTML skill?

Use Composing HTML when your Claude Code task falls under the Content category — specifically in the content misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Composing HTML" or describe the task and let Claude pick). Browse related skills at /category/content/.

What is a Claude Code skill and how does the Composing HTML skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Composing HTML is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Content category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/oaustegard/claude-skills/blob/HEAD/composing-html/SKILL.md
License: MIT
Author: oaustegard
Website: https://austegard.com/ai-tools/claude-skill-releases.html

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

oaustegard. (2026). Composing HTML [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/composing-html/

BibTeX

@misc{composing-html-2026,
  author    = {oaustegard},
  title     = {Composing HTML [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/composing-html/}
}

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Badge

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