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generative-ui

Skill1 starsChanged 6 days agoMITView on GitHub

How to render rich interactive HTML widgets inline in the chat or as standalone artifacts. Use this skill when you want to show the user diagrams, data visualizations, interactive controls, educational walkthroughs, or any rich visual content beyond plain text and markdown.

4 other projects use a version of this.

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  • Other versions4 projects use a version of this.

    Word for word · 0

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    Edited · 0

    None found.

    Wrote their own version · 4

    1. BuilderIO/agent-native★ 7.6ksame name
    2. IngAs8/ClaudeSkill★ 0same name
    3. lsongdev/skills★ 0same name
    4. Sapiens-ostracism678/finance-skills★ 0same name

    How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.

  • In this repository5 other files it gives its agents.

The file

We split this skill into the rules it gives an agent

2 rules. 0 are common, 0 are distinctive, and 2 are very specific to this project.

  • 0

    Common

    Most of the 4 edited versions we read keep these.

  • 0

    Distinctive

    This author's own choices. Worth a look.

  • 2

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Create the HTML Artifact: Use write_file to save a self-contained .html file (using Tailwind CSS and inline JavaScript) to the artifact …

    line 12
  2. Very specific:

    Never size an inline widget with h-screen, min-h-screen, 100vh, or height: 100% on a top-level container.

    line 66

“Common” is measured: kept by at least 6 in 10 of the 4 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Generative UI

You can render custom, rich, interactive user interfaces (inline widgets or larger artifacts) directly in the chat or in the side pane. This is a great way to communicate complex information to the user, generate rich visualizations, and even create small interactive experiences for the user.

Workflow

  1. Create the HTML Artifact: Use write_file to save a self-contained .html file (using Tailwind CSS and inline JavaScript) to the artifact directory. Set UserFacing: true in ArtifactMetadata.

  2. Embed Inline (optional): Include the iframe embed in your chat response when this html artifact should be rendered inline in the conversation:

    <iframe src="file:///<artifact_path>/widget.html" class="w-full border-none rounded-xl" style="height: 480px;"></iframe>

Constraints & Theming

  • Styling & Tailwind CSS: Style your artifacts cleanly using Tailwind CSS. Include the following script tag in your <head> to enable Tailwind:

    <script src="https://cdn.tailwindcss.com"></script>
  • Use Provided Theme Variables: The host environment injects semantic design-system tokens, so widgets automatically match the host theme and custom colors:
    • Surfaces: --background, --card, --sidebar
    • Borders: --border
    • Text: --foreground, --muted-foreground, --placeholder
    • Accents: --primary, --primary-foreground, --accent
    • Typography is applied automatically — avoid sub-12px micro-text (text-[10px], text-[11px], or CSS font-size below 12px; keep text-xs / 12px as minimum floor).

  • HTML Boilerplate Template: Recommended base template:

    <!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <script src="https://cdn.tailwindcss.com"></script>
  <style>
    :root {
      --background: #121316;
      --card: #1c1d22;
      --border: #2e3038;
      --foreground: #f1f2f6;
      --muted-foreground: #9ca3af;
      --accent: #8b5cf6;
    }
  </style>
</head>
<body class="bg-transparent text-[var(--foreground)] antialiased p-5">
  <div class="bg-[var(--card)] text-[var(--foreground)] border border-[var(--border)] rounded-xl p-5 shadow-sm">
    <h2 class="text-[var(--foreground)] font-semibold text-lg">Title</h2>
    <p class="text-[var(--muted-foreground)] text-sm mb-4">Description of the component</p>
    <!-- Interactive content and controls go here -->
  </div>
</body>
</html>

Sizing Inline Embeds

  • Inline embeds look best within a 450px–500px height budget.
  • Never size an inline widget with h-screen, min-h-screen, 100vh, or height: 100% on a top-level container. Use padding for breathing room instead.

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