alsk1992/cloddsbot/sandbox

Claude Code and agent skill by alsk1992/cloddsbot

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Visual HTML canvas sandbox for agent-driven UI and live previews

Install

npx vskill@latest install alsk1992/cloddsbot/sandbox

SKILL.md

Sandbox - Visual Canvas

Push HTML content to a live-updating canvas server for visual previews, dashboards, and agent-driven UI.

Commands

/sandbox start        - Start the canvas server (returns URL)
/sandbox push <html>  - Push HTML content to the canvas
/sandbox reset        - Reset canvas to blank state
/sandbox screenshot   - Take a screenshot of the current canvas
/sandbox status       - Show canvas server status and settings

Environment Variables

VariableDescription
CANVAS_ALLOW_JS_EVALEnable JavaScript evaluation in canvas (default: false)
ALLOW_UNSAFE_SANDBOXEnable unsafe sandbox mode (default: false)

Examples

/sandbox start
/sandbox push <h1>Hello World</h1><p>Live preview</p>
/sandbox screenshot
/sandbox status
/sandbox reset

How It Works

  1. /sandbox start launches a local HTTP server that serves the canvas page
  2. /sandbox push <html> sends HTML to the canvas, rendered in real time
  3. /sandbox screenshot captures the current canvas state as an image
  4. /sandbox reset clears all HTML, CSS, and JS from the canvas
  5. /sandbox status shows whether the server is running, the URL, and content sizes

Security

  • Security scanPassed, 96 of 100Pattern checks on the skill's files.
  • Model reviewPassed

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Quality evaluation

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Source

Popularity

Repository stars
2,913
Repository forks
357
Repository npm downloads, 7 days
85
7-day trend score
52

Stars and forks are for the whole GitHub repository, not this skill alone. Downloads are for the repository's npm package. Refreshed 24 Mar 2026, 7 months ago.

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