Visual HTML canvas sandbox for agent-driven UI and live previews
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tessl review fix ./src/skills/bundled/sandbox/SKILL.mdPush HTML content to a live-updating canvas server for visual previews, dashboards, and agent-driven UI.
/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| Variable | Description |
|---|---|
CANVAS_ALLOW_JS_EVAL | Enable JavaScript evaluation in canvas (default: false) |
ALLOW_UNSAFE_SANDBOX | Enable unsafe sandbox mode (default: false) |
/sandbox start
/sandbox push <h1>Hello World</h1><p>Live preview</p>
/sandbox screenshot
/sandbox status
/sandbox reset/sandbox start launches a local HTTP server that serves the canvas page/sandbox push <html> sends HTML to the canvas, rendered in real time/sandbox screenshot captures the current canvas state as an image/sandbox reset clears all HTML, CSS, and JS from the canvas/sandbox status shows whether the server is running, the URL, and content sizese71a5f6
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