sandbox-gif

name	sandbox-gif
description	Encode an animated GIF from RGBA frames inside a Code node or CodeAct action, with gifenc running in the guest

GIF encoding in the sandbox

Specifier: @nodetool-ai/sandbox-gif. One module, gifenc. Import it at the top of the body.

Frames to a GIF

import { GIFEncoder, quantize, applyPalette } from "@nodetool-ai/sandbox-gif";

const gif = GIFEncoder();
for (const frame of inputs.frames) {
  const palette = quantize(frame.rgba, 256);
  const index = applyPalette(frame.rgba, palette);
  gif.writeFrame(index, inputs.width, inputs.height, {
    palette,
    delay: frame.delay ?? 100
  });
}
gif.finish();
return { bytes: gif.bytes() };

Each frame.rgba is a Uint8Array of length width * height * 4. delay is milliseconds.

Gotchas

• You supply RGBA. Decode a still with image.bytes / canvas, then pack frames yourself.
• gif.bytes() is a Uint8Array. Write it with workspace.writeBytes.