sketchling

About

I built sketchling this weekend to see if agents can draw something that looks natural and hand-drawn if given the right primitives. This was inspired by Manim after watching how powerful an agent-native way to produce animations can be. It is a small typescript library with shapes that take character parameters like weight, looseness, and energy. It renders through rough.js and GSAP through a headless chromium browser. It has tools like a built-in linter and is meant to be agent-native. As a test, I gave the library to Devin cold with minimal instructions and it came back with a 3 minute, 9 scene short film which I found cool! I also had 5 more agents each try a different style, pixel art, clean line, clay, 3D, even a jazz club scene with its own music, and they all came out looking different which was awesome to see. I have added procedural walk cycles, camera movement, particle movement, and a small sound library as well. It is very early and has Chromium and ffmpeg as dependencies, which is more setup than I would like. I'm also honestly not sure how far this goes past the kind of demos I've shown here. Would love any and all feedback!

Discovery history

1. Show HN

   Aug 11, 2026 · 1 observations