

Video 1 of 1Lone robot plays hopscotch beside painted human shadows
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What Chalk Shadow Short does, which agents run it, the keys it needs, and how to install it.
Chalk Shadow Short is an agent skill by Potto for making Visual System videos. Create 20–110-second low-poly 3D narrative shorts featuring a palm-sized cleaning or messenger robot, a chalk ground game and painted human shadows that wake under warm light…
Chalk Shadow Short is a premium skill. It comes with any paid Potto plan (Lite, Pro or Max), or you can buy it once for $5 and keep it.
The Chalk Shadow Short skill is written in English. It makes on-screen text in any language you give it.
Chalk Shadow Short builds on Remotion. Install Bun, Python 3, and FFmpeg before you run it.
Chalk Shadow Short produces MP4.
Chalk Shadow Short runs in Claude Code and Codex, or in any other agent that reads SKILL.md.
No. Chalk Shadow Short works without any extra API key.
Copy the install prompt for Chalk Shadow Short from this page and paste it into your agent, or download its ZIP.
Chalk Shadow Short was used to make 1 video in the Potto gallery, such as Lone robot plays hopscotch beside painted human shadows.
Potto has Chalk Shadow Short v1.0.0, updated Oct 21, 2026. Copy the install prompt again to get the latest version.