Let me show you something cool. This two-minute video was built by Claude Code from a single prompt.
Okay — one prompt and about thirty follow-ups. And then twenty more after Claude Code fumbled a git command and wiped out half of my video-editing material (don't ask). But it's still pretty cool, because I didn't do a single thing by hand. No image editor, no video timeline, no audio software, no clicking around in a tool. It was just a conversation between me and Claude. And all the tools it used along the way — for generating the images, synthesizing the voice, editing the video, the glue code that ties it together — Claude built for itself.
This is not the greatest video in the world, but I think it does its job — explaining the rules of my side project — quite well. The two of us made it: me and Simona, my heavily customized Claude Code setup. I made the directorial calls — those highly detailed images don't work, try a chalkboard instead — and she did everything else.
"Everything else" is a kit of skills — small, self-contained tools Simona reaches for the way you'd reach for an app:
Image generation — OpenAI's gpt-image-2 and Google's Nano Banana 2 (gemini-3.1-flash-image), for every still in the video.
