By Fantasy

The Timeline That Builds Itself

How We Build

João Verissimo is a Motion Director at Fantasy. Using Claude Code, he built a tool that turns a brief into a script, an AI voiceover, and a Premiere-ready timeline.

The AIA Timeline Builder interface: a brief step that generates a script with AI and a recording step that transcribes a take, layered over a Premiere-ready timeline.

What made him build it?

The build_timeline.jsx script Claude Code wrote to automate Premiere Pro, shown beside the AIA Timeline Builder web app it exports from.

What did the first hour in Claude Code look like?

When did it stop being a side project?

Creating a tool the team could use on projects was always the target. João kept his own doubts in front of him to push the work further, and within a month it went from a personal experiment to a tool running on a live client engagement.

“That was always the main goal. Of course initially I had doubts if it was possible to get there. I tend to be more skeptic in order to push my ideas and work as far as possible, to make it real and not just a vague idea of something that could work. But the more time I dedicated, the closer I got, and eventually it became a usable tool and a new way of working for the manual process we had defined a while back.”

The AIA Timeline Builder feature set built week by week: import and build, script and segments, AI voiceover, accessibility, and the assembled Premiere timeline.

Did building in the open change it?

Imagine being able to create hundreds of product walkthroughs and being able to easily update them as the product evolves, without having a large content production team.
Reaction to an early demo

Where did Claude Code struggle?

A motion designer took a process he had run by hand for two years and taught it to run itself. The tool writes the script, generates the voiceover, and assembles a Premiere-ready timeline, and it moved from his laptop to a live client engagement in about a month. Claude Code built every feature he asked for. What it could not do was decide when the motion felt "right"; that judgement remained with the expert.

How to build an AI-assisted video production tool with Claude Code

The AIA Timeline Builder timeline view on a tablet, showing a 1:30 edit built from six segments with MOGRT templates, voiceover, and music tracks laid out in Premiere order.

Frequently asked questions

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