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?

João saw an opportunity to automate a MOGRT-based editing process the team had created. The manual version had existed for two years, so he knew exactly what he was trying to automate.

"It wasn't so much a frustration, but an opportunity that came to my mind with all that the team was sharing internally. I figured I'd give it a go and see if it was possible to create a tool that could 'transform' our manual process into a more automated one. I had all the information on my side and had been working on it for a couple of years, so it felt like if anyone was going to try and make this work, I was the right person to give it a shot."

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 session in Claude Code look like?

The first hurdle to be cleared was finding out whether Code could even touch Premiere at all, since everything that followed would depend on the answer.

"First thing I tried was really just exploring if there could be a script that could communicate with Premiere and make edits directly in the software. Since this whole process is based on Mogrts, that would be critical. If there was not a way to make that happen, I'd probably shift my approach to something else.

"The first explorations worked almost at first try, and at that time I was even only working in Claude Chat, downloading the files and then running on my machine. The shift to Claude Code was inevitable, and that's when I started to focus on what's needed for a product like this to work not only on my computer but across other machines, to make this a collaborative tool."

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 it "in the open" change the outcome?

João kept the team up-to-date along the way. He posted a new Loom every week for a month, from the first rough script to a working tool deployed live. His peers' reactions fed back into what he built.

"I was excited with the progress I was able to achieve as time went by. I started to understand that there was something there that could be interesting not only for the client and process where we already had this going, but also as a discipline. As I was building, I was also talking with teammates whose feedback definitely made me add and/or change some of the features and flows of the tool."

We're making these in a fraction of the time and cost, and they still look and feel bespoke, right down to the brand guidelines.

Where did Claude Code struggle?

The features came together quickly. What took the most time was the tool's own interface, the animations and interactions of the product itself, as opposed to the videos it produces. For a Motion Director, that surface had to feel right and meet his standards before he could ask anyone else to work in it.

"One of the things I noticed that was the hardest part to manage was animations and interactions, which for me are critical, and took a lot more time than I expected to get right."

A motion designer converted a manual process into a tool that 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, which freed him to spend more of his time on the story and flow of the videos themselves. While the final touches and verdict remain with the expert, the tool got him to that finish line faster.

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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