CAL / Creative Automation Lab
Onboarding · Greenstone

Brief in.Ads out.

You drop a brief into Claude, ask for the ad in plain words, and get a script that builds it in After Effects. Every layer stays editable. Five short videos show you how, and the whole run takes about 30 minutes with your hands on the keyboard.

5 lessons · 2 min 45 s of video After Effects + Premiere No coding
Trailer frame: Off the timeline
0:58
Watch first

The trailer

Under a minute of what CAL does, set to the CAL rap, with a peek at every lesson. Turn the sound up.

Play the trailer →
Running order

Watch, then do

Before you start

What you need

ClaudeThe desktop app or claude.ai, signed in.
After EffectsOpen, with a new empty project.
Premiere ProFor Lesson 3 only.
Practice filesThe two brief screengrabs, linked below.
Copy and paste

The prompts

Lesson 1Drop in Brief Row 08 first
Here is a screengrab of my brief. Can you write me an After Effects JSX script that builds this ad?
Vertical 1080 x 1920, 30 fps, 11 seconds.
Light background, white chat bubbles that pop in one at a time with the price in green, then a green button for the last line.
Small legal text centred under the bubbles.
Keep every layer editable and give me the script as a .jsx file.
Lesson 2Same chat
Love it. Can you make two changes: pop the bubbles in a bit slower, and make the price bigger.
Same file name with v2 please.
Lesson 4Same chat, drop in Brief Row 19 first
Now do this one.
Lesson 4, thenSame chat
Give me the square version.
Keep these

Files