Thumbnail Generator

Scroll-stopping thumbnails on command — one focal face, a curiosity gap, and text that survives the blur test.

Thumbnail Generator is a private Claude Code skill that turns a video into a thumbnail engineered to win the half-second glance. It builds the art direction first, locks in ≤3–4 words that don’t repeat your title, routes to the best image model, and hands you 3 A/B variants that each change one variable — so you learn what actually moves watch-time, not just clicks.

Who it's for: YouTubers and short-form creators fighting for the click — who want thumbnails engineered for CTR, not just decorated.

What's inside

Two-message "Thumbnail Laws" method — art direction first, ≤3–4 words second

Wins the pre-attentive glance: one focal face, max contrast, a curiosity gap

Built-in blur/peanut test — reads at 120–160px or it ships nothing

Hybrid workflow — AI background + your real face (2025–26 authenticity)

YouTube 16:9 + Shorts/Reels/TikTok 9:16 covers, best-model routing

3 A/B variants, one variable at a time — judged on watch-time, not raw CTR

How it works

Brief

A short interview: the video, its ONE emotion, the destination (16:9 or 9:16), an optional face/reference, and the ≤3–4 words.

Art direction

It builds the Thumbnail Laws art direction first — one focal face, maximum contrast, a curiosity gap — before a single word of text.

Generate

Locks your exact words, routes to the right model (GPT Image 2, Nano Banana Pro, Krea, Ideogram), and renders at the correct ratio.

Test

3 A/B variants that each change one variable, plus the blur test and honesty check — ready for YouTube Test & Compare.

See the difference

A real idea, run through Thumbnail Generator — plain Claude versus the skill.

"Make a thumbnail for my video ‘How Price Action Actually Works’."

Without Thumbnail Generator

Generic AI: crams the whole title across the image over a busy stock chart, tiny face, low contrast — a cluttered thumbnail that melts into the feed and repeats the title it sits next to.

With Thumbnail Generator

Thumbnail Generator: one shocked face + one chart, ≤3 words that DON’T repeat the title ("I WAS WRONG"), maximum contrast, passes the blur test at 120px — and returns 3 A/B variants.

"My CTR is stuck at 2%. Fix my thumbnail."

Without Thumbnail Generator

Generic AI: "Add brighter colours and bigger text!" — surface tips with no diagnosis of why it isn’t being clicked.

With Thumbnail Generator

Thumbnail Generator: diagnoses against the laws — too many elements, title duplicated, fails the blur test — then rebuilds around one focal face and a curiosity gap, judged on watch-time, not raw CTR.

"Give me 3 versions to A/B test."

Without Thumbnail Generator

Generic AI: three unrelated designs — different everything, so whichever wins teaches you nothing you can repeat.

With Thumbnail Generator

Thumbnail Generator: 3 variants that change ONE axis each (emotion, colour, or text) so YouTube Test & Compare tells you exactly what moved watch-time.

See the difference

Same brief — a generic AI image versus Thumbnail Generator.

With the skill — With Thumbnail Generator

Made with Thumbnail Generator

One skill, any industry — a few examples.

$29lifetime access

One-time payment · instant access · secure via Razorpay