Packaging Check

Does your package make one promise?

Your title sells it, your thumbnail shows it, your first line pays it off. Packaging Check reads all three together and shows where the promise breaks.

Real output · example package · captured Sep 25, 2026
Overall 62, 2 mismatches, medium payoff risk on the example Shorts package.See the full example report

Your package

Paste what you plan to publish. All three are read as one.

0/140

Roughly the first 60 characters show before the title gets cut off.

Thumbnail

Drop your thumbnail here

or click to choose. JPG, PNG or WebP, up to 10 MB.

Resized in your browser before anything is sent.

0/500

The opening sentence or two, as you'll say it.

Title and thumbnail in the feed

What the viewer sees before the first line. Free, stays on your device.

Add a thumbnail image to preview it with your title.

How it works

Three steps, one read before you publish.

  1. 1

    Paste the package

    The title you plan to publish, the thumbnail (image or just its words) and the first line you will say on camera.

  2. 2

    Read as one

    An AI editor reads the three together, names the promise a viewer will expect and checks each pair of parts against it.

  3. 3

    Fix and rewrite

    You get one issue and one fix per part, the mismatches between them, and a rewritten package that keeps your topic and claims.

What you get

Every field in a Packaging Check report.

See them filled in on a real report
The promise
One sentence: what a viewer expects after seeing the title and thumbnail.
Overall and consistency
Two 0-100 scores for the package as a whole and for how well the parts agree.
Payoff risk
Low, medium or high: does the first line deliver what the click was for.
Per-part read
Title, thumbnail and first line each scored, with one issue and one concrete fix.
Mismatches
Every pair that pulls in a different direction, named in one sentence.
Rewritten package
A new title, thumbnail text and first line, each copyable.
Evidence videos
Real videos on the topic with their views measured against their own channel.
Next steps
Links into Thumbnail Studio and the Hook Analyzer with the new idea filled in.

Method and data

What is AI judgement, and what is measured.

AI judgement

An editor's opinion with a reason attached. Useful as a second opinion, not a prediction of views or CTR.

  • The promise, every score, the payoff risk, issues, fixes and mismatches.
  • The rewrite. It is told to keep your topic and never add numbers or results you did not state.
  • The search phrase used to find evidence videos.

Measured or computed

Numbers that come from data or arithmetic, not from the model's opinion.

  • Evidence badges: views ÷ the median views of that channel's recent uploads, from the YouTube Data API at the time of the check.
  • Channels with a median under 1,000 views get no badge, because the multiple would be noise.
  • Credits: 5 per check, 10 with an image, charged only when the check comes back.

Privacy. Thumbnail images are resized in your browser before they are sent and are not stored. The title, first line and result are saved to your private workspace. Nothing is published or shared. Privacy policy · How scores work

FAQ

Packaging Check questions

What does Packaging Check score?

It returns the promise a viewer will expect, an overall score, a consistency score and a payoff risk (low, medium or high). The title, thumbnail and first line each get a score with one issue and one fix, every mismatch between two parts is named, and you get a rewritten package plus what already works.

Do I need to upload the thumbnail image?

No. You can type the words on the thumbnail and the check judges it from its text for 5 credits. With the image attached the AI reads the picture itself, which costs 10 credits.

Does a high score mean more views?

No. The scores are an AI editor's second opinion on whether the three parts make one clear promise. They are not a prediction of views or click-through rate. Check real performance in YouTube Studio once the video is live.

Where do the example videos in the report come from?

The report searches YouTube for the topic through the YouTube Data API and lists real videos. The badge on each is measured: its views divided by the median views of that channel's recent uploads. Channels too small for a stable median get no badge.

Is my thumbnail stored?

The image is resized in your browser, sent once for the read and not stored. The text of the check (title, first line and the result) is saved to your private workspace so you can find it again.