Is my YouTube Short breaking out? The day-2 check before you make a part two (free Claude Code skill + sheet formula)

One of my YouTube Shorts hit 1,063 views about ten hours after it went up. My usual Short gets around 318, so that's about 3.35 times my median, and the tool I track my views with told me to make a part two.

I waited a day and a half first. In that time it got 38 more views: 1,063 to 1,101. So I didn't make the part two.

This guide is the check I use now before I make a follow-up to any Short. You read your views on day one and day two, do one bit of maths, and get one of three answers: spin a follow-up, keep watching, or let it go. There's a free Claude Code skill at the bottom that does it for you, and a spreadsheet formula if you'd rather not use Claude at all.

What you'll have when you're done

• A way to tell a real breakout from a Short that just got its first test batch
• One number to read on day two: how much the Short grew in the last 24 hours
• Your own breakout line, set from your own channel, not mine
• A free Claude Code skill and a one-line spreadsheet formula that give you the verdict

Before you start

• A YouTube channel with at least 20 or so Shorts, so you can see where yours usually stop.
• YouTube Studio open on your phone or laptop. You only need the view count on each Short.
• About 15 minutes to set it up, then about a minute per Short.

Step 1: See where your Shorts stop

Before you can spot a breakout, you need to know what normal looks like on your channel. Mine wasn't a smooth spread. Since 3 September 2026, 13 of my 47 Shorts stopped somewhere between 1,000 and 1,300 views (I left out one outlier at 111k). Only one went past 1,300. It reached 1,533, and YouTube later revised that down to 1,348 (more on that in Step 3).

So when one of my Shorts reaches about 1,000, that's not special. Lots of them get there and stop.

Open YouTube Studio, go to Content, then Shorts, and write down the total views of your last 20 to 40 Shorts that are at least a week old. Look for the number they bunch up at.

My last 47 Shorts (since 3 Sep 2026, one 111k outlier left out)
stopped at 1,000 - 1,300   13 Shorts
went past 1,300             1 Short  (1,533, later revised to 1,348)
the rest                    under 1,000
my median                   about 318 views

Step 2: Read the first thousand as a tryout

Here's how I read that bunch, and it's my reading, not something YouTube has told me. I think the first thousand or so views is YouTube trying the Short on a small group of people. If that group watches and keeps going, it gets shown to more. If not, it stops right there.

So a Short at the top of that bunch hasn't broken out yet. It's had its tryout. That's why "3 times my median" fooled me: my median is about 318, so anything that gets the tryout looks like a hit on day one.

The day-two numbers back this up on my channel. Of my 9 Shorts from one week in October, 6 stopped between 1,004 and 1,392 views after 7 to 11 days, and on every one of them, day two brought in only 1 to 17 percent of what day one did.

Step 3: Read your views twice

Read the Short's view count twice: once about a day after it went up, and once about a day after that. Write both numbers down with the time you read them.

Read it twice for a second reason too. One of my Shorts showed 1,533 views and a week later the same count read 1,348. YouTube revised the count down by about 12 percent. So I never call a breakout on one reading. I want two readings at least 12 hours apart that both pass.

Short: this-isnt-me
read 1   0.4 days after posting    1,063 views
read 2   1.85 days after posting   1,101 views
growth   +38 views in 1.45 days

Step 4: Run the check

The check is one rule, and I'd call it a hypothesis, because it's built from my own channel. A Short is breaking out if either of these is true:

1. It grew 25 percent or more in the last 24 hours, after its first day.
2. It's past your breakout line, at least 1.4 days after posting.

My breakout line is 1,600 views, because that's clearly above where my Shorts bunch up (1,000 to 1,300). Set yours the same way: a bit above the top of your own bunch from Step 1.

Then the verdict:

SPIN A FOLLOW-UP   it passes on two readings 12+ hours apart,
                   and it's doing at least normal on Instagram or TikTok
                   if you post it there too
KEEP WATCHING      it passes on one reading only, or it passes on YouTube
                   but sits under your normal on the other platforms.
                   Read it again in 12 to 24 hours
LET IT GO          under 25% growth in the last 24 hours, and under your line.
                   Skip the part two

Here's my Short through the check. It went from 1,063 to 1,101, which is about 3.6 percent growth over a day and a half, or about 2.5 percent per 24 hours. That's well under 25 percent, and 1,101 is under my 1,600 line. On Instagram it was at 0.88 times my normal and on TikTok 0.97 times. So the answer was let it go, and I did.

Step 5: Let Claude do the maths (free skill)

If you use Claude Code, this skill does Steps 3 and 4 for you. Copy the text below into a file called SKILL.md inside a folder called breakout-check, then put that folder in your Claude skills folder:

• Mac: ~/.claude/skills/breakout-check/SKILL.md
• Windows: C:\Users\YOUR-NAME\.claude\skills\breakout-check\SKILL.md

---
name: breakout-check
description: Decide if a YouTube Short is breaking out from two view readings. Use when someone gives day-1 and day-2 views for a Short and asks if they should make a follow-up or part two.
---

# Breakout check

Ask for anything missing, then decide.

Inputs
- read 1: views, and days since posting
- read 2: views, and days since posting (at least 12 hours after read 1)
- breakout line: the view count a bit above where this channel's Shorts usually stop
  (default 1,600 if the person doesn't know theirs, and say that it's a default)
- optional: how the same video is doing on Instagram or TikTok vs its normal (e.g. 0.9x)

Maths
- hours = (read 2 days - read 1 days) x 24
- growth per 24h = ((read 2 - read 1) / read 1) x (24 / hours) x 100
- passes = (growth per 24h >= 25 and read 1 is at least 1 day after posting)
           OR (read 2 >= breakout line and read 2 is at least 1.4 days after posting)

Verdict
- SPIN A FOLLOW-UP: passes on both readings or on two readings 12+ hours apart,
  and the other platforms are at 1x or better (or the person only posts on YouTube)
- KEEP WATCHING: passes on one reading only, or the other platforms are under 1x.
  Say when to read it again (12 to 24 hours)
- LET IT GO: doesn't pass. Say "skip the part two"

Reply in plain words: the verdict on the first line, then the growth per 24 hours,
then one sentence on why. Say it's a rule of thumb from one creator's channel,
not something YouTube publishes. Never promise a Short will or won't grow.

Start a new Claude Code session so it picks up the skill, then type your numbers in plain words, for example:

/breakout-check read 1 was 1,063 views at 0.4 days, read 2 was 1,101 at 1.85 days. Instagram is at 0.88x, TikTok 0.97x.

It should come back with LET IT GO and about 2.5 percent growth per 24 hours.

Step 6: Or use one spreadsheet formula

No Claude needed. In Google Sheets or Excel, put read 1 views in A2, read 1 days in B2, read 2 views in C2, read 2 days in D2 and your breakout line in E2. Paste this into F2:

=IF(OR(AND(B2>=1,(C2-A2)/A2/(D2-B2)>=0.25),AND(D2>=1.4,C2>=E2)),"PASSES: read again in 12h to confirm","LET IT GO: skip the part two")

It only checks one pair of readings, so when it says PASSES, take one more reading 12 hours later before you spin a follow-up.

The honest part about this check

It's built from one channel, mine, so treat it as a starting point. Apart from that one outlier, no Short of mine has crossed 1,600 since early September, so the breakout half of the rule hasn't had a real Short to prove it on yet. The let-it-go half is the part I trust, because I've watched it happen over and over.

The tryout also isn't a fixed size. In late October my first batch shrank: by my 30 October read, 6 Shorts in a row hadn't got past 790 views. So check where your Shorts stop every few weeks, and move your line if the bunch moves.

What I'd do differently

Wait for day two before making a part two. A strong day one usually means the tryout went fine, not that the Short took off.

Use your own channel's numbers. "Three times my median" says more about your median than about the Short.

Read twice before you believe a number. A count can go down after YouTube cleans it up.

Let it go when it's flat. A follow-up to a Short that stopped is just another Short that stops.