“Cold email doesn’t work”. 0 replies to your email campaign.
You rewrite the subject line three times. You make it shorter, then longer.
You run it through Claude to sound less salesy. But nothing really moves.
So now you’re working out whether to kill the campaign or just pay someone to run it for you.
Reply rate is one of 3 numbers to track. But it’s also the one that lies the most.
📐 What YYY is, in 30 seconds
There are 3 questions every single prospect asks themselves, answered in order, in one email:
Why ME? A dated event at their company, and the problem it creates. This is called relevance.
Why YOU? How you solve it. This is called credibility.
Why ACT? One thing they’d want even if they never buy from you. This is called a compelling offer.
That’s it. I wrote the full breakdown here:
The Claude skill in this article runs that framework against real prospects.
📊 The stat that explains it all
LeadHaste’s 2026 outbound benchmarks pull data from 20+ primary sources: Instantly, Gong, Cognism, RAIN Group, Expandi.
One line in there matters more than all the others: Only 5% of cold email senders personalise every email.
Which is strange, because the same report shows what personalisation does:
Highly personalised campaigns get 142% higher reply rates than generic
Prospect-specific openers and company research hit 18% reply rate, against 9% for generic templates
Top reps get 4.2x more replies than the average rep
So the biggest lever sits untouched by 95% of people sending cold email.
Not so much because it doesn’t work. The problem is time: it takes 10 minutes a prospect, and 300 prospects is 50 hours.
But reply rate isn’t what pays. Here’s the full funnel:
500 targeted emails → ~17 replies → ~4 meetings booked → ~3 held → under 1 closed deal.
Email-to-meeting sits at 0.5% to 2% for typical teams. Top performers manage 2% to 2.34%.
At average rates, that’s 117 emails per booked meeting.
🔱 3 ways to send, and what each costs you
1. The SDR way
A sales rep pulls a list, writes a few templates, and sends. Research happens by hand, if at all.
When they do find a signal, they found it from vendors like LinkedIn or Zoominfo, from a one search or one company at a time.
AI shows up at the end, drafting the emails.
While that same AI could be reading 100 companies and working out which have a problem right now.
10 minutes per prospect, done properly.
300 prospects is 50 hours. Nobody has 50 hours, so the real research stops happening.
That’s the 95%. Most sales teams still operate the SDR way.
2. The AI SDR way
Fully automated.
Sold as replacing your entire SDR team. We now know that promise didn’t hold.
What works is a leaner team with one GTM engineer/operator using AI well, and that’s where the market has landed.
An AI SDR fires at volume.
It knows a form you filled in and a firmographic filter. But it has never seen your closed deals.
0 minutes per prospect, and AI-personalisation sit at 9% reply against 18% for researched ones.
Vendors often hide the price, which tells you something.
11x’s own page says Alice starts at $36,000 a year, and third parties put year one closer to $50,000 once implementation lands.
Call it $20,000 to $60,000 a year, on an annual contract, in a category with 50 to 70% churn.
For the half of the reply rate you’re leaving behind.
3. The YYY way
Semi-automated.
The YYY Claude skill interviews you once, 2 minutes.
Then it saves your offer, your buyer, your proof points and your disqualifiers.
Then it researches every single prospect personally. Profile per profile or an entire list if you like.
Not a personalised first line bolted onto a template, but a fresh dated trigger for each one, and 3 complete emails written around it.
4 to 6 searches, 3 emails drafted, 1 honest confidence grade.
Roughly 2 minutes per prospect instead of 10.
300 prospects goes from 50 hours to 10. And you read every one before it sends.
It’s not from another vendor’s template or an article about cold email.
The framework behind it comes from a decade of outbound work and reviewing thousands of campaigns.
📦 What you get today
The full YYY email writer skill, ready to plug into Claude and launch in Claude for Chrome.
Type one line and it runs everything: it interviews you, researches the prospect, does the writing, + an honest verdict on whether the prospect is really worth emailing.
⚙️ Installing the skill
Download the file below and add it to your Claude account like any other Skill.