A Claude agent finds leads and writes cold emails that book 4-5 calls a week
In plain words
A Claude agent scans for businesses showing signs they need help, saves them to a sheet, reads their websites and writes personal emails.
What happened: About 400 emails a day; 23 booked sales calls in a month (their own figures)
These numbers come from the builder and haven't been checked independently.
Source: reddit.com ↗
How to do it yourself
Our suggested steps. The company didn't publish theirs.
- 1
Define your ideal customer and 2-3 buying signals.
- 2
Have the agent collect matching businesses into a sheet.
- 3
Write emails with the prompt below from each website.
- 4
Warm up inboxes and start with 50 a day.
- 5
Read replies daily and tighten targeting.
The instructions to give the AI
Paste this into Claude (the free plan is fine), swap the [brackets] for your details, and test it on a few real examples.
This is one part of the setup. It won't connect to your phone, inbox or other apps on its own; the steps above cover that.
Agent instructions (prompt)
Here is [company]'s website text: [paste]. Write a cold email under 90 words: one specific observation about their business, the problem it likely causes, how we fix it in one line, and a soft question. No flattery, no links.
[Highlighted] = replace with your own details before you run it.
What you should get back: "Hi Tom — your booking page only works on desktop, so mobile visitors probably bounce. We fix that in a week. Worth a quick chat?"
Written by Quickly and Good, inspired by this case.
More detail: tools, prices and what you'll need
The company used: Claude agent + Google Sheets + email sender
You could use: Claude + Google Sheets + a cold email tool (e.g. Instantly)
- Claude
AI assistant for writing, analysis and long documents; can connect to your tools.
Free plan; Pro $20/mo (monthly) · Official site ↗
Prices from each tool's own pricing page, checked Oct 2026.
What you'll need
- ☐An automation tool (n8n, Make or Zapier)
- ☐Connections to each app involved (email, CRM, sheets, calendar)
- ☐An AI model account/API key
- ☐The agent instructions (prompt)
- ☐Error handling: what happens when a step fails
- ☐Testing with real data for a week
- ☐A human review step before anything goes out to customers
Can I do this myself?
Yes if you have built a Zapier/Make/n8n workflow before. If those words are new, hire a builder.
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