Cosine
Day 0 after signup
Welcome to Cosine
Let's get you started!
Why it works
- A founder’s brief introduction makes the welcome feel like a personal note rather than a generic automated message.
- Explain the product’s point of view before asking the reader to get started, so the call to action has useful context.
- Keep the email focused on one primary action while making it easy to ask for help by replying.
How it is built
- Welcome greeting
- Founder introduction
- Product positioning
- Getting started CTA
Email copy
Hello, Welcome to Cosine. I'm Yang, one of the founders here at Cosine. We built Cosine for engineers who want an agent that fits their workflow, not one that replaces it. It runs in your stack, respects your review process, and shows its work at every step. Hit reply if you get stuck or want to talk shop or jump right into Cosine. Get Started -- Yang Li, Co-founder 81 Rivington street, London, EC2A 3AY, United Kingdom If you'd rather not receive this kind of email, you can Unsubscribe.