Zeno Rocha

What Zeno Rocha said

1. Latent Space · Nov 10, 2026

   Designing for Agents — Zeno Rocha, Resend

   8 moments · 33 min

   5:08
   1. 7:01

      Email delivery depends on pacing and reputation ProPro pick

      “So the whole way of thinking about email marketing and, and email in general is you, you need to do exactly what an abuser wouldn't do.”

   2. 38:02

      An MCP should cover the whole product

      “I want my product to be formless. Whatever they wanna do with the product, it should be possible.”

   3. 58:26

      Markdown pages can correct AI pricing answers

      “I pushed that, and then I asked again like a few days later, and then it got the numbers right.”

   4. 32:23

      SES's low price can hide the surrounding infrastructure cost

      “the hidden cost if you're going with SES is that, okay, you might be paying only 5K, for example, but now you need SNS for the events.”

   5. 13:24

      Shared tracking domains expose senders to a neighbor's abuse

      “you have a noisy neighbor problem too, where if one of the customers using that click tracking is an abuser and sends a bunch of phishing, that domain might get listed on a blacklist”

   6. 17:19

      Support replies became documentation before they reached customers

      “you can only respond to a ticket with a link. So you cannot just give the answer right away.”

   7. 19:55

      Domain Connect turns DNS setup into an OAuth-style flow

      “Like no one really maintains the protocol and things like that, but it's beautiful, like having a protocol that you can just do an OAuth for domains”

   8. 23:51

      React Email gave Resend a path from templates to sending

      “if people are, like, building the, like, the email template using React, like, now they'll need a platform to send it.”