2026.11.12Thursday·AI beyond the horizon·himiao.ai
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Talks & Podcasts·YouTube·2026-11-10

Designing for Agents — Zeno Rocha, Resend (1:25:52)

Latent Space interviews Resend co-founder and CEO Zeno Rocha for 1:25:52, on how agents pick an email API, MCP server design, and writing for machines.

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Key points Tap a time to jump

  1. Cold open: a coding agent opens a pull request and picks an email provider

  2. From the Dracula editor theme, launched in 2013, to building an email service

  3. How agents pick an API: Claude Code picked Resend first in 64 of 102 extractable email recommendations

  4. What tracking measures: the limits of click tracking and open rates

  5. Paying for trust: custom tracking domains, the free tier, and anti-abuse

  6. React Email's wedge: email templates first, then the sending API

  7. Designing the MCP: the server grew from around 20 tools to more than 80

  8. Mail for agents: reading pricing in Markdown and registering for a service on its own

  9. Writing for machines: adding .md to the pricing page so an agent reads the table in one request

  10. Winning recommendations: how the recommendation study differs across models

SourcePublished by Latent Space on YouTube (original); all rights belong to the creator. We only embed the official player; key points by HIMIAO Horizon.

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