Complex day at Superhuman

Choose what to erase before drafting can safely resume

Published Nov 6, 2026

You’re the ai / ml engineer. Your team is in the room.

The setting

makes , an email app that works with Gmail and Outlook. It uses AI to draft replies in the user's voice and to sort incoming messages, for individual professionals and sales teams.

A wider purge protects account separation by permanently discarding more personalization history.

Rapid resumption preserves drafting continuity, while a defensible deletion boundary protects information that must remain separate.

Who you’d be doing this for

“A draft for one client mentioned the other client's salary range. I caught it before sending, and now I'm reading every line twice.”

Olympia Rossi · Independent recruiting consultant · a character in this brief

Uses separate connected accounts for two client engagements.

What is at stake

Personalized drafts exposed facts across accounts, leaving 8,000 accounts paused. You weigh irreversible deletion against evidence that is costly to verify.

Why it isn’t already fixed

Every obvious fix costs something else. That’s the part you’d have to decide.

  • account isolation vs retained personalization
  • verified evidence vs six-hour commitment
  • broad deletion vs rapid recovery
  • fluent output vs factual provenance

Why Superhuman

Personalization supplies facts to generated replies, so an account-association error reaches text intended for external recipients.

Written with these in mind

Production ML engineersRetrieval engineersReliability-minded AI builders

Not your kind of problem? 49 more at Superhuman, or browse every organization.

Where the organization context comes fromThe postings this brief was written from, and the reporting read before it.

The organization context comes from public information. The situation and characters are written for the brief.

Job postings it was written from

Public descriptions of the work at Superhuman. They are listed as sources, not as openings. The lines under a posting are its own words, where it meets this brief.

This is the setup. The work is inside.

Running it puts you in the room: the full situation and its constraints, stakeholders who push back in their own words, and the decisions that are yours to make. What you produce becomes a Day One Plan — work you can show someone instead of describing.

Other live briefs connected to this one, and what connects them.

Similar problems at other organizations

Like this one, each of these turns on crossing a deadline that can't be undone.

The same setting, from another role

Each is set around Superhuman’s Superhuman Mail, written for a different role. They’re separate briefs, not the same scenario.