Design

5 min read

Why the brief has six lines

We tested briefs from three to twelve lines with 212 teams. Six was the longest brief people finished every day.

Written by

Mei Chen

The first version of Shizuri wrote as much as it found. People read the top and skipped the rest, which meant the brief was worst exactly on the days it mattered most.

What happens to line seven

So we ran a simple test. Different teams got briefs capped at three, six, nine and twelve lines for a month. We measured one thing: did people read to the end?

Six lines was the longest brief that more than 90% of people finished every day. At nine, completion dropped to 61%. At twelve, people went back to their inbox.

The cap forces the product to make the hard call, instead of passing it to you. Everything that doesn’t fit is still one tap away, under “Everything else”.

From teams who read less

Quiet, in their words.

Drag to read · 6 teams

I used to start the day with 300 unread. Now I start it with six lines and a coffee.

Aiko Tanabe
Head of Operations · Ōmi Studio

The sources are the point. I can forward a line to my CEO and she can check it herself.

Rafael Moura
Chief of Staff · Porto Freight

Quiet hours gave me my afternoons back. The two things that came through actually needed me.

Hannah Kessler
Engineering Manager · Lindenfeld

Our Osaka and Lisbon teams finally overlap, even though they never meet on a call.

Kenji Arai
VP Product · Hanakaze Foods

We turned it on for 40 people on a Thursday. By Monday nobody asked for the weekly status meeting.

Priya Nair
COO · Tidewell

It says “I couldn't find that” when it can't. That is why I trust the rest of it.

Sofia Lind
Legal Counsel · Halvard Health
Two sources, four minutes

Try one quiet morning. Keep it if it gives you back an hour.

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© 2026 Shizuri · A fictional company for this templateMade quietly · Tokyo · Lisbon · Toronto

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