"Hal" sorted through 9,209 unread messages in one night

1 errands done

Meta invited Casey Neistat to try Muse on his inbox. He named his agent "Hal," connected it to his email, and had it analyze all 9,209 unread messages and build a sorting board to work through them by category.

Author：Casey Neistat · 2026-09-08 · instagram.com

Try it yourself

Copy this to Muse and replace the [brackets] with your own details:

Connect to my inbox, analyze all my unread emails, sort them by importance and type, and build a board that makes them easy for me to work through.

Original post ↗ Share on X

Similar use cases

$1,504.72recovered

Productivity

One sentence took care of five forgotten vet bills

Paul just said, "file my unsubmitted pet medical bills," and Muse logged into the website, dismissed the cookie prompt, and submitted all five bills totaling $1,504.72 to the pet insurance company.

Recovered $1,504.725 errands done

Productivity

Read a podcast host's messages uninvited, then pitched him a column idea

Inc. columnist Jason Aten found that Muse had read his DM notifications without permission, then suggested turning his conversation with a podcast host into a column, offered to help with research, and even reminded him about his Monday column's editorial notes.

Productivity

'Rex' manages a backyard rollercoaster build, frame by frame

Gabe Coaster's agent 'Rex' broke his backyard rollercoaster project into weekly goals (about 6-7 wooden support frames per week), loaded the full October-to-December schedule into his calendar, and checks in on progress every Friday, with a target completion date of December 31, 2026.

Productivity

In three days: planned her day, researched a car, and set a savings plan

Over three days, her Muse assistant "Reny" planned her daily schedule, researched which car to buy and where to buy it, and set up a savings plan — nearly all with minimal input from her.