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AI in the physical world.

Opinion, guides, stories and news from the team building Sully. Written for people who walk sites for a living, and useful on its own whether or not you ever use us.

A red brick boundary wall and gate pier beside a domestic driveway in late afternoon light.
Guide

A capture routine for pre-works condition surveys

The baseline is the whole product, and its value is decided years later by someone you have never met. What to capture so it holds when the claim arrives.

Jimmy Horan · Founder, Hey Sully · 5 min read
Read
A view straight through a series of aligned doorways receding through empty rooms.
Guide

Handing your walk to someone else

Most site records are captured by one person and written up by another. Six things that make the handover survive, and one that quietly breaks it.

Jimmy Horan · 4 min read
A rendered apartment facade of identical windows, one of them open.
Opinion

The checklist is not the job

Fixed-field capture is very good at recording what someone anticipated, and structurally incapable of recording what you actually found. A note on what that costs.

Jimmy Horan · 4 min read
A ceiling corner with a water stain spreading from the wall junction.
Opinion

What accuracy actually means on a site walk

Not whether a model labels a crack correctly. Whether the thing you noticed at 10:40am is still in the report on Thursday. Six things that routinely do not survive the trip back to the office.

Jimmy Horan · 6 min read
A closed square access hatch set into a plain painted ceiling.
Guide

What AI still can't see on a site walk

Vision models are genuinely good at some things on a building and genuinely blind to others. Here is where the line sits, and what to keep doing yourself.

Jimmy Horan · 4 min read
A plain concrete stairwell in a residential block, seen from a half-landing.
Guide

How to narrate a site walk

Six habits that make a walkthrough still useful six months later. They work with any phone, and they work whether or not anything clever ever reads them.

Jimmy Horan · 4 min read
A small, plain, empty meeting room with daylight through a window.
Guide

Questions to ask before AI touches a report you sign

A due-diligence checklist for a practice putting AI anywhere near work that carries a signature. Written to be used against us as much as anyone else.

Jimmy Horan · 4 min read
A wall of many identical small white tiles filling the frame.
Opinion

Two hundred photos is not a record

What separates a folder of images from something that holds up: time, place, sequence, and the words that were said. Mostly fixable without buying anything.

Jimmy Horan · 4 min read

For the longer argument behind the product — why we are building Sully, and how we think a practice should adopt AI — read our thinking.