Give it two PDF revisions of the drawings, say rev C and rev D. It lines the sheets up, shows each changed area as a crop with a list of changes for every sheet, and flags the ones that look like extras.
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The old set and the new one, as PDFs. Rev C and rev D, say.
Each sheet in the new set is matched to the same sheet in the old one.
Every area that moved, appeared or went is cut out as an image and listed under its sheet.
ChatGPT or Claude describes each change in plain words and flags the ones that look like extras.
The flagged ones go straight to the extra check, with a notice date and the running total.
Sheet A-201 · rev C to rev D
Island bench moved 600 mm towards the window Looks like an extraJoinery in your scope is to rev C. Goes to the extra check.
Pantry door swing reversed UnclearMay change the hardware. Worth asking before you order.
Dimension string corrected on elevation B Drafting onlyNothing to build differently.
Add Rory Tools first.
“Here are rev C and rev D of the drawings. What changed, and does any of it look like an extra?”
“Compare these two revisions and list the changes sheet by sheet”
Find Rory Tools in ChatGPT or Claude
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Templates and calculations only — not legal, financial or professional advice. Check everything against your contract and the law, or get advice, before you rely on it or send it. Folkware isn't responsible for how you use it. Read the terms.
This compares the two revisions you bring. Rory spots a new set when it lands in your inbox, compares it with the last one, and flags what changed before anyone builds from it.
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