Spot handles areas, lengths and counts, and if a page has no scale set, it gives no numbers.
For construction estimators: point at a room and ask for its area, or say 'count all like this' to count the doors.
"The math is ours, not the AI's" is the right split for any engineering agent.
Maintenance chatbots live or die on whether the old work orders were written well.
It gives Claude, Codex and other agents 28 tools that run through Revu's own script engine, and when a license tier blocks headless scripting it does the job with open source PDF libraries and says which path ran. It is unofficial and free only for noncommercial use.
For estimators, project engineers and document controllers: hand off the repetitive submittal and drawing set chores and check the output like any markup.