generative design and dynamo blog by weeklydynamo Newsletter Source

 Part 4 of a series — a Dynamo tunnel geometry that was already finished, a 39-sheet Excel workbook it had never been wired to, the web viewer built to referee the two, and the Revit add-in at the end of it. Two AI agents worked this job, and the division of labour between them flipped twice. What made the arrangement work had nothing to do with which one was "the implementer". The more useful half is the second: a month in, the instruction stopped being "fix it" and became "what should I be explaining to you?" Who did what — and why the split kept flipping The role contract was written down up front, in English, before either agent touched the geometry. Codex is the primary implementer and live artifact operator. Claude Code is the second reviewer, long-context planner, architecture critic, and document-structure reviewer. That is a clean separation and it lasted about four instructions. The handover document that carried it is worth readin...

 Part 3 of a series — a Dynamo tunnel geometry that was already finished, a 39-sheet Excel workbook it had never been wired to, the web viewer built to referee the two, and the Revit add-in at the end of it. Every drawing carries two kinds of line that look nearly identical to a machine and completely different to a person. One is the edge of real concrete. The other is a graphic whose only job is to say how big that concrete is. This post is about the second kind being easier for a computer to find than the first. That inversion cost more of the 45 days than anything else. 1. Two layers on every sheet Automatic line detection on the left utility detail. Red and blue mark detected segments — and they cover the dimension lines exactly as confidently as they cover the wall of the duct. The same detector on the right detail. Every extension line, witness line and leader is a clean straight segment. Nothing in the raster says which of them is a real edge. The traced outl...