Mitchell Cohen

Software engineer writing about side projects, tooling, and things worth sharing.

How Claude Code Saved My Application from a Catastrophic Deletion

Ideochrom is a free web tool I built for generating publication-ready chromosome karyotype ideograms. I don’t make money from it — if anything, I lose money. It pales in comparison to my surf fishing hobby, where lures, terminal tackle, and other gear I buy to “assure” I’ll catch something add up by the end of the season. But it’s a hobby project that genuinely helps my colleague and his lab, so I keep it running. ...

June 8, 2026 · 3 min · Mitchell Cohen

Redesigning Ideochrom's UI with Claude Code

Ideochrom is a free web tool I built for generating publication-ready chromosome karyotype ideograms. Genomics researchers use it to visualize copy-number events, gene locations, and structural rearrangements on human (and other) chromosomes — without installing anything. The science backend was solid. The UI was not. What v1.6 looked like Version 1.6 was a developer’s first pass. Giant serif header filling half the screen. Browser-default <input type="file"> elements. A blank gray rectangle where the preview would eventually appear. It worked, but it communicated “unfinished side project” more than “tool you’d trust with research figures.” ...

June 4, 2026 · 3 min · Mitchell Cohen