While working with larger React / Next.js codebases, I noticed a lot of PR review time goes into understanding the impact of a change rather than the change itself. Things like:

what depends on this? what else could this affect? how far does this propagate?

usually require a lot of manual tracing across files and components.

So I started building Devlens — a tool that visualizes the codebase as a graph and shows the “blast radius” of components/changes to help with PR reviews, onboarding, and understanding unfamiliar parts of a system.

Curious whether teams here would actually find something like this useful in real workflows, or if this mostly gets solved through experience and familiarity with the codebase over time.

Website: https://devlens.io GitHub: https://github.com/devlensio/devlensOSS