GitHub "Lines Viewed" extension to keep you sane reviewing long AI PRs
I was frustrated with how bad a signal of progress through a big PR "Files viewed" was, so I made a "Lines viewed" indicator to complement it. Designed to look like a stock Github UI element - even respects light/dark theme. Runs fully locally, no API calls. Splits insertions and deletions by default, but you can also merge them into a single "lines" figure in the settings.
In plain words
This Chrome extension adds a "Lines Viewed" indicator to GitHub pull requests, complementing the existing "Files Viewed" metric to better track progress through large code reviews. Designed to match GitHub's native interface with light and dark theme support, it runs entirely locally without making API calls. Users can view insertions and deletions separately or combine them into a single lines count through customizable settings.
written from the facts on this page · September 2026
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