The dark index · edition of 2026-08-12
How much of the most-starred code on GitHub had no human on its recent record
of the code in the 100 most-starred repositories on GitHub had nobody on its recent record on 2026-08-12: no human had written or prompted it in the preceding 180 days. Weighted by bytes, so the big repositories count for more than the small ones.
Measured with fathohm 1.5.1, the clock pinned to 2026-08-12T00:00:00Z. This is a fixed edition: nothing on this page changes when the index is measured again. The current edition is where the newest sweep lands.
This is not comprehension debt
Comprehension debt — code no human has recently written, reviewed, or explained, measured from the record rather than from a survey — is the thing Fathohm exists to measure, and the term is Jason Gorman’s, carried by Addy Osmani, not ours. This page does not measure it. What it measures is narrower and exact: the share of a repository’s code that no human wrote or prompted inside the window. Git records every commit’s author and date, and keeps no review record at all — so a file can be dark here and still have been read closely by three people that week.
How these were chosen
The index is the 100 most-starred, non-archived repositories on GitHub with a push in the 180-day measurement window — nothing else selects. What a repository contains determines its weight in the headline, never its membership.
Every row
Ordered by weight — how much of the index’s bytes each repository carries — because that is the order in which a row moved the headline. Reproduce any of them with the clock this edition pinned: npx fathohm read <repo> --now 2026-08-12T00:00:00Z.