How much of this code has no human on its recent record?
A read-only comprehension-debt Map of famous open-source repos. Every debtpercentage here is the same number in the same direction: the share of scored code, weighted by bytes, that no human has recently written, reviewed, or explained — higher is worse. The one other number on a card is coverage (how much of the code we scored), where higher is better. Open any repo for the full decomposition.
751 KB of code sits below 0.30 — that is the 23% above, as an absolute.
Top driver: 32% of this code, by bytes, has never had a substantive human review.
as of 2026-07-28coverage: scored 100% of the codegithub.com/bellard/quickjs ↗
249 KB of code sits below 0.30 — that is the 21% above, as an absolute.
Top driver: 100% of this code, by bytes, has no recent human author.
as of 2026-07-28coverage: scored 100% of the codegithub.com/karpathy/llm.c ↗
87.8 KB of code sits below 0.30 — that is the 20% above, as an absolute.
Top driver: 47% of this code, by bytes, has never had a substantive human review.
as of 2026-07-28coverage: scored 100% of the codegithub.com/karpathy/nanochat ↗
181 KB of code sits below 0.30 — that is the 17% above, as an absolute.
Top driver: 28% of this code, by bytes, has never had a substantive human review.
as of 2026-07-28coverage: scored 100% of the codegithub.com/simonw/llm ↗
62.1 KB of code sits below 0.30 — that is the 13% above, as an absolute.
Top driver: 71% of this code, by bytes, has no recent human author.
as of 2026-07-28coverage: scored 83% of the codegithub.com/expressjs/express ↗
190 KB of code sits below 0.30 — that is the 7% above, as an absolute.
Top driver: 18% of this code, by bytes, has no recent human author.
as of 2026-07-28coverage: scored 74% of the codegithub.com/honojs/hono ↗