Agreed.this paper studied 33k+ agent-authored PRs on GitHub (https://arxiv.org/pdf/2601.15195)

#1 rejection reason: missing context. 80% needed human fixes. Agents can write code fine. They just don't know what "done" looks like in your codebase.

Count successful merges into repos with real history instead of LOC and the hard part is specification, not execution.

Wrote about this topic @ https://www.augmentcode.com/blog/the-end-of-linear-work