November 29, 2025
Bot code, human blowup
OCaml maintainers reject massive AI-generated pull request
13k-line AI code dump rejected; devs cry copyright, chaos, and “beats me” vibes
TLDR: OCaml maintainers rejected a 13,000‑line AI-written change adding debugger support, citing copyright worries and review overload. Comments exploded with bans-and-memes energy, branding it “AI slop,” while a few admitted the feat was impressive—spotlighting how open source will handle giant bot-written patches.
The maintainers of OCaml just slammed the door on a 13,000‑line, AI‑generated code drop, and the comment section turned into a circus. The PR tried to add DWARF—a standard debugging format used by tools like lldb and gdb—to OCaml’s native compiler. Dev Joel Reymont bragged “I did not write a single line of code,” steering Anthropic’s Claude instead, and even shrugged when some files credited Jane Street engineer Mark Shinwell: “Beats me, AI decided to do so.” Maintainer Gabriel Scherer cited copyright concerns, review overload, and that AI code is harder to vet, and closed the PR, noting others are already building DWARF support elsewhere.
Then the crowd went feral. dmitrygr thundered that anyone answering “beats me” about code they submit should be banned from compilers. dnoberon called Reymont “infamous,” pointing to a Zig “wall of shame.” BinaryIgor declared “AI slop at its highest.” suspended_state pushed back that parts of the reporting were inaccurate. Meme‑watch: “beats me” became the day’s catchphrase, while jokes about “PR tsunamis” and bot‑written credit rolls flew. A few admitted the feat was impressive, but the vibe was clear: open source won’t rubber‑stamp giant bot patches—especially when nobody wants to own or maintain them.
Key Points
- •OCaml maintainers rejected a 13,000+ line AI-generated PR adding DWARF debugging to the native compiler.
- •Reasons included copyright concerns, lack of reviewer resources, absence of prior design discussion, and misalignment with project practices.
- •The PR was generated using Anthropic’s Claude Code, with submitter Joel Reymont guiding the AI without writing code directly.
- •Parts of the PR credited Mark Shinwell of Jane Street Europe; contributors said it appeared largely based on OxCaml, which already includes DWARF support.
- •Maintainer Gabriel Scherer closed the PR, citing review bottlenecks and the project’s inability to work with such large AI-generated contributions.