I show two parallel Opus 4.6 agents build a fully functioning Rust regex engine after ~1,273 Claude sessions and 1.7K lines of code.
As I do not have the resources to build a c-compiler like is done in the original work by Carlini, the next task I am tackling is an embedded SQLite-like database engine in rust, which I predict to be 1 OOM larger in terms of LOC.
At the beginning you say that there were 14 sessions but later (and in this post) say 1,273 sessions. The token counts you give seem to match a smaller number of sessions, so I’m wondering what the 1,273 number is?
Yeah. Sorry for the confusion. In my LinkedIn and X post I mentioned that the twelve hundred seventy three includes all of the sessions which were rate limited and that’s also in the appendix. I only added that number in the title so that it would be flashier. In reality there are only 14 sessions where Claude was not rate limited.