A few months later you find out it is made of PU foam and printed waxed paper. A misplaced knee could bring it down. It’s likely to completely fall apart in a year. Is that irrelevant?
You can't test if a codebase will be extensible or maintainable as requirements change in the future, if the abstraction level or architecture is sound - that's down to code quality measures like the ones used here. LLMs are very good at slightly cheating to pass tests even when the implementation is wrong. Introducing subjectivity - the kind of input a human will provide - leads to improved output.
https://senior-swe-bench.snorkel.ai/blog/2026-06-16-how-it-w...