When it gets to a more medium size, it will often produce something that will appear to work but actually doesn't
skippyboxedhero on Hacker News
10-20 issue implementations
In the thread “Coding with LLMs in the summer of 2025 – an update”
Helped: Small self-contained features with test coverage; writing issues.
Got in the way: Medium-sized changes producing code that appears to work but doesn't.
… When the change is very small, self-contained feature/refactor it can mostly work alone, if you have tests that cover the feature then it is relatively safe (and you can do other stuff because it is running in an action, which is a big plus...write the issue and you are done, sometimes I have had Claude write the issue too). When it gets to a more medium size, it will often produce something that will appear to work but actually doesn't. Maybe I don't have test coverage and it is my fault but it will do this the majority of the time. …