alt Hacker NewsEvery new model and you might as well chuck 90% of that knowledge in the bin.
Last Claude major version they released a blog post basically telling you to chuck away your Claude.md file and start again.
It was only 18 months ago when people were telling you to use ultrathink:
https://news.ycombinator.com/item?id=43739997
And then that went away about a year ago, and now it’s sort of back again but not quite as it was.
I really don’t want to see code generated by Claude without some constraint like rules in a Claude.md file. Even Fable on high is lazy enough to forget a ton of things that a senior engineer would not. For example tracing and handling all unhappy paths, not repeating code, not writing terrible doc strings, etc.
We are using quite a big list of rules and the output is significantly more aligned with what we interpret as “good” code.