It also shows why this approach is questionable. Opus 4.6 without tool use or web access can provide chardets source code in full from memory/training data (ironically, including the licensing header): https://gist.github.com/yannleretaille/1ce99e1872e5f3b7b133e...

Wow. The guy who’s been thanklessly maintaining the project for 10+ years, with very little help, went way out of his way to produce a zero-reuse, ground-up reimplementation so that it could be MIT licensed... and the very-online copyleft crowd is crucifying him for it and telling him to kick rocks.

Unbelievable. This is why we can’t have nice things.

That's worth its own submission and discussion.