Yes
The context windows are big enough now that it can learn from a mix of summarized docs and surrounding examples and get it nearly right, nearly all the time
mike_hearn on Hacker News
In the thread “The Bitter Prediction”, replying to this comment
Helped: Big context windows and good documentation.
… Claude routinely uses internal APIs and frameworks on one of my projects that aren't public. The context windows are big enough now that it can learn from a mix of summarized docs and surrounding examples and get it nearly right, nearly all the time. There is an interesting aspect to this whereby there's maybe more incentive to open source stuff now just to get usage examples in the training set. …