I designed Sharpee and generated the code with Claude Code. About six months in I had Claude generate a manual for the language. Then I had this crazy idea of testing the manual with a completely dummy instance of Claude in a VM.

Nothing solidified Sharpee more than “compiling” this manual chapter by chapter.

But even that left gaps. I then designed a true DSL called Chord that compiles to Sharpee and this really ramped up the solidity of Sharpee.