Claude Code uses Bun written in Rust now

Re:Claude Code uses Bun written in Rust now by pianopatrick on Sunday July 19, 2026 @07:18PM (#48972600)

Sometimes I think that if we are willing to burn tokens and rely on compilers in a loop we should be using languages that can catch as many errors as possible at compile time.

Like Ada or Ocaml or Haskell or something.

Or even require like MC / DC testing or MISRA C verification.

Or even some of the languages that apply Hoare checks, like Ada SPARK or FRAMA-C or VALE or whatever.

I don't have the budget to test how that would work but it seems interesting.

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Re:Claude Code uses Bun written in Rust now by hexasquid on Sunday July 19, 2026 @09:02PM (#48973282)

I presume haskell applications similar to claude code are well represented in the training data.

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Re:Claude Code uses Bun written in Rust now by pianopatrick on Sunday July 19, 2026 @09:25PM (#48973418)

There was a post recently from a guy who used Haskell with AI agents. If I remember correctly he said the type checking did catch errors. The problem was the compiler was very slow, which slowed down the feedback loop and output. I think he switched to Python.

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