Yes
it did ~a hundred conversions flawlessly (manual review, unit tests, testing and using in staging, roll out to production, no reported errors)
linsomniac on Hacker News
~a hundred conversions flawlessly
In the thread “FAWK: LLMs can write a language interpreter”, replying to this comment
Helped: Setting up an environment to compare existing and proposed formats.
… That's a really fascinating idea. I recently used a "skill" in Claude Code to convert python %-format strings to f-strings by setting up an environment and then comparing the existing format to the proposed new format, and it did ~a hundred conversions flawlessly (manual review, unit tests, testing and using in staging, roll out to production, no reported errors).