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Also "fixed and deployed; your trip should now go Cabrillo → 23rd → Geary". The snappy sentence at the start and the unicode arrows are both pretty big flags for AI writing.

Obviously it's fine to use AI for projects like these, but copy-pasting the response from a coding agent doesn't quite sit right with me.

No, as someone who writes a cycle routing engine by hand, this stuff is endemic when dealing with the trifecta of complex traffic regulations, inconsistent mapping data, and user preferences.

Looking at the repository [1], there are very strong signs for this being LLM generated. The README.md just smells of LLM tells, and Claude Code is being listed as "contributor".

I agree that the tone the parent commenter used wasn't the nicest but unfortunately, factually he is correct.

[1] https://github.com/almostimplemented/flattensf

No need to be a jerk.