Commit to documenting one shared regex

Write a contract note for a shared regex in a validator, fraud rule, log extractor, analytics import, or search feature. A regex that another person may edit, review, debug, or rely on for a business metric. When I see a regex comment that says only "do not touch" or "magic" When a shared regex has no examples or non-examples near the code When a teammate asks what a regex is supposed to match during review When I document [regex name], I will write: Purpose: [job]. Owner: [team/person]. Flags: [flags and why]. Matches: [two examples]. Does not match: [two non-examples]. Known…

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