PSA: that AI code tool marked a function as dead code, and I shipped the bug to 400 users in Austin

Oscar Campbell · 2026-10-08T00:55:03.149535+00:00

Last Friday I ran an AI refactor tool on our checkout code and it flagged a validation function as unused, so I deleted it without checking the call stack myself. Turns out a legacy webhook in our Austin office still hit that function, and 400 customers got bad orders before we caught it Saturday morning. How are you all verifying AI code suggestions before they go to prod?

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PSA: that AI code tool marked a function as dead code, and I shipped the bug to 400 users in Austin | AI Innovations - Thought Shares