To add basic logging at each major step of the pipeline — scrape started, change detected, extraction done, alert sent — instead of only adding print statements when something broke. Debugging reactively — only adding console logs after something failed, then removing them once it was fixed. Because when something goes wrong days later, I need to know exactly which step failed without having to reproduce the bug first — logs written in advance turn "something broke somewhere" into "step 3 failed for this specific reason." I assumed things will fail quietly at some point without me watching — a scheduled job especially, since nobody's staring at the terminal when it runs at 2am. A bit of extra code and slightly noisier output — but knowing exactly where and why something failed saves far more time than it costs to log it in the first place.

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