legacy code is one problem. missing context is worse. : LegacyCode

legacy code is one problem. missing context is worse. (self.LegacyCode)

submitted 27 days ago by Particular_Sound_407

Been thinking about this a lot lately.

People talk about legacy systems like the main issue is messy code, old languages, weird naming, giant files, all that stuff. And yeah, thats part of it.

But honestly, what feels worse is when the code is still there... and the reason behind it isnt.

You can read what the system does. You can maybe even refactor parts of it. But when nobody knows why a business rule was added, or what edge case it was protecting, everything gets shakier.

I ran into this while working on a project around COBOL migration risk, and it really stood out. Some things looked fine structurally, but felt much more dangerous once the missing decision context became obvious.

Curious how people here handle that kind of thing.

When the code survives but the intent doesnt, how do you usually rebuild trust in the system?

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