Not all technical debt is a problem. Some code is "messy" but works and hasn't been touched in two years. That’s low-interest debt. Leave it alone.
A Tech Lead develops a Debt Radar to identify "High-Interest Debt"—the parts of the code that slow down every single sprint.
Start by categorising your debt:
1. Deliberate Debt: We rushed to meet a deadline. We knew it wasn't perfect.
2. Outdated Debt: The system evolved, but this module didn't.
Identify the debt that hurts your team's daily velocity. That is where you invest your refactoring time.
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