Code Smell
Version 1.0.0 · Updated 2026-07-30
CORE DEFINITION
A characteristic in code that is not superficially a bug but hints at deeper design problems (e.g., overly long functions, messy variable names). It smells 'off,' and if not addressed, it will rot into bigger problems in the future.
SCAFFOLDING EFFECT
Reduce cognitive load
- Intuitive diagnosis: not only for code. Management also has 'smells' (e.g., meetings always without conclusions, employees avoiding eye contact). Don't wait for an accident to fix; when you smell a smell, refactor the process immediately.
Anchor fast decisions
Certain code structure characteristics (overly long functions, duplicated code, too many parameters, large classes, confusing naming) do not immediately cause failures, but they indicate fragile design, high coupling, or unclear responsibilities, which over time evolve into defects. Smells are early signals of maintainability issues, not functional bugs.
MINIMUM ACTION
In progress 0/4Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Code_smellverified
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