The Jellyfish Problem Trend 2026

In software development, "The Jellyfish Problem" describes a codebase with a small, rigid core and a sprawling, tangled periphery. This structure makes features difficult to extend without breaking the central logic. It's used to identify architectural debt, guiding refactoring toward modular design. Engineering teams and technical leads benefit by preventing system paralysis, enabling faster iteration and more maintainable, scalable applications.