design-patterns

SKILL.md

Classic object-oriented design patterns for building flexible, maintainable software.

| Factory Method | Creating objects without specifying exact class | Medium | | Singleton | Need single global instance | Easy | | Builder | Complex construction with many optional params | Medium | | Decorator | Adding behaviors dynamically | Medium | | Facade | Simplifying complex library/subsystem | Easy |

| Adapter | Integrating incompatible interfaces | Easy | | Observer | Multiple objects need state change notifications | Medium | | Strategy | Switching algorithms at runtime | Medium | | Command | Undo/redo, queuing, scheduling operations | Medium | | State | Object behavior varies by internal state | Hard |

在重構代碼或設計靈活的系統時使用。通過 Python 示例涵蓋創建、結構和行為模式。 來源：bfmcneill/agi-marketplace。

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