# Runtime Behavior Extension

> The ability to add responsibilities to an object dynamically at runtime by wrapping it.

Record: `lex:runtime-behavior-extension`
Kind: capability
Layer: [Design Patterns Core](https://banes-lab.com/records/layer/design-patterns-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lex-runtime-behavior-extension

## category

- [Structural Patterns](https://banes-lab.com/records/lex-category/structural-patterns.md)

## referenced-by

- [Decorator Pattern](https://banes-lab.com/records/arch/decorator-pattern.md)