Developed support for default value arguments in the Elixir SDK within the dagger/dagger repository, enabling Elixir developers to specify optional parameters with defaults and reducing repetitive code. This work involved enhancing the SDK’s type system to accurately handle defaulted arguments, thereby improving type-safety and developer experience. Integration tests were introduced to ensure robust end-to-end validation of the new feature, and documentation was updated to reflect these changes. The implementation leveraged Elixir and Go, focusing on SDK development and comprehensive testing. These improvements streamline Elixir SDK usage and facilitate faster adoption of new capabilities across the Dagger integration ecosystem.